mirror of
https://github.com/grafana/grafana.git
synced 2024-12-02 13:39:19 -06:00
80 lines
1.5 KiB
Go
80 lines
1.5 KiB
Go
package migrator
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import "strconv"
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type Mysql struct {
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BaseDialect
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}
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func NewMysqlDialect() *Mysql {
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d := Mysql{}
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d.BaseDialect.dialect = &d
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d.BaseDialect.driverName = MYSQL
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return &d
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}
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func (db *Mysql) SupportEngine() bool {
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return true
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}
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func (db *Mysql) Quote(name string) string {
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return "`" + name + "`"
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}
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func (db *Mysql) QuoteStr() string {
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return "`"
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}
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func (db *Mysql) AutoIncrStr() string {
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return "AUTO_INCREMENT"
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}
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func (db *Mysql) SqlType(c *Column) string {
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var res string
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switch c.Type {
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case DB_Bool:
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res = DB_TinyInt
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c.Length = 1
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case DB_Serial:
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c.IsAutoIncrement = true
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c.IsPrimaryKey = true
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c.Nullable = false
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res = DB_Int
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case DB_BigSerial:
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c.IsAutoIncrement = true
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c.IsPrimaryKey = true
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c.Nullable = false
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res = DB_BigInt
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case DB_Bytea:
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res = DB_Blob
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case DB_TimeStampz:
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res = DB_Char
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c.Length = 64
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case DB_NVarchar:
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res = DB_Varchar
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default:
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res = c.Type
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}
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var hasLen1 bool = (c.Length > 0)
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var hasLen2 bool = (c.Length2 > 0)
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if res == DB_BigInt && !hasLen1 && !hasLen2 {
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c.Length = 20
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hasLen1 = true
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}
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if hasLen2 {
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res += "(" + strconv.Itoa(c.Length) + "," + strconv.Itoa(c.Length2) + ")"
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} else if hasLen1 {
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res += "(" + strconv.Itoa(c.Length) + ")"
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}
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return res
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}
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func (db *Mysql) TableCheckSql(tableName string) (string, []interface{}) {
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args := []interface{}{"grafana", tableName}
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sql := "SELECT `TABLE_NAME` from `INFORMATION_SCHEMA`.`TABLES` WHERE `TABLE_SCHEMA`=? and `TABLE_NAME`=?"
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return sql, args
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}
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