seaweedfs/weed/filer/mysql/mysql_sql_gen.go

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2021-01-20 01:21:50 +00:00
package mysql
import (
"fmt"
"github.com/chrislusf/seaweedfs/weed/filer/abstract_sql"
_ "github.com/go-sql-driver/mysql"
)
type SqlGenMysql struct {
CreateTableSqlTemplate string
DropTableSqlTemplate string
}
var (
_ = abstract_sql.SqlGenerator(&SqlGenMysql{})
)
func (gen *SqlGenMysql) GetSqlInsert(bucket string) string {
return fmt.Sprintf("INSERT INTO %s (dirhash,name,directory,meta) VALUES(?,?,?,?)", bucket)
}
func (gen *SqlGenMysql) GetSqlUpdate(bucket string) string {
return fmt.Sprintf("UPDATE %s SET meta=? WHERE dirhash=? AND name=? AND directory=?", bucket)
}
func (gen *SqlGenMysql) GetSqlFind(bucket string) string {
return fmt.Sprintf("SELECT meta FROM %s WHERE dirhash=? AND name=? AND directory=?", bucket)
}
func (gen *SqlGenMysql) GetSqlDelete(bucket string) string {
return fmt.Sprintf("DELETE FROM %s WHERE dirhash=? AND name=? AND directory=?", bucket)
}
func (gen *SqlGenMysql) GetSqlDeleteFolderChildren(bucket string) string {
return fmt.Sprintf("DELETE FROM %s WHERE dirhash=? AND directory=?", bucket)
}
func (gen *SqlGenMysql) GetSqlListExclusive(bucket string) string {
return fmt.Sprintf("SELECT NAME, meta FROM %s WHERE dirhash=? AND name>? AND directory=? AND name like ? ORDER BY NAME ASC LIMIT ?", bucket)
}
func (gen *SqlGenMysql) GetSqlListInclusive(bucket string) string {
return fmt.Sprintf("SELECT NAME, meta FROM %s WHERE dirhash=? AND name>=? AND directory=? AND name like ? ORDER BY NAME ASC LIMIT ?", bucket)
}
func (gen *SqlGenMysql) GetSqlCreateTable(bucket string) string {
return fmt.Sprintf(gen.CreateTableSqlTemplate, bucket)
}
func (gen *SqlGenMysql) GetSqlDropTable(bucket string) string {
return fmt.Sprintf(gen.DropTableSqlTemplate, bucket)
}