grafana/pkg/services/sqlstore/migrator/sqlite_dialect.go
Arve Knudsen 5070f7a75b
Chore: Start harmonizing linting with plugin SDK (#25854)
* Chore: Harmonize linting with plugin SDK

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

* Chore: Fix linting issues

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
2020-06-29 14:08:32 +02:00

112 lines
2.5 KiB
Go

package migrator
import (
"fmt"
"github.com/mattn/go-sqlite3"
"xorm.io/xorm"
)
type Sqlite3 struct {
BaseDialect
}
func NewSqlite3Dialect(engine *xorm.Engine) *Sqlite3 {
d := Sqlite3{}
d.BaseDialect.dialect = &d
d.BaseDialect.engine = engine
d.BaseDialect.driverName = SQLITE
return &d
}
func (db *Sqlite3) SupportEngine() bool {
return false
}
func (db *Sqlite3) Quote(name string) string {
return "`" + name + "`"
}
func (db *Sqlite3) AutoIncrStr() string {
return "AUTOINCREMENT"
}
func (db *Sqlite3) BooleanStr(value bool) string {
if value {
return "1"
}
return "0"
}
func (db *Sqlite3) DateTimeFunc(value string) string {
return "datetime(" + value + ")"
}
func (db *Sqlite3) SqlType(c *Column) string {
switch c.Type {
case DB_Date, DB_DateTime, DB_TimeStamp, DB_Time:
return DB_DateTime
case DB_TimeStampz:
return DB_Text
case DB_Char, DB_Varchar, DB_NVarchar, DB_TinyText, DB_Text, DB_MediumText, DB_LongText:
return DB_Text
case DB_Bit, DB_TinyInt, DB_SmallInt, DB_MediumInt, DB_Int, DB_Integer, DB_BigInt, DB_Bool:
return DB_Integer
case DB_Float, DB_Double, DB_Real:
return DB_Real
case DB_Decimal, DB_Numeric:
return DB_Numeric
case DB_TinyBlob, DB_Blob, DB_MediumBlob, DB_LongBlob, DB_Bytea, DB_Binary, DB_VarBinary:
return DB_Blob
case DB_Serial, DB_BigSerial:
c.IsPrimaryKey = true
c.IsAutoIncrement = true
c.Nullable = false
return DB_Integer
default:
return c.Type
}
}
func (db *Sqlite3) IndexCheckSql(tableName, indexName string) (string, []interface{}) {
args := []interface{}{tableName, indexName}
sql := "SELECT 1 FROM " + db.Quote("sqlite_master") + " WHERE " + db.Quote("type") + "='index' AND " + db.Quote("tbl_name") + "=? AND " + db.Quote("name") + "=?"
return sql, args
}
func (db *Sqlite3) DropIndexSql(tableName string, index *Index) string {
quote := db.Quote
//var unique string
idxName := index.XName(tableName)
return fmt.Sprintf("DROP INDEX %v", quote(idxName))
}
func (db *Sqlite3) CleanDB() error {
return nil
}
func (db *Sqlite3) isThisError(err error, errcode int) bool {
if driverErr, ok := err.(sqlite3.Error); ok {
if int(driverErr.ExtendedCode) == errcode {
return true
}
}
return false
}
func (db *Sqlite3) ErrorMessage(err error) string {
if driverErr, ok := err.(sqlite3.Error); ok {
return driverErr.Error()
}
return ""
}
func (db *Sqlite3) IsUniqueConstraintViolation(err error) bool {
return db.isThisError(err, int(sqlite3.ErrConstraintUnique))
}
func (db *Sqlite3) IsDeadlock(err error) bool {
return false // No deadlock
}