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Create composite primary key for join table

This commit is contained in:
Jinzhu 2015-12-11 12:22:09 +08:00
parent 341703ed5d
commit ba694926d0
1 changed files with 5 additions and 2 deletions
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7
scope_private.go
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@ -492,12 +492,13 @@ func (scope *Scope) createJoinTable(field *StructField) {
if !scope.Dialect().HasTable(scope, joinTable) { if !scope.Dialect().HasTable(scope, joinTable) {
toScope := &Scope{Value: reflect.New(field.Struct.Type).Interface()} toScope := &Scope{Value: reflect.New(field.Struct.Type).Interface()}
var sqlTypes []string var sqlTypes, primaryKeys []string
for idx, fieldName := range relationship.ForeignFieldNames { for idx, fieldName := range relationship.ForeignFieldNames {
if field, ok := scope.Fields()[fieldName]; ok { if field, ok := scope.Fields()[fieldName]; ok {
value := reflect.Indirect(reflect.New(field.Struct.Type)) value := reflect.Indirect(reflect.New(field.Struct.Type))
primaryKeySqlType := scope.Dialect().SqlTag(value, 255, false) primaryKeySqlType := scope.Dialect().SqlTag(value, 255, false)
sqlTypes = append(sqlTypes, scope.Quote(relationship.ForeignDBNames[idx])+" "+primaryKeySqlType) sqlTypes = append(sqlTypes, scope.Quote(relationship.ForeignDBNames[idx])+" "+primaryKeySqlType)
primaryKeys = append(primaryKeys, scope.Quote(relationship.ForeignDBNames[idx]))
} }
} }
@ -506,9 +507,11 @@ func (scope *Scope) createJoinTable(field *StructField) {
value := reflect.Indirect(reflect.New(field.Struct.Type)) value := reflect.Indirect(reflect.New(field.Struct.Type))
primaryKeySqlType := scope.Dialect().SqlTag(value, 255, false) primaryKeySqlType := scope.Dialect().SqlTag(value, 255, false)
sqlTypes = append(sqlTypes, scope.Quote(relationship.AssociationForeignDBNames[idx])+" "+primaryKeySqlType) sqlTypes = append(sqlTypes, scope.Quote(relationship.AssociationForeignDBNames[idx])+" "+primaryKeySqlType)
primaryKeys = append(primaryKeys, scope.Quote(relationship.AssociationForeignDBNames[idx]))
} }
} }
scope.Err(scope.NewDB().Exec(fmt.Sprintf("CREATE TABLE %v (%v) %s", scope.Quote(joinTable), strings.Join(sqlTypes, ","), scope.getTableOptions())).Error)
scope.Err(scope.NewDB().Exec(fmt.Sprintf("CREATE TABLE %v (%v, PRIMARY KEY (%v)) %s", scope.Quote(joinTable), strings.Join(sqlTypes, ","), strings.Join(primaryKeys, ","), scope.getTableOptions())).Error)
} }
scope.NewDB().Table(joinTable).AutoMigrate(joinTableHandler) scope.NewDB().Table(joinTable).AutoMigrate(joinTableHandler)
} }