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Fix possible duplciated foreign key name

This commit is contained in:
Jinzhu 2015-08-01 11:27:01 +08:00
parent 05b3f036f8
commit 393d8a3a52
1 changed files with 2 additions and 1 deletions
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3
scope_private.go
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@ -558,7 +558,8 @@ func (scope *Scope) addIndex(unique bool, indexName string, column ...string) {
func (scope *Scope) addForeignKey(field string, dest string, onDelete string, onUpdate string) {
var table = scope.TableName()
var keyName = fmt.Sprintf("%s_%s_foreign", table, field)
var keyName = fmt.Sprintf("%s_%s_%s_foreign", table, field, regexp.MustCompile("[^a-zA-Z]").ReplaceAllString(dest, "_"))
keyName = regexp.MustCompile("_+").ReplaceAllString(keyName, "_")
var query = `ALTER TABLE %s ADD CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s ON DELETE %s ON UPDATE %s;`
scope.Raw(fmt.Sprintf(query, scope.QuotedTableName(), scope.QuoteIfPossible(keyName), scope.QuoteIfPossible(field), scope.QuoteIfPossible(dest), onDelete, onUpdate)).Exec()
}