Mysql2Adapter

• Class methods (5)
• database_exists? (>= v6.0.0)
• initialize_type_map (>= v7.1.3.2)
• new
• new_client (>= v6.1.3.1)
• visitor_for (<= v3.1.0)
• Instance methods (91)
• active?
• adapter_name (<= v3.1.0)
• add_column (<= v3.1.0)
• add_column_position! (<= v3.1.0)
• add_limit_offset! (<= v3.1.0)
• begin_db_transaction (<= v3.1.0)
• case_sensitive_equality_ope... (<= v3.1.0)
• case_sensitive_modifier (<= v3.1.0)
• change_column (<= v3.1.0)
• change_column_default (<= v3.1.0)
• change_column_null (<= v3.1.0)
• charset (<= v3.1.0)
• collation (<= v3.1.0)
• column_for (<= v3.1.0)
• columns (<= v3.1.0)
• commit_db_transaction (<= v3.1.0)
• configure_connection
• connect
• create
• create_database (<= v3.1.0)
• create_savepoint (<= v3.1.0)
• create_table (<= v3.1.0)
• current_database (<= v3.1.0)
• default_prepared_statements (>= v7.1.3.2)
• disable_referential_integrity (<= v3.1.0)
• discard! (>= v5.2.3)
• disconnect!
• drop_database (<= v3.1.0)
• drop_table (<= v3.1.0)
• each_hash
• error_number
• exec_delete
• exec_insert
• exec_query
• exec_update
• execute
• exec_without_stmt
• explain
• full_version
• get_full_version (>= v6.0.0)
• indexes (<= v3.1.0)
• initialize_schema_migration...
• insert_sql
• join_to_update (<= v3.1.0)
• last_inserted_id
• limited_update_conditions (<= v3.1.0)
• native_database_types (<= v3.1.0)
• new_column (<= v4.1.8)
• pk_and_sequence_for (<= v3.1.0)
• primary_key (<= v3.1.0)
• quote (<= v3.1.0)
• quote_column_name (<= v3.1.0)
• quoted_columns_for_index (<= v3.1.0)
• quoted_date
• quoted_false (<= v3.1.0)
• quoted_true (<= v3.1.0)
• quote_string
• quote_table_name (<= v3.1.0)
• reconnect (>= v7.1.3.2)
• reconnect!
• recreate_database (<= v3.1.0)
• release_savepoint (<= v3.1.0)
• rename_column (<= v3.1.0)
• rename_table (<= v3.1.0)
• requires_reloading? (<= v3.1.0)
• reset!
• rollback_db_transaction (<= v3.1.0)
• rollback_to_savepoint (<= v3.1.0)
• savepoint_errors_invalidate... (>= v7.1.3.2)
• select (<= v4.1.8)
• select_rows
• set_field_encoding
• show_variable (<= v3.1.0)
• structure_dump (<= v3.1.0)
• substitute_at (<= v3.2.1)
• supports_comments? (>= v5.0.0.1)
• supports_comments_in_create? (>= v5.0.0.1)
• supports_explain?
• supports_json? (>= v5.0.0.1)
• supports_lazy_transactions? (>= v6.0.0)
• supports_migrations? (<= v3.1.0)
• supports_primary_key? (<= v3.1.0)
• supports_savepoints? (>= v3.1.0)
• supports_views? (<= v3.1.0)
• table_exists? (<= v3.1.0)
• tables (<= v3.1.0)
• text_type? (>= v7.1.3.2)
• translate_exception (>= v3.1.0)
• type_to_sql (<= v3.1.0)
• update_sql (<= v3.1.0)
• version (<= v4.0.2)

= private
= protected

Constants

ADAPTER_NAME = 'Mysql2'.freeze

MAX_INDEX_LENGTH_FOR_UTF8MB4 = 191

Attributes

activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb