mirror of
https://gitee.com/johng/gf
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113 lines
3.1 KiB
Go
113 lines
3.1 KiB
Go
// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://github.com/gogf/gf.
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// Package sqlitecgo implements gdb.Driver, which supports operations for database SQLite.
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//
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// Note:
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// 1. Using sqlitecgo is for building a 32-bit Windows operating system
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// 2. You need to set the environment variable CGO_ENABLED=1 and make sure that GCC is installed
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// on your path. windows gcc: https://jmeubank.github.io/tdm-gcc/
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package sqlitecgo
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import (
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"database/sql"
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"fmt"
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_ "github.com/mattn/go-sqlite3"
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"github.com/gogf/gf/contrib/drivers/sqlite/v2"
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"github.com/gogf/gf/v2/database/gdb"
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"github.com/gogf/gf/v2/encoding/gurl"
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"github.com/gogf/gf/v2/errors/gcode"
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"github.com/gogf/gf/v2/errors/gerror"
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"github.com/gogf/gf/v2/os/gfile"
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"github.com/gogf/gf/v2/text/gstr"
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"github.com/gogf/gf/v2/util/gconv"
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)
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// Driver is the driver for sqlite database.
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type Driver struct {
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gdb.DB
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}
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var (
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sqliteDriver = sqlite.New()
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)
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func init() {
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if err := gdb.Register(`sqlite`, New()); err != nil {
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panic(err)
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}
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}
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// New create and returns a driver that implements gdb.Driver, which supports operations for SQLite.
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func New() gdb.Driver {
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return &Driver{}
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}
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// New creates and returns a database object for sqlite.
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// It implements the interface of gdb.Driver for extra database driver installation.
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func (d *Driver) New(core *gdb.Core, node *gdb.ConfigNode) (gdb.DB, error) {
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db, err := sqliteDriver.New(core, node)
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if err != nil {
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return nil, err
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}
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return &Driver{
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DB: db,
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}, nil
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}
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// Open creates and returns an underlying sql.DB object for sqlite.
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// https://github.com/mattn/go-sglite3
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func (d *Driver) Open(config *gdb.ConfigNode) (db *sql.DB, err error) {
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var (
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source string
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underlyingDriverName = "sqlite3"
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)
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if config.Link != "" {
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// ============================================================================
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// Deprecated from v2.2.0.
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// ============================================================================
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source = config.Link
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} else {
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source = config.Name
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}
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// It searches the source file to locate its absolute path..
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if absolutePath, _ := gfile.Search(source); absolutePath != "" {
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source = absolutePath
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}
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// Multiple PRAGMAs can be specified, e.g.:
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// path/to/some.db?_pragma=busy_timeout(5000)&_pragma=journal_mode(WAL)
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if config.Extra != "" {
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var (
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options string
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extraMap map[string]interface{}
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)
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if extraMap, err = gstr.Parse(config.Extra); err != nil {
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return nil, err
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}
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for k, v := range extraMap {
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if options != "" {
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options += "&"
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}
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options += fmt.Sprintf(`_pragma=%s(%s)`, k, gurl.Encode(gconv.String(v)))
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}
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if len(options) > 1 {
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source += "?" + options
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}
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}
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if db, err = sql.Open(underlyingDriverName, source); err != nil {
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err = gerror.WrapCodef(
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gcode.CodeDbOperationError, err,
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`sql.Open failed for driver "%s" by source "%s"`, underlyingDriverName, source,
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)
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return nil, err
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}
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return
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}
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