method 
 clone
 Related methods
- Class methods (218)
 -  
 === (<= v3.2.13)  -  
 abstract_class? (<= v3.1.0)  -  
 accessible_attributes (<= v2.3.8)  -  
 active_connection_name (<= v2.1.0)  -  
 add_conditions! 
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 add_group! 
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 add_joins! 
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 add_limit! 
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 add_lock! 
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 add_order! 
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 aggregate_mapping 
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 all (<= v2.3.8)  -  
 all_attributes_exists? 
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 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... 
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 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 
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 class_name (<= v2.3.8)  -  
 class_name_of_active_record... 
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 class_of_active_record_desc... 
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 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 
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 construct_finder_sql 
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 content_columns (<= v3.1.0)  -  
 count (<= v1.0.0)  -  
 count_by_sql (<= v3.1.0)  -  
 create (<= v3.1.0)  -  
 current_scope 
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 current_scope= 
 (<= v3.1.0)  -  
 current_scoped_methods 
 (<= v3.0.9)  -  
 decrement_counter (<= v2.3.8)  -  
 default_scope 
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 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 
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 find_last 
 (<= v2.3.8)  -  
 find_one 
 (<= v2.3.8)  -  
 find_some 
 (<= v2.3.8)  -  
 find_sti_class 
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 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... 
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 merge_conditions (<= v2.3.8)  -  
 merge_includes 
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 merge_joins 
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 method_missing 
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 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 
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 remove_connection (<= v3.2.13)  -  
 remove_stale_cached_threads! 
 (<= v2.1.0)  -  
 replace_bind_variables 
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 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 
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 timestamped_migrations (<= v3.2.13)  -  
 type_condition 
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 type_name_with_module 
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 undecorated_table_name 
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 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)
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 <=> (<= 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 
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 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... 
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 extract_callstack_for_multi... 
 (<= v3.1.0)  -  
 extract_max_param_for_multi... 
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 find_parameter_position 
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 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 
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 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 
Method deprecated or moved
This method is deprecated or moved on the latest stable version. The last existing version (v2.3.8) is shown here.
These similar methods exist in v7.1.3.2:
clone() public Returns a clone of the record that hasn’t been assigned an id yet and is treated as a new record. Note that this is a "shallow" clone: it copies the object’s attributes only, not its associations. The extent of a "deep" clone is application-specific and is therefore left to the application to implement according to its need.
 Show source   
 # File activerecord/lib/active_record/base.rb, line 2632 def clone attrs = clone_attributes(:read_attribute_before_type_cast) attrs.delete(self.class.primary_key) record = self.class.new record.send :instance_variable_set, '@attributes', attrs record end

