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SqMod/module/Library/MySQL.hpp
Sandu Liviu Catalin 15532298dc Implement field selection in the MySQL library.
2020-04-10 10:12:05 +03:00

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#pragma once
// ------------------------------------------------------------------------------------------------
#include "Base/Shared.hpp"
// ------------------------------------------------------------------------------------------------
#include "Library/Numeric/LongInt.hpp"
#include "Library/Utils/Buffer.hpp"
#include "Library/Chrono.hpp"
#include "Library/Chrono/Date.hpp"
#include "Library/Chrono/Datetime.hpp"
#include "Library/Chrono/Time.hpp"
#include "Library/Chrono/Timestamp.hpp"
// ------------------------------------------------------------------------------------------------
#include <unordered_map>
// ------------------------------------------------------------------------------------------------
#include <mysql.h>
// ------------------------------------------------------------------------------------------------
namespace SqMod {
/* ------------------------------------------------------------------------------------------------
* Handle validation.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
#define SQMOD_THROW_CURRENT(x, a) (x).ThrowCurrent(a, __FILE__, __LINE__)
#define SQMOD_VALIDATE(x) (x).Validate(__FILE__, __LINE__)
#define SQMOD_VALIDATE_CREATED(x) (x).ValidateCreated(__FILE__, __LINE__)
#define SQMOD_VALIDATE_PARAM(x, i) (x).ValidateParam((i), __FILE__, __LINE__)
#define SQMOD_VALIDATE_FIELD(x, i) (x).ValidateField((i), __FILE__, __LINE__)
#define SQMOD_VALIDATE_STEPPED(x) (x).ValidateStepped(__FILE__, __LINE__)
#define SQMOD_GET_VALID(x) (x).GetValid(__FILE__, __LINE__)
#define SQMOD_GET_CREATED(x) (x).GetCreated(__FILE__, __LINE__)
#define SQMOD_GET_STEPPED(x) (x).GetStepped(__FILE__, __LINE__)
#else
#define SQMOD_THROW_CURRENT(x, a) (x).ThrowCurrent(a)
#define SQMOD_VALIDATE(x) (x).Validate()
#define SQMOD_VALIDATE_CREATED(x) (x).ValidateCreated()
#define SQMOD_VALIDATE_PARAM(x, i) (x).ValidateParam((i))
#define SQMOD_VALIDATE_FIELD(x, i) (x).ValidateField((i))
#define SQMOD_VALIDATE_STEPPED(x) (x).ValidateStepped()
#define SQMOD_GET_VALID(x) (x).GetValid()
#define SQMOD_GET_CREATED(x) (x).GetCreated()
#define SQMOD_GET_STEPPED(x) (x).GetStepped()
#endif // _DEBUG
/* ------------------------------------------------------------------------------------------------
* Forward declarations.
*/
struct ConnHnd;
struct StmtHnd;
struct ResHnd;
// ------------------------------------------------------------------------------------------------
class Account;
class Column;
class Connection;
class ResultSet;
class Statement;
class Transaction;
/* ------------------------------------------------------------------------------------------------
* Common typedefs.
*/
typedef SharedPtr< ConnHnd > ConnRef;
typedef SharedPtr< StmtHnd > StmtRef;
typedef SharedPtr< ResHnd > ResRef;
/* ------------------------------------------------------------------------------------------------
* Replicate the values of a script Date type to a database time type.
*/
void SqDateToMySQLTime(const Date & value, MYSQL_TIME & t);
/* ------------------------------------------------------------------------------------------------
* Replicate the values of a script Date type to a database time type.
*/
void SqTimeToMySQLTime(const Time & value, MYSQL_TIME & t);
/* ------------------------------------------------------------------------------------------------
* Replicate the values of a script Date type to a database time type.
*/
void SqDatetimeToMySQLTime(const Datetime & value, MYSQL_TIME & t);
/* ------------------------------------------------------------------------------------------------
* Retrieve the lowercase name of a MySQL data-type.
*/
CSStr SqMySQLTypename(enum_field_types type);
/* ------------------------------------------------------------------------------------------------
* Retrieve the capitalized name of a MySQL data-type.
*/
CSStr SqMySQLTypenameC(enum_field_types type);
/* ------------------------------------------------------------------------------------------------
* Utility used to convert from database types to known types.
*/
template < typename T > struct DbConvTo;
/* ------------------------------------------------------------------------------------------------
* Specialization for signed 8 bit integer.
*/
template<> struct DbConvTo< Int8 >
{
static Int8 From(CSStr value, Ulong length, enum_field_types type, CSStr tn = _SC("Int8"));
};
/* ------------------------------------------------------------------------------------------------
* Specialization for unsigned 8 bit integer.
*/
template<> struct DbConvTo< Uint8 >
{
static Uint8 From(CSStr value, Ulong length, enum_field_types type, CSStr tn = _SC("Uint8"));
};
/* ------------------------------------------------------------------------------------------------
* Specialization for signed 16 bit integer.
*/
template<> struct DbConvTo< Int16 >
{
static Int16 From(CSStr value, Ulong length, enum_field_types type, CSStr tn = _SC("Int16"));
};
/* ------------------------------------------------------------------------------------------------
* Specialization for unsigned 16 bit integer.
*/
template<> struct DbConvTo< Uint16 >
{
static Uint16 From(CSStr value, Ulong length, enum_field_types type, CSStr tn = _SC("Uint16"));
};
/* ------------------------------------------------------------------------------------------------
* Specialization for signed 32 bit integer.
*/
template<> struct DbConvTo< Int32 >
{
static Int32 From(CSStr value, Ulong length, enum_field_types type, CSStr tn = _SC("Int32"));
};
/* ------------------------------------------------------------------------------------------------
* Specialization for unsigned 32 bit integer.
*/
template<> struct DbConvTo< Uint32 >
{
static Uint32 From(CSStr value, Ulong length, enum_field_types type, CSStr tn = _SC("Uint32"));
};
/* ------------------------------------------------------------------------------------------------
* Specialization for signed 64 bit integer.
*/
template<> struct DbConvTo< Int64 >
{
static Int64 From(CSStr value, Ulong length, enum_field_types type, CSStr tn = _SC("Int64"));
};
/* ------------------------------------------------------------------------------------------------
* Specialization for unsigned 64 bit integer.
*/
template<> struct DbConvTo< Uint64 >
{
static Uint64 From(CSStr value, Ulong length, enum_field_types type, CSStr tn = _SC("Uint64"));
};
/* ------------------------------------------------------------------------------------------------
* Specialization for 32 floating point.
*/
template<> struct DbConvTo< Float32 >
{
static Float32 From(CSStr value, Ulong length, enum_field_types type, CSStr tn = _SC("Float32"));
};
/* ------------------------------------------------------------------------------------------------
* Specialization for 64 floating point.
*/
template<> struct DbConvTo< Float64 >
{
static Float64 From(CSStr value, Ulong length, enum_field_types type, CSStr tn = _SC("Float64"));
};
/* ------------------------------------------------------------------------------------------------
* Specialization for boolean value.
*/
template<> struct DbConvTo< bool >
{
static bool From(CSStr value, Ulong length, enum_field_types type, CSStr tn = _SC("Boolean"));
};
/* ------------------------------------------------------------------------------------------------
* The structure that holds the data associated with a certain connection.
*/
struct ConnHnd
{
public:
// --------------------------------------------------------------------------------------------
typedef MYSQL Type; // The managed type.
// --------------------------------------------------------------------------------------------
typedef Type* Pointer; // Pointer to the managed type.
typedef const Type* ConstPtr; // Constant pointer to the managed type.
// --------------------------------------------------------------------------------------------
typedef Type& Reference; // Reference to the managed type.
typedef const Type& ConstRef; // Constant reference to the managed type.
// --------------------------------------------------------------------------------------------
typedef MYSQL_RES ResType; // Database result type.
public:
// --------------------------------------------------------------------------------------------
Pointer mPtr; // The connection handle resource.
// --------------------------------------------------------------------------------------------
Uint32 mErrNo; // Last received error string.
String mErrStr; // Last received error message.
// --------------------------------------------------------------------------------------------
Uint16 mPort; // Server port.
String mHost; // Host address.
String mUser; // User name user.
String mPass; // User password.
String mName; // Database name.
String mSocket; // Unix socket.
Ulong mFlags; // Client flags.
// --------------------------------------------------------------------------------------------
String mSSL_Key; // SSL key.
String mSSL_Cert; // SSL certificate.
String mSSL_CA; // SSL certificate authority.
String mSSL_CA_Path; // SSL certificate authority path.
String mSSL_Cipher; // SSL Cipher.
// --------------------------------------------------------------------------------------------
String mCharset; // Default connection character set.
// --------------------------------------------------------------------------------------------
bool mAutoCommit; // Whether autocommit is enabled on this connection.
bool mInTransaction; // Whether the connection is in the middle of a transaction.
/* --------------------------------------------------------------------------------------------
* Default constructor.
*/
ConnHnd();
/* --------------------------------------------------------------------------------------------
* Destructor.
*/
~ConnHnd();
/* --------------------------------------------------------------------------------------------
* Grab the current error in the connection handle.
*/
void GrabCurrent();
/* --------------------------------------------------------------------------------------------
* Grab the current error in the connection handle and throw it.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ThrowCurrent(CCStr act, CCStr file, Int32 line);
#else
void ThrowCurrent(CCStr act);
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Create the connection handle.
*/
void Create(const Account & acc);
/* --------------------------------------------------------------------------------------------
* Disconnect the managed connection handle.
*/
void Disconnect();
/* --------------------------------------------------------------------------------------------
* Execute a query on the server.
*/
Uint64 Execute(CSStr query, Ulong size = 0UL);
};
/* ------------------------------------------------------------------------------------------------
* The structure that holds the data associated with a certain bind point.
*/
struct StmtBind
{
public:
// --------------------------------------------------------------------------------------------
typedef MYSQL_STMT Type; // The managed type.
// --------------------------------------------------------------------------------------------
typedef Type* Pointer; // Pointer to the managed type.
typedef const Type* ConstPtr; // Constant pointer to the managed type.
// --------------------------------------------------------------------------------------------
typedef Type& Reference; // Reference to the managed type.
typedef const Type& ConstRef; // Constant reference to the managed type.
// --------------------------------------------------------------------------------------------
typedef MYSQL_BIND BindType; // Database bind type.
typedef MYSQL_TIME TimeType; // Database time type.
typedef my_bool BoolType; // Database boolean type.
public:
// --------------------------------------------------------------------------------------------
BoolType mIsNull; // Allows the database to specify if the parameter is null.
BoolType mError; // Allows the database if errors occured on this parameter.
Buffer mData; // Buffer to store non fundamental data for the parameter.
BindType * mBind; // The associated database bind point handle.
TimeType mTime; // Structure used to store time data from database.
// --------------------------------------------------------------------------------------------
union
{
Uint64 mUint64; // Store unsigned integer values for the parameter.
Int64 mInt64; // Store signed integer values for the parameter.
Int32 mInt32[2]; // Store 32 bit signed integer values for the parameter.
Float64 mFloat64; // Store 32 bit floating point values for the parameter.
Float32 mFloat32[2]; // Store 64 bit floating point values for the parameter.
};
public:
/* --------------------------------------------------------------------------------------------
* Default constructor.
*/
StmtBind()
: mIsNull(0), mError(0), mData(), mBind(nullptr), mTime(), mUint64(0)
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Copy constructor. (disabled)
*/
StmtBind(const StmtBind & o) = delete;
/* --------------------------------------------------------------------------------------------
* Move constructor. (disabled)
*/
StmtBind(StmtBind && o) = delete;
/* --------------------------------------------------------------------------------------------
* Copy assignment operator. (disabled)
*/
StmtBind & operator = (const StmtBind & o) = delete;
/* --------------------------------------------------------------------------------------------
* Move assignment operator. (disabled)
*/
StmtBind & operator = (StmtBind && o) = delete;
/* --------------------------------------------------------------------------------------------
* Retrieve the used buffer.
*/
CStr GetBuffer()
{
return mData ? mData.Data() : reinterpret_cast< CStr >(&mUint64);
}
/* --------------------------------------------------------------------------------------------
* Retrieve the buffer length.
*/
Ulong GetLength() const
{
return (mBind == nullptr) ? 0 : mBind->buffer_length;
}
/* --------------------------------------------------------------------------------------------
* Configure the input of a certain statement parameter.
*/
void SetInput(enum_field_types type, BindType * bind, CCStr buffer = nullptr, Ulong length = 0);
};
/* ------------------------------------------------------------------------------------------------
* The structure that holds the data associated with a certain statement handle.
*/
struct StmtHnd
{
public:
// --------------------------------------------------------------------------------------------
typedef MYSQL_STMT Type; // The managed type.
// --------------------------------------------------------------------------------------------
typedef Type* Pointer; // Pointer to the managed type.
typedef const Type* ConstPtr; // Constant pointer to the managed type.
// --------------------------------------------------------------------------------------------
typedef Type& Reference; // Reference to the managed type.
typedef const Type& ConstRef; // Constant reference to the managed type.
// --------------------------------------------------------------------------------------------
typedef MYSQL_BIND BindType; // Database bind type.
typedef MYSQL_TIME TimeType; // Database time type.
typedef my_bool BoolType; // Database boolean type.
public:
// --------------------------------------------------------------------------------------------
Pointer mPtr; // The managed statement handle.
// --------------------------------------------------------------------------------------------
Uint32 mErrNo; // Last received error string.
String mErrStr; // Last received error message.
// --------------------------------------------------------------------------------------------
Ulong mParams; // Number of parameters in the statement.
StmtBind * mBinds; // List of parameter binds.
BindType * mMyBinds; // List of parameter binds.
// --------------------------------------------------------------------------------------------
ConnRef mConnection; // Reference to the associated connection.
String mQuery; // The query string.
/* --------------------------------------------------------------------------------------------
* Default constructor.
*/
StmtHnd();
/* --------------------------------------------------------------------------------------------
* Destructor.
*/
~StmtHnd();
/* --------------------------------------------------------------------------------------------
* Grab the current error in the associated statement handle.
*/
void GrabCurrent();
/* --------------------------------------------------------------------------------------------
* Grab the current error in the associated statement handle and throw it.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ThrowCurrent(CCStr act, CCStr file, Int32 line);
#else
void ThrowCurrent(CCStr act);
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the associated statement handle and parameter index and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ValidateParam(Uint32 idx, CCStr file, Int32 line) const;
#else
void ValidateParam(Uint32 idx) const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Check whether a specific param index is within range.
*/
bool CheckParamIndex(Uint32 idx) const
{
return (idx < mParams);
}
/* --------------------------------------------------------------------------------------------
* Create the actual statement.
*/
void Create(const ConnRef & conn, CSStr query);
};
/* ------------------------------------------------------------------------------------------------
* The structure that holds the data associated with a certain field.
*/
struct ResBind
{
public:
// --------------------------------------------------------------------------------------------
typedef MYSQL_RES Type; // The managed type.
// --------------------------------------------------------------------------------------------
typedef Type* Pointer; // Pointer to the managed type.
typedef const Type* ConstPtr; // Constant pointer to the managed type.
// --------------------------------------------------------------------------------------------
typedef Type& Reference; // Reference to the managed type.
typedef const Type& ConstRef; // Constant reference to the managed type.
// --------------------------------------------------------------------------------------------
typedef MYSQL_FIELD FieldType; // Database field type.
typedef MYSQL_BIND BindType; // Database bind type.
typedef MYSQL_TIME TimeType; // Database time type.
typedef MYSQL_ROW RowType; // Database row type.
typedef my_bool BoolType; // Database boolean type.
// --------------------------------------------------------------------------------------------
typedef std::unordered_map< String, Uint32 > IndexMap;
public:
// --------------------------------------------------------------------------------------------
BoolType mIsNull; // Allows the database to specify if the field is null.
BoolType mError; // Allows the database if errors occured on this field.
Buffer mData; // Buffer to store non fundamental data for the field.
BindType * mBind; // The associated database bind point handle.
TimeType mTime; // Structure used to retrieve time data from database.
// --------------------------------------------------------------------------------------------
union
{
Uint64 mUint64; // Retrieve unsigned integer values from a field.
Int64 mInt64; // Retrieve signed integer values from a field.
Int32 mInt32[2]; // Retrieve 32 bit signed integer values from a field.
Float64 mFloat64; // Retrieve 32 bit floating point values from a field.
Float32 mFloat32[2]; // Retrieve 64 bit floating point values from the field.
};
public:
/* --------------------------------------------------------------------------------------------
* Default constructor.
*/
ResBind()
: mIsNull(0), mError(0), mData(), mBind(nullptr), mTime(), mUint64(0)
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Copy constructor. (disabled)
*/
ResBind(const ResBind & o) = delete;
/* --------------------------------------------------------------------------------------------
* Move constructor. (disabled)
*/
ResBind(ResBind && o) = delete;
/* --------------------------------------------------------------------------------------------
* Copy assignment operator. (disabled)
*/
ResBind & operator = (const ResBind & o) = delete;
/* --------------------------------------------------------------------------------------------
* Move assignment operator. (disabled)
*/
ResBind & operator = (ResBind && o) = delete;
/* --------------------------------------------------------------------------------------------
* Retrieve the used buffer.
*/
CStr GetBuffer()
{
return mData ? mData.Data() : reinterpret_cast< CStr >(&mUint64);
}
/* --------------------------------------------------------------------------------------------
* Retrieve the buffer length.
*/
Ulong GetLength() const
{
return mBind == nullptr ? 0 : mBind->buffer_length;
}
/* --------------------------------------------------------------------------------------------
* Configure the output to match the requirements of a certain field.
*/
void SetOutput(const FieldType & field, BindType * bind);
};
/* ------------------------------------------------------------------------------------------------
* The structure that holds the data associated with a certain result-set handle.
*/
struct ResHnd
{
public:
// --------------------------------------------------------------------------------------------
typedef MYSQL_RES Type; // The managed type.
// --------------------------------------------------------------------------------------------
typedef Type* Pointer; // Pointer to the managed type.
typedef const Type* ConstPtr; // Constant pointer to the managed type.
// --------------------------------------------------------------------------------------------
typedef Type& Reference; // Reference to the managed type.
typedef const Type& ConstRef; // Constant reference to the managed type.
// --------------------------------------------------------------------------------------------
typedef MYSQL_FIELD FieldType; // Database field type.
typedef MYSQL_BIND BindType; // Database bind type.
typedef MYSQL_TIME TimeType; // Database time type.
typedef MYSQL_ROW RowType; // Database row type.
typedef my_bool BoolType; // Database boolean type.
// --------------------------------------------------------------------------------------------
typedef std::unordered_map< String, Uint32 > IndexMap; // Name to index association of fields.
public:
// --------------------------------------------------------------------------------------------
Pointer mPtr; // The managed result-set handle.
// --------------------------------------------------------------------------------------------
Uint32 mFieldCount; // Number of fields in the result-set.
Ulong * mLengths; // Data length when the result-set came from a connection.
FieldType * mFields; // Fields in the results set.
ResBind * mBinds; // Bind wrappers.
BindType * mMyBinds; // Bind points.
RowType mRow; // Row data.
// --------------------------------------------------------------------------------------------
ConnRef mConnection; // Associated connection.
StmtRef mStatement; // Associated statement.
IndexMap mIndexes; // Field names and their associated index.
public:
/* --------------------------------------------------------------------------------------------
* Default constructor.
*/
ResHnd();
/* --------------------------------------------------------------------------------------------
* Destructor.
*/
~ResHnd();
/* --------------------------------------------------------------------------------------------
* Grab the current error in the associated statement or connection handle.
*/
void GrabCurrent();
/* --------------------------------------------------------------------------------------------
* Grab the current error in the associated statement or connection handle and throw it.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ThrowCurrent(CCStr act, CCStr file, Int32 line);
#else
void ThrowCurrent(CCStr act);
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the statement handle and field index and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ValidateField(Uint32 idx, CCStr file, Int32 line) const;
#else
void ValidateField(Uint32 idx) const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Check whether a specific field index is within range.
*/
bool CheckFieldIndex(Uint32 idx) const
{
return (idx < mFieldCount);
}
/* --------------------------------------------------------------------------------------------
* Retrieve the field index associated with the specified name.
*/
Uint32 GetFieldIndex(CSStr name);
/* --------------------------------------------------------------------------------------------
* Create the result-set from a Connection.
*/
void Create(const ConnRef & conn);
/* --------------------------------------------------------------------------------------------
* Create the result-set from a Statement.
*/
void Create(const StmtRef & stmt);
/* --------------------------------------------------------------------------------------------
* Returns the current position of the row cursor for the last Next().
*/
Uint64 RowIndex() const;
/* --------------------------------------------------------------------------------------------
* Returns the number of rows in the result set.
*/
Uint64 RowCount() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the next row from the query.
*/
bool Next();
/* --------------------------------------------------------------------------------------------
* Seeks to an arbitrary row in a query result set.
*/
bool SetRowIndex(Uint64 index);
};
/* ------------------------------------------------------------------------------------------------
* Helper class containing shared connection information to avoid repetition.
*/
class Account
{
public:
// --------------------------------------------------------------------------------------------
typedef std::unordered_map< String, String > Options;
private:
// --------------------------------------------------------------------------------------------
Uint16 m_Port; // Server port.
String m_Host; // Host address.
String m_User; // User name.
String m_Pass; // User password.
String m_Name; // Database name.
String m_Socket; // Unix socket.
Ulong m_Flags; // Client connection flags.
// --------------------------------------------------------------------------------------------
String m_SSL_Key; // SSL key.
String m_SSL_Cert; // SSL certificate.
String m_SSL_CA; // SSL certificate authority.
String m_SSL_CA_Path; // SSL certificate authority path.
String m_SSL_Cipher; // SSL Cipher.
// --------------------------------------------------------------------------------------------
Options m_Options; // Option container.
// --------------------------------------------------------------------------------------------
bool m_AutoCommit; // Toggle autocommit.
// --------------------------------------------------------------------------------------------
static const String s_String; // Dummy used to return a reference to a null string.
public:
/* --------------------------------------------------------------------------------------------
* Base Constructor.
*/
Account(CSStr host, CSStr user)
: Account(host, user, _SC(""), _SC(""), 3306, _SC(""))
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Base Constructor.
*/
Account(CSStr host, CSStr user, CSStr pass)
: Account(host, user, pass, _SC(""), 3306, _SC(""))
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Base Constructor.
*/
Account(CSStr host, CSStr user, CSStr pass, CSStr name)
: Account(host, user, pass, name, 3306, _SC(""))
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Base Constructor.
*/
Account(CSStr host, CSStr user, CSStr pass, CSStr name, SQInteger port)
: Account(host, user, pass, name, port, _SC(""))
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Base Constructor.
*/
Account(CSStr host, CSStr user, CSStr pass, CSStr name, SQInteger port, CSStr socket);
/* --------------------------------------------------------------------------------------------
* Copy constructor.
*/
Account(const Account & o) = default;
/* --------------------------------------------------------------------------------------------
* Move constructor.
*/
Account(Account && o) = default;
/* --------------------------------------------------------------------------------------------
* Destructor.
*/
~Account() = default;
/* --------------------------------------------------------------------------------------------
* Copy assignment operator.
*/
Account & operator = (const Account & o) = default;
/* --------------------------------------------------------------------------------------------
* Move assignment operator.
*/
Account & operator = (Account && o) = default;
/* --------------------------------------------------------------------------------------------
* Used by the script engine to compare two instances of this type.
*/
Int32 Cmp(const Account & o) const;
/* --------------------------------------------------------------------------------------------
* Used by the script engine to convert an instance of this type to a string.
*/
CSStr ToString() const;
/* --------------------------------------------------------------------------------------------
* Used by the script engine to retrieve the name from instances of this type.
*/
static SQInteger Typename(HSQUIRRELVM vm);
/* --------------------------------------------------------------------------------------------
* Retrieve the host address specified during creation.
*/
const String & GetHost() const
{
return m_Host;
}
/* --------------------------------------------------------------------------------------------
* Modify the host address specified during creation.
*/
void SetHost(CSStr addr);
/* --------------------------------------------------------------------------------------------
* Retrieve the user name specified during creation.
*/
const String & GetUser() const
{
return m_User;
}
/* --------------------------------------------------------------------------------------------
* Modify the user name specified during creation.
*/
void SetUser(CSStr user)
{
m_User.assign(user != nullptr ? user : _SC(""));
}
/* --------------------------------------------------------------------------------------------
* Retrieve the password specified during creation.
*/
const String & GetPass() const
{
return m_Pass;
}
/* --------------------------------------------------------------------------------------------
* Modify the password specified during creation.
*/
void SetPass(CSStr pass)
{
m_Pass.assign(pass != nullptr ? pass : _SC(""));
}
/* --------------------------------------------------------------------------------------------
* Retrieve the database name specified during creation.
*/
const String & GetName() const
{
return m_Name;
}
/* --------------------------------------------------------------------------------------------
* Modify the database name specified during creation.
*/
void SetName(CSStr name)
{
m_Name.assign(name != nullptr ? name : _SC(""));
}
/* --------------------------------------------------------------------------------------------
* Retrieve the server port specified during creation.
*/
Uint16 GetPortNum() const
{
return m_Port;
}
/* --------------------------------------------------------------------------------------------
* Modify the server port specified during creation.
*/
void SetPortNum(SQInteger port);
/* --------------------------------------------------------------------------------------------
* Retrieve the server socket.
*/
const String & GetSocket() const
{
return m_Socket;
}
/* --------------------------------------------------------------------------------------------
* Modify the server socket.
*/
void SetSocket(CSStr socket)
{
m_Socket.assign(socket != nullptr ? socket : _SC(""));
}
/* --------------------------------------------------------------------------------------------
* Retrieve the current client connection flags.
*/
SQInteger GetFlags() const
{
return m_Flags;
}
/* --------------------------------------------------------------------------------------------
* Modify the current client connection flags.
*/
void SetFlags(SQInteger flags)
{
m_Flags = flags;
}
/* --------------------------------------------------------------------------------------------
* Modify the current client connection flags.
*/
void EnableFlags(SQInteger flags)
{
m_Flags |= flags;
}
/* --------------------------------------------------------------------------------------------
* Modify the current client connection flags.
*/
void DisableFlags(SQInteger flags)
{
m_Flags |= flags;
m_Flags ^= flags;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the SSL key.
*/
const String & GetSSL_Key() const
{
return m_SSL_Key;
}
/* --------------------------------------------------------------------------------------------
* Modify the SSL key.
*/
void SetSSL_Key(CSStr key)
{
m_SSL_Key.assign(key != nullptr ? key : _SC(""));
}
/* --------------------------------------------------------------------------------------------
* Retrieve the SSL certificate.
*/
const String & GetSSL_Cert() const
{
return m_SSL_Cert;
}
/* --------------------------------------------------------------------------------------------
* Modify the SSL certificate.
*/
void SetSSL_Cert(CSStr cert)
{
m_SSL_Cert.assign(cert != nullptr ? cert : _SC(""));
}
/* --------------------------------------------------------------------------------------------
* Retrieve the SSL certificate authority.
*/
const String & GetSSL_CA() const
{
return m_SSL_CA;
}
/* --------------------------------------------------------------------------------------------
* Modify the SSL certificate authority.
*/
void SetSSL_CA(CSStr ca)
{
m_SSL_CA.assign(ca != nullptr ? ca : _SC(""));
}
/* --------------------------------------------------------------------------------------------
* Retrieve the SSL certificate authority path.
*/
const String & GetSSL_CA_Path() const
{
return m_SSL_CA_Path;
}
/* --------------------------------------------------------------------------------------------
* Modify the SSL certificate authority path.
*/
void SetSSL_CA_Path(CSStr capath)
{
m_SSL_CA_Path.assign(capath != nullptr ? capath : _SC(""));
}
/* --------------------------------------------------------------------------------------------
* Retrieve the SSL cipher.
*/
const String & GetSSL_Cipher() const
{
return m_SSL_Cipher;
}
/* --------------------------------------------------------------------------------------------
* Modify the SSL cipher.
*/
void SetSSL_Cipher(CSStr cipher)
{
m_SSL_Cipher.assign(cipher != nullptr ? cipher : _SC(""));
}
/* --------------------------------------------------------------------------------------------
* Set the SSL information.
*/
void SetSSL(CSStr key, CSStr cert, CSStr ca, CSStr ca_path, CSStr cipher);
/* --------------------------------------------------------------------------------------------
* See whether autocommit is enabled or not.
*/
bool GetAutoCommit() const
{
return m_AutoCommit;
}
/* --------------------------------------------------------------------------------------------
* Set whether autocommit should be enabled or not.
*/
void SetAutoCommit(bool toggle)
{
m_AutoCommit = toggle;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the entire options container as a table.
*/
const Options & GetOptions() const
{
return m_Options;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the entire options container as a table.
*/
Table GetOptionsTable() const;
/* --------------------------------------------------------------------------------------------
* Retrieve a value from the options container.
*/
const String & GetOption(CSStr name) const;
/* --------------------------------------------------------------------------------------------
* Set a value in the options container.
*/
void SetOption(CSStr name, CSStr value);
/* --------------------------------------------------------------------------------------------
* Remove a value from the options container.
*/
void RemoveOption(CSStr name);
/* --------------------------------------------------------------------------------------------
* Retrieve the number of values in the options container.
*/
Uint32 OptionsCount() const
{
return static_cast< Uint32 >(m_Options.size());
}
/* --------------------------------------------------------------------------------------------
* See whether the options container is empty or not.
*/
bool OptionsEmpty() const
{
return m_Options.empty();
}
/* --------------------------------------------------------------------------------------------
* Remove all the options from the options container.
*/
void OptionsClear()
{
m_Options.clear();
}
/* --------------------------------------------------------------------------------------------
* Create a connection with the current account information.
*/
Connection Connect() const;
};
/* ------------------------------------------------------------------------------------------------
* Allows management and interaction with a connection handle.
*/
class Connection
{
private:
// --------------------------------------------------------------------------------------------
ConnRef m_Handle; // Reference to the actual database connection.
protected:
/* --------------------------------------------------------------------------------------------
* Validate the managed connection handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void Validate(CCStr file, Int32 line) const;
#else
void Validate() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the managed connection handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ValidateCreated(CCStr file, Int32 line) const;
#else
void ValidateCreated() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the managed connection handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
const ConnRef & GetValid(CCStr file, Int32 line) const;
#else
const ConnRef & GetValid() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the managed connection handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
const ConnRef & GetCreated(CCStr file, Int32 line) const;
#else
const ConnRef & GetCreated() const;
#endif // _DEBUG
public:
/* --------------------------------------------------------------------------------------------
* Default constructor.
*/
Connection()
: m_Handle()
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Base constructor.
*/
Connection(const Account & acc)
: m_Handle(new ConnHnd())
{
m_Handle->Create(acc);
}
/* --------------------------------------------------------------------------------------------
* Base constructor.
*/
Connection(const ConnRef & conn)
: m_Handle(conn)
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Copy constructor.
*/
Connection(const Connection & o) = default;
/* --------------------------------------------------------------------------------------------
* Move constructor.
*/
Connection(Connection && o) = default;
/* --------------------------------------------------------------------------------------------
* Copy assignment operator.
*/
Connection & operator = (const Connection & o) = default;
/* --------------------------------------------------------------------------------------------
* Move assignment operator.
*/
Connection & operator = (Connection && o) = default;
/* --------------------------------------------------------------------------------------------
* Used by the script engine to compare two instances of this type.
*/
Int32 Cmp(const Connection & o) const
{
if (m_Handle.Get() == o.m_Handle.Get())
{
return 0;
}
else if (m_Handle.Get() > o.m_Handle.Get())
{
return 1;
}
else
{
return -1;
}
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to convert an instance of this type to a string.
*/
CSStr ToString() const
{
return m_Handle ? mysql_get_host_info(m_Handle->mPtr) : _SC("");
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to retrieve the name from instances of this type.
*/
static SQInteger Typename(HSQUIRRELVM vm);
/* --------------------------------------------------------------------------------------------
* Retrieve the associated connection handle.
*/
const ConnRef & GetHandle() const
{
return m_Handle;
}
/* --------------------------------------------------------------------------------------------
* See whether the managed handle is valid.
*/
bool IsValid() const
{
return m_Handle;
}
/* --------------------------------------------------------------------------------------------
* See whether the managed connection handle was connected.
*/
bool IsConnected() const
{
return m_Handle && (m_Handle->mPtr != nullptr);
}
/* --------------------------------------------------------------------------------------------
* Return the number of active references to this connection handle.
*/
Uint32 GetRefCount() const
{
return m_Handle.Count();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the current error number.
*/
SQInteger GetErrNo() const
{
return static_cast< SQInteger >(mysql_errno(SQMOD_GET_CREATED(*this)->mPtr));
}
/* --------------------------------------------------------------------------------------------
* Retrieve the current error message.
*/
CSStr GetErrStr() const
{
return mysql_error(SQMOD_GET_CREATED(*this)->mPtr);
}
/* --------------------------------------------------------------------------------------------
* Retrieve the last received error number.
*/
SQInteger GetLastErrNo() const
{
return static_cast< SQInteger >(SQMOD_GET_VALID(*this)->mErrNo);
}
/* --------------------------------------------------------------------------------------------
* Retrieve the last received error message.
*/
const String & GetLastErrStr() const
{
return SQMOD_GET_VALID(*this)->mErrStr;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the connection port number.
*/
SQInteger GetPortNum() const
{
return static_cast< SQInteger >(SQMOD_GET_VALID(*this)->mPort);
}
/* --------------------------------------------------------------------------------------------
* Retrieve the connection host address.
*/
const String & GetHost() const
{
return SQMOD_GET_VALID(*this)->mHost;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the connection user name.
*/
const String & GetUser() const
{
return SQMOD_GET_VALID(*this)->mUser;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the connection password.
*/
const String & GetPass() const
{
return SQMOD_GET_VALID(*this)->mPass;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the selected database name.
*/
const String & GetName() const
{
return SQMOD_GET_VALID(*this)->mName;
}
/* --------------------------------------------------------------------------------------------
* Modify the selected database name.
*/
void SetName(CSStr name)
{
// Validate the specified name
if (!name)
{
STHROWF("Invalid MySQL database name");
}
// Attempt to select the database with the given name
else if (mysql_select_db(SQMOD_GET_CREATED(*this)->mPtr, name) != 0)
{
SQMOD_THROW_CURRENT(*m_Handle, "Cannot select MySQL database");
}
// Remember the database name
m_Handle->mName.assign(name);
}
/* --------------------------------------------------------------------------------------------
* Retrieve the connection socket.
*/
const String & GetSocket() const
{
return SQMOD_GET_VALID(*this)->mSocket;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the connection flags.
*/
SQInteger GetFlags() const
{
return static_cast< SQInteger >(SQMOD_GET_VALID(*this)->mFlags);
}
/* --------------------------------------------------------------------------------------------
* Retrieve the connection SSL key.
*/
const String & GetSSL_Key() const
{
return SQMOD_GET_VALID(*this)->mSSL_Key;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the connection SSL certificate.
*/
const String & GetSSL_Cert() const
{
return SQMOD_GET_VALID(*this)->mSSL_Cert;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the connection SSL certificate authority.
*/
const String & GetSSL_CA() const
{
return SQMOD_GET_VALID(*this)->mSSL_CA;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the connection SSL certificate authority path.
*/
const String & GetSSL_CA_Path() const
{
return SQMOD_GET_VALID(*this)->mSSL_CA_Path;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the connection SSL cipher.
*/
const String & GetSSL_Cipher() const
{
return SQMOD_GET_VALID(*this)->mSSL_Cipher;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the default character set for the managed connection.
*/
const String & GetCharset() const
{
return SQMOD_GET_VALID(*this)->mCharset;
}
/* --------------------------------------------------------------------------------------------
* Modify the default character set for the managed connection.
*/
void SetCharset(CSStr charset)
{
// Validate the specified string
if (!charset)
{
STHROWF("Invalid charset string");
}
// Attempt to Set the default character set for the managed connection
else if (mysql_set_character_set(SQMOD_GET_CREATED(*this)->mPtr, charset) != 0)
{
SQMOD_THROW_CURRENT(*m_Handle, "Cannot apply character set");
}
// Remember the character set
m_Handle->mCharset.assign(charset);
}
/* --------------------------------------------------------------------------------------------
* See whether auto-commit is enabled or not.
*/
bool GetAutoCommit() const
{
return SQMOD_GET_VALID((*this))->mAutoCommit;
}
/* --------------------------------------------------------------------------------------------
* Set whether auto-commit should be enabled or not.
*/
void SetAutoCommit(bool toggle)
{
// Attempt to toggle auto-commit if necessary
if (SQMOD_GET_CREATED(*this)->mAutoCommit != toggle &&
mysql_autocommit(m_Handle->mPtr, toggle) != 0)
{
SQMOD_THROW_CURRENT(*m_Handle, "Cannot toggle auto-commit");
}
else
{
m_Handle->mAutoCommit = toggle;
}
}
/* --------------------------------------------------------------------------------------------
* See whether the connection is in the middle of a transaction.
*/
bool GetInTransaction() const
{
return SQMOD_GET_VALID(*this)->mInTransaction;
}
/* --------------------------------------------------------------------------------------------
* Disconnect from the currently connected database.
*/
void Disconnect()
{
SQMOD_GET_CREATED(*this)->Disconnect();
}
/* --------------------------------------------------------------------------------------------
* Execute a query on the server.
*/
Object Execute(CSStr query)
{
return Object(SqTypeIdentity< ULongInt >{}, SqVM(), SQMOD_GET_CREATED(*this)->Execute(query));
}
/* --------------------------------------------------------------------------------------------
* Execute a query on the server.
*/
Object Insert(CSStr query);
/* --------------------------------------------------------------------------------------------
* Execute a query on the server.
*/
ResultSet Query(CSStr query);
/* --------------------------------------------------------------------------------------------
* Create a new statement on the managed connection.
*/
Statement GetStatement(CSStr query);
/* --------------------------------------------------------------------------------------------
* Create a new transaction on the managed connection.
*/
Transaction GetTransaction();
/* --------------------------------------------------------------------------------------------
* Escape unwanted characters from a given string.
*/
LightObj EscapeString(StackStrF & str);
/* --------------------------------------------------------------------------------------------
* Attempt to execute the specified query.
*/
static SQInteger ExecuteF(HSQUIRRELVM vm);
/* --------------------------------------------------------------------------------------------
* Attempt to execute the specified query.
*/
static SQInteger InsertF(HSQUIRRELVM vm);
/* --------------------------------------------------------------------------------------------
* Attempt to execute the specified query.
*/
static SQInteger QueryF(HSQUIRRELVM vm);
};
/* ------------------------------------------------------------------------------------------------
* Used to manage and interact with fields from result-sets.
*/
class Field
{
// --------------------------------------------------------------------------------------------
friend class ResultSet;
private:
// --------------------------------------------------------------------------------------------
Uint32 m_Index; // The actual index of the referenced field.
ResRef m_Handle; // Reference to the actual database result-set.
protected:
/* --------------------------------------------------------------------------------------------
* Validate the associated result-set handle and field index, and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void Validate(CCStr file, Int32 line) const;
#else
void Validate() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the associated result-set handle and field index, and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ValidateCreated(CCStr file, Int32 line) const;
#else
void ValidateCreated() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the associated result-set handle, field index and row, and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ValidateStepped(CCStr file, Int32 line) const;
#else
void ValidateStepped() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the associated result-set handle and field index, and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
const ResRef & GetValid(CCStr file, Int32 line) const;
#else
const ResRef & GetValid() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the associated result-set handle and field index, and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
const ResRef & GetCreated(CCStr file, Int32 line) const;
#else
const ResRef & GetCreated() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the associated result-set handle field index and row, and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
const ResRef & GetStepped(CCStr file, Int32 line) const;
#else
const ResRef & GetStepped() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the associated result-set handle and field index, and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ValidateField(Uint32 idx, CCStr file, Int32 line) const;
#else
void ValidateField(Uint32 idx) const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Modify the index to the specified value.
*/
void SetIndex(Int32 idx)
{
SQMOD_VALIDATE_FIELD(*this, idx);
// Assign the new index
m_Index = idx;
}
/* --------------------------------------------------------------------------------------------
* Modify the index to the specified value.
*/
void SetIndex(CSStr name)
{
SetIndex(SQMOD_GET_CREATED(*this)->GetFieldIndex(name));
}
/* --------------------------------------------------------------------------------------------
* Modify the index to the specified value.
*/
void SetIndex(const Object & field);
public:
// --------------------------------------------------------------------------------------------
static const Uint32 INVALID_INDEX; // Value that represents an invalid index.
/* --------------------------------------------------------------------------------------------
* Default constructor (null).
*/
Field()
: m_Index(INVALID_INDEX), m_Handle()
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* No field constructor.
*/
Field(const ResRef & rset)
: m_Index(INVALID_INDEX), m_Handle(rset)
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Index constructor.
*/
Field(const ResRef & rset, Uint32 idx)
: m_Index(idx), m_Handle(rset)
{
SQMOD_VALIDATE_FIELD(*this, m_Index);
}
/* --------------------------------------------------------------------------------------------
* Name constructor.
*/
Field(const ResRef & rset, CSStr name)
: m_Index(rset ? rset->GetFieldIndex(name) : -1), m_Handle(rset)
{
SQMOD_VALIDATE_FIELD(*this, m_Index);
}
/* --------------------------------------------------------------------------------------------
* Dynamic constructor.
*/
Field(const ResRef & rset, const Object & field)
: m_Index(INVALID_INDEX), m_Handle(rset)
{
if (!m_Handle)
{
STHROWF("Invalid MySQL result-set reference");
}
// Extract the index
SetIndex(field);
}
/* --------------------------------------------------------------------------------------------
* Copy constructor.
*/
Field(const Field & o) = default;
/* --------------------------------------------------------------------------------------------
* Move constructor.
*/
Field(Field && o) = default;
/* --------------------------------------------------------------------------------------------
* Copy assignment operator.
*/
Field & operator = (const Field & o) = default;
/* --------------------------------------------------------------------------------------------
* Move assignment operator.
*/
Field & operator = (Field && o) = default;
/* --------------------------------------------------------------------------------------------
* Perform an equality comparison between two result-set field indexes.
*/
bool operator == (const Field & o) const
{
return (m_Index == o.m_Index);
}
/* --------------------------------------------------------------------------------------------
* Perform an inequality comparison between two result-set field indexes.
*/
bool operator != (const Field & o) const
{
return (m_Index != o.m_Index);
}
/* --------------------------------------------------------------------------------------------
* Implicit conversion to boolean for use in boolean operations.
*/
operator bool () const
{
return (m_Handle && m_Handle->CheckFieldIndex(m_Index));
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to compare two instances of this type.
*/
Int32 Cmp(const Field & o) const
{
if (m_Index == o.m_Index)
{
return 0;
}
else if (m_Index > o.m_Index)
{
return 1;
}
else
{
return -1;
}
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to convert an instance of this type to a string.
*/
CSStr ToString() const
{
CSStr val = nullptr;
// Can we attempt to return the parameter name?
if (m_Handle && m_Handle->CheckFieldIndex(m_Index))
{
val = m_Handle->mFields[m_Index].name;
}
else
{
val = ToStrF(_SC("%d"), m_Index);
}
// Return the value if valid
return val ? val : _SC("");
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to retrieve the name from instances of this type.
*/
static SQInteger Typename(HSQUIRRELVM vm);
/* --------------------------------------------------------------------------------------------
* See whether the field is valid.
*/
bool IsValid() const
{
return m_Handle; // An invalid result-set means an invalid field
}
/* --------------------------------------------------------------------------------------------
* Return the number of active references to the associated result-set handle.
*/
Uint32 GetRefCount() const
{
return m_Handle.Count();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the referenced field index.
*/
SQInteger GetIndex() const
{
return ConvTo< SQInteger >::From(m_Index);
}
/* --------------------------------------------------------------------------------------------
* Retrieve the referenced database result-set.
*/
Object GetResultSet() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the referenced database connection.
*/
Object GetConnection() const;
/* --------------------------------------------------------------------------------------------
* Release the reference to the referenced database result-set and field index.
*/
void Release()
{
m_Handle.Reset();
m_Index = INVALID_INDEX;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a boolean value.
*/
bool GetBoolean() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a character.
*/
SQChar GetChar() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a native script integer.
*/
SQInteger GetInteger() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a native script floating point.
*/
SQFloat GetFloat() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a signed 8 bit integer value.
*/
SQInteger GetInt8() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as an unsigned 8 bit integer value.
*/
SQInteger GetUint8() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a signed 16 bit integer value.
*/
SQInteger GetInt16() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as an unsigned 16 bit integer value.
*/
SQInteger GetUint16() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a signed 32 bit integer value.
*/
SQInteger GetInt32() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as an unsigned 32 bit integer value.
*/
SQInteger GetUint32() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a signed 64 bit integer value.
*/
Object GetInt64() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as an unsigned 64 bit integer value.
*/
Object GetUint64() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a 32 bit floating point value.
*/
SQFloat GetFloat32() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a 64 bit floating point value.
*/
SQFloat GetFloat64() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a string value.
*/
Object GetString() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a memory buffer.
*/
Object GetBuffer() const;
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the referenced field as a memory blob.
*/
Object GetBlob() const;
};
/* ------------------------------------------------------------------------------------------------
* Allows management and interaction with a result set handle.
*/
class ResultSet
{
private:
// --------------------------------------------------------------------------------------------
ResRef m_Handle; // Reference to the actual database result-set.
protected:
/* --------------------------------------------------------------------------------------------
* Validate the managed statement handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void Validate(CCStr file, Int32 line) const;
#else
void Validate() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the managed statement handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ValidateCreated(CCStr file, Int32 line) const;
#else
void ValidateCreated() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the managed statement handle and row, and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ValidateStepped(CCStr file, Int32 line) const;
#else
void ValidateStepped() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the managed statement handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
const ResRef & GetValid(CCStr file, Int32 line) const;
#else
const ResRef & GetValid() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the managed statement handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
const ResRef & GetCreated(CCStr file, Int32 line) const;
#else
const ResRef & GetCreated() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the managed statement handle and row, and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
const ResRef & GetStepped(CCStr file, Int32 line) const;
#else
const ResRef & GetStepped() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the statement reference and field index, and throw an error if they're invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ValidateField(Int32 idx, CCStr file, Int32 line) const;
#else
void ValidateField(Int32 idx) const;
#endif // _DEBUG
public:
/* --------------------------------------------------------------------------------------------
* Default constructor.
*/
ResultSet()
: m_Handle()
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Connection constructor.
*/
explicit ResultSet(const ConnRef & conn)
: m_Handle(new ResHnd())
{
m_Handle->Create(conn);
}
/* --------------------------------------------------------------------------------------------
* Statement constructor.
*/
explicit ResultSet(const StmtRef & stmt)
: m_Handle(new ResHnd())
{
m_Handle->Create(stmt);
}
/* --------------------------------------------------------------------------------------------
* Handle constructor.
*/
explicit ResultSet(ResRef hnd)
: m_Handle(std::move(hnd))
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Copy constructor.
*/
ResultSet(const ResultSet & o) = default;
/* --------------------------------------------------------------------------------------------
* Move constructor.
*/
ResultSet(ResultSet && o) = default;
/* --------------------------------------------------------------------------------------------
* Destructor.
*/
~ResultSet() = default;
/* --------------------------------------------------------------------------------------------
* Copy assignment operator.
*/
ResultSet & operator = (const ResultSet & o) = default;
/* --------------------------------------------------------------------------------------------
* Move assignment operator.
*/
ResultSet & operator = (ResultSet && o) = default;
/* --------------------------------------------------------------------------------------------
* Used by the script engine to compare two instances of this type.
*/
Int32 Cmp(const ResultSet & o) const
{
if (m_Handle.Get() == o.m_Handle.Get())
{
return 0;
}
else if (m_Handle.Get() > o.m_Handle.Get())
{
return 1;
}
else
{
return -1;
}
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to convert an instance of this type to a string.
*/
CSStr ToString() const
{
// Do we have a valid handle?
if (m_Handle)
{
ToStrF("%u", m_Handle->mFieldCount);
}
// Default to a negative value
return _SC("-1");
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to retrieve the name from instances of this type.
*/
static SQInteger Typename(HSQUIRRELVM vm);
/* --------------------------------------------------------------------------------------------
* See whether the managed handle is valid.
*/
bool IsValid() const
{
return m_Handle;
}
/* --------------------------------------------------------------------------------------------
* Returns an array with all the field names available in the managed result set.
*/
Array GetFieldNames() const;
/* --------------------------------------------------------------------------------------------
* Returns an array with wrapper instances for all the field available in the managed result set.
*/
Array GetFieldsArray() const;
/* --------------------------------------------------------------------------------------------
* Returns an array with wrapper instances for the specified fields in the managed result set.
*/
Array FetchFieldsArray(Array & fields) const;
/* --------------------------------------------------------------------------------------------
* Returns a table with wrapper instances for all the field available in the managed result set.
*/
Table GetFieldsTable() const;
/* --------------------------------------------------------------------------------------------
* Returns a table with wrapper instances for all the specified fields in the managed result set.
*/
Table FetchFieldsTable(Array & fields) const;
/* --------------------------------------------------------------------------------------------
* Returns the current position of the row cursor for the last Next().
*/
Object RowIndex() const
{
return Object(SqTypeIdentity< ULongInt >{}, SqVM(), SQMOD_GET_CREATED(*this)->RowIndex());
}
/* --------------------------------------------------------------------------------------------
* Returns the number of rows in the result set.
*/
Object RowCount() const
{
return Object(SqTypeIdentity< ULongInt >{}, SqVM(), SQMOD_GET_CREATED(*this)->RowCount());
}
/* --------------------------------------------------------------------------------------------
* Retrieve the next row from the query.
*/
bool Next() const
{
return SQMOD_GET_CREATED(*this)->Next();
}
/* --------------------------------------------------------------------------------------------
* Seeks to an arbitrary row in a query result set.
*/
bool SetRowIndex(SQInteger index) const
{
return SQMOD_GET_CREATED(*this)->SetRowIndex(ConvTo< Uint64 >::From(index));
}
/* --------------------------------------------------------------------------------------------
* Seeks to an arbitrary row in a query result set.
*/
bool SetLongRowIndex(const ULongInt & index) const
{
return SQMOD_GET_CREATED(*this)->SetRowIndex(index.GetNum());
}
/* --------------------------------------------------------------------------------------------
* Retrieve the field with the specified name or index.
*/
Field GetField(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field);
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a boolean value.
*/
bool GetBoolean(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetBoolean();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a character.
*/
SQChar GetChar(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetChar();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a native script integer.
*/
SQInteger GetInteger(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetInteger();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a native script floating point.
*/
SQFloat GetFloat(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetFloat();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a signed 8 bit integer value.
*/
SQInteger GetInt8(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetInt8();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as an unsigned 8 bit integer value.
*/
SQInteger GetUint8(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetUint8();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a signed 16 bit integer value.
*/
SQInteger GetInt16(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetInt16();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as an unsigned 16 bit integer value.
*/
SQInteger GetUint16(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetUint16();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a signed 32 bit integer value.
*/
SQInteger GetInt32(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetInt32();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as an unsigned 32 bit integer value.
*/
SQInteger GetUint32(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetUint32();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a signed 64 bit integer value.
*/
Object GetInt64(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetInt64();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as an unsigned 64 bit integer value.
*/
Object GetUint64(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetUint64();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a 32 bit floating point value.
*/
SQFloat GetFloat32(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetFloat32();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a 64 bit floating point value.
*/
SQFloat GetFloat64(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetFloat64();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a string value.
*/
Object GetString(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetString();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a memory buffer.
*/
Object GetBuffer(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetBuffer();
}
/* --------------------------------------------------------------------------------------------
* Retrieve the value inside the specified field as a memory blob.
*/
Object GetBlob(const Object & field) const
{
return Field(SQMOD_GET_STEPPED(*this), field).GetBlob();
}
};
/* ------------------------------------------------------------------------------------------------
* Allows management and interaction with a statement handle.
*/
class Statement
{
private:
// --------------------------------------------------------------------------------------------
StmtRef m_Handle; // Reference to the actual database statement.
protected:
/* --------------------------------------------------------------------------------------------
* Validate the managed statement handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void Validate(CCStr file, Int32 line) const;
#else
void Validate() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the managed statement handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ValidateCreated(CCStr file, Int32 line) const;
#else
void ValidateCreated() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the managed statement handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
const StmtRef & GetValid(CCStr file, Int32 line) const;
#else
const StmtRef & GetValid() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the managed statement handle and throw an error if invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
const StmtRef & GetCreated(CCStr file, Int32 line) const;
#else
const StmtRef & GetCreated() const;
#endif // _DEBUG
/* --------------------------------------------------------------------------------------------
* Validate the statement reference and parameter index, and throw an error if they're invalid.
*/
#if defined(_DEBUG) || defined(SQMOD_EXCEPTLOC)
void ValidateParam(Int32 idx, CCStr file, Int32 line) const;
#else
void ValidateParam(Int32 idx) const;
#endif // _DEBUG
public:
/* --------------------------------------------------------------------------------------------
* Default constructor.
*/
Statement()
: m_Handle()
{
/* ... */
}
/* --------------------------------------------------------------------------------------------
* Construct a statement under the specified connection using the specified string.
*/
Statement(const ConnRef & connection, CSStr query)
: m_Handle(new StmtHnd())
{
m_Handle->Create(connection, query);
}
/* --------------------------------------------------------------------------------------------
* Construct a statement under the specified connection using the specified string.
*/
Statement(const Connection & connection, CSStr query);
/* --------------------------------------------------------------------------------------------
* Copy constructor.
*/
Statement(const Statement & o) = default;
/* --------------------------------------------------------------------------------------------
* Move constructor.
*/
Statement(Statement && o) = default;
/* --------------------------------------------------------------------------------------------
* Copy assignment operator.
*/
Statement & operator = (const Statement & o) = default;
/* --------------------------------------------------------------------------------------------
* Move assignment operator.
*/
Statement & operator = (Statement && o) = default;
/* --------------------------------------------------------------------------------------------
* Used by the script engine to compare two instances of this type.
*/
Int32 Cmp(const Statement & o) const
{
if (m_Handle.Get() == o.m_Handle.Get())
{
return 0;
}
else if (m_Handle.Get() > o.m_Handle.Get())
{
return 1;
}
else
{
return -1;
}
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to convert an instance of this type to a string.
*/
const String & ToString() const
{
// Do we have a valid handle?
if (m_Handle)
{
m_Handle->mQuery;
}
// Default to an empty string
return NullString();
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to retrieve the name from instances of this type.
*/
static SQInteger Typename(HSQUIRRELVM vm);
/* --------------------------------------------------------------------------------------------
* Retrieve the associated connection handle.
*/
const StmtRef & GetHandle() const
{
return m_Handle;
}
/* --------------------------------------------------------------------------------------------
* See whether the managed handle is valid.
*/
bool IsValid() const
{
return m_Handle;
}
/* --------------------------------------------------------------------------------------------
* Retrieve the currently associated statement connection.
*/
Connection GetConnection() const;
/* --------------------------------------------------------------------------------------------
* Modify the currently associated statement connection.
*/
void SetConnection(const Connection & conn);
/* --------------------------------------------------------------------------------------------
* Execute the statement.
*/
Int32 Execute();
/* --------------------------------------------------------------------------------------------
* Execute the statement.
*/
Uint32 Insert();
/* --------------------------------------------------------------------------------------------
* Execute the statement.
*/
ResultSet Query();
/* --------------------------------------------------------------------------------------------
* Assign a signed 8bit integer to a parameter.
*/
void SetInt8(Uint32 idx, SQInteger val) const;
/* --------------------------------------------------------------------------------------------
* Assign an unsigned 8bit integer to a parameter.
*/
void SetUint8(Uint32 idx, SQInteger val) const;
/* --------------------------------------------------------------------------------------------
* Assign a signed 16bit integer to a parameter.
*/
void SetInt16(Uint32 idx, SQInteger val) const;
/* --------------------------------------------------------------------------------------------
* Assign an unsigned 16bit integer to a parameter.
*/
void SetUint16(Uint32 idx, SQInteger val) const;
/* --------------------------------------------------------------------------------------------
* Assign a signed 32bit integer to a parameter.
*/
void SetInt32(Uint32 idx, SQInteger val) const;
/* --------------------------------------------------------------------------------------------
* Assign an unsigned 32bit integer to a parameter.
*/
void SetUint32(Uint32 idx, SQInteger val) const;
/* --------------------------------------------------------------------------------------------
* Assign a signed 64bit integer to a parameter.
*/
void SetInt64(Uint32 idx, SQInteger val) const;
/* --------------------------------------------------------------------------------------------
* Assign an unsigned 64bit integer to a parameter.
*/
void SetUint64(Uint32 idx, SQInteger val) const;
/* --------------------------------------------------------------------------------------------
* Assign a signed long integer to a parameter.
*/
void SetSLongInt(Uint32 idx, const SLongInt & val) const;
/* --------------------------------------------------------------------------------------------
* Assign an unsigned long integer to a parameter.
*/
void SetULongInt(Uint32 idx, const ULongInt & val) const;
/* --------------------------------------------------------------------------------------------
* Assign a native integer to a parameter.
*/
void SetInteger(Uint32 idx, SQInteger val) const;
/* --------------------------------------------------------------------------------------------
* Assign a 32bit floating point to a parameter.
*/
void SetFloat32(Uint32 idx, SQFloat val) const;
/* --------------------------------------------------------------------------------------------
* Assign a 64bit floating point to a parameter.
*/
void SetFloat64(Uint32 idx, SQFloat val) const;
/* --------------------------------------------------------------------------------------------
* Assign a native float to a parameter.
*/
void SetFloat(Uint32 idx, SQFloat val) const;
/* --------------------------------------------------------------------------------------------
* Assign a boolean to a parameter.
*/
void SetBoolean(Uint32 idx, bool val) const;
/* --------------------------------------------------------------------------------------------
* Assign a date to a parameter.
*/
void SetDate(Uint32 idx, const Date & val) const;
/* --------------------------------------------------------------------------------------------
* Assign a time to a parameter.
*/
void SetTime(Uint32 idx, const Time & val) const;
/* --------------------------------------------------------------------------------------------
* Assign a date and time to a parameter.
*/
void SetDatetime(Uint32 idx, const Datetime & val) const;
/* --------------------------------------------------------------------------------------------
* Assign a string to a parameter.
*/
void SetString(Uint32 idx, CSStr val) const;
/* --------------------------------------------------------------------------------------------
* Assign an enumeration to a parameter.
*/
void SetEnum(Uint32 idx, CSStr val) const;
/* --------------------------------------------------------------------------------------------
* Assign an enumeration to a parameter.
*/
void SetSet(Uint32 idx, CSStr val) const;
/* --------------------------------------------------------------------------------------------
* Assign a blob to a parameter.
*/
void SetBlob(Uint32 idx, Object & val) const;
/* --------------------------------------------------------------------------------------------
* Assign a buffer to a paramete.
*/
void SetData(Uint32 idx, Object & val) const;
/* --------------------------------------------------------------------------------------------
* Assign a null to a parameter.
*/
void SetNull(Uint32 idx) const;
};
/* ------------------------------------------------------------------------------------------------
* ...
*/
class Parameter
{
public:
/* --------------------------------------------------------------------------------------------
* Default constructor.
*/
Parameter();
/* --------------------------------------------------------------------------------------------
* Copy constructor.
*/
Parameter(const Parameter & o);
/* --------------------------------------------------------------------------------------------
* Move constructor.
*/
Parameter(Parameter && o);
/* --------------------------------------------------------------------------------------------
* Destructor.
*/
~Parameter();
/* --------------------------------------------------------------------------------------------
* Copy assignment operator.
*/
Parameter & operator = (const Parameter & o);
/* --------------------------------------------------------------------------------------------
* Move assignment operator.
*/
Parameter & operator = (Parameter && o);
};
/* ------------------------------------------------------------------------------------------------
* ...
*/
class Transaction
{
public:
/* --------------------------------------------------------------------------------------------
* Default constructor.
*/
Transaction()
{
}
/* --------------------------------------------------------------------------------------------
* Copy constructor. (disabled)
*/
Transaction(const Transaction & o) = delete;
/* --------------------------------------------------------------------------------------------
* Move constructor. (disabled)
*/
Transaction(Transaction && o) = default;
/* --------------------------------------------------------------------------------------------
* Destructor.
*/
~Transaction()
{
}
/* --------------------------------------------------------------------------------------------
* Copy assignment operator. (disabled)
*/
Transaction & operator = (const Transaction & o) = delete;
/* --------------------------------------------------------------------------------------------
* Move assignment operator. (disabled)
*/
Transaction & operator = (Transaction && o) = default;
};
} // Namespace:: SqMod
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