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Class_SQLiteDB.ahk
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; ======================================================================================================================
; Function: Class definitions as wrappers for SQLite3.dll to work with SQLite DBs.
; AHK version: 1.1.23.01
; Tested on: Win 10 Pro (x64), SQLite 3.7.13
; Version: 0.0.01.00/2011-08-10/just me
; 0.0.02.00/2012-08-10/just me - Added basic BLOB support
; 0.0.03.00/2012-08-11/just me - Added more advanced BLOB support
; 0.0.04.00/2013-06-29/just me - Added new methods AttachDB and DetachDB
; 0.0.05.00/2013-08-03/just me - Changed base class assignment
; 0.0.06.00/2016-01-28/just me - Fixed version check, revised parameter initialization.
; 0.0.07.00/2016-03-28/just me - Added support for PRAGMA statements.
; Remarks: Names of "private" properties / methods are prefixed with an underscore,
; they must not be set / called by the script!
;
; SQLite3.dll file is assumed to be in the script's folder, otherwise you have to
; provide an INI-File SQLiteDB.ini in the script's folder containing the path:
; [Main]
; DllPath=Path to SQLite3.dll
;
; Encoding of SQLite DBs is assumed to be UTF-8
; Minimum supported SQLite3.dll version is 3.6
; Download the current version of SQLite3.dll (and also SQlite3.exe) from www.sqlite.org
; ======================================================================================================================
; This software is provided 'as-is', without any express or implied warranty.
; In no event will the authors be held liable for any damages arising from the
; use of this software.
; ======================================================================================================================
; CLASS SQliteDB - SQLiteDB main class
; ======================================================================================================================
Class SQLiteDB Extends SQLiteDB.BaseClass {
; +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; PRIVATE Properties and Methods ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; ===================================================================================================================
; BaseClass - SQLiteDB base class
; ===================================================================================================================
Class BaseClass {
Static Version := ""
Static _SQLiteDLL := A_ScriptDir . "\SQLite3.dll"
Static _RefCount := 0
Static _MinVersion := "3.6"
}
; ===================================================================================================================
; CLASS _Table
; Object returned from method GetTable()
; _Table is an independent object and does not need SQLite after creation at all.
; ===================================================================================================================
Class _Table {
; ----------------------------------------------------------------------------------------------------------------
; CONSTRUCTOR Create instance variables
; ----------------------------------------------------------------------------------------------------------------
__New() {
This.ColumnCount := 0 ; Number of columns in the result table (Integer)
This.RowCount := 0 ; Number of rows in the result table (Integer)
This.ColumnNames := [] ; Names of columns in the result table (Array)
This.Rows := [] ; Rows of the result table (Array of Arrays)
This.HasNames := False ; Does var ColumnNames contain names? (Bool)
This.HasRows := False ; Does var Rows contain rows? (Bool)
This._CurrentRow := 0 ; Row index of last returned row (Integer)
}
; ----------------------------------------------------------------------------------------------------------------
; METHOD GetRow Get row for RowIndex
; Parameters: RowIndex - Index of the row to retrieve, the index of the first row is 1
; ByRef Row - Variable to pass out the row array
; Return values: On failure - False
; On success - True, Row contains a valid array
; Remarks: _CurrentRow is set to RowIndex, so a subsequent call of NextRow() will return the
; following row.
; ----------------------------------------------------------------------------------------------------------------
GetRow(RowIndex, ByRef Row) {
Row := ""
If (RowIndex < 1 || RowIndex > This.RowCount)
Return False
If !This.Rows.HasKey(RowIndex)
Return False
Row := This.Rows[RowIndex]
This._CurrentRow := RowIndex
Return True
}
; ----------------------------------------------------------------------------------------------------------------
; METHOD Next Get next row depending on _CurrentRow
; Parameters: ByRef Row - Variable to pass out the row array
; Return values: On failure - False, -1 for EOR (end of rows)
; On success - True, Row contains a valid array
; ----------------------------------------------------------------------------------------------------------------
Next(ByRef Row) {
Row := ""
If (This._CurrentRow >= This.RowCount)
Return -1
This._CurrentRow += 1
If !This.Rows.HasKey(This._CurrentRow)
Return False
Row := This.Rows[This._CurrentRow]
Return True
}
; ----------------------------------------------------------------------------------------------------------------
; METHOD Reset Reset _CurrentRow to zero
; Parameters: None
; Return value: True
; ----------------------------------------------------------------------------------------------------------------
Reset() {
This._CurrentRow := 0
Return True
}
}
; ===================================================================================================================
; CLASS _RecordSet
; Object returned from method Query()
; The records (rows) of a recordset can be accessed sequentially per call of Next() starting with the first record.
; After a call of Reset() calls of Next() will start with the first record again.
; When the recordset isn't needed any more, call Free() to free the resources.
; The lifetime of a recordset depends on the lifetime of the related SQLiteDB object.
; ===================================================================================================================
Class _RecordSet {
; ----------------------------------------------------------------------------------------------------------------
; CONSTRUCTOR Create instance variables
; ----------------------------------------------------------------------------------------------------------------
__New() {
This.ColumnCount := 0 ; Number of columns (Integer)
This.ColumnNames := [] ; Names of columns in the result table (Array)
This.HasNames := False ; Does var ColumnNames contain names? (Bool)
This.HasRows := False ; Does _RecordSet contain rows? (Bool)
This.CurrentRow := 0 ; Index of current row (Integer)
This.ErrorMsg := "" ; Last error message (String)
This.ErrorCode := 0 ; Last SQLite error code / ErrorLevel (Variant)
This._Handle := 0 ; Query handle (Pointer)
This._DB := {} ; SQLiteDB object (Object)
}
; ----------------------------------------------------------------------------------------------------------------
; METHOD Next Get next row of query result
; Parameters: ByRef Row - Variable to store the row array
; Return values: On success - True, Row contains the row array
; On failure - False, ErrorMsg / ErrorCode contain additional information
; -1 for EOR (end of records)
; ----------------------------------------------------------------------------------------------------------------
Next(ByRef Row) {
Static SQLITE_NULL := 5
Static SQLITE_BLOB := 4
Static EOR := -1
Row := ""
This.ErrorMsg := ""
This.ErrorCode := 0
If !(This._Handle) {
This.ErrorMsg := "Invalid query handle!"
Return False
}
RC := DllCall("SQlite3.dll\sqlite3_step", "Ptr", This._Handle, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_step failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC <> This._DB._ReturnCode("SQLITE_ROW")) {
If (RC = This._DB._ReturnCode("SQLITE_DONE")) {
This.ErrorMsg := "EOR"
This.ErrorCode := RC
Return EOR
}
This.ErrorMsg := This._DB.ErrMsg()
This.ErrorCode := RC
Return False
}
RC := DllCall("SQlite3.dll\sqlite3_data_count", "Ptr", This._Handle, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_data_count failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC < 1) {
This.ErrorMsg := "RecordSet is empty!"
This.ErrorCode := This._DB._ReturnCode("SQLITE_EMPTY")
Return False
}
Row := []
Loop, %RC% {
Column := A_Index - 1
ColumnType := DllCall("SQlite3.dll\sqlite3_column_type", "Ptr", This._Handle, "Int", Column, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_column_type failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (ColumnType = SQLITE_NULL) {
Row[A_Index] := ""
} Else If (ColumnType = SQLITE_BLOB) {
BlobPtr := DllCall("SQlite3.dll\sqlite3_column_blob", "Ptr", This._Handle, "Int", Column, "Cdecl UPtr")
BlobSize := DllCall("SQlite3.dll\sqlite3_column_bytes", "Ptr", This._Handle, "Int", Column, "Cdecl Int")
If (BlobPtr = 0) || (BlobSize = 0) {
Row[A_Index] := ""
} Else {
Row[A_Index] := {}
Row[A_Index].Size := BlobSize
Row[A_Index].Blob := ""
Row[A_Index].SetCapacity("Blob", BlobSize)
Addr := Row[A_Index].GetAddress("Blob")
DllCall("Kernel32.dll\RtlMoveMemory", "Ptr", Addr, "Ptr", BlobPtr, "Ptr", BlobSize)
}
} Else {
StrPtr := DllCall("SQlite3.dll\sqlite3_column_text", "Ptr", This._Handle, "Int", Column, "Cdecl UPtr")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_column_text failed!"
This.ErrorCode := ErrorLevel
Return False
}
Row[A_Index] := StrGet(StrPtr, "UTF-8")
}
}
This.CurrentRow += 1
Return True
}
; ----------------------------------------------------------------------------------------------------------------
; METHOD Reset Reset the result pointer
; Parameters: None
; Return values: On success - True
; On failure - False, ErrorMsg / ErrorCode contain additional information
; Remarks: After a call of this method you can access the query result via Next() again.
; ----------------------------------------------------------------------------------------------------------------
Reset() {
This.ErrorMsg := ""
This.ErrorCode := 0
If !(This._Handle) {
This.ErrorMsg := "Invalid query handle!"
Return False
}
RC := DllCall("SQlite3.dll\sqlite3_reset", "Ptr", This._Handle, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_reset failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC) {
This.ErrorMsg := This._DB._ErrMsg()
This.ErrorCode := RC
Return False
}
This.CurrentRow := 0
Return True
}
; ----------------------------------------------------------------------------------------------------------------
; METHOD Free Free query result
; Parameters: None
; Return values: On success - True
; On failure - False, ErrorMsg / ErrorCode contain additional information
; Remarks: After the call of this method further access on the query result is impossible.
; ----------------------------------------------------------------------------------------------------------------
Free() {
This.ErrorMsg := ""
This.ErrorCode := 0
If !(This._Handle)
Return True
RC := DllCall("SQlite3.dll\sqlite3_finalize", "Ptr", This._Handle, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_finalize failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC) {
This.ErrorMsg := This._DB._ErrMsg()
This.ErrorCode := RC
Return False
}
This._DB._Queries.Remove(This._Handle)
This._Handle := 0
Return True
}
}
; ===================================================================================================================
; CONSTRUCTOR __New
; ===================================================================================================================
__New() {
This._Path := "" ; Database path (String)
This._Handle := 0 ; Database handle (Pointer)
This._Queries := {} ; Valid queries (Object)
If (This.Base._RefCount = 0) {
SQLiteDLL := This.Base._SQLiteDLL
If !FileExist(SQLiteDLL)
If FileExist(A_ScriptDir . "\SQLiteDB.ini") {
IniRead, SQLiteDLL, %A_ScriptDir%\SQLiteDB.ini, Main, DllPath, %SQLiteDLL%
This.Base._SQLiteDLL := SQLiteDLL
}
If !(DLL := DllCall("LoadLibrary", "Str", This.Base._SQLiteDLL, "UPtr")) {
MsgBox, 16, SQLiteDB Error, % "DLL " . SQLiteDLL . " does not exist!"
ExitApp
}
This.Base.Version := StrGet(DllCall("SQlite3.dll\sqlite3_libversion", "Cdecl UPtr"), "UTF-8")
SQLVersion := StrSplit(This.Base.Version, ".")
MinVersion := StrSplit(This.Base._MinVersion, ".")
If (SQLVersion[1] < MinVersion[1]) || ((SQLVersion[1] = MinVersion[1]) && (SQLVersion[2] < MinVersion[2])){
DllCall("FreeLibrary", "Ptr", DLL)
MsgBox, 16, SQLite ERROR, % "Version " . This.Base.Version . " of SQLite3.dll is not supported!`n`n"
. "You can download the current version from www.sqlite.org!"
ExitApp
}
}
This.Base._RefCount += 1
}
; ===================================================================================================================
; DESTRUCTOR __Delete
; ===================================================================================================================
__Delete() {
If (This._Handle)
This.CloseDB()
This.Base._RefCount -= 1
If (This.Base._RefCount = 0) {
If (DLL := DllCall("GetModuleHandle", "Str", This.Base._SQLiteDLL, "UPtr"))
DllCall("FreeLibrary", "Ptr", DLL)
}
}
; ===================================================================================================================
; PRIVATE _StrToUTF8
; ===================================================================================================================
_StrToUTF8(Str, ByRef UTF8) {
VarSetCapacity(UTF8, StrPut(Str, "UTF-8"), 0)
StrPut(Str, &UTF8, "UTF-8")
Return &UTF8
}
; ===================================================================================================================
; PRIVATE _UTF8ToStr
; ===================================================================================================================
_UTF8ToStr(UTF8) {
Return StrGet(UTF8, "UTF-8")
}
; ===================================================================================================================
; PRIVATE _ErrMsg
; ===================================================================================================================
_ErrMsg() {
If (RC := DllCall("SQLite3.dll\sqlite3_errmsg", "Ptr", This._Handle, "Cdecl UPtr"))
Return StrGet(&RC, "UTF-8")
Return ""
}
; ===================================================================================================================
; PRIVATE _ErrCode
; ===================================================================================================================
_ErrCode() {
Return DllCall("SQLite3.dll\sqlite3_errcode", "Ptr", This._Handle, "Cdecl Int")
}
; ===================================================================================================================
; PRIVATE _Changes
; ===================================================================================================================
_Changes() {
Return DllCall("SQLite3.dll\sqlite3_changes", "Ptr", This._Handle, "Cdecl Int")
}
; ===================================================================================================================
; PRIVATE _Returncode
; ===================================================================================================================
_ReturnCode(RC) {
Static RCODE := {SQLITE_OK: 0 ; Successful result
, SQLITE_ERROR: 1 ; SQL error or missing database
, SQLITE_INTERNAL: 2 ; NOT USED. Internal logic error in SQLite
, SQLITE_PERM: 3 ; Access permission denied
, SQLITE_ABORT: 4 ; Callback routine requested an abort
, SQLITE_BUSY: 5 ; The database file is locked
, SQLITE_LOCKED: 6 ; A table in the database is locked
, SQLITE_NOMEM: 7 ; A malloc() failed
, SQLITE_READONLY: 8 ; Attempt to write a readonly database
, SQLITE_INTERRUPT: 9 ; Operation terminated by sqlite3_interrupt()
, SQLITE_IOERR: 10 ; Some kind of disk I/O error occurred
, SQLITE_CORRUPT: 11 ; The database disk image is malformed
, SQLITE_NOTFOUND: 12 ; NOT USED. Table or record not found
, SQLITE_FULL: 13 ; Insertion failed because database is full
, SQLITE_CANTOPEN: 14 ; Unable to open the database file
, SQLITE_PROTOCOL: 15 ; NOT USED. Database lock protocol error
, SQLITE_EMPTY: 16 ; Database is empty
, SQLITE_SCHEMA: 17 ; The database schema changed
, SQLITE_TOOBIG: 18 ; String or BLOB exceeds size limit
, SQLITE_CONSTRAINT: 19 ; Abort due to constraint violation
, SQLITE_MISMATCH: 20 ; Data type mismatch
, SQLITE_MISUSE: 21 ; Library used incorrectly
, SQLITE_NOLFS: 22 ; Uses OS features not supported on host
, SQLITE_AUTH: 23 ; Authorization denied
, SQLITE_FORMAT: 24 ; Auxiliary database format error
, SQLITE_RANGE: 25 ; 2nd parameter to sqlite3_bind out of range
, SQLITE_NOTADB: 26 ; File opened that is not a database file
, SQLITE_ROW: 100 ; sqlite3_step() has another row ready
, SQLITE_DONE: 101} ; sqlite3_step() has finished executing
Return RCODE.HasKey(RC) ? RCODE[RC] : ""
}
; +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; PUBLIC Interface ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; ===================================================================================================================
; Properties
; ===================================================================================================================
ErrorMsg := "" ; Error message (String)
ErrorCode := 0 ; SQLite error code / ErrorLevel (Variant)
Changes := 0 ; Changes made by last call of Exec() (Integer)
SQL := "" ; Last executed SQL statement (String)
; ===================================================================================================================
; METHOD OpenDB Open a database
; Parameters: DBPath - Path of the database file
; Access - Wanted access: "R"ead / "W"rite
; Create - Create new database in write mode, if it doesn't exist
; Return values: On success - True
; On failure - False, ErrorMsg / ErrorCode contain additional information
; Remarks: If DBPath is empty in write mode, a database called ":memory:" is created in memory
; and deletet on call of CloseDB.
; ===================================================================================================================
OpenDB(DBPath, Access := "W", Create := True) {
Static SQLITE_OPEN_READONLY := 0x01 ; Database opened as read-only
Static SQLITE_OPEN_READWRITE := 0x02 ; Database opened as read-write
Static SQLITE_OPEN_CREATE := 0x04 ; Database will be created if not exists
Static MEMDB := ":memory:"
This.ErrorMsg := ""
This.ErrorCode := 0
HDB := 0
If (DBPath = "")
DBPath := MEMDB
If (DBPath = This._Path) && (This._Handle)
Return True
If (This._Handle) {
This.ErrorMsg := "You must first close DB " . This._Path . "!"
Return False
}
Flags := 0
Access := SubStr(Access, 1, 1)
If (Access <> "W") && (Access <> "R")
Access := "R"
Flags := SQLITE_OPEN_READONLY
If (Access = "W") {
Flags := SQLITE_OPEN_READWRITE
If (Create)
Flags |= SQLITE_OPEN_CREATE
}
This._Path := DBPath
This._StrToUTF8(DBPath, UTF8)
RC := DllCall("SQlite3.dll\sqlite3_open_v2", "Ptr", &UTF8, "PtrP", HDB, "Int", Flags, "Ptr", 0, "Cdecl Int")
If (ErrorLevel) {
This._Path := ""
This.ErrorMsg := "DLLCall sqlite3_open_v2 failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC) {
This._Path := ""
This.ErrorMsg := This._ErrMsg()
This.ErrorCode := RC
Return False
}
This._Handle := HDB
Return True
}
; ===================================================================================================================
; METHOD CloseDB Close database
; Parameters: None
; Return values: On success - True
; On failure - False, ErrorMsg / ErrorCode contain additional information
; ===================================================================================================================
CloseDB() {
This.ErrorMsg := ""
This.ErrorCode := 0
This.SQL := ""
If !(This._Handle)
Return True
For Each, Query in This._Queries
DllCall("SQlite3.dll\sqlite3_finalize", "Ptr", Query, "Cdecl Int")
RC := DllCall("SQlite3.dll\sqlite3_close", "Ptr", This._Handle, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_close failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC) {
This.ErrorMsg := This._ErrMsg()
This.ErrorCode := RC
Return False
}
This._Path := ""
This._Handle := ""
This._Queries := []
Return True
}
; ===================================================================================================================
; METHOD AttachDB Add another database file to the current database connection
; http://www.sqlite.org/lang_attach.html
; Parameters: DBPath - Path of the database file
; DBAlias - Database alias name used internally by SQLite
; Return values: On success - True
; On failure - False, ErrorMsg / ErrorCode contain additional information
; ===================================================================================================================
AttachDB(DBPath, DBAlias) {
Return This.Exec("ATTACH DATABASE '" . DBPath . "' As " . DBAlias . ";")
}
; ===================================================================================================================
; METHOD DetachDB Detaches an additional database connection previously attached using AttachDB()
; http://www.sqlite.org/lang_detach.html
; Parameters: DBAlias - Database alias name used with AttachDB()
; Return values: On success - True
; On failure - False, ErrorMsg / ErrorCode contain additional information
; ===================================================================================================================
DetachDB(DBAlias) {
Return This.Exec("DETACH DATABASE " . DBAlias . ";")
}
; ===================================================================================================================
; METHOD Exec Execute SQL statement
; Parameters: SQL - Valid SQL statement
; Callback - Name of a callback function to invoke for each result row coming out
; of the evaluated SQL statements.
; The function must accept 4 parameters:
; 1: SQLiteDB object
; 2: Number of columns
; 3: Pointer to an array of pointers to columns text
; 4: Pointer to an array of pointers to column names
; The address of the current SQL string is passed in A_EventInfo.
; If the callback function returns non-zero, DB.Exec() returns SQLITE_ABORT
; without invoking the callback again and without running any subsequent
; SQL statements.
; Return values: On success - True, the number of changed rows is given in property Changes
; On failure - False, ErrorMsg / ErrorCode contain additional information
; ===================================================================================================================
Exec(SQL, Callback := "") {
This.ErrorMsg := ""
This.ErrorCode := 0
This.SQL := SQL
If !(This._Handle) {
This.ErrorMsg := "Invalid dadabase handle!"
Return False
}
CBPtr := 0
Err := 0
If (FO := Func(Callback)) && (FO.MinParams = 4)
CBPtr := RegisterCallback(Callback, "F C", 4, &SQL)
This._StrToUTF8(SQL, UTF8)
RC := DllCall("SQlite3.dll\sqlite3_exec", "Ptr", This._Handle, "Ptr", &UTF8, "Int", CBPtr, "Ptr", Object(This)
, "PtrP", Err, "Cdecl Int")
CallError := ErrorLevel
If (CBPtr)
DllCall("Kernel32.dll\GlobalFree", "Ptr", CBPtr)
If (CallError) {
This.ErrorMsg := "DLLCall sqlite3_exec failed!"
This.ErrorCode := CallError
Return False
}
If (RC) {
This.ErrorMsg := StrGet(Err, "UTF-8")
This.ErrorCode := RC
DllCall("SQLite3.dll\sqlite3_free", "Ptr", Err, "Cdecl")
Return False
}
This.Changes := This._Changes()
Return True
}
; ===================================================================================================================
; METHOD GetTable Get complete result for SELECT query
; Parameters: SQL - SQL SELECT statement
; ByRef TB - Variable to store the result object (TB _Table)
; MaxResult - Number of rows to return:
; 0 Complete result (default)
; -1 Return only RowCount and ColumnCount
; -2 Return counters and array ColumnNames
; n Return counters and ColumnNames and first n rows
; Return values: On success - True, TB contains the result object
; On failure - False, ErrorMsg / ErrorCode contain additional information
; ===================================================================================================================
GetTable(SQL, ByRef TB, MaxResult := 0) {
TB := ""
This.ErrorMsg := ""
This.ErrorCode := 0
This.SQL := SQL
If !(This._Handle) {
This.ErrorMsg := "Invalid dadabase handle!"
Return False
}
If !RegExMatch(SQL, "i)^\s*(SELECT|PRAGMA)\s") {
This.ErrorMsg := "Method " . A_ThisFunc . " requires a query statement!"
Return False
}
Names := ""
Err := 0, RC := 0, GetRows := 0
I := 0, Rows := Cols := 0
Table := 0
If MaxResult Is Not Integer
MaxResult := 0
If (MaxResult < -2)
MaxResult := 0
This._StrToUTF8(SQL, UTF8)
RC := DllCall("SQlite3.dll\sqlite3_get_table", "Ptr", This._Handle, "Ptr", &UTF8, "PtrP", Table
, "IntP", Rows, "IntP", Cols, "PtrP", Err, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_get_table failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC) {
This.ErrorMsg := StrGet(Err, "UTF-8")
This.ErrorCode := RC
DllCall("SQLite3.dll\sqlite3_free", "Ptr", Err, "Cdecl")
Return False
}
TB := new This._Table
TB.ColumnCount := Cols
TB.RowCount := Rows
If (MaxResult = -1) {
DllCall("SQLite3.dll\sqlite3_free_table", "Ptr", Table, "Cdecl")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_free_table failed!"
This.ErrorCode := ErrorLevel
Return False
}
Return True
}
If (MaxResult = -2)
GetRows := 0
Else If (MaxResult > 0) && (MaxResult <= Rows)
GetRows := MaxResult
Else
GetRows := Rows
Offset := 0
Names := Array()
Loop, %Cols% {
Names[A_Index] := StrGet(NumGet(Table+0, Offset, "UPtr"), "UTF-8")
Offset += A_PtrSize
}
TB.ColumnNames := Names
TB.HasNames := True
Loop, %GetRows% {
I := A_Index
TB.Rows[I] := []
Loop, %Cols% {
TB.Rows[I][A_Index] := StrGet(NumGet(Table+0, Offset, "UPtr"), "UTF-8")
Offset += A_PtrSize
}
}
If (GetRows)
TB.HasRows := True
DllCall("SQLite3.dll\sqlite3_free_table", "Ptr", Table, "Cdecl")
If (ErrorLevel) {
TB := ""
This.ErrorMsg := "DLLCall sqlite3_free_table failed!"
This.ErrorCode := ErrorLevel
Return False
}
Return True
}
; ===================================================================================================================
; METHOD Query Get "recordset" object for prepared SELECT query
; Parameters: SQL - SQL SELECT statement
; ByRef RS - Variable to store the result object (Class _RecordSet)
; Return values: On success - True, RS contains the result object
; On failure - False, ErrorMsg / ErrorCode contain additional information
; ===================================================================================================================
Query(SQL, ByRef RS) {
RS := ""
This.ErrorMsg := ""
This.ErrorCode := 0
This.SQL := SQL
ColumnCount := 0
HasRows := False
If !(This._Handle) {
This.ErrorMsg := "Invalid dadabase handle!"
Return False
}
If !RegExMatch(SQL, "i)^\s*(SELECT|PRAGMA)\s|") {
This.ErrorMsg := "Method " . A_ThisFunc . " requires a query statement!"
Return False
}
Query := 0
This._StrToUTF8(SQL, UTF8)
RC := DllCall("SQlite3.dll\sqlite3_prepare_v2", "Ptr", This._Handle, "Ptr", &UTF8, "Int", -1
, "PtrP", Query, "Ptr", 0, "Cdecl Int")
If (ErrorLeveL) {
This.ErrorMsg := "DLLCall sqlite3_prepare_v2 failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC) {
This.ErrorMsg := This._ErrMsg()
This.ErrorCode := RC
Return False
}
RC := DllCall("SQlite3.dll\sqlite3_column_count", "Ptr", Query, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_column_count failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC < 1) {
This.ErrorMsg := "Query result is empty!"
This.ErrorCode := This._ReturnCode("SQLITE_EMPTY")
Return False
}
ColumnCount := RC
Names := []
Loop, %RC% {
StrPtr := DllCall("SQlite3.dll\sqlite3_column_name", "Ptr", Query, "Int", A_Index - 1, "Cdecl UPtr")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_column_name failed!"
This.ErrorCode := ErrorLevel
Return False
}
Names[A_Index] := StrGet(StrPtr, "UTF-8")
}
RC := DllCall("SQlite3.dll\sqlite3_step", "Ptr", Query, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_step failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC = This._ReturnCode("SQLITE_ROW"))
HasRows := True
RC := DllCall("SQlite3.dll\sqlite3_reset", "Ptr", Query, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_reset failed!"
This.ErrorCode := ErrorLevel
Return False
}
RS := new This._RecordSet
RS.ColumnCount := ColumnCount
RS.ColumnNames := Names
RS.HasNames := True
RS.HasRows := HasRows
RS._Handle := Query
RS._DB := This
This._Queries[Query] := Query
Return True
}
; ===================================================================================================================
; METHOD LastInsertRowID Get the ROWID of the last inserted row
; Parameters: ByRef RowID - Variable to store the ROWID
; Return values: On success - True, RowID contains the ROWID
; On failure - False, ErrorMsg / ErrorCode contain additional information
; ===================================================================================================================
LastInsertRowID(ByRef RowID) {
This.ErrorMsg := ""
This.ErrorCode := 0
This.SQL := ""
If !(This._Handle) {
This.ErrorMsg := "Invalid dadabase handle!"
Return False
}
RowID := 0
RC := DllCall("SQLite3.dll\sqlite3_last_insert_rowid", "Ptr", This._Handle, "Cdecl Int64")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_last_insert_rowid failed!"
This.ErrorCode := ErrorLevel
Return False
}
RowID := RC
Return True
}
; ===================================================================================================================
; METHOD TotalChanges Get the number of changed rows since connecting to the database
; Parameters: ByRef Rows - Variable to store the number of rows
; Return values: On success - True, Rows contains the number of rows
; On failure - False, ErrorMsg / ErrorCode contain additional information
; ===================================================================================================================
TotalChanges(ByRef Rows) {
This.ErrorMsg := ""
This.ErrorCode := 0
This.SQL := ""
If !(This._Handle) {
This.ErrorMsg := "Invalid dadabase handle!"
Return False
}
Rows := 0
RC := DllCall("SQLite3.dll\sqlite3_total_changes", "Ptr", This._Handle, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_total_changes failed!"
This.ErrorCode := ErrorLevel
Return False
}
Rows := RC
Return True
}
; ===================================================================================================================
; METHOD SetTimeout Set the timeout to wait before SQLITE_BUSY or SQLITE_IOERR_BLOCKED is returned,
; when a table is locked.
; Parameters: TimeOut - Time to wait in milliseconds
; Return values: On success - True
; On failure - False, ErrorMsg / ErrorCode contain additional information
; ===================================================================================================================
SetTimeout(Timeout := 1000) {
This.ErrorMsg := ""
This.ErrorCode := 0
This.SQL := ""
If !(This._Handle) {
This.ErrorMsg := "Invalid dadabase handle!"
Return False
}
If Timeout Is Not Integer
Timeout := 1000
RC := DllCall("SQLite3.dll\sqlite3_busy_timeout", "Ptr", This._Handle, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_busy_timeout failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC) {
This.ErrorMsg := This._ErrMsg()
This.ErrorCode := RC
Return False
}
Return True
}
; ===================================================================================================================
; METHOD EscapeStr Escapes special characters in a string to be used as field content
; Parameters: Str - String to be escaped
; Quote - Add single quotes around the outside of the total string (True / False)
; Return values: On success - True
; On failure - False, ErrorMsg / ErrorCode contain additional information
; ===================================================================================================================
EscapeStr(ByRef Str, Quote := True) {
This.ErrorMsg := ""
This.ErrorCode := 0
This.SQL := ""
If !(This._Handle) {
This.ErrorMsg := "Invalid dadabase handle!"
Return False
}
If Str Is Number
Return True
OP := Quote ? "%Q" : "%q"
This._StrToUTF8(Str, UTF8)
Ptr := DllCall("SQLite3.dll\sqlite3_mprintf", "Ptr", &OP, "Ptr", &UTF8, "Cdecl UPtr")
If (ErrorLevel) {
This.ErrorMsg := "DLLCall sqlite3_mprintf failed!"
This.ErrorCode := ErrorLevel
Return False
}
Str := This._UTF8ToStr(Ptr)
DllCall("SQLite3.dll\sqlite3_free", "Ptr", Ptr, "Cdecl")
Return True
}
; ===================================================================================================================
; METHOD StoreBLOB Use BLOBs as parameters of an INSERT/UPDATE/REPLACE statement.
; Parameters: SQL - SQL statement to be compiled
; BlobArray - Array of objects containing two keys/value pairs:
; Addr : Address of the (variable containing the) BLOB.
; Size : Size of the BLOB in bytes.
; Return values: On success - True
; On failure - False, ErrorMsg / ErrorCode contain additional information
; Remarks: For each BLOB in the row you have to specify a ? parameter within the statement. The
; parameters are numbered automatically from left to right starting with 1.
; For each parameter you have to pass an object within BlobArray containing the address
; and the size of the BLOB.
; ===================================================================================================================
StoreBLOB(SQL, BlobArray) {
Static SQLITE_STATIC := 0
Static SQLITE_TRANSIENT := -1
This.ErrorMsg := ""
This.ErrorCode := 0
If !(This._Handle) {
This.ErrorMsg := "Invalid dadabase handle!"
Return False
}
If !RegExMatch(SQL, "i)^\s*(INSERT|UPDATE|REPLACE)\s") {
This.ErrorMsg := A_ThisFunc . " requires an INSERT/UPDATE/REPLACE statement!"
Return False
}
Query := 0
This._StrToUTF8(SQL, UTF8)
RC := DllCall("SQlite3.dll\sqlite3_prepare_v2", "Ptr", This._Handle, "Ptr", &UTF8, "Int", -1
, "PtrP", Query, "Ptr", 0, "Cdecl Int")
If (ErrorLeveL) {
This.ErrorMsg := A_ThisFunc . ": DLLCall sqlite3_prepare_v2 failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC) {
This.ErrorMsg := A_ThisFunc . ": " . This._ErrMsg()
This.ErrorCode := RC
Return False
}
For BlobNum, Blob In BlobArray {
If !(Blob.Addr) || !(Blob.Size) {
This.ErrorMsg := A_ThisFunc . ": Invalid parameter BlobArray!"
This.ErrorCode := ErrorLevel
Return False
}
RC := DllCall("SQlite3.dll\sqlite3_bind_blob", "Ptr", Query, "Int", BlobNum, "Ptr", Blob.Addr
, "Int", Blob.Size, "Ptr", SQLITE_STATIC, "Cdecl Int")
If (ErrorLeveL) {
This.ErrorMsg := A_ThisFunc . ": DLLCall sqlite3_prepare_v2 failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC) {
This.ErrorMsg := A_ThisFunc . ": " . This._ErrMsg()
This.ErrorCode := RC
Return False
}
}
RC := DllCall("SQlite3.dll\sqlite3_step", "Ptr", Query, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := A_ThisFunc . ": DLLCall sqlite3_step failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC) && (RC <> This._ReturnCode("SQLITE_DONE")) {
This.ErrorMsg := A_ThisFunc . ": " . This._ErrMsg()
This.ErrorCode := RC
Return False
}
RC := DllCall("SQlite3.dll\sqlite3_finalize", "Ptr", Query, "Cdecl Int")
If (ErrorLevel) {
This.ErrorMsg := A_ThisFunc . ": DLLCall sqlite3_finalize failed!"
This.ErrorCode := ErrorLevel
Return False
}
If (RC) {
This.ErrorMsg := A_ThisFunc . ": " . This._ErrMsg()
This.ErrorCode := RC
Return False
}
Return True
}
}