method
mysql2_connection
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v3.2.8 -
Show latest stable
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Class: ActiveRecord::Base
- 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 (0)
- 3.2.1 (0)
- 3.2.8 (0)
- 3.2.13 (0)
- 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
- 6.1.3.1
- 6.1.7.7
- 7.0.0
- 7.1.3.2
- What's this?
Related methods
- Class methods (218)
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===
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abstract_class? (<= v3.1.0)
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accessible_attributes (<= v2.3.8)
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active_connection_name (<= v2.1.0)
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add_conditions!
(<= v2.3.8)
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add_group!
(<= v2.3.8)
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add_joins!
(<= v2.3.8)
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add_limit!
(<= v2.3.8)
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add_lock!
(<= v2.3.8)
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add_order!
(<= v2.3.8)
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aggregate_mapping
(<= v3.1.0)
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all (<= v2.3.8)
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all_attributes_exists?
(<= v3.1.0)
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allow_concurrency (<= v2.3.8)
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allow_concurrency= (<= v2.3.8)
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arel_engine
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arel_table
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array_of_strings?
(<= v2.3.8)
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attr_accessible (<= v2.3.8)
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attribute_condition
(<= v2.3.8)
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attribute_method? (<= v3.1.0)
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attribute_names (<= v3.1.0)
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attributes_protected_by_def...
(<= v3.1.0)
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attr_protected (<= v2.3.8)
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attr_readonly (<= v3.1.0)
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base_class (<= v3.1.0)
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before_remove_const (<= v3.1.0)
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benchmark (<= v2.3.8)
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build_default_scope
(<= v3.1.0)
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class_name (<= v2.3.8)
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class_name_of_active_record...
(<= v2.3.8)
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class_of_active_record_desc...
(<= v3.1.0)
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clear_active_connection_name (<= v2.1.0)
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clear_active_connections!
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clear_all_cached_connections!
(<= v2.1.0)
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clear_cache! (<= v3.1.0)
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clear_connection_cache! (<= v1.0.0)
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clear_reloadable_connections! (<= v2.1.0)
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colorize_logging (<= v3.0.9)
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colorize_logging= (<= v3.0.9)
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column_defaults (<= v3.1.0)
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column_methods_hash (<= v3.1.0)
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column_names (<= v3.1.0)
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columns (<= v3.1.0)
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columns_hash (<= v3.1.0)
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compute_table_name
(<= v3.1.0)
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compute_type
(<= v3.1.0)
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configurations
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connected?
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connection
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connection= (<= v2.1.0)
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connection_config
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connection_handler
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connection_id
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connection_id=
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connection_pool
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construct_attributes_from_a...
(<= v3.0.9)
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construct_conditions_from_a...
(<= v1.1.6)
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construct_finder_arel
(<= v3.1.0)
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construct_finder_sql
(<= v2.3.8)
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content_columns (<= v3.1.0)
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count (<= v1.0.0)
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count_by_sql (<= v3.1.0)
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create (<= v3.1.0)
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current_scope
(<= v3.1.0)
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current_scope=
(<= v3.1.0)
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current_scoped_methods
(<= v3.0.9)
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decrement_counter (<= v2.3.8)
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default_scope
(<= v3.1.0)
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default_select
(<= v2.3.8)
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default_timezone
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define_attr_method
(<= v2.3.8)
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delete (<= v2.3.8)
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delete_all (<= v2.3.8)
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descends_from_active_record? (<= v3.1.0)
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destroy (<= v2.3.8)
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destroy_all (<= v2.3.8)
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determine_deprecated_finder
(<= v1.2.6)
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determine_finder
(<= v2.1.0)
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determine_instantiator
(<= v2.1.0)
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encode_quoted_value
(<= v3.1.0)
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establish_connection
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evaluate_default_scope
(<= v3.1.0)
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exists? (<= v2.3.8)
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expand_attribute_names_for_...
(<= v3.1.0)
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expand_hash_conditions_for_...
(<= v3.1.0)
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expand_id_conditions
(<= v2.3.8)
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expand_range_bind_variables
(<= v3.1.0)
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extract_attribute_names_fro...
(<= v2.1.0)
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extract_options_from_args!
(<= v1.0.0)
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find (<= v2.3.8)
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find_by_sql (<= v3.1.0)
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finder_needs_type_condition? (<= v3.1.0)
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find_every
(<= v2.3.8)
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find_from_ids
(<= v2.3.8)
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find_initial
(<= v2.3.8)
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find_last
(<= v2.3.8)
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find_one
(<= v2.3.8)
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find_some
(<= v2.3.8)
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find_sti_class
(<= v3.1.0)
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first (<= v2.3.8)
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full_table_name_prefix (<= v3.1.0)
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generated_feature_methods
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get_primary_key (<= v2.3.8)
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human_attribute_name (<= v2.3.8)
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human_name (<= v2.3.8)
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i18n_scope (<= v3.1.0)
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ignore_default_scope=
(<= v3.1.0)
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ignore_default_scope?
(<= v3.1.0)
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increment_counter (<= v2.3.8)
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inheritance_column (<= v3.1.0)
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inheritance_column= (<= v3.1.0)
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inherited
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initialize_generated_modules
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inspect
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instantiate (<= v3.1.0)
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last (<= v2.3.8)
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log_connections (<= v2.1.0)
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logger
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lookup_ancestors (<= v3.1.0)
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matches_dynamic_finder?
(<= v2.1.0)
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matches_dynamic_finder_with...
(<= v2.1.0)
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merge_conditions (<= v2.3.8)
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merge_includes
(<= v2.3.8)
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merge_joins
(<= v2.3.8)
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method_missing
(<= v3.1.0)
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mysql2_connection
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mysql_connection
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new
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parse_config!
(<= v1.2.6)
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parse_sqlite_config!
(<= v2.3.8)
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pluralize_table_names (<= v3.1.0)
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postgresql_connection
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primary_key (<= v2.3.8)
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primary_key_prefix_type (<= v3.1.0)
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protected_attributes (<= v2.3.8)
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quote_bound_value
(<= v3.1.0)
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quoted_table_name (<= v3.1.0)
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quote_value (<= v3.1.0)
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raise_if_bind_arity_mismatch
(<= v3.1.0)
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read_methods (<= v1.0.0)
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readonly_attributes (<= v3.1.0)
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relation
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remove_connection
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remove_stale_cached_threads!
(<= v2.1.0)
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replace_bind_variables
(<= v3.1.0)
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replace_named_bind_variables
(<= v3.1.0)
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require_mysql (<= v2.1.0)
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reset_column_information (<= v3.1.0)
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reset_column_information_an... (<= v3.0.9)
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reset_counters (<= v2.3.8)
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reset_primary_key (<= v2.3.8)
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reset_scoped_methods
(<= v3.0.9)
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reset_sequence_name (<= v3.1.0)
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reset_subclasses (<= v3.0.9)
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reset_table_name (<= v3.1.0)
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respond_to? (<= v3.1.0)
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retrieve_connection
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reverse_sql_order
(<= v2.3.8)
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safe_to_array
(<= v2.3.8)
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sanitize (<= v3.1.0)
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sanitize_conditions
(<= v3.1.0)
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sanitize_sql
(<= v3.1.0)
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sanitize_sql_array
(<= v3.1.0)
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sanitize_sql_for_assignment
(<= v3.1.0)
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sanitize_sql_for_conditions
(<= v3.1.0)
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sanitize_sql_hash
(<= v3.1.0)
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sanitize_sql_hash_for_assig...
(<= v3.1.0)
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sanitize_sql_hash_for_condi...
(<= v3.1.0)
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schema_format
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scope
(<= v2.3.8)
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scoped?
(<= v2.3.8)
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scoped_methods (<= v3.0.9)
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scoped_methods=
(<= v1.0.0)
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self_and_descendants_from_a... (<= v2.3.8)
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self_and_descendents_from_a... (<= v2.2.1)
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sequence_name (<= v3.1.0)
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sequence_name= (<= v3.1.0)
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serialize (<= v3.1.0)
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serialized_attributes (<= v3.0.9)
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set_inheritance_column (<= v3.1.0)
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set_locking_column (<= v1.1.6)
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set_primary_key (<= v2.3.8)
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set_readonly_option!
(<= v2.3.8)
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set_sequence_name (<= v3.1.0)
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set_table_name (<= v3.1.0)
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silence (<= v2.3.8)
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single_threaded_active_conn... (<= v2.1.0)
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single_threaded_scoped_methods
(<= v2.1.0)
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sqlite3_connection
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sqlite_connection (<= v2.3.8)
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sti_name (<= v3.1.0)
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subclasses (<= v3.0.9)
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symbolized_base_class (<= v3.1.0)
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symbolized_sti_name (<= v3.1.0)
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table_exists? (<= v3.1.0)
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table_name (<= v3.1.0)
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table_name= (<= v3.1.0)
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table_name_prefix (<= v3.1.0)
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table_name_suffix (<= v3.1.0)
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threaded_connections (<= v1.0.0)
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threaded_connections= (<= v1.0.0)
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thread_safe_active_connections (<= v2.1.0)
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thread_safe_scoped_methods
(<= v2.1.0)
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timestamped_migrations
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type_condition
(<= v3.1.0)
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type_name_with_module
(<= v2.3.8)
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undecorated_table_name
(<= v3.1.0)
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unscoped (<= v3.1.0)
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update (<= v2.3.8)
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update_all (<= v2.3.8)
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update_counters (<= v2.3.8)
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validate_find_options
(<= v2.3.8)
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verification_timeout (<= v2.3.8)
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verification_timeout= (<= v2.3.8)
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verify_active_connections! (<= v2.1.0)
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with_exclusive_scope
(<= v3.1.0)
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with_scope
(<= v3.1.0)
- Instance methods (107)
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<=>
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==
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[] (<= v3.0.9)
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[]= (<= v3.0.9)
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arel_attributes_values
(<= v3.1.0)
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assign_attributes (<= v3.1.0)
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assign_multiparameter_attri...
(<= v3.1.0)
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attribute_for_inspect (<= v3.1.0)
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attribute_names (<= v3.1.0)
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attribute_present? (<= v3.1.0)
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attributes (<= v3.1.0)
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attributes= (<= v3.1.0)
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attributes_before_type_cast (<= v2.3.8)
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attributes_from_column_defi...
(<= v2.3.8)
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attributes_protected_by_def...
(<= v2.3.8)
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attributes_with_quotes
(<= v2.3.8)
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becomes (<= v2.3.8)
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cache_key (<= v3.1.0)
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clear_timestamp_attributes
(<= v3.1.0)
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clone (<= v2.3.8)
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clone_attributes
(<= v3.1.0)
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clone_attribute_value
(<= v3.1.0)
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column_for_attribute (<= v3.1.0)
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comma_pair_list
(<= v3.1.0)
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connection
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convert_number_column_value
(<= v3.1.0)
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create
(<= v2.3.8)
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create_or_update
(<= v2.3.8)
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decrement (<= v2.3.8)
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decrement! (<= v2.3.8)
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define_question_method
(<= v1.2.6)
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define_read_method
(<= v1.2.6)
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define_read_method_for_seri...
(<= v1.2.6)
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define_read_methods
(<= v1.2.6)
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delete (<= v2.3.8)
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destroy (<= v2.3.8)
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destroyed? (<= v2.3.8)
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dup
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encode_with
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ensure_proper_type
(<= v3.1.0)
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eql?
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evaluate_read_method
(<= v1.2.6)
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execute_callstack_for_multi...
(<= v3.1.0)
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extract_callstack_for_multi...
(<= v3.1.0)
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extract_max_param_for_multi...
(<= v3.1.0)
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find_parameter_position
(<= v3.1.0)
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freeze
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frozen?
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has_attribute? (<= v3.1.0)
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hash
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id (<= v2.3.8)
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id= (<= v2.3.8)
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id_before_type_cast (<= v2.3.8)
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increment (<= v2.3.8)
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increment! (<= v2.3.8)
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initialize_copy (<= v3.0.9)
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initialize_dup
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init_with
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inspect
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instantiate_time_object
(<= v3.1.0)
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interpolate_and_sanitize_sql
(<= v3.0.9)
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interpolate_sanitized_sql
(<= v3.0.9)
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interpolate_sql
(<= v3.0.0)
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log_protected_attribute_rem...
(<= v2.3.8)
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mass_assignment_options
(<= v3.1.0)
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mass_assignment_role
(<= v3.1.0)
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method_missing
(<= v1.2.6)
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new_record? (<= v2.3.8)
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object_from_yaml
(<= v3.0.9)
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populate_with_current_scope...
(<= v3.1.0)
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query_attribute
(<= v1.2.6)
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quote
(<= v1.2.6)
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quote_columns
(<= v3.1.0)
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quoted_column_names
(<= v2.3.8)
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quoted_comma_pair_list
(<= v3.1.0)
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quoted_id (<= v3.1.0)
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quote_value
(<= v3.1.0)
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read_attribute
(<= v1.2.6)
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read_attribute_before_type_...
(<= v1.2.6)
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read_date_parameter_value
(<= v3.1.0)
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readonly!
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readonly?
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read_other_parameter_value
(<= v3.1.0)
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read_time_parameter_value
(<= v3.1.0)
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read_value_from_parameter
(<= v3.1.0)
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reload (<= v2.3.8)
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remove_attributes_protected...
(<= v2.3.8)
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remove_readonly_attributes
(<= v2.3.8)
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respond_to? (<= v1.2.6)
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save (<= v2.3.8)
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save! (<= v2.3.8)
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set_serialized_attributes
(<= v3.1.0)
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to_ary
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toggle (<= v2.3.8)
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toggle! (<= v2.3.8)
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to_param (<= v3.1.0)
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to_xml (<= v1.1.6)
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to_yaml
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type_cast_attribute_value
(<= v3.1.0)
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unserializable_attribute?
(<= v1.2.6)
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unserialize_attribute
(<= v1.2.6)
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update
(<= v2.3.8)
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update_attribute (<= v2.3.8)
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update_attributes (<= v2.3.8)
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update_attributes! (<= v2.3.8)
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write_attribute
(<= v1.2.6)
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yaml_initialize
= private
= protected
mysql2_connection(config)
public
Establishes a connection to the database that’s used by all Active Record objects.
Show source
# File activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb, line 9 def self.mysql2_connection(config) config[:username] = 'root' if config[:username].nil? if Mysql2::Client.const_defined? :FOUND_ROWS config[:flags] = Mysql2::Client::FOUND_ROWS end client = Mysql2::Client.new(config.symbolize_keys) options = [config[:host], config[:username], config[:password], config[:database], config[:port], config[:socket], 0] ConnectionAdapters::Mysql2Adapter.new(client, logger, options, config) end