has_attribute?

• Class methods (218)
• === (<= v3.2.13)
• abstract_class? (<= v3.1.0)
• accessible_attributes (<= v2.3.8)
• active_connection_name (<= v2.1.0)
• add_conditions! (<= v2.3.8)
• add_group! (<= v2.3.8)
• add_joins! (<= v2.3.8)
• add_limit! (<= v2.3.8)
• add_lock! (<= v2.3.8)
• add_order! (<= v2.3.8)
• aggregate_mapping (<= v3.1.0)
• all (<= v2.3.8)
• all_attributes_exists? (<= v3.1.0)
• allow_concurrency (<= v2.3.8)
• allow_concurrency= (<= v2.3.8)
• arel_engine (<= v3.2.13)
• arel_table (<= v3.2.13)
• array_of_strings? (<= v2.3.8)
• attr_accessible (<= v2.3.8)
• attribute_condition (<= v2.3.8)
• attribute_method? (<= v3.1.0)
• attribute_names (<= v3.1.0)
• attributes_protected_by_def... (<= v3.1.0)
• attr_protected (<= v2.3.8)
• attr_readonly (<= v3.1.0)
• base_class (<= v3.1.0)
• before_remove_const (<= v3.1.0)
• benchmark (<= v2.3.8)
• build_default_scope (<= v3.1.0)
• class_name (<= v2.3.8)
• class_name_of_active_record... (<= v2.3.8)
• class_of_active_record_desc... (<= v3.1.0)
• clear_active_connection_name (<= v2.1.0)
• clear_active_connections! (<= v3.2.13)
• clear_all_cached_connections! (<= v2.1.0)
• clear_cache! (<= v3.1.0)
• clear_connection_cache! (<= v1.0.0)
• clear_reloadable_connections! (<= v2.1.0)
• colorize_logging (<= v3.0.9)
• colorize_logging= (<= v3.0.9)
• column_defaults (<= v3.1.0)
• column_methods_hash (<= v3.1.0)
• column_names (<= v3.1.0)
• columns (<= v3.1.0)
• columns_hash (<= v3.1.0)
• compute_table_name (<= v3.1.0)
• compute_type (<= v3.1.0)
• configurations (<= v3.2.13)
• connected? (<= v3.2.13)
• connection (<= v3.2.13)
• connection= (<= v2.1.0)
• connection_config (<= v3.2.13)
• connection_handler (<= v3.2.13)
• connection_id (<= v3.2.13)
• connection_id= (<= v3.2.13)
• connection_pool (<= v3.2.13)
• construct_attributes_from_a... (<= v3.0.9)
• construct_conditions_from_a... (<= v1.1.6)
• construct_finder_arel (<= v3.1.0)
• construct_finder_sql (<= v2.3.8)
• content_columns (<= v3.1.0)
• count (<= v1.0.0)
• count_by_sql (<= v3.1.0)
• create (<= v3.1.0)
• current_scope (<= v3.1.0)
• current_scope= (<= v3.1.0)
• current_scoped_methods (<= v3.0.9)
• decrement_counter (<= v2.3.8)
• default_scope (<= v3.1.0)
• default_select (<= v2.3.8)
• default_timezone (<= v3.2.13)
• define_attr_method (<= v2.3.8)
• delete (<= v2.3.8)
• delete_all (<= v2.3.8)
• descends_from_active_record? (<= v3.1.0)
• destroy (<= v2.3.8)
• destroy_all (<= v2.3.8)
• determine_deprecated_finder (<= v1.2.6)
• determine_finder (<= v2.1.0)
• determine_instantiator (<= v2.1.0)
• encode_quoted_value (<= v3.1.0)
• establish_connection (<= v3.2.13)
• evaluate_default_scope (<= v3.1.0)
• exists? (<= v2.3.8)
• expand_attribute_names_for_... (<= v3.1.0)
• expand_hash_conditions_for_... (<= v3.1.0)
• expand_id_conditions (<= v2.3.8)
• expand_range_bind_variables (<= v3.1.0)
• extract_attribute_names_fro... (<= v2.1.0)
• extract_options_from_args! (<= v1.0.0)
• find (<= v2.3.8)
• find_by_sql (<= v3.1.0)
• finder_needs_type_condition? (<= v3.1.0)
• find_every (<= v2.3.8)
• find_from_ids (<= v2.3.8)
• find_initial (<= v2.3.8)
• find_last (<= v2.3.8)
• find_one (<= v2.3.8)
• find_some (<= v2.3.8)
• find_sti_class (<= v3.1.0)
• first (<= v2.3.8)
• full_table_name_prefix (<= v3.1.0)
• generated_feature_methods (<= v3.2.13)
• get_primary_key (<= v2.3.8)
• human_attribute_name (<= v2.3.8)
• human_name (<= v2.3.8)
• i18n_scope (<= v3.1.0)
• ignore_default_scope= (<= v3.1.0)
• ignore_default_scope? (<= v3.1.0)
• increment_counter (<= v2.3.8)
• inheritance_column (<= v3.1.0)
• inheritance_column= (<= v3.1.0)
• inherited (<= v3.2.13)
• initialize_generated_modules (<= v3.2.13)
• inspect (<= v3.2.13)
• instantiate (<= v3.1.0)
• last (<= v2.3.8)
• log_connections (<= v2.1.0)
• logger (<= v3.2.13)
• lookup_ancestors (<= v3.1.0)
• matches_dynamic_finder? (<= v2.1.0)
• matches_dynamic_finder_with... (<= v2.1.0)
• merge_conditions (<= v2.3.8)
• merge_includes (<= v2.3.8)
• merge_joins (<= v2.3.8)
• method_missing (<= v3.1.0)
• mysql2_connection (<= v3.2.13)
• mysql_connection (<= v3.2.13)
• new (<= v3.2.13)
• parse_config! (<= v1.2.6)
• parse_sqlite_config! (<= v2.3.8)
• pluralize_table_names (<= v3.1.0)
• postgresql_connection (<= v3.2.13)
• primary_key (<= v2.3.8)
• primary_key_prefix_type (<= v3.1.0)
• protected_attributes (<= v2.3.8)
• quote_bound_value (<= v3.1.0)
• quoted_table_name (<= v3.1.0)
• quote_value (<= v3.1.0)
• raise_if_bind_arity_mismatch (<= v3.1.0)
• read_methods (<= v1.0.0)
• readonly_attributes (<= v3.1.0)
• relation (<= v3.2.13)
• remove_connection (<= v3.2.13)
• remove_stale_cached_threads! (<= v2.1.0)
• replace_bind_variables (<= v3.1.0)
• replace_named_bind_variables (<= v3.1.0)
• require_mysql (<= v2.1.0)
• reset_column_information (<= v3.1.0)
• reset_column_information_an... (<= v3.0.9)
• reset_counters (<= v2.3.8)
• reset_primary_key (<= v2.3.8)
• reset_scoped_methods (<= v3.0.9)
• reset_sequence_name (<= v3.1.0)
• reset_subclasses (<= v3.0.9)
• reset_table_name (<= v3.1.0)
• respond_to? (<= v3.1.0)
• retrieve_connection (<= v3.2.13)
• reverse_sql_order (<= v2.3.8)
• safe_to_array (<= v2.3.8)
• sanitize (<= v3.1.0)
• sanitize_conditions (<= v3.1.0)
• sanitize_sql (<= v3.1.0)
• sanitize_sql_array (<= v3.1.0)
• sanitize_sql_for_assignment (<= v3.1.0)
• sanitize_sql_for_conditions (<= v3.1.0)
• sanitize_sql_hash (<= v3.1.0)
• sanitize_sql_hash_for_assig... (<= v3.1.0)
• sanitize_sql_hash_for_condi... (<= v3.1.0)
• schema_format (<= v3.2.13)
• scope (<= v2.3.8)
• scoped? (<= v2.3.8)
• scoped_methods (<= v3.0.9)
• scoped_methods= (<= v1.0.0)
• self_and_descendants_from_a... (<= v2.3.8)
• self_and_descendents_from_a... (<= v2.2.1)
• sequence_name (<= v3.1.0)
• sequence_name= (<= v3.1.0)
• serialize (<= v3.1.0)
• serialized_attributes (<= v3.0.9)
• set_inheritance_column (<= v3.1.0)
• set_locking_column (<= v1.1.6)
• set_primary_key (<= v2.3.8)
• set_readonly_option! (<= v2.3.8)
• set_sequence_name (<= v3.1.0)
• set_table_name (<= v3.1.0)
• silence (<= v2.3.8)
• single_threaded_active_conn... (<= v2.1.0)
• single_threaded_scoped_methods (<= v2.1.0)
• sqlite3_connection (<= v3.2.13)
• sqlite_connection (<= v2.3.8)
• sti_name (<= v3.1.0)
• subclasses (<= v3.0.9)
• symbolized_base_class (<= v3.1.0)
• symbolized_sti_name (<= v3.1.0)
• table_exists? (<= v3.1.0)
• table_name (<= v3.1.0)
• table_name= (<= v3.1.0)
• table_name_prefix (<= v3.1.0)
• table_name_suffix (<= v3.1.0)
• threaded_connections (<= v1.0.0)
• threaded_connections= (<= v1.0.0)
• thread_safe_active_connections (<= v2.1.0)
• thread_safe_scoped_methods (<= v2.1.0)
• timestamped_migrations (<= v3.2.13)
• type_condition (<= v3.1.0)
• type_name_with_module (<= v2.3.8)
• undecorated_table_name (<= v3.1.0)
• unscoped (<= v3.1.0)
• update (<= v2.3.8)
• update_all (<= v2.3.8)
• update_counters (<= v2.3.8)
• validate_find_options (<= v2.3.8)
• verification_timeout (<= v2.3.8)
• verification_timeout= (<= v2.3.8)
• verify_active_connections! (<= v2.1.0)
• with_exclusive_scope (<= v3.1.0)
• with_scope (<= v3.1.0)
• Instance methods (107)
• <=> (<= v3.2.13)
• == (<= v3.2.13)
• [] (<= v3.0.9)
• []= (<= v3.0.9)
• arel_attributes_values (<= v3.1.0)
• assign_attributes (<= v3.1.0)
• assign_multiparameter_attri... (<= v3.1.0)
• attribute_for_inspect (<= v3.1.0)
• attribute_names (<= v3.1.0)
• attribute_present? (<= v3.1.0)
• attributes (<= v3.1.0)
• attributes= (<= v3.1.0)
• attributes_before_type_cast (<= v2.3.8)
• attributes_from_column_defi... (<= v2.3.8)
• attributes_protected_by_def... (<= v2.3.8)
• attributes_with_quotes (<= v2.3.8)
• becomes (<= v2.3.8)
• cache_key (<= v3.1.0)
• clear_timestamp_attributes (<= v3.1.0)
• clone (<= v2.3.8)
• clone_attributes (<= v3.1.0)
• clone_attribute_value (<= v3.1.0)
• column_for_attribute (<= v3.1.0)
• comma_pair_list (<= v3.1.0)
• connection (<= v3.2.13)
• convert_number_column_value (<= v3.1.0)
• create (<= v2.3.8)
• create_or_update (<= v2.3.8)
• decrement (<= v2.3.8)
• decrement! (<= v2.3.8)
• define_question_method (<= v1.2.6)
• define_read_method (<= v1.2.6)
• define_read_method_for_seri... (<= v1.2.6)
• define_read_methods (<= v1.2.6)
• delete (<= v2.3.8)
• destroy (<= v2.3.8)
• destroyed? (<= v2.3.8)
• dup (<= v3.2.13)
• encode_with (<= v3.2.13)
• ensure_proper_type (<= v3.1.0)
• eql? (<= v3.2.13)
• evaluate_read_method (<= v1.2.6)
• execute_callstack_for_multi... (<= v3.1.0)
• extract_callstack_for_multi... (<= v3.1.0)
• extract_max_param_for_multi... (<= v3.1.0)
• find_parameter_position (<= v3.1.0)
• freeze (<= v3.2.13)
• frozen? (<= v3.2.13)
• has_attribute? (<= v3.1.0)
• hash (<= v3.2.13)
• id (<= v2.3.8)
• id= (<= v2.3.8)
• id_before_type_cast (<= v2.3.8)
• increment (<= v2.3.8)
• increment! (<= v2.3.8)
• initialize_copy (<= v3.0.9)
• initialize_dup (<= v3.2.13)
• init_with (<= v3.2.13)
• inspect (<= v3.2.13)
• instantiate_time_object (<= v3.1.0)
• interpolate_and_sanitize_sql (<= v3.0.9)
• interpolate_sanitized_sql (<= v3.0.9)
• interpolate_sql (<= v3.0.0)
• log_protected_attribute_rem... (<= v2.3.8)
• mass_assignment_options (<= v3.1.0)
• mass_assignment_role (<= v3.1.0)
• method_missing (<= v1.2.6)
• new_record? (<= v2.3.8)
• object_from_yaml (<= v3.0.9)
• populate_with_current_scope... (<= v3.1.0)
• query_attribute (<= v1.2.6)
• quote (<= v1.2.6)
• quote_columns (<= v3.1.0)
• quoted_column_names (<= v2.3.8)
• quoted_comma_pair_list (<= v3.1.0)
• quoted_id (<= v3.1.0)
• quote_value (<= v3.1.0)
• read_attribute (<= v1.2.6)
• read_attribute_before_type_... (<= v1.2.6)
• read_date_parameter_value (<= v3.1.0)
• readonly! (<= v3.2.13)
• readonly? (<= v3.2.13)
• read_other_parameter_value (<= v3.1.0)
• read_time_parameter_value (<= v3.1.0)
• read_value_from_parameter (<= v3.1.0)
• reload (<= v2.3.8)
• remove_attributes_protected... (<= v2.3.8)
• remove_readonly_attributes (<= v2.3.8)
• respond_to? (<= v1.2.6)
• save (<= v2.3.8)
• save! (<= v2.3.8)
• set_serialized_attributes (<= v3.1.0)
• to_ary (<= v3.2.13)
• toggle (<= v2.3.8)
• toggle! (<= v2.3.8)
• to_param (<= v3.1.0)
• to_xml (<= v1.1.6)
• to_yaml (<= v3.2.13)
• type_cast_attribute_value (<= v3.1.0)
• unserializable_attribute? (<= v1.2.6)
• unserialize_attribute (<= v1.2.6)
• update (<= v2.3.8)
• update_attribute (<= v2.3.8)
• update_attributes (<= v2.3.8)
• update_attributes! (<= v2.3.8)
• write_attribute (<= v1.2.6)
• yaml_initialize (<= v3.2.13)

= private
= protected