mirror of
https://gitee.com/dromara/mayfly-go
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39 lines
801 B
Go
39 lines
801 B
Go
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package sqlite
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import (
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"database/sql"
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"errors"
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_ "github.com/mattn/go-sqlite3"
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"mayfly-go/internal/db/dbm/dbi"
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"os"
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"sync"
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)
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var (
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meta dbi.Meta
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once sync.Once
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)
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func GetMeta() dbi.Meta {
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once.Do(func() {
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meta = new(SqliteMeta)
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})
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return meta
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}
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type SqliteMeta struct {
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}
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func (md *SqliteMeta) GetSqlDb(d *dbi.DbInfo) (*sql.DB, error) {
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// 用host字段来存sqlite的文件路径
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// 检查文件是否存在,否则报错，基于sqlite会自动创建文件，为了服务器文件安全，所以先确定文件存在再连接，不自动创建
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if _, err := os.Stat(d.Host); err != nil {
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return nil, errors.New("数据库文件不存在")
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}
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return sql.Open("sqlite3", d.Host)
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}
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func (md *SqliteMeta) GetDialect(conn *dbi.DbConn) dbi.Dialect {
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return &SqliteDialect{conn}
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}
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