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Use BuildKeyName to build db's index name

This commit is contained in:
Jinzhu 2018-02-02 22:01:31 +08:00
parent ca46ec0770
commit 802104cc7c
4 changed files with 11 additions and 10 deletions
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4
dialect.go
View File

@ -41,8 +41,8 @@ type Dialect interface {
// LastInsertIdReturningSuffix most dbs support LastInsertId, but postgres needs to use `RETURNING`
LastInsertIDReturningSuffix(tableName, columnName string) string
// BuildForeignKeyName returns a foreign key name for the given table, field and reference
BuildForeignKeyName(tableName, field, dest string) string
// BuildKeyName returns a valid key name (foreign key, index key) for the given table, field and reference
BuildKeyName(kind, tableName string, fields ...string) string
// CurrentDatabase return current database name
CurrentDatabase() string

4
dialect_common.go
View File

@ -144,8 +144,8 @@ func (commonDialect) LastInsertIDReturningSuffix(tableName, columnName string) s
return ""
}
func (DefaultForeignKeyNamer) BuildForeignKeyName(tableName, field, dest string) string {
keyName := fmt.Sprintf("%s_%s_%s_foreign", tableName, field, dest)
func (DefaultForeignKeyNamer) BuildKeyName(kind, tableName string, fields ...string) string {
keyName := fmt.Sprintf("%s_%s_%s", kind, tableName, strings.Join(fields, "_"))
keyName = regexp.MustCompile("[^a-zA-Z0-9]+").ReplaceAllString(keyName, "_")
return keyName
}

6
dialect_mysql.go
View File

@ -157,8 +157,8 @@ func (mysql) SelectFromDummyTable() string {
return "FROM DUAL"
}
func (s mysql) BuildForeignKeyName(tableName, field, dest string) string {
keyName := s.commonDialect.BuildForeignKeyName(tableName, field, dest)
func (s mysql) BuildKeyName(kind, tableName string, fields ...string) string {
keyName := s.commonDialect.BuildKeyName(kind, tableName, fields...)
if utf8.RuneCountInString(keyName) <= 64 {
return keyName
}
@ -167,7 +167,7 @@ func (s mysql) BuildForeignKeyName(tableName, field, dest string) string {
bs := h.Sum(nil)
// sha1 is 40 characters, keep first 24 characters of destination
destRunes := []rune(regexp.MustCompile("[^a-zA-Z0-9]+").ReplaceAllString(dest, "_"))
destRunes := []rune(regexp.MustCompile("[^a-zA-Z0-9]+").ReplaceAllString(fields[0], "_"))
if len(destRunes) > 24 {
destRunes = destRunes[:24]
}

7
scope.go
View File

@ -1165,7 +1165,8 @@ func (scope *Scope) addIndex(unique bool, indexName string, column ...string) {
}
func (scope *Scope) addForeignKey(field string, dest string, onDelete string, onUpdate string) {
keyName := scope.Dialect().BuildForeignKeyName(scope.TableName(), field, dest)
// Compatible with old generated key
keyName := scope.Dialect().BuildKeyName(scope.TableName(), field, dest, "foreign")
if scope.Dialect().HasForeignKey(scope.TableName(), keyName) {
return
@ -1209,7 +1210,7 @@ func (scope *Scope) autoIndex() *Scope {
for _, name := range names {
if name == "INDEX" || name == "" {
name = fmt.Sprintf("idx_%v_%v", scope.TableName(), field.DBName)
name = scope.Dialect().BuildKeyName("idx", scope.TableName(), field.DBName)
}
indexes[name] = append(indexes[name], field.DBName)
}
@ -1220,7 +1221,7 @@ func (scope *Scope) autoIndex() *Scope {
for _, name := range names {
if name == "UNIQUE_INDEX" || name == "" {
name = fmt.Sprintf("uix_%v_%v", scope.TableName(), field.DBName)
name = scope.Dialect().BuildKeyName("uix", scope.TableName(), field.DBName)
}
uniqueIndexes[name] = append(uniqueIndexes[name], field.DBName)
}