mirror of
https://github.com/VCMP-SqMod/SqMod.git
synced 2024-11-08 08:47:17 +01:00
4c66cfa49d
Also enabled the latest C++ revision in the project. Various other fixes and improvements.
960 lines
34 KiB
C++
960 lines
34 KiB
C++
// ------------------------------------------------------------------------------------------------
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#include "Statement.hpp"
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#include "Connection.hpp"
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#include "Column.hpp"
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#include "Module.hpp"
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// ------------------------------------------------------------------------------------------------
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#include <sqrat.h>
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// ------------------------------------------------------------------------------------------------
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namespace SqMod {
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// ------------------------------------------------------------------------------------------------
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CSStr Statement::s_BadParamI = "Unable to bind [%s] parameter at (%d) because [%s]";
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CSStr Statement::s_BadParamS = "Unable to bind [%s] parameter at (%s:%d) because [%s]";
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// ------------------------------------------------------------------------------------------------
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SQInteger Statement::Typename(HSQUIRRELVM vm)
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{
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static SQChar name[] = _SC("SqSQLiteStatement");
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sq_pushstring(vm, name, sizeof(name));
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return 1;
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::Validate() const
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{
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// Is the handle valid?
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if (!m_Handle)
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SqThrowF("Invalid SQLite statement reference");
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::ValidateIndex(Int32 idx) const
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{
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// Is the handle valid?
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if (!m_Handle)
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SqThrowF("Invalid SQLite statement reference");
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// Is the specified index in range?
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else if (!m_Handle->CheckIndex(idx))
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SqThrowF("Column index is out of range: %d", idx);
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::ValidateRow() const
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{
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// Is the handle valid?
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if (!m_Handle)
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SqThrowF("Invalid SQLite statement reference");
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// Do we have any rows available?
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else if (!m_Handle->mGood)
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SqThrowF("No row available");
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}
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// ------------------------------------------------------------------------------------------------
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Statement::Statement()
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: m_Handle()
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{
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/* ... */
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}
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// ------------------------------------------------------------------------------------------------
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Statement::Statement(const ConnHnd & connection, CSStr query)
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: m_Handle(connection)
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{
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// Validate the statement handle
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if (m_Handle.m_Hnd)
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m_Handle->Create(query);
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// We just failed to obtain a valid handle
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else
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SqThrowF("Unable to create the statement reference");
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}
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// ------------------------------------------------------------------------------------------------
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Statement::Statement(const Connection & connection, CSStr query)
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: m_Handle(connection.GetHandle())
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{
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// Validate the statement handle
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if (m_Handle.m_Hnd)
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m_Handle->Create(query);
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// We just failed to obtain a valid handle
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else
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SqThrowF("Unable to create the statement reference");
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}
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// ------------------------------------------------------------------------------------------------
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Object Statement::GetConnection() const
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{
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// Validate the handle
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Validate();
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// Return the requested information
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return Object(new Connection(m_Handle->mConn));
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::Reset()
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{
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// Validate the handle
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Validate();
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// Specify that we don't have a row available and we haven't finished stepping
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m_Handle->mGood = false;
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m_Handle->mDone = false;
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// Attempt to reset the statement to it's initial state
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m_Handle = sqlite3_reset(m_Handle);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF("Unable to reset statement [%s]", m_Handle.ErrStr());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::Clear()
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{
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// Validate the handle
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Validate();
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// Specify that we don't have a row available and we haven't finished stepping
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m_Handle->mGood = false;
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m_Handle->mDone = false;
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// Attempt to clear the statement
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m_Handle = sqlite3_clear_bindings(m_Handle);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF("Unable to clear statement [%s]", m_Handle.ErrStr());
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}
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// ------------------------------------------------------------------------------------------------
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Int32 Statement::Exec()
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{
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// Validate the handle
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Validate();
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// Did we reset first?
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if (m_Handle->mDone)
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SqThrowF("Executed without resetting first");
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// Attempt to step the statement
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m_Handle = sqlite3_step(m_Handle);
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// Have we finished stepping?
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if (m_Handle == SQLITE_DONE)
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{
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// Specify that we don't have row available and we finished stepping
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m_Handle->mGood = false;
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m_Handle->mDone = true;
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// Return the changes made by this statement
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return sqlite3_changes(m_Handle->mConn);
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}
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// Specify that we don't have any row and we haven't finished stepping
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m_Handle->mGood = false;
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m_Handle->mDone = false;
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// Inspect the result
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switch (m_Handle->mStatus)
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{
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// We don't expect any rows to be returned in this case!
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case SQLITE_ROW: SqThrowF("Results were found");
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case SQLITE_BUSY: SqThrowF("Database was busy");
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case SQLITE_ERROR: SqThrowF("Runtime error occurred");
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case SQLITE_MISUSE: SqThrowF("Statement misuse");
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default: SqThrowF("Unknown failure");
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}
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// Operation failed (shouldn't reach this point!)
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return -1;
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}
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// ------------------------------------------------------------------------------------------------
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bool Statement::Step()
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{
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// Validate the handle
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Validate();
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// Did we reset first?
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if (m_Handle->mDone)
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SqThrowF("Stepped without resetting first");
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// Attempt to step the statement
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m_Handle = sqlite3_step(m_Handle);
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// Do we have a row available?
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if (m_Handle == SQLITE_ROW)
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// Specify that we have a row available
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return (m_Handle->mGood = true);
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// Have we finished stepping?
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else if (m_Handle == SQLITE_DONE)
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{
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// Specify that we finished stepping
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m_Handle->mDone = true;
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// Specify that we don't have a row available
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return (m_Handle->mGood = false);
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}
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// Specify that we don't have any row and we haven't finished stepping
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m_Handle->mGood = false;
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m_Handle->mDone = false;
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// Inspect the result
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switch (m_Handle->mStatus)
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{
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case SQLITE_BUSY: SqThrowF("Database was busy");
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case SQLITE_ERROR: SqThrowF("Runtime error occurred");
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case SQLITE_MISUSE: SqThrowF("Statement misuse");
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default: SqThrowF("Unknown failure");
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}
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// Operation failed (shouldn't reach this point!)
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return false;
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::IndexBindA(Int32 idx, Array & arr)
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{
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// Validate the handle
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Validate();
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// Know when to stop trying to bind values
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const Int32 max = sqlite3_bind_parameter_count(m_Handle);
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// Make sure that we are at least in bounds
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if (idx >= max)
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SqThrowF("Parameter index out of range: %d >= %d", idx, max);
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// Should we clear onward parameters?
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else if (arr.Length() <= 0)
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{
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// Clear all parameters after the specified index
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for (Int32 idx = arr.Length(); idx < max; ++idx)
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sqlite3_bind_null(m_Handle, idx);
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}
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// Attempt to retrieve and bind the specified values
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else
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{
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// Allocated memory for the specified amount of values
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std::vector< Object > values(arr.Length());
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// Attempt to retrieve the specified values
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arr.GetArray< Object >(&values[0], values.size());
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// Obtain the start of the object list
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std::vector< Object >::iterator itr = values.begin();
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// Attempt to bind each specified element individually
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for (; itr != values.end() && idx < max; ++itr)
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IndexBind(idx++, *itr);
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}
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::IndexBindI(Int32 idx, Int32 value)
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{
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// Validate the handle
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Validate();
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_int(m_Handle, idx, value);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamI, "int", idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::IndexBindL(Int32 idx, Object & value)
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{
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// Validate the handle
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Validate();
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// Obtain the initial stack size
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const StackGuard sg(_SqVM);
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// Push the specified object onto the stack
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Var< Object & >::push(_SqVM, value);
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// The resulted long integer value
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Int64 longint = 0;
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// Attempt to get the numeric value inside the specified object
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if (SQ_FAILED(_SqMod->GetSLongValue(_SqVM, -1, &longint)))
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SqThrowF("Invalid long integer specified");
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_int(m_Handle, idx, longint);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamI, "long", idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::IndexBindV(Int32 idx, SQInteger value)
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{
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// Validate the handle
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Validate();
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// Attempt to bind the specified value
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#ifdef _SQ64
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m_Handle = sqlite3_bind_int64(m_Handle, idx, value);
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#else
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m_Handle = sqlite3_bind_int(m_Handle, idx, value);
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#endif // _SQ64
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamI, "value", idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::IndexBindF(Int32 idx, SQFloat value)
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{
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// Validate the handle
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Validate();
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_double(m_Handle, idx, value);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamI, "float", idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::IndexBindS(Int32 idx, CSStr value)
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{
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// Validate the handle
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Validate();
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_text(m_Handle, idx, value, -1, SQLITE_TRANSIENT);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamI, "string", idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::IndexBindB(Int32 idx, bool value)
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{
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// Validate the handle
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Validate();
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_int(m_Handle, idx, value);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamI, "boolean", idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::IndexBindN(Int32 idx)
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{
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// Validate the handle
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Validate();
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_null(m_Handle, idx);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamI, "null", idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::NameBindT(Table & tbl)
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{
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// Validate the handle
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Validate();
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// Should we clear the all the parameters?
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if (tbl.GetSize() <= 0)
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Clear();
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// Attempt to assign the specified parameter values
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else
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{
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// Obtain a table iterator
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Table::iterator itr;
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// Used to retrieve element values
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Object val;
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// Process each element until _next returns null
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while (tbl.Next(itr))
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{
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// Get the value object
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val = Object(itr.getValue());
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// Bind it to the associated key
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NameBind(itr.getName(), val);
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}
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}
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::NameBindI(CSStr name, Int32 value)
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{
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// Validate the handle
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Validate();
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// Attempt to obtain the index of the specified parameter name
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const Int32 idx = sqlite3_bind_parameter_index(m_Handle, name);
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// Validate the obtained index
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if (!idx)
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SqThrowF("Unknown parameter named (%s)", name);
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_int(m_Handle, idx, value);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamS, "int", name, idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::NameBindL(CSStr name, Object & value)
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{
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// Validate the handle
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Validate();
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// Attempt to obtain the index of the specified parameter name
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const Int32 idx = sqlite3_bind_parameter_index(m_Handle, name);
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// Validate the obtained index
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if (!idx)
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SqThrowF("Unknown parameter named (%s)", name);
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// Obtain the initial stack size
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const StackGuard sg(_SqVM);
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// Push the specified object onto the stack
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Var< Object & >::push(_SqVM, value);
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// The resulted long integer value
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Uint64 longint = 0;
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// Attempt to get the numeric value inside the specified object
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if (SQ_FAILED(_SqMod->GetULongValue(_SqVM, -1, &longint)))
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SqThrowF("Invalid long integer specified");
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_int(m_Handle, idx, longint);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamS, "long", name, idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::NameBindV(CSStr name, SQInteger value)
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{
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// Validate the handle
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Validate();
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// Attempt to obtain the index of the specified parameter name
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const Int32 idx = sqlite3_bind_parameter_index(m_Handle, name);
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// Validate the obtained index
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if (!idx)
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SqThrowF("Unknown parameter named (%s)", name);
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// Attempt to bind the specified value
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#ifdef _SQ64
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m_Handle = sqlite3_bind_int64(m_Handle, idx, value);
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#else
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m_Handle = sqlite3_bind_int(m_Handle, idx, value);
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#endif // _SQ64
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamS, "value", name, idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::NameBindF(CSStr name, SQFloat value)
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{
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// Validate the handle
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Validate();
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// Attempt to obtain the index of the specified parameter name
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const Int32 idx = sqlite3_bind_parameter_index(m_Handle, name);
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// Validate the obtained index
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if (!idx)
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SqThrowF("Unknown parameter named (%s)", name);
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_double(m_Handle, idx, value);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamS, "float", name, idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::NameBindS(CSStr name, CSStr value)
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{
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// Validate the handle
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Validate();
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// Attempt to obtain the index of the specified parameter name
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const Int32 idx = sqlite3_bind_parameter_index(m_Handle, name);
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// Validate the obtained index
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if (!idx)
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SqThrowF("Unknown parameter named (%s)", name);
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_text(m_Handle, idx, value, -1, SQLITE_TRANSIENT);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamS, "string", name, idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::NameBindB(CSStr name, bool value)
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{
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// Validate the handle
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Validate();
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// Attempt to obtain the index of the specified parameter name
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const Int32 idx = sqlite3_bind_parameter_index(m_Handle, name);
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// Validate the obtained index
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if (!idx)
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SqThrowF("Unknown parameter named (%s)", name);
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_int(m_Handle, idx, value);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamS, "boolean", name, idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::NameBindN(CSStr name)
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{
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// Validate the handle
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Validate();
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// Attempt to obtain the index of the specified parameter name
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const Int32 idx = sqlite3_bind_parameter_index(m_Handle, name);
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// Validate the obtained index
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if (!idx)
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SqThrowF("Unknown parameter named (%s)", name);
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// Attempt to bind the specified value
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m_Handle = sqlite3_bind_null(m_Handle, idx);
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// Validate the result
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if (m_Handle != SQLITE_OK)
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SqThrowF(s_BadParamS, "null", name, idx, m_Handle.ErrMsg());
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}
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// ------------------------------------------------------------------------------------------------
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void Statement::IndexBind(Int32 idx, Object & value)
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{
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// Validate the handle
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Validate();
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// Attempt to identify the specified type
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switch (value.GetType())
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{
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// Is this an integer?
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case OT_INTEGER:
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#ifdef _SQ64
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m_Handle = sqlite3_bind_int64(m_Handle, idx, value.Cast< SQInteger >());
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#else
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m_Handle = sqlite3_bind_int(m_Handle, idx, value.Cast< SQInteger >());
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#endif
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break;
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// Is this a float?
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case OT_FLOAT:
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m_Handle = sqlite3_bind_double(m_Handle, idx, value.Cast< SQFloat >());
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break;
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// Is this a boolean?
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case OT_BOOL:
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m_Handle = sqlite3_bind_int(m_Handle, idx, value.Cast< bool >());
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break;
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// Is this a string?
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case OT_STRING:
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{
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CSStr str = value.Cast< CSStr >();
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m_Handle = sqlite3_bind_text(m_Handle, idx, str, -1, SQLITE_TRANSIENT);
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} break;
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// Is this a null value?
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case OT_NULL:
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m_Handle = sqlite3_bind_null(m_Handle, idx);
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break;
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// Unsupported type
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default:
|
|
SqThrowF("Attempting to bind unknown value type (%d)", idx);
|
|
}
|
|
// Validate the result
|
|
if (m_Handle != SQLITE_OK)
|
|
SqThrowF(s_BadParamI, "auto", idx, m_Handle.ErrMsg());
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
void Statement::NameBind(CSStr name, Object & value)
|
|
{
|
|
// Validate the handle
|
|
Validate();
|
|
// Attempt to obtain the index of the specified parameter name
|
|
const Int32 idx = sqlite3_bind_parameter_index(m_Handle, name);
|
|
// Validate the obtained index
|
|
if (!idx)
|
|
SqThrowF("Unknown parameter named (%s)", name);
|
|
// Attempt to identify the specified type
|
|
switch (value.GetType())
|
|
{
|
|
// Is this an integer?
|
|
case OT_INTEGER:
|
|
#ifdef _SQ64
|
|
m_Handle = sqlite3_bind_int64(m_Handle, idx, value.Cast< SQInteger >());
|
|
#else
|
|
m_Handle = sqlite3_bind_int(m_Handle, idx, value.Cast< SQInteger >());
|
|
#endif
|
|
break;
|
|
// Is this a floating point?
|
|
case OT_FLOAT:
|
|
m_Handle = sqlite3_bind_double(m_Handle, idx, value.Cast< SQFloat >());
|
|
break;
|
|
// Is this a boolean?
|
|
case OT_BOOL:
|
|
m_Handle = sqlite3_bind_int(m_Handle, idx, value.Cast< bool >());
|
|
break;
|
|
// Is this a string?
|
|
case OT_STRING:
|
|
{
|
|
CSStr str = value.Cast< CSStr >();
|
|
m_Handle = sqlite3_bind_text(m_Handle, idx, str, -1, SQLITE_TRANSIENT);
|
|
} break;
|
|
// Is this a null value?
|
|
case OT_NULL:
|
|
m_Handle = sqlite3_bind_null(m_Handle, idx);
|
|
break;
|
|
// Unsupported type
|
|
default:
|
|
SqThrowF("Attempting to bind unknown value type (%s:%d)", name, idx);
|
|
}
|
|
// Validate the result
|
|
if (m_Handle != SQLITE_OK)
|
|
SqThrowF(s_BadParamS, "auto", name, idx, m_Handle.ErrMsg());
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Object Statement::FetchColumnIndex(Int32 idx) const
|
|
{
|
|
// Validate the handle and row
|
|
ValidateRow();
|
|
// Is the specified index valid?
|
|
if (!m_Handle->CheckIndex(idx))
|
|
SqThrowF("Column index is out of range: %d", idx);
|
|
// Obtain the initial stack size
|
|
const StackGuard sg(_SqVM);
|
|
// Identify which type of value must be pushed on the stack
|
|
switch (sqlite3_column_type(m_Handle, idx))
|
|
{
|
|
// Is this a null value?
|
|
case SQLITE_NULL:
|
|
sq_pushnull(_SqVM);
|
|
break;
|
|
// Is this an integer?
|
|
case SQLITE_INTEGER:
|
|
#ifdef _SQ64
|
|
sq_pushinteger(_SqVM, sqlite3_column_int64(m_Handle, idx));
|
|
#else
|
|
sq_pushinteger(_SqVM, sqlite3_column_int(m_Handle, idx));
|
|
#endif
|
|
break;
|
|
// Is this a floating point?
|
|
case SQLITE_FLOAT:
|
|
sq_pushfloat(_SqVM, sqlite3_column_double(m_Handle, idx));
|
|
break;
|
|
// Is this a string?
|
|
case SQLITE_TEXT:
|
|
sq_pushstring(_SqVM, (CSStr)sqlite3_column_text(m_Handle, idx),
|
|
sqlite3_column_bytes(m_Handle, idx));
|
|
break;
|
|
// Is this raw data?
|
|
case SQLITE_BLOB:
|
|
{
|
|
// Obtain the size of the data
|
|
const Int32 sz = sqlite3_column_bytes(m_Handle, idx);
|
|
// Allocate a blob of the same size
|
|
SQUserPointer p = sqstd_createblob(_SqVM, sz);
|
|
// Obtain a pointer to the data
|
|
const void * b = sqlite3_column_blob(m_Handle, idx);
|
|
// Could the memory blob be allocated?
|
|
if (!p)
|
|
SqThrowF("Unable to allocate space for column blob value");
|
|
// Is there any data to read?
|
|
else if (!b)
|
|
{
|
|
// Pop the memory blob from the stack
|
|
sq_pop(_SqVM, 1);
|
|
// Push a null value instead
|
|
sq_pushnull(_SqVM);
|
|
}
|
|
// Copy the data into the memory blob
|
|
else
|
|
memcpy(p, b, sz);
|
|
} break;
|
|
// Unknown type
|
|
default:
|
|
SqThrowF("Unknown value to fetch at index: %d", idx);
|
|
}
|
|
// Obtain the object with the value from the stack and return it
|
|
return Var< Object >(_SqVM, -1).value;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Object Statement::FetchColumnName(CSStr name) const
|
|
{
|
|
// Validate the handle and row
|
|
ValidateRow();
|
|
// Return the requested information
|
|
return FetchColumnIndex(m_Handle->GetColumnIndex(name));
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Array Statement::FetchArray() const
|
|
{
|
|
// Validate the handle
|
|
Validate();
|
|
// Return the requested information
|
|
return FetchArray(0, m_Handle->mColumns-1);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Array Statement::FetchArray(Int32 min) const
|
|
{
|
|
// Validate the handle
|
|
Validate();
|
|
// Return the requested information
|
|
return FetchArray(min, m_Handle->mColumns-1);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Array Statement::FetchArray(Int32 min, Int32 max) const
|
|
{
|
|
// Validate the handle
|
|
ValidateRow();
|
|
// Was there anything selected?
|
|
if (min == max)
|
|
return Array(); // Nothing to retrieve
|
|
// Is the minimum actually the minimum?
|
|
else if (min > max)
|
|
SqThrowF("Minimum is higher than maximum");
|
|
// Is the minimum in range>
|
|
else if (!m_Handle->CheckIndex(min))
|
|
SqThrowF("Minimum is out of range");
|
|
// Is the maximum in range?
|
|
else if (!m_Handle->CheckIndex(max))
|
|
SqThrowF("Maximum is out of range");
|
|
// Allocate an array large enough to hold the values from selected columns
|
|
Array arr(_SqVM, max-min);
|
|
// Process the range of selected columns
|
|
for (Int32 elem = 0, idx = min; idx < max; ++elem, ++idx)
|
|
{
|
|
// Identify the type of value that must be assigned
|
|
switch (sqlite3_column_type(m_Handle, idx))
|
|
{
|
|
// Is this a null value?
|
|
case SQLITE_NULL:
|
|
// Array elements are initialized as null by default so we just leave it like that
|
|
break;
|
|
// Is this an integer?
|
|
case SQLITE_INTEGER:
|
|
#ifdef _SQ64
|
|
arr.SetValue(elem, sqlite3_column_int64(m_Handle, idx));
|
|
#else
|
|
arr.SetValue(elem, sqlite3_column_int(m_Handle, idx));
|
|
#endif
|
|
break;
|
|
// Is this a floating point?
|
|
case SQLITE_FLOAT:
|
|
arr.SetValue(elem, sqlite3_column_double(m_Handle, idx));
|
|
break;
|
|
// Is this a string?
|
|
case SQLITE_TEXT:
|
|
arr.SetValue(elem, (CCStr)(sqlite3_column_text(m_Handle, idx)));
|
|
break;
|
|
// Is this raw data?
|
|
case SQLITE_BLOB:
|
|
{
|
|
// Obtain the initial stack size
|
|
const StackGuard sg(_SqVM);
|
|
// Obtain the size of the data
|
|
const Int32 sz = sqlite3_column_bytes(m_Handle, idx);
|
|
// Allocate a blob of the same size
|
|
SQUserPointer p = sqstd_createblob(_SqVM, sz);
|
|
// Obtain a pointer to the data
|
|
const void * b = sqlite3_column_blob(m_Handle, idx);
|
|
// Could the memory blob be allocated?
|
|
if (!p)
|
|
SqThrowF("Unable to allocate space for column blob value");
|
|
// Is there any data to read?
|
|
else if (!b)
|
|
{
|
|
// Pop the memory blob from the stack
|
|
sq_pop(_SqVM, 1);
|
|
// Push a null value instead
|
|
sq_pushnull(_SqVM);
|
|
}
|
|
// Copy the data into the memory blob
|
|
else
|
|
memcpy(p, b, sz);
|
|
// Obtain the object from the stack
|
|
Var< Object > obj(_SqVM, -1);
|
|
// Bind it as an array element
|
|
arr.Bind(elem, obj.value);
|
|
} break;
|
|
// Unknown type
|
|
default:
|
|
SqThrowF("Unknown value to fetch at index: %d", idx);
|
|
}
|
|
}
|
|
// Return the resulted array
|
|
return arr;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Table Statement::FetchTable() const
|
|
{
|
|
// Validate the handle
|
|
Validate();
|
|
// Return the requested information
|
|
return FetchTable(0, m_Handle->mColumns-1);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Table Statement::FetchTable(Int32 min) const
|
|
{
|
|
// Validate the handle
|
|
Validate();
|
|
// Return the requested information
|
|
return FetchTable(min, m_Handle->mColumns-1);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Table Statement::FetchTable(Int32 min, Int32 max) const
|
|
{
|
|
// Validate the handle
|
|
ValidateRow();
|
|
// Was there anything selected?
|
|
if (min == max)
|
|
return Table(); // Nothing to retrieve
|
|
// Is the minimum actually the minimum?
|
|
else if (min > max)
|
|
SqThrowF("Minimum is higher than maximum");
|
|
// Is the minimum in range>
|
|
else if (!m_Handle->CheckIndex(min))
|
|
SqThrowF("Minimum is out of range");
|
|
// Is the maximum in range?
|
|
else if (!m_Handle->CheckIndex(max))
|
|
SqThrowF("Maximum is out of range");
|
|
// Create a table to hold the selected column values
|
|
Table tbl(_SqVM);
|
|
// Used to bind null values
|
|
Object obj;
|
|
// Process the range of selected columns
|
|
for (Int32 elem = 0, idx = min; idx < max; ++elem, ++idx)
|
|
{
|
|
//Attempt to obtain the column name
|
|
CSStr name = sqlite3_column_name(m_Handle, idx);
|
|
// Validate the obtained name
|
|
if (!name)
|
|
SqThrowF("Unable to retrieve name of column (%d)", idx);
|
|
// Identify the type of value that must be assigned
|
|
switch (sqlite3_column_type(m_Handle, idx))
|
|
{
|
|
// Is this a null value?
|
|
case SQLITE_NULL:
|
|
{
|
|
// Make sure we don't insert the same instance
|
|
obj.Release();
|
|
// Now it's safe to insert the value
|
|
tbl.SetValue(name, obj);
|
|
} break;
|
|
// Is this an integer?
|
|
case SQLITE_INTEGER:
|
|
#ifdef _SQ64
|
|
tbl.SetValue(name, sqlite3_column_int64(m_Handle, idx));
|
|
#else
|
|
tbl.SetValue(name, sqlite3_column_int(m_Handle, idx));
|
|
#endif
|
|
break;
|
|
// Is this a floating point?
|
|
case SQLITE_FLOAT:
|
|
tbl.SetValue(name, sqlite3_column_double(m_Handle, idx));
|
|
break;
|
|
// Is this a string?
|
|
case SQLITE_TEXT:
|
|
tbl.SetValue(name, (CCStr)(sqlite3_column_text(m_Handle, idx)));
|
|
break;
|
|
// Is this raw data?
|
|
case SQLITE_BLOB:
|
|
{
|
|
// Obtain the initial stack size
|
|
const StackGuard sg(_SqVM);
|
|
// Obtain the size of the data
|
|
const Int32 sz = sqlite3_column_bytes(m_Handle, idx);
|
|
// Allocate a blob of the same size
|
|
SQUserPointer p = sqstd_createblob(_SqVM, sz);
|
|
// Obtain a pointer to the data
|
|
const void * b = sqlite3_column_blob(m_Handle, idx);
|
|
// Could the memory blob be allocated?
|
|
if (!p)
|
|
SqThrowF("Unable to allocate space for column blob value");
|
|
// Is there any data to read?
|
|
else if (!b)
|
|
{
|
|
// Pop the memory blob from the stack
|
|
sq_pop(_SqVM, 1);
|
|
// Push a null value instead
|
|
sq_pushnull(_SqVM);
|
|
}
|
|
// Copy the data into the memory blob
|
|
else
|
|
memcpy(p, b, sz);
|
|
// Obtain the object from the stack
|
|
Var< Object > obj(_SqVM, -1);
|
|
// Bind it as a table element
|
|
tbl.Bind(name, obj.value);
|
|
} break;
|
|
// Unknown type
|
|
default:
|
|
SqThrowF("Unknown value to fetch at index: %d", idx);
|
|
}
|
|
}
|
|
// Return the resulted table
|
|
return tbl;
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
bool Statement::CheckIndex(Int32 idx) const
|
|
{
|
|
// Validate the handle
|
|
Validate();
|
|
// Return the requested information
|
|
return m_Handle->CheckIndex(idx);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
bool Statement::IsColumnNull(Int32 idx) const
|
|
{
|
|
// Can we make the request?
|
|
ValidateIndex(idx);
|
|
// Return the requested information
|
|
return (sqlite3_column_type(m_Handle, idx) == SQLITE_NULL);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Int32 Statement::GetColumnIndex(CSStr name) const
|
|
{
|
|
// Validate the handle
|
|
Validate();
|
|
// Return the requested information
|
|
return m_Handle->GetColumnIndex(name);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
CSStr Statement::GetColumnName(Int32 idx) const
|
|
{
|
|
// Can we make the request?
|
|
ValidateIndex(idx);
|
|
// Return the requested information
|
|
return sqlite3_column_name(m_Handle, idx);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
CSStr Statement::GetColumnOriginName(Int32 idx) const
|
|
{
|
|
#ifdef SQLITE_ENABLE_COLUMN_METADATA
|
|
// Can we make the request?
|
|
ValidateIndex(idx);
|
|
// Return the requested information
|
|
return sqlite3_column_origin_name(m_Handle, idx);
|
|
#else
|
|
SQMOD_UNUSED_VAR(idx);
|
|
SqThrowF("The module was compiled without this feature");
|
|
#endif
|
|
// Request failed
|
|
return _SC("");
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Int32 Statement::GetColumnType(Int32 idx) const
|
|
{
|
|
// Can we make the request?
|
|
ValidateIndex(idx);
|
|
// Return the requested information
|
|
return sqlite3_column_type(m_Handle, idx);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Int32 Statement::GetColumnBytes(Int32 idx) const
|
|
{
|
|
// Can we make the request?
|
|
ValidateIndex(idx);
|
|
// Return the requested information
|
|
return sqlite3_column_bytes(m_Handle, idx);
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Object Statement::GetColumnByIndex(Int32 idx) const
|
|
{
|
|
// Can we make the request?
|
|
ValidateIndex(idx);
|
|
// Return the requested information
|
|
return Object(new Column(m_Handle, idx));
|
|
}
|
|
|
|
// ------------------------------------------------------------------------------------------------
|
|
Object Statement::GetColumnByName(CSStr name) const
|
|
{
|
|
// Validate the handle
|
|
Validate();
|
|
// Attempt to obtain the requested column index
|
|
const Int32 idx = m_Handle->GetColumnIndex(name);
|
|
// Validate the obtained index
|
|
if (idx < 0)
|
|
SqThrowF("Unknown column named (%s)", name);
|
|
// Return the requested column
|
|
return Object(new Column(m_Handle, idx));
|
|
}
|
|
|
|
} // Namespace:: SqMod
|