124 lines
3.2 KiB
Go
124 lines
3.2 KiB
Go
package system
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import (
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"context"
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"errors"
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"os"
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"path/filepath"
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"github.com/glebarez/sqlite"
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"github.com/go-kratos/kratos/v2/log"
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"gorm.io/gorm"
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)
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// SqliteConfig SQLite配置
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type SqliteConfig struct {
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Path string
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Dbname string
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MaxIdleConns int
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MaxOpenConns int
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LogMode string
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}
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// Dsn 生成SQLite DSN
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func (c *SqliteConfig) Dsn() string {
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return filepath.Join(c.Path, c.Dbname+".db")
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}
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// SqliteInitHandler SQLite初始化处理器
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type SqliteInitHandler struct {
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log *log.Helper
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configWriter func(ctx context.Context, dbType string, config interface{}) error
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}
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// NewSqliteInitHandler 创建SQLite初始化处理器
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func NewSqliteInitHandler(logger *log.Helper, configWriter func(ctx context.Context, dbType string, config interface{}) error) *SqliteInitHandler {
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return &SqliteInitHandler{
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log: logger,
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configWriter: configWriter,
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}
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}
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// WriteConfig sqlite回写配置
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func (h *SqliteInitHandler) WriteConfig(ctx context.Context) error {
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c, ok := ctx.Value("config").(SqliteConfig)
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if !ok {
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return errors.New("sqlite config invalid")
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}
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if h.configWriter != nil {
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return h.configWriter(ctx, "sqlite", c)
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}
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return nil
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}
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// EnsureDB 创建数据库并初始化 sqlite
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func (h *SqliteInitHandler) EnsureDB(ctx context.Context, conf *InitDBRequest) (next context.Context, err error) {
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if s, ok := ctx.Value("dbtype").(string); !ok || s != "sqlite" {
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return ctx, ErrDBTypeMismatch
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}
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c := h.toSqliteConfig(conf)
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next = context.WithValue(ctx, "config", c)
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if c.Dbname == "" {
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return ctx, nil
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} // 如果没有数据库名, 则跳出初始化数据
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dsn := h.sqliteEmptyDsn(conf)
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var db *gorm.DB
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if db, err = gorm.Open(sqlite.Open(dsn), &gorm.Config{
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DisableForeignKeyConstraintWhenMigrating: true,
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}); err != nil {
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return ctx, err
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}
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// 设置AutoCode根目录
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autoCodeRoot, _ := filepath.Abs("..")
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next = context.WithValue(next, "autoCodeRoot", autoCodeRoot)
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next = context.WithValue(next, "db", db)
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return next, err
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}
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// InitTables 初始化表
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func (h *SqliteInitHandler) InitTables(ctx context.Context, inits InitSlice) error {
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return createTables(ctx, inits)
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}
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// InitData 初始化数据
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func (h *SqliteInitHandler) InitData(ctx context.Context, inits InitSlice) error {
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next, cancel := context.WithCancel(ctx)
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defer cancel()
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for _, init := range inits {
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if init.DataInserted(next) {
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h.log.Infof(InitDataExist, Sqlite, init.InitializerName())
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continue
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}
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if n, err := init.InitializeData(next); err != nil {
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h.log.Errorf(InitDataFailed, Sqlite, init.InitializerName(), err)
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return err
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} else {
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next = n
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h.log.Infof(InitDataSuccess, Sqlite, init.InitializerName())
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}
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}
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h.log.Infof(InitSuccess, Sqlite)
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return nil
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}
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// sqliteEmptyDsn sqlite 空数据库 建库链接
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func (h *SqliteInitHandler) sqliteEmptyDsn(i *InitDBRequest) string {
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separator := string(os.PathSeparator)
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return i.DBPath + separator + i.DBName + ".db"
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}
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// toSqliteConfig 转换为SQLite配置
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func (h *SqliteInitHandler) toSqliteConfig(i *InitDBRequest) SqliteConfig {
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return SqliteConfig{
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Path: i.DBPath,
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Dbname: i.DBName,
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MaxIdleConns: 10,
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MaxOpenConns: 100,
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LogMode: "error",
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}
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}
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