Fixed missing database name with table name. (#153)

migrator.go

@@ -155,7 +155,7 @@ func (m Migrator) AlterColumn(value interface{}, field string) error {
 
  return m.DB.Exec(
  "ALTER TABLE ? MODIFY COLUMN ? ?",
- clause.Table{Name: stmt.Table}, clause.Column{Name: field.DBName}, fullDataType,
+ m.CurrentTable(stmt), clause.Column{Name: field.DBName}, fullDataType,
  ).Error
  }
  }
@@ -215,7 +215,7 @@ func (m Migrator) RenameColumn(value interface{}, oldName, newName string) error
  if field != nil {
  return m.DB.Exec(
  "ALTER TABLE ? CHANGE ? ? ?",
- clause.Table{Name: stmt.Table}, clause.Column{Name: oldName},
+ m.CurrentTable(stmt), clause.Column{Name: oldName},
  clause.Column{Name: newName}, m.FullDataTypeOf(field),
  ).Error
  }
@@ -252,7 +252,7 @@ func (m Migrator) RenameIndex(value interface{}, oldName, newName string) error
  return m.RunWithValue(value, func(stmt *gorm.Statement) error {
  return m.DB.Exec(
  "ALTER TABLE ? RENAME INDEX ? TO ?",
- clause.Table{Name: stmt.Table}, clause.Column{Name: oldName}, clause.Column{Name: newName},
+ m.CurrentTable(stmt), clause.Column{Name: oldName}, clause.Column{Name: newName},
  ).Error
  })
  }
@@ -267,7 +267,7 @@ func (m Migrator) RenameIndex(value interface{}, oldName, newName string) error
  if idx := stmt.Schema.LookIndex(newName); idx == nil {
  if idx = stmt.Schema.LookIndex(oldName); idx != nil {
  opts := m.BuildIndexOptions(idx.Fields, stmt)
- values := []interface{}{clause.Column{Name: newName}, clause.Table{Name: stmt.Table}, opts}
+ values := []interface{}{clause.Column{Name: newName}, m.CurrentTable(stmt), opts}
 
  createIndexSQL := "CREATE "
  if idx.Class != "" {
@@ -295,7 +295,7 @@ func (m Migrator) DropTable(values ...interface{}) error {
  tx.Exec("SET FOREIGN_KEY_CHECKS = 0;")
  for i := len(values) - 1; i >= 0; i-- {
  if err := m.RunWithValue(values[i], func(stmt *gorm.Statement) error {
- return tx.Exec("DROP TABLE IF EXISTS ? CASCADE", clause.Table{Name: stmt.Table}).Error
+ return tx.Exec("DROP TABLE IF EXISTS ? CASCADE", m.CurrentTable(stmt)).Error
  }); err != nil {
  return err
  }