diff options
Diffstat (limited to 'activerecord/lib/active_record')
4 files changed, 139 insertions, 55 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb index 36048bee03..d663b59444 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -356,35 +356,33 @@ module ActiveRecord # Inserts a set of fixtures into the table. Overridden in adapters that require # something beyond a simple insert (eg. Oracle). def insert_fixtures(fixtures, table_name) + ActiveSupport::Deprecation.warn(<<-MSG.squish) + `insert_fixtures` is deprecated and will be removed in the next version of Rails. + Consider using `insert_fixtures_set` for performance improvement. + MSG return if fixtures.empty? - columns = schema_cache.columns_hash(table_name) + execute(build_fixture_sql(fixtures, table_name), "Fixtures Insert") + end - values = fixtures.map do |fixture| - fixture = fixture.stringify_keys + def insert_fixtures_set(fixture_set, tables_to_delete = []) + fixture_inserts = fixture_set.map do |table_name, fixtures| + next if fixtures.empty? - unknown_columns = fixture.keys - columns.keys - if unknown_columns.any? - raise Fixture::FixtureError, %(table "#{table_name}" has no columns named #{unknown_columns.map(&:inspect).join(', ')}.) - end + build_fixture_sql(fixtures, table_name) + end.compact - columns.map do |name, column| - if fixture.key?(name) - type = lookup_cast_type_from_column(column) - bind = Relation::QueryAttribute.new(name, fixture[name], type) - with_yaml_fallback(bind.value_for_database) - else - Arel.sql("DEFAULT") + table_deletes = tables_to_delete.map { |table| "DELETE FROM #{quote_table_name table}".dup } + total_sql = Array.wrap(combine_multi_statements(table_deletes + fixture_inserts)) + + disable_referential_integrity do + transaction(requires_new: true) do + total_sql.each do |sql| + execute sql, "Fixtures Load" + yield if block_given? end end end - - table = Arel::Table.new(table_name) - manager = Arel::InsertManager.new - manager.into(table) - columns.each_key { |column| manager.columns << table[column] } - manager.values = manager.create_values_list(values) - execute manager.to_sql, "Fixtures Insert" end def empty_insert_statement_value @@ -417,6 +415,41 @@ module ActiveRecord private + def build_fixture_sql(fixtures, table_name) + columns = schema_cache.columns_hash(table_name) + + values = fixtures.map do |fixture| + fixture = fixture.stringify_keys + + unknown_columns = fixture.keys - columns.keys + if unknown_columns.any? + raise Fixture::FixtureError, %(table "#{table_name}" has no columns named #{unknown_columns.map(&:inspect).join(', ')}.) + end + + columns.map do |name, column| + if fixture.key?(name) + type = lookup_cast_type_from_column(column) + bind = Relation::QueryAttribute.new(name, fixture[name], type) + with_yaml_fallback(bind.value_for_database) + else + Arel.sql("DEFAULT") + end + end + end + + table = Arel::Table.new(table_name) + manager = Arel::InsertManager.new + manager.into(table) + columns.each_key { |column| manager.columns << table[column] } + manager.values = manager.create_values_list(values) + + manager.to_sql + end + + def combine_multi_statements(total_sql) + total_sql.join(";\n") + end + # Returns a subquery for the given key using the join information. def subquery_for(key, select) subselect = select.clone diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb index b394a8969f..d1a3b6de40 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -530,8 +530,56 @@ module ActiveRecord without_sql_mode("NO_AUTO_VALUE_ON_ZERO") { super } end + def insert_fixtures_set(fixture_set, tables_to_delete = []) + iterate_over_results = -> { while raw_connection.next_result; end; } + + with_multi_statements do + without_sql_mode("NO_AUTO_VALUE_ON_ZERO") do + super(fixture_set, tables_to_delete, &iterate_over_results) + end + end + end + private + def combine_multi_statements(total_sql) + total_sql.each_with_object([]) do |sql, total_sql_chunks| + previous_packet = total_sql_chunks.last + sql << ";\n" + if max_allowed_packet_reached?(sql, previous_packet) || total_sql_chunks.empty? + total_sql_chunks << sql + else + previous_packet << sql + end + end + end + + def max_allowed_packet_reached?(current_packet, previous_packet) + if current_packet.bytesize > max_allowed_packet + raise ActiveRecordError, "Fixtures set is too large #{current_packet.bytesize}. Consider increasing the max_allowed_packet variable." + elsif previous_packet.nil? + false + else + (current_packet.bytesize + previous_packet.bytesize) > max_allowed_packet + end + end + + def max_allowed_packet + bytes_margin = 2 + @max_allowed_packet ||= (show_variable("max_allowed_packet") - bytes_margin) + end + + def with_multi_statements + previous_flags = @config[:flags] + @config[:flags] = Mysql2::Client::MULTI_STATEMENTS + reconnect! + + yield + ensure + @config[:flags] = previous_flags + reconnect! + end + def without_sql_mode(mode) result = execute("SELECT @@SESSION.sql_mode") current_mode = result.first[0] diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index 9c69d8f13b..c66cada07a 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -372,6 +372,18 @@ module ActiveRecord end end + def insert_fixtures_set(fixture_set, tables_to_delete = []) + disable_referential_integrity do + transaction(requires_new: true) do + tables_to_delete.each { |table| delete "DELETE FROM #{quote_table_name(table)}", "Fixture Delete" } + + fixture_set.each do |table_name, rows| + rows.each { |row| insert_fixture(row, table_name) } + end + end + end + end + private def initialize_type_map(m = type_map) super diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb index 86f13d75d5..896d51c0fe 100644 --- a/activerecord/lib/active_record/fixtures.rb +++ b/activerecord/lib/active_record/fixtures.rb @@ -540,47 +540,38 @@ module ActiveRecord } unless files_to_read.empty? - connection.disable_referential_integrity do - fixtures_map = {} - - fixture_sets = files_to_read.map do |fs_name| - klass = class_names[fs_name] - conn = klass ? klass.connection : connection - fixtures_map[fs_name] = new( # ActiveRecord::FixtureSet.new - conn, - fs_name, - klass, - ::File.join(fixtures_directory, fs_name)) - end - - update_all_loaded_fixtures fixtures_map - - connection.transaction(requires_new: true) do - deleted_tables = Hash.new { |h, k| h[k] = Set.new } - fixture_sets.each do |fs| - conn = fs.model_class.respond_to?(:connection) ? fs.model_class.connection : connection - table_rows = fs.table_rows + fixtures_map = {} + + fixture_sets = files_to_read.map do |fs_name| + klass = class_names[fs_name] + conn = klass ? klass.connection : connection + fixtures_map[fs_name] = new( # ActiveRecord::FixtureSet.new + conn, + fs_name, + klass, + ::File.join(fixtures_directory, fs_name)) + end - table_rows.each_key do |table| - unless deleted_tables[conn].include? table - conn.delete "DELETE FROM #{conn.quote_table_name(table)}", "Fixture Delete" - end - deleted_tables[conn] << table - end + update_all_loaded_fixtures fixtures_map + fixture_sets_by_connection = fixture_sets.group_by { |fs| fs.model_class ? fs.model_class.connection : connection } - table_rows.each do |fixture_set_name, rows| - conn.insert_fixtures(rows, fixture_set_name) - end + fixture_sets_by_connection.each do |conn, set| + table_rows_for_connection = Hash.new { |h, k| h[k] = [] } - # Cap primary key sequences to max(pk). - if conn.respond_to?(:reset_pk_sequence!) - conn.reset_pk_sequence!(fs.table_name) - end + set.each do |fs| + fs.table_rows.each do |table, rows| + table_rows_for_connection[table].unshift(*rows) end end + conn.insert_fixtures_set(table_rows_for_connection, table_rows_for_connection.keys) - cache_fixtures(connection, fixtures_map) + # Cap primary key sequences to max(pk). + if conn.respond_to?(:reset_pk_sequence!) + set.each { |fs| conn.reset_pk_sequence!(fs.table_name) } + end end + + cache_fixtures(connection, fixtures_map) end cached_fixtures(connection, fixture_set_names) end |