method

rename_column_for_alter

Ruby on Rails latest stable (v6.1.7.7) - 0 notes - Class: AbstractMysqlAdapter

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0
2.2.1
2.3.8
3.0.0
3.0.9
3.1.0
3.2.1
3.2.8
3.2.13
4.0.2
4.1.8
4.2.1
4.2.7
4.2.9
5.0.0.1
5.1.7
5.2.3
6.0.0 (0)
6.1.3.1 (0)
6.1.7.7 (0)
7.0.0 (0)
7.1.3.2 (0)
What's this?

rename_column_for_alter(table_name, column_name, new_column_name) private

No documentation

This method has no description. You can help the Ruby on Rails community by adding new notes.

# File activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb, line 698
        def rename_column_for_alter(table_name, column_name, new_column_name)
          return rename_column_sql(table_name, column_name, new_column_name) if supports_rename_column?

          column  = column_for(table_name, column_name)
          options = {
            default: column.default,
            null: column.null,
            auto_increment: column.auto_increment?,
            comment: column.comment
          }

          current_type = exec_query("SHOW COLUMNS FROM #{quote_table_name(table_name)} LIKE #{quote(column_name)}", "SCHEMA").first["Type"]
          td = create_table_definition(table_name)
          cd = td.new_column_definition(new_column_name, current_type, **options)
          schema_creation.accept(ChangeColumnDefinition.new(cd, column.name))
        end

rename_column_for_alter

Related methods

No documentation

Flowdock - Team Inbox With Chat for Software Developers