diff options
Diffstat (limited to 'activerecord/lib/active_record')
46 files changed, 277 insertions, 278 deletions
diff --git a/activerecord/lib/active_record/associations/alias_tracker.rb b/activerecord/lib/active_record/associations/alias_tracker.rb index 4a5c821607..104de4f69d 100644 --- a/activerecord/lib/active_record/associations/alias_tracker.rb +++ b/activerecord/lib/active_record/associations/alias_tracker.rb @@ -4,21 +4,21 @@ module ActiveRecord module Associations # Keeps track of table aliases for ActiveRecord::Associations::JoinDependency class AliasTracker # :nodoc: - def self.create(connection, initial_table, type_caster) + def self.create(connection, initial_table) aliases = Hash.new(0) aliases[initial_table] = 1 - new connection, aliases, type_caster + new(connection, aliases) end - def self.create_with_joins(connection, initial_table, joins, type_caster) + def self.create_with_joins(connection, initial_table, joins) if joins.empty? - create(connection, initial_table, type_caster) + create(connection, initial_table) else aliases = Hash.new { |h, k| h[k] = initial_count_for(connection, k, joins) } aliases[initial_table] = 1 - new connection, aliases, type_caster + new(connection, aliases) end end @@ -51,17 +51,16 @@ module ActiveRecord end # table_joins is an array of arel joins which might conflict with the aliases we assign here - def initialize(connection, aliases, type_caster) + def initialize(connection, aliases) @aliases = aliases @connection = connection - @type_caster = type_caster end - def aliased_table_for(table_name, aliased_name) + def aliased_table_for(table_name, aliased_name, type_caster) if aliases[table_name].zero? # If it's zero, we can have our table_name aliases[table_name] = 1 - Arel::Table.new(table_name, type_caster: @type_caster) + Arel::Table.new(table_name, type_caster: type_caster) else # Otherwise, we need to use an alias aliased_name = @connection.table_alias_for(aliased_name) @@ -74,7 +73,7 @@ module ActiveRecord else aliased_name end - Arel::Table.new(table_name, type_caster: @type_caster).alias(table_alias) + Arel::Table.new(table_name, type_caster: type_caster).alias(table_alias) end end diff --git a/activerecord/lib/active_record/associations/association.rb b/activerecord/lib/active_record/associations/association.rb index 5c45187d8f..1138ae3462 100644 --- a/activerecord/lib/active_record/associations/association.rb +++ b/activerecord/lib/active_record/associations/association.rb @@ -30,14 +30,6 @@ module ActiveRecord reset_scope end - # Returns the name of the table of the associated class: - # - # post.comments.aliased_table_name # => "comments" - # - def aliased_table_name - klass.table_name - end - # Resets the \loaded flag to +false+ and sets the \target to +nil+. def reset @loaded = false @@ -94,7 +86,7 @@ module ActiveRecord # actually gets built. def association_scope if klass - @association_scope ||= AssociationScope.scope(self, klass.connection) + @association_scope ||= AssociationScope.scope(self) end end diff --git a/activerecord/lib/active_record/associations/association_scope.rb b/activerecord/lib/active_record/associations/association_scope.rb index 1593b94f0c..6ef225b725 100644 --- a/activerecord/lib/active_record/associations/association_scope.rb +++ b/activerecord/lib/active_record/associations/association_scope.rb @@ -1,8 +1,8 @@ module ActiveRecord module Associations class AssociationScope #:nodoc: - def self.scope(association, connection) - INSTANCE.scope(association, connection) + def self.scope(association) + INSTANCE.scope(association) end def self.create(&block) @@ -16,12 +16,12 @@ module ActiveRecord INSTANCE = create - def scope(association, connection) + def scope(association) klass = association.klass reflection = association.reflection scope = klass.unscoped owner = association.owner - alias_tracker = AliasTracker.create connection, association.klass.table_name, klass.type_caster + alias_tracker = AliasTracker.create(klass.connection, klass.table_name) chain_head, chain_tail = get_chain(reflection, association, alias_tracker) scope.extending! reflection.extensions @@ -112,7 +112,11 @@ module ActiveRecord runtime_reflection = Reflection::RuntimeReflection.new(reflection, association) previous_reflection = runtime_reflection reflection.chain.drop(1).each do |refl| - alias_name = tracker.aliased_table_for(refl.table_name, refl.alias_candidate(name)) + alias_name = tracker.aliased_table_for( + refl.table_name, + refl.alias_candidate(name), + refl.klass.type_caster + ) proxy = ReflectionProxy.new(refl, alias_name) previous_reflection.next = proxy previous_reflection = proxy @@ -138,7 +142,7 @@ module ActiveRecord # Exclude the scope of the association itself, because that # was already merged in the #scope method. reflection.constraints.each do |scope_chain_item| - item = eval_scope(reflection.klass, table, scope_chain_item, owner) + item = eval_scope(reflection, table, scope_chain_item, owner) if scope_chain_item == refl.scope scope.merge! item.except(:where, :includes) @@ -159,9 +163,8 @@ module ActiveRecord scope end - def eval_scope(klass, table, scope, owner) - predicate_builder = PredicateBuilder.new(TableMetadata.new(klass, table)) - ActiveRecord::Relation.create(klass, table, predicate_builder).instance_exec(owner, &scope) + def eval_scope(reflection, table, scope, owner) + reflection.build_scope(table).instance_exec(owner, &scope) end end end diff --git a/activerecord/lib/active_record/associations/builder/collection_association.rb b/activerecord/lib/active_record/associations/builder/collection_association.rb index edeb6491bd..1fb8f76f2e 100644 --- a/activerecord/lib/active_record/associations/builder/collection_association.rb +++ b/activerecord/lib/active_record/associations/builder/collection_association.rb @@ -1,5 +1,3 @@ -# This class is inherited by the has_many and has_many_and_belongs_to_many association classes - require "active_record/associations" module ActiveRecord::Associations::Builder # :nodoc: diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb index 0cb17b47e8..a49fb155ee 100644 --- a/activerecord/lib/active_record/associations/collection_association.rb +++ b/activerecord/lib/active_record/associations/collection_association.rb @@ -44,10 +44,7 @@ module ActiveRecord if loaded? target.pluck(reflection.association_primary_key) else - @association_ids ||= ( - column = "#{reflection.quoted_table_name}.#{reflection.association_primary_key}" - scope.pluck(column) - ) + @association_ids ||= scope.pluck(reflection.association_primary_key) end end @@ -69,6 +66,7 @@ module ActiveRecord def reset super @target = [] + @association_ids = nil end def find(*args) @@ -307,7 +305,7 @@ module ActiveRecord sc = reflection.association_scope_cache(conn, owner) do StatementCache.create(conn) { |params| as = AssociationScope.create { params.bind } - target_scope.merge as.scope(self, conn) + target_scope.merge!(as.scope(self)) } end @@ -358,7 +356,10 @@ module ActiveRecord transaction do add_to_target(build_record(attributes)) do |record| yield(record) if block_given? - insert_record(record, true, raise) { @_was_loaded = loaded? } + insert_record(record, true, raise) { + @_was_loaded = loaded? + @association_ids = nil + } end end end @@ -431,7 +432,12 @@ module ActiveRecord records.each do |record| raise_on_type_mismatch!(record) add_to_target(record) do - result &&= insert_record(record, true, raise) { @_was_loaded = loaded? } unless owner.new_record? + unless owner.new_record? + result &&= insert_record(record, true, raise) { + @_was_loaded = loaded? + @association_ids = nil + } + end end end diff --git a/activerecord/lib/active_record/associations/collection_proxy.rb b/activerecord/lib/active_record/associations/collection_proxy.rb index 8cdb508c43..d77fcaf668 100644 --- a/activerecord/lib/active_record/associations/collection_proxy.rb +++ b/activerecord/lib/active_record/associations/collection_proxy.rb @@ -1114,6 +1114,7 @@ module ActiveRecord end def reset_scope # :nodoc: + @offsets = {} @scope = nil self end diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb index 53ffb3b68d..2fd20b4368 100644 --- a/activerecord/lib/active_record/associations/has_many_through_association.rb +++ b/activerecord/lib/active_record/associations/has_many_through_association.rb @@ -109,6 +109,11 @@ module ActiveRecord record end + def remove_records(existing_records, records, method) + super + delete_through_records(records) + end + def target_reflection_has_associated_record? !(through_reflection.belongs_to? && owner[through_reflection.foreign_key].blank?) end diff --git a/activerecord/lib/active_record/associations/join_dependency.rb b/activerecord/lib/active_record/associations/join_dependency.rb index 83e5c23cc4..04cdcb6a7f 100644 --- a/activerecord/lib/active_record/associations/join_dependency.rb +++ b/activerecord/lib/active_record/associations/join_dependency.rb @@ -93,7 +93,7 @@ module ActiveRecord # joins # => [] # def initialize(base, associations, joins, eager_loading: true) - @alias_tracker = AliasTracker.create_with_joins(base.connection, base.table_name, joins, base.type_caster) + @alias_tracker = AliasTracker.create_with_joins(base.connection, base.table_name, joins) @eager_loading = eager_loading tree = self.class.make_tree associations @join_root = JoinBase.new base, build(tree, base) @@ -185,7 +185,8 @@ module ActiveRecord node.reflection.chain.map { |reflection| alias_tracker.aliased_table_for( reflection.table_name, - table_alias_for(reflection, parent, reflection != node.reflection) + table_alias_for(reflection, parent, reflection != node.reflection), + reflection.klass.type_caster ) } end @@ -197,8 +198,7 @@ module ActiveRecord def table_alias_for(reflection, parent, join) name = "#{reflection.plural_name}_#{parent.table_name}" - name << "_join" if join - name + join ? "#{name}_join" : name end def walk(left, right) diff --git a/activerecord/lib/active_record/associations/join_dependency/join_association.rb b/activerecord/lib/active_record/associations/join_dependency/join_association.rb index 97cfec0302..005410d598 100644 --- a/activerecord/lib/active_record/associations/join_dependency/join_association.rb +++ b/activerecord/lib/active_record/associations/join_dependency/join_association.rb @@ -34,34 +34,10 @@ module ActiveRecord table = tables.shift klass = reflection.klass - join_keys = reflection.join_keys - key = join_keys.key - foreign_key = join_keys.foreign_key + join_scope = reflection.join_scope(table, foreign_table, foreign_klass) - constraint = build_constraint(klass, table, key, foreign_table, foreign_key) - - predicate_builder = PredicateBuilder.new(TableMetadata.new(klass, table)) - scope_chain_items = reflection.join_scopes(table, predicate_builder) - klass_scope = reflection.klass_join_scope(table, predicate_builder) - - scope_chain_items.concat [klass_scope].compact - - rel = scope_chain_items.inject(scope_chain_items.shift) do |left, right| - left.merge right - end - - if rel && !rel.arel.constraints.empty? - binds += rel.bound_attributes - constraint = constraint.and rel.arel.constraints - end - - if reflection.type - value = foreign_klass.base_class.name - column = klass.columns_hash[reflection.type.to_s] - - binds << Relation::QueryAttribute.new(column.name, value, klass.type_for_attribute(column.name)) - constraint = constraint.and klass.arel_attribute(reflection.type, table).eq(Arel::Nodes::BindParam.new) - end + binds.concat join_scope.bound_attributes + constraint = join_scope.arel.constraints joins << table.create_join(table, table.create_on(constraint), join_type) @@ -72,34 +48,6 @@ module ActiveRecord JoinInformation.new joins, binds end - # Builds equality condition. - # - # Example: - # - # class Physician < ActiveRecord::Base - # has_many :appointments - # end - # - # If I execute `Physician.joins(:appointments).to_a` then - # klass # => Physician - # table # => #<Arel::Table @name="appointments" ...> - # key # => physician_id - # foreign_table # => #<Arel::Table @name="physicians" ...> - # foreign_key # => id - # - def build_constraint(klass, table, key, foreign_table, foreign_key) - constraint = table[key].eq(foreign_table[foreign_key]) - - if klass.finder_needs_type_condition? - constraint = table.create_and([ - constraint, - klass.send(:type_condition, table) - ]) - end - - constraint - end - def table tables.first end diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb index 9f77f38b35..208d1b2670 100644 --- a/activerecord/lib/active_record/associations/preloader.rb +++ b/activerecord/lib/active_record/associations/preloader.rb @@ -147,7 +147,7 @@ module ActiveRecord def preloaders_for_one(association, records, scope) grouped_records(association, records).flat_map do |reflection, klasses| klasses.map do |rhs_klass, rs| - loader = preloader_for(reflection, rs, rhs_klass).new(rhs_klass, rs, reflection, scope) + loader = preloader_for(reflection, rs).new(rhs_klass, rs, reflection, scope) loader.run self loader end @@ -159,6 +159,7 @@ module ActiveRecord records.each do |record| next unless record assoc = record.association(association) + next unless assoc.klass klasses = h[assoc.reflection] ||= {} (klasses[assoc.klass] ||= []) << record end @@ -180,20 +181,11 @@ module ActiveRecord end end - class NullPreloader # :nodoc: - def self.new(klass, owners, reflection, preload_scope); self; end - def self.run(preloader); end - def self.preloaded_records; []; end - def self.owners; []; end - end - # Returns a class containing the logic needed to load preload the data # and attach it to a relation. For example +Preloader::Association+ or # +Preloader::HasManyThrough+. The class returned implements a `run` method # that accepts a preloader. - def preloader_for(reflection, owners, rhs_klass) - return NullPreloader unless rhs_klass - + def preloader_for(reflection, owners) if owners.first.association(reflection.name).loaded? return AlreadyLoaded end diff --git a/activerecord/lib/active_record/associations/preloader/through_association.rb b/activerecord/lib/active_record/associations/preloader/through_association.rb index 8b954138cd..34587fd3f5 100644 --- a/activerecord/lib/active_record/associations/preloader/through_association.rb +++ b/activerecord/lib/active_record/associations/preloader/through_association.rb @@ -11,6 +11,8 @@ module ActiveRecord end def associated_records_by_owner(preloader) + through_scope = through_scope() + preloader.preload(owners, through_reflection.name, through_scope) @@ -20,7 +22,7 @@ module ActiveRecord [owner, Array(center)] end - reset_association owners, through_reflection.name + reset_association(owners, through_reflection.name, through_scope) middle_records = through_records.flat_map(&:last) @@ -63,7 +65,7 @@ module ActiveRecord id_map end - def reset_association(owners, association_name) + def reset_association(owners, association_name, through_scope) should_reset = (through_scope != through_reflection.klass.unscoped) || (options[:source_type] && through_reflection.collection?) diff --git a/activerecord/lib/active_record/associations/singular_association.rb b/activerecord/lib/active_record/associations/singular_association.rb index 2b426da607..f8bbe4c2ed 100644 --- a/activerecord/lib/active_record/associations/singular_association.rb +++ b/activerecord/lib/active_record/associations/singular_association.rb @@ -43,7 +43,7 @@ module ActiveRecord sc = reflection.association_scope_cache(conn, owner) do StatementCache.create(conn) { |params| as = AssociationScope.create { params.bind } - target_scope.merge(as.scope(self, conn)).limit(1) + target_scope.merge!(as.scope(self)).limit(1) } end diff --git a/activerecord/lib/active_record/attribute.rb b/activerecord/lib/active_record/attribute.rb index 38281158d8..78662433eb 100644 --- a/activerecord/lib/active_record/attribute.rb +++ b/activerecord/lib/active_record/attribute.rb @@ -122,7 +122,7 @@ module ActiveRecord def encode_with(coder) coder["name"] = name - coder["value_before_type_cast"] = value_before_type_cast if value_before_type_cast + coder["value_before_type_cast"] = value_before_type_cast unless value_before_type_cast.nil? coder["type"] = type if type coder["original_attribute"] = original_attribute if original_attribute coder["value"] = value if defined?(@value) diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb index 61bf5477aa..627b753f01 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb @@ -679,7 +679,7 @@ module ActiveRecord # this block can't be easily moved into attempt_to_checkout_all_existing_connections's # rescue block, because doing so would put it outside of synchronize section, without # being in a critical section thread_report might become inaccurate - msg = "could not obtain ownership of all database connections in #{checkout_timeout} seconds" + msg = "could not obtain ownership of all database connections in #{checkout_timeout} seconds".dup thread_report = [] @connections.each do |conn| 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 af5314c1d6..879626b72a 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -51,9 +51,7 @@ module ActiveRecord # Returns a single value from a record def select_value(arel, name = nil, binds = []) - if result = select_rows(arel, name, binds).first - result.first - end + single_value_from_rows(select_rows(arel, name, binds)) end # Returns an array of the values of the first column in a select: @@ -68,6 +66,18 @@ module ActiveRecord select_all(arel, name, binds).rows end + def query_value(sql, name = nil) # :nodoc: + single_value_from_rows(query(sql, name)) + end + + def query_values(sql, name = nil) # :nodoc: + query(sql, name).map(&:first) + end + + def query(sql, name = nil) # :nodoc: + exec_query(sql, name).rows + end + # Executes the SQL statement in the context of this connection and returns # the raw result from the connection adapter. # Note: depending on your database connector, the result returned by this @@ -410,7 +420,11 @@ module ActiveRecord end def last_inserted_id(result) - row = result.rows.first + single_value_from_rows(result.rows) + end + + def single_value_from_rows(rows) + row = rows.first row && row.first end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb index e53ba4e666..c352ddfc11 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb @@ -108,6 +108,7 @@ module ActiveRecord "sql.active_record", sql: sql, binds: binds, + type_casted_binds: -> { type_casted_binds(binds) }, name: name, connection_id: object_id, cached: true, @@ -123,6 +124,7 @@ module ActiveRecord # If arel is locked this is a SELECT ... FOR UPDATE or somesuch. Such # queries should not be cached. def locked?(arel) + arel = arel.arel if arel.is_a?(Relation) arel.respond_to?(:locked) && arel.locked end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb index 93f4529202..8865e7c703 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb @@ -22,7 +22,7 @@ module ActiveRecord private def visit_AlterTable(o) - sql = "ALTER TABLE #{quote_table_name(o.name)} " + sql = "ALTER TABLE #{quote_table_name(o.name)} ".dup sql << o.adds.map { |col| accept col }.join(" ") sql << o.foreign_key_adds.map { |fk| visit_AddForeignKey fk }.join(" ") sql << o.foreign_key_drops.map { |fk| visit_DropForeignKey fk }.join(" ") @@ -30,17 +30,17 @@ module ActiveRecord def visit_ColumnDefinition(o) o.sql_type = type_to_sql(o.type, o.options) - column_sql = "#{quote_column_name(o.name)} #{o.sql_type}" + column_sql = "#{quote_column_name(o.name)} #{o.sql_type}".dup add_column_options!(column_sql, column_options(o)) unless o.type == :primary_key column_sql end def visit_AddColumnDefinition(o) - "ADD #{accept(o.column)}" + "ADD #{accept(o.column)}".dup end def visit_TableDefinition(o) - create_sql = "CREATE#{' TEMPORARY' if o.temporary} TABLE #{quote_table_name(o.name)} " + create_sql = "CREATE#{' TEMPORARY' if o.temporary} TABLE #{quote_table_name(o.name)} ".dup statements = o.columns.map { |c| accept c } statements << accept(o.primary_keys) if o.primary_keys diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb index 22d7791dec..6aed00584a 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -31,7 +31,7 @@ module ActiveRecord # Returns the relation names useable to back Active Record models. # For most adapters this means all #tables and #views. def data_sources - select_values(data_source_sql, "SCHEMA") + query_values(data_source_sql, "SCHEMA") rescue NotImplementedError tables | views end @@ -41,14 +41,14 @@ module ActiveRecord # data_source_exists?(:ebooks) # def data_source_exists?(name) - select_values(data_source_sql(name), "SCHEMA").any? if name.present? + query_values(data_source_sql(name), "SCHEMA").any? if name.present? rescue NotImplementedError data_sources.include?(name.to_s) end # Returns an array of table names defined in the database. def tables - select_values(data_source_sql(type: "BASE TABLE"), "SCHEMA") + query_values(data_source_sql(type: "BASE TABLE"), "SCHEMA") end # Checks to see if the table +table_name+ exists on the database. @@ -56,14 +56,14 @@ module ActiveRecord # table_exists?(:developers) # def table_exists?(table_name) - select_values(data_source_sql(table_name, type: "BASE TABLE"), "SCHEMA").any? if table_name.present? + query_values(data_source_sql(table_name, type: "BASE TABLE"), "SCHEMA").any? if table_name.present? rescue NotImplementedError tables.include?(table_name.to_s) end # Returns an array of view names defined in the database. def views - select_values(data_source_sql(type: "VIEW"), "SCHEMA") + query_values(data_source_sql(type: "VIEW"), "SCHEMA") end # Checks to see if the view +view_name+ exists on the database. @@ -71,7 +71,7 @@ module ActiveRecord # view_exists?(:ebooks) # def view_exists?(view_name) - select_values(data_source_sql(view_name, type: "VIEW"), "SCHEMA").any? if view_name.present? + query_values(data_source_sql(view_name, type: "VIEW"), "SCHEMA").any? if view_name.present? rescue NotImplementedError views.include?(view_name.to_s) end @@ -1348,7 +1348,7 @@ module ActiveRecord sm_table = quote_table_name(ActiveRecord::SchemaMigration.table_name) if versions.is_a?(Array) - sql = "INSERT INTO #{sm_table} (version) VALUES\n" + sql = "INSERT INTO #{sm_table} (version) VALUES\n".dup sql << versions.map { |v| "(#{quote(v)})" }.join(",\n") sql << ";\n\n" sql diff --git a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb index 19b7821494..f63d09039f 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb @@ -1,10 +1,13 @@ module ActiveRecord module ConnectionAdapters class TransactionState - VALID_STATES = Set.new([:committed, :rolledback, nil]) - def initialize(state = nil) @state = state + @children = [] + end + + def add_child(state) + @children << state end def finalized? @@ -19,15 +22,43 @@ module ActiveRecord @state == :rolledback end + def fully_completed? + completed? + end + def completed? committed? || rolledback? end def set_state(state) - unless VALID_STATES.include?(state) + ActiveSupport::Deprecation.warn(<<-MSG.squish) + The set_state method is deprecated and will be removed in + Rails 6.0. Please use rollback! or commit! to set transaction + state directly. + MSG + case state + when :rolledback + rollback! + when :committed + commit! + when nil + nullify! + else raise ArgumentError, "Invalid transaction state: #{state}" end - @state = state + end + + def rollback! + @children.each { |c| c.rollback! } + @state = :rolledback + end + + def commit! + @state = :committed + end + + def nullify! + @state = nil end end @@ -57,7 +88,7 @@ module ActiveRecord end def rollback - @state.set_state(:rolledback) + @state.rollback! end def rollback_records @@ -72,7 +103,7 @@ module ActiveRecord end def commit - @state.set_state(:committed) + @state.commit! end def before_commit_records @@ -100,8 +131,11 @@ module ActiveRecord end class SavepointTransaction < Transaction - def initialize(connection, savepoint_name, options, *args) + def initialize(connection, savepoint_name, parent_transaction, options, *args) super(connection, options, *args) + + parent_transaction.state.add_child(@state) + if options[:isolation] raise ActiveRecord::TransactionIsolationError, "cannot set transaction isolation in a nested transaction" end @@ -155,7 +189,7 @@ module ActiveRecord if @stack.empty? RealTransaction.new(@connection, options, run_commit_callbacks: run_commit_callbacks) else - SavepointTransaction.new(@connection, "active_record_#{@stack.size}", options, + SavepointTransaction.new(@connection, "active_record_#{@stack.size}", @stack.last, options, run_commit_callbacks: run_commit_callbacks) end diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb index 85d6fbe8b3..9a085df934 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -147,7 +147,7 @@ module ActiveRecord # this method must only be called while holding connection pool's mutex def lease if in_use? - msg = "Cannot lease connection, " + msg = "Cannot lease connection, ".dup if @owner == Thread.current msg << "it is already leased by the current thread." else 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 c42e80ea2c..062fede1ce 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -120,11 +120,11 @@ module ActiveRecord end def get_advisory_lock(lock_name, timeout = 0) # :nodoc: - select_value("SELECT GET_LOCK(#{quote(lock_name)}, #{timeout})") == 1 + query_value("SELECT GET_LOCK(#{quote(lock_name)}, #{timeout})") == 1 end def release_advisory_lock(lock_name) # :nodoc: - select_value("SELECT RELEASE_LOCK(#{quote(lock_name)})") == 1 + query_value("SELECT RELEASE_LOCK(#{quote(lock_name)})") == 1 end def native_database_types @@ -132,7 +132,7 @@ module ActiveRecord end def index_algorithms - { default: "ALGORITHM = DEFAULT", copy: "ALGORITHM = COPY", inplace: "ALGORITHM = INPLACE" } + { default: "ALGORITHM = DEFAULT".dup, copy: "ALGORITHM = COPY".dup, inplace: "ALGORITHM = INPLACE".dup } end # HELPER METHODS =========================================== @@ -152,7 +152,7 @@ module ActiveRecord # REFERENTIAL INTEGRITY ==================================== def disable_referential_integrity #:nodoc: - old = select_value("SELECT @@FOREIGN_KEY_CHECKS") + old = query_value("SELECT @@FOREIGN_KEY_CHECKS") begin update("SET FOREIGN_KEY_CHECKS = 0") @@ -267,7 +267,7 @@ module ActiveRecord end def current_database - select_value "SELECT DATABASE() as db" + query_value("SELECT database()", "SCHEMA") end # Returns the database character set. @@ -287,7 +287,7 @@ module ActiveRecord def table_comment(table_name) # :nodoc: scope = quoted_scope(table_name) - select_value(<<-SQL.strip_heredoc, "SCHEMA") + query_value(<<-SQL.strip_heredoc, "SCHEMA") SELECT table_comment FROM information_schema.tables WHERE table_schema = #{scope[:schema]} @@ -379,7 +379,7 @@ module ActiveRecord def add_index(table_name, column_name, options = {}) #:nodoc: index_name, index_type, index_columns, _, index_algorithm, index_using, comment = add_index_options(table_name, column_name, options) - sql = "CREATE #{index_type} INDEX #{quote_column_name(index_name)} #{index_using} ON #{quote_table_name(table_name)} (#{index_columns}) #{index_algorithm}" + sql = "CREATE #{index_type} INDEX #{quote_column_name(index_name)} #{index_using} ON #{quote_table_name(table_name)} (#{index_columns}) #{index_algorithm}".dup execute add_sql_comment!(sql, comment) end @@ -393,7 +393,7 @@ module ActiveRecord scope = quoted_scope(table_name) - fk_info = select_all(<<-SQL.strip_heredoc, "SCHEMA") + fk_info = exec_query(<<-SQL.strip_heredoc, "SCHEMA") SELECT fk.referenced_table_name AS 'to_table', fk.referenced_column_name AS 'primary_key', fk.column_name AS 'column', @@ -464,13 +464,13 @@ module ActiveRecord super end - sql << " unsigned" if unsigned && type != :primary_key + sql = "#{sql} unsigned" if unsigned && type != :primary_key sql end # SHOW VARIABLES LIKE 'name' def show_variable(name) - select_value("SELECT @@#{name}", "SCHEMA") + query_value("SELECT @@#{name}", "SCHEMA") rescue ActiveRecord::StatementInvalid nil end @@ -480,7 +480,7 @@ module ActiveRecord scope = quoted_scope(table_name) - select_values(<<-SQL.strip_heredoc, "SCHEMA") + query_values(<<-SQL.strip_heredoc, "SCHEMA") SELECT column_name FROM information_schema.key_column_usage WHERE constraint_name = 'PRIMARY' @@ -694,7 +694,7 @@ module ActiveRecord auto_increment: column.auto_increment? } - current_type = select_one("SHOW COLUMNS FROM #{quote_table_name(table_name)} LIKE '#{column_name}'", "SCHEMA")["Type"] + current_type = exec_query("SHOW COLUMNS FROM #{quote_table_name(table_name)} LIKE #{quote(column_name)}", "SCHEMA").first["Type"] td = create_table_definition(table_name) cd = td.new_column_definition(new_column_name, current_type, options) schema_creation.accept(ChangeColumnDefinition.new(cd, column.name)) @@ -778,7 +778,7 @@ module ActiveRecord # http://dev.mysql.com/doc/refman/5.7/en/set-statement.html#id944430 # (trailing comma because variable_assignments will always have content) if @config[:encoding] - encoding = "NAMES #{@config[:encoding]}" + encoding = "NAMES #{@config[:encoding]}".dup encoding << " COLLATE #{@config[:collation]}" if @config[:collation] encoding << ", " end @@ -804,7 +804,7 @@ module ActiveRecord end def create_table_info(table_name) # :nodoc: - select_one("SHOW CREATE TABLE #{quote_table_name(table_name)}")["Create Table"] + exec_query("SHOW CREATE TABLE #{quote_table_name(table_name)}", "SCHEMA").first["Create Table"] end def arel_visitor diff --git a/activerecord/lib/active_record/connection_adapters/mysql/database_statements.rb b/activerecord/lib/active_record/connection_adapters/mysql/database_statements.rb index 9f1021456b..bda482a00f 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql/database_statements.rb @@ -13,6 +13,10 @@ module ActiveRecord result end + def query(sql, name = nil) # :nodoc: + execute(sql, name).to_a + end + # Executes the SQL statement in the context of this connection. def execute(sql, name = nil) # make sure we carry over any changes to ActiveRecord::Base.default_timezone that have been diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_creation.rb index 083cd6340f..eea4984680 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_creation.rb @@ -16,7 +16,7 @@ module ActiveRecord end def visit_ChangeColumnDefinition(o) - change_column_sql = "CHANGE #{quote_column_name(o.name)} #{accept(o.column)}" + change_column_sql = "CHANGE #{quote_column_name(o.name)} #{accept(o.column)}".dup add_column_position!(change_column_sql, column_options(o.column)) end @@ -63,7 +63,7 @@ module ActiveRecord def index_in_create(table_name, column_name, options) index_name, index_type, index_columns, _, _, index_using, comment = @conn.add_index_options(table_name, column_name, options) - add_sql_comment!("#{index_type} INDEX #{quote_column_name(index_name)} #{index_using} (#{index_columns})", comment) + add_sql_comment!("#{index_type} INDEX #{quote_column_name(index_name)} #{index_using} (#{index_columns})".dup, comment) end end end diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb index e2ba0ba1a0..eff96e329f 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb @@ -47,7 +47,7 @@ module ActiveRecord def schema_collation(column) if column.collation && table_name = column.table_name @table_collation_cache ||= {} - @table_collation_cache[table_name] ||= select_one("SHOW TABLE STATUS LIKE '#{table_name}'")["Collation"] + @table_collation_cache[table_name] ||= exec_query("SHOW TABLE STATUS LIKE #{quote(table_name)}", "SCHEMA").first["Collation"] column.collation.inspect if column.collation != @table_collation_cache[table_name] end end @@ -64,7 +64,7 @@ module ActiveRecord " WHERE table_schema = #{scope[:schema]}" \ " AND table_name = #{scope[:name]}" \ " AND column_name = #{quote(column.name)}" - select_value(sql, "SCHEMA").inspect + query_value(sql, "SCHEMA").inspect end end end diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb index fc57e41fc9..a01fbba201 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb @@ -102,7 +102,7 @@ module ActiveRecord def data_source_sql(name = nil, type: nil) scope = quoted_scope(name, type: type) - sql = "SELECT table_name FROM information_schema.tables" + sql = "SELECT table_name FROM information_schema.tables".dup sql << " WHERE table_schema = #{scope[:schema]}" sql << " AND table_name = #{scope[:name]}" if scope[:name] sql << " AND table_type = #{scope[:type]}" if scope[:type] diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb index ac5efbebeb..ebf1715ed0 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb @@ -147,6 +147,10 @@ module ActiveRecord end private + # Returns the current ID of a table's sequence. + def last_insert_id_result(sequence_name) + exec_query("SELECT currval(#{quote(sequence_name)})", "SQL") + end def suppress_composite_primary_key(pk) pk unless pk.is_a?(Array) diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb index 44eb666965..ee4230c6f2 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb @@ -78,7 +78,7 @@ module ActiveRecord private def lookup_cast_type(sql_type) - super(select_value("SELECT #{quote(sql_type)}::regtype::oid", "SCHEMA").to_i) + super(query_value("SELECT #{quote(sql_type)}::regtype::oid", "SCHEMA").to_i) end def _quote(value) diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb index cb45d7ba6b..a710ea6cc9 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -60,7 +60,7 @@ module ActiveRecord # Returns true if schema exists. def schema_exists?(name) - select_value("SELECT COUNT(*) FROM pg_namespace WHERE nspname = #{quote(name)}", "SCHEMA").to_i > 0 + query_value("SELECT COUNT(*) FROM pg_namespace WHERE nspname = #{quote(name)}", "SCHEMA").to_i > 0 end # Verifies existence of an index with a given name. @@ -73,7 +73,7 @@ module ActiveRecord table = quoted_scope(table_name) index = quoted_scope(index_name) - select_value(<<-SQL, "SCHEMA").to_i > 0 + query_value(<<-SQL, "SCHEMA").to_i > 0 SELECT COUNT(*) FROM pg_class t INNER JOIN pg_index d ON t.oid = d.indrelid @@ -163,7 +163,7 @@ module ActiveRecord def table_comment(table_name) # :nodoc: scope = quoted_scope(table_name, type: "BASE TABLE") if scope[:name] - select_value(<<-SQL.strip_heredoc, "SCHEMA") + query_value(<<-SQL.strip_heredoc, "SCHEMA") SELECT pg_catalog.obj_description(c.oid, 'pg_class') FROM pg_catalog.pg_class c LEFT JOIN pg_namespace n ON n.oid = c.relnamespace @@ -176,32 +176,32 @@ module ActiveRecord # Returns the current database name. def current_database - select_value("SELECT current_database()", "SCHEMA") + query_value("SELECT current_database()", "SCHEMA") end # Returns the current schema name. def current_schema - select_value("SELECT current_schema", "SCHEMA") + query_value("SELECT current_schema", "SCHEMA") end # Returns the current database encoding format. def encoding - select_value("SELECT pg_encoding_to_char(encoding) FROM pg_database WHERE datname = current_database()", "SCHEMA") + query_value("SELECT pg_encoding_to_char(encoding) FROM pg_database WHERE datname = current_database()", "SCHEMA") end # Returns the current database collation. def collation - select_value("SELECT datcollate FROM pg_database WHERE datname = current_database()", "SCHEMA") + query_value("SELECT datcollate FROM pg_database WHERE datname = current_database()", "SCHEMA") end # Returns the current database ctype. def ctype - select_value("SELECT datctype FROM pg_database WHERE datname = current_database()", "SCHEMA") + query_value("SELECT datctype FROM pg_database WHERE datname = current_database()", "SCHEMA") end # Returns an array of schema names. def schema_names - select_values(<<-SQL, "SCHEMA") + query_values(<<-SQL, "SCHEMA") SELECT nspname FROM pg_namespace WHERE nspname !~ '^pg_.*' @@ -234,12 +234,12 @@ module ActiveRecord # Returns the active schema search path. def schema_search_path - @schema_search_path ||= select_value("SHOW search_path", "SCHEMA") + @schema_search_path ||= query_value("SHOW search_path", "SCHEMA") end # Returns the current client message level. def client_min_messages - select_value("SHOW client_min_messages", "SCHEMA") + query_value("SHOW client_min_messages", "SCHEMA") end # Set the client message level. @@ -257,7 +257,7 @@ module ActiveRecord end def serial_sequence(table, column) - select_value("SELECT pg_get_serial_sequence('#{table}', '#{column}')", "SCHEMA") + query_value("SELECT pg_get_serial_sequence(#{quote(table)}, #{quote(column)})", "SCHEMA") end # Sets the sequence of a table's primary key to the specified value. @@ -268,7 +268,7 @@ module ActiveRecord if sequence quoted_sequence = quote_table_name(sequence) - select_value("SELECT setval('#{quoted_sequence}', #{value})", "SCHEMA") + query_value("SELECT setval(#{quote(quoted_sequence)}, #{value})", "SCHEMA") else @logger.warn "#{table} has primary key #{pk} with no default sequence." if @logger end @@ -290,18 +290,16 @@ module ActiveRecord if pk && sequence quoted_sequence = quote_table_name(sequence) - max_pk = select_value("select MAX(#{quote_column_name pk}) from #{quote_table_name(table)}") + max_pk = query_value("SELECT MAX(#{quote_column_name pk}) FROM #{quote_table_name(table)}", "SCHEMA") if max_pk.nil? if postgresql_version >= 100000 - minvalue = select_value("SELECT seqmin from pg_sequence where seqrelid = '#{quoted_sequence}'::regclass") + minvalue = query_value("SELECT seqmin FROM pg_sequence WHERE seqrelid = #{quote(quoted_sequence)}::regclass", "SCHEMA") else - minvalue = select_value("SELECT min_value FROM #{quoted_sequence}") + minvalue = query_value("SELECT min_value FROM #{quoted_sequence}", "SCHEMA") end end - select_value(<<-end_sql, "SCHEMA") - SELECT setval('#{quoted_sequence}', #{max_pk ? max_pk : minvalue}, #{max_pk ? true : false}) - end_sql + query_value("SELECT setval(#{quote(quoted_sequence)}, #{max_pk ? max_pk : minvalue}, #{max_pk ? true : false})", "SCHEMA") end end @@ -325,7 +323,7 @@ module ActiveRecord AND seq.relnamespace = nsp.oid AND cons.contype = 'p' AND dep.classid = 'pg_class'::regclass - AND dep.refobjid = '#{quote_table_name(table)}'::regclass + AND dep.refobjid = #{quote(quote_table_name(table))}::regclass end_sql if result.nil? || result.empty? @@ -343,7 +341,7 @@ module ActiveRecord JOIN pg_attrdef def ON (adrelid = attrelid AND adnum = attnum) JOIN pg_constraint cons ON (conrelid = adrelid AND adnum = conkey[1]) JOIN pg_namespace nsp ON (t.relnamespace = nsp.oid) - WHERE t.oid = '#{quote_table_name(table)}'::regclass + WHERE t.oid = #{quote(quote_table_name(table))}::regclass AND cons.contype = 'p' AND pg_get_expr(def.adbin, def.adrelid) ~* 'nextval|uuid_generate' end_sql @@ -360,7 +358,7 @@ module ActiveRecord end def primary_keys(table_name) # :nodoc: - select_values(<<-SQL.strip_heredoc, "SCHEMA") + query_values(<<-SQL.strip_heredoc, "SCHEMA") SELECT a.attname FROM ( SELECT indrelid, indkey, generate_subscripts(indkey, 1) idx @@ -408,7 +406,7 @@ module ActiveRecord quoted_table_name = quote_table_name(table_name) quoted_column_name = quote_column_name(column_name) sql_type = type_to_sql(type, options) - sql = "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quoted_column_name} TYPE #{sql_type}" + sql = "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quoted_column_name} TYPE #{sql_type}".dup if options[:collation] sql << " COLLATE \"#{options[:collation]}\"" end @@ -511,7 +509,7 @@ module ActiveRecord def foreign_keys(table_name) scope = quoted_scope(table_name) - fk_info = select_all(<<-SQL.strip_heredoc, "SCHEMA") + fk_info = exec_query(<<-SQL.strip_heredoc, "SCHEMA") SELECT t2.oid::regclass::text AS to_table, a1.attname AS column, a2.attname AS primary_key, c.conname AS name, c.confupdtype AS on_update, c.confdeltype AS on_delete FROM pg_constraint c JOIN pg_class t1 ON c.conrelid = t1.oid @@ -568,7 +566,7 @@ module ActiveRecord super end - sql << "[]" if array && type != :primary_key + sql = "#{sql}[]" if array && type != :primary_key sql end @@ -637,7 +635,7 @@ module ActiveRecord scope = quoted_scope(name, type: type) scope[:type] ||= "'r','v','m'" # (r)elation/table, (v)iew, (m)aterialized view - sql = "SELECT c.relname FROM pg_class c LEFT JOIN pg_namespace n ON n.oid = c.relnamespace" + sql = "SELECT c.relname FROM pg_class c LEFT JOIN pg_namespace n ON n.oid = c.relnamespace".dup sql << " WHERE n.nspname = #{scope[:schema]}" sql << " AND c.relname = #{scope[:name]}" if scope[:name] sql << " AND c.relkind IN (#{scope[:type]})" diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 5287dd6a51..e63563afc4 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -312,14 +312,14 @@ module ActiveRecord unless lock_id.is_a?(Integer) && lock_id.bit_length <= 63 raise(ArgumentError, "Postgres requires advisory lock ids to be a signed 64 bit integer") end - select_value("SELECT pg_try_advisory_lock(#{lock_id});") + query_value("SELECT pg_try_advisory_lock(#{lock_id})") end def release_advisory_lock(lock_id) # :nodoc: unless lock_id.is_a?(Integer) && lock_id.bit_length <= 63 raise(ArgumentError, "Postgres requires advisory lock ids to be a signed 64 bit integer") end - select_value("SELECT pg_advisory_unlock(#{lock_id})") + query_value("SELECT pg_advisory_unlock(#{lock_id})") end def enable_extension(name) @@ -336,15 +336,14 @@ module ActiveRecord def extension_enabled?(name) if supports_extensions? - res = exec_query "SELECT EXISTS(SELECT * FROM pg_available_extensions WHERE name = '#{name}' AND installed_version IS NOT NULL) as enabled", - "SCHEMA" + res = exec_query("SELECT EXISTS(SELECT * FROM pg_available_extensions WHERE name = '#{name}' AND installed_version IS NOT NULL) as enabled", "SCHEMA") res.cast_values.first end end def extensions if supports_extensions? - exec_query("SELECT extname from pg_extension", "SCHEMA").cast_values + exec_query("SELECT extname FROM pg_extension", "SCHEMA").cast_values else super end @@ -352,14 +351,14 @@ module ActiveRecord # Returns the configured supported identifier length supported by PostgreSQL def table_alias_length - @max_identifier_length ||= select_value("SHOW max_identifier_length", "SCHEMA").to_i + @max_identifier_length ||= query_value("SHOW max_identifier_length", "SCHEMA").to_i end alias index_name_length table_alias_length # Set the authorized user for this session def session_auth=(user) clear_cache! - exec_query "SET SESSION AUTHORIZATION #{user}" + execute("SET SESSION AUTHORIZATION #{user}") end def use_insert_returning? @@ -723,11 +722,6 @@ module ActiveRecord end end - # Returns the current ID of a table's sequence. - def last_insert_id_result(sequence_name) - exec_query("SELECT currval('#{sequence_name}')", "SQL") - end - # Returns the list of a table's column names, data types, and default values. # # The underlying query is roughly: diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb index e02491edb6..31e83f9260 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb @@ -11,7 +11,7 @@ module ActiveRecord end exec_query("PRAGMA index_list(#{quote_table_name(table_name)})", "SCHEMA").map do |row| - index_sql = select_value(<<-SQL, "SCHEMA") + index_sql = query_value(<<-SQL, "SCHEMA") SELECT sql FROM sqlite_master WHERE name = #{quote(row['name'])} AND type = 'index' @@ -67,7 +67,7 @@ module ActiveRecord scope = quoted_scope(name, type: type) scope[:type] ||= "'table','view'" - sql = "SELECT name FROM sqlite_master WHERE name <> 'sqlite_sequence'" + sql = "SELECT name FROM sqlite_master WHERE name <> 'sqlite_sequence'".dup sql << " AND name = #{scope[:name]}" if scope[:name] sql << " AND type IN (#{scope[:type]})" sql diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index ee2faf43b5..17c63d4b5f 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -169,7 +169,7 @@ module ActiveRecord # REFERENTIAL INTEGRITY ==================================== def disable_referential_integrity # :nodoc: - old = select_value("PRAGMA foreign_keys") + old = query_value("PRAGMA foreign_keys") begin execute("PRAGMA foreign_keys = OFF") @@ -337,7 +337,7 @@ module ActiveRecord alias :add_belongs_to :add_reference def foreign_keys(table_name) - fk_info = select_all("PRAGMA foreign_key_list(#{quote(table_name)})", "SCHEMA") + fk_info = exec_query("PRAGMA foreign_key_list(#{quote(table_name)})", "SCHEMA") fk_info.map do |row| options = { column: row["from"], @@ -443,7 +443,7 @@ module ActiveRecord end def sqlite_version - @sqlite_version ||= SQLite3Adapter::Version.new(select_value("SELECT sqlite_version(*)")) + @sqlite_version ||= SQLite3Adapter::Version.new(query_value("SELECT sqlite_version(*)")) end def translate_exception(exception, message) diff --git a/activerecord/lib/active_record/explain.rb b/activerecord/lib/active_record/explain.rb index 8f7ae2c33c..5e67d16e9f 100644 --- a/activerecord/lib/active_record/explain.rb +++ b/activerecord/lib/active_record/explain.rb @@ -16,7 +16,7 @@ module ActiveRecord # Returns a formatted string ready to be logged. def exec_explain(queries) # :nodoc: str = queries.map do |sql, binds| - msg = "EXPLAIN for: #{sql}" + msg = "EXPLAIN for: #{sql}".dup unless binds.empty? msg << " " msg << binds.map { |attr| render_bind(attr) }.inspect diff --git a/activerecord/lib/active_record/log_subscriber.rb b/activerecord/lib/active_record/log_subscriber.rb index 2297c77835..e39ca5f6dc 100644 --- a/activerecord/lib/active_record/log_subscriber.rb +++ b/activerecord/lib/active_record/log_subscriber.rb @@ -29,7 +29,7 @@ module ActiveRecord binds = nil unless (payload[:binds] || []).empty? - casted_params = type_casted_binds(payload[:binds], payload[:type_casted_binds]) + casted_params = type_casted_binds(payload[:type_casted_binds]) binds = " " + payload[:binds].zip(casted_params).map { |attr, value| render_bind(attr, value) }.inspect @@ -42,9 +42,8 @@ module ActiveRecord end private - - def type_casted_binds(binds, casted_binds) - casted_binds || ActiveRecord::Base.connection.type_casted_binds(binds) + def type_casted_binds(casted_binds) + casted_binds.respond_to?(:call) ? casted_binds.call : casted_binds end def render_bind(attr, value) diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index 51c82f4ced..1ff1dcad43 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -157,7 +157,7 @@ module ActiveRecord class ProtectedEnvironmentError < ActiveRecordError #:nodoc: def initialize(env = "production") - msg = "You are attempting to run a destructive action against your '#{env}' database.\n" + msg = "You are attempting to run a destructive action against your '#{env}' database.\n".dup msg << "If you are sure you want to continue, run the same command with the environment variable:\n" msg << "DISABLE_DATABASE_ENVIRONMENT_CHECK=1" super(msg) @@ -166,7 +166,7 @@ module ActiveRecord class EnvironmentMismatchError < ActiveRecordError def initialize(current: nil, stored: nil) - msg = "You are attempting to modify a database that was last run in `#{ stored }` environment.\n" + msg = "You are attempting to modify a database that was last run in `#{ stored }` environment.\n".dup msg << "You are running in `#{ current }` environment. " msg << "If you are sure you want to continue, first set the environment using:\n\n" msg << " bin/rails db:environment:set" @@ -1239,7 +1239,7 @@ module ActiveRecord record_version_state_after_migrating(migration.version) end rescue => e - msg = "An error has occurred, " + msg = "An error has occurred, ".dup msg << "this and " if use_transaction?(migration) msg << "all later migrations canceled:\n\n#{e}" raise StandardError, msg, e.backtrace diff --git a/activerecord/lib/active_record/query_cache.rb b/activerecord/lib/active_record/query_cache.rb index ec246e97bc..e4c2e1f86f 100644 --- a/activerecord/lib/active_record/query_cache.rb +++ b/activerecord/lib/active_record/query_cache.rb @@ -5,20 +5,20 @@ module ActiveRecord # Enable the query cache within the block if Active Record is configured. # If it's not, it will execute the given block. def cache(&block) - if connected? - connection.cache(&block) - else + if configurations.empty? yield + else + connection.cache(&block) end end # Disable the query cache within the block if Active Record is configured. # If it's not, it will execute the given block. def uncached(&block) - if connected? - connection.uncached(&block) - else + if configurations.empty? yield + else + connection.uncached(&block) end end end diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index e8ee8279fd..8ff2f50fdb 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -171,7 +171,7 @@ module ActiveRecord JoinKeys = Struct.new(:key, :foreign_key) # :nodoc: def join_keys - get_join_keys klass + @join_keys ||= get_join_keys(klass) end # Returns a list of scopes that should be applied for this Reflection @@ -185,10 +185,30 @@ module ActiveRecord end deprecate :scope_chain + def join_scope(table, foreign_table, foreign_klass) + predicate_builder = predicate_builder(table) + scope_chain_items = join_scopes(table, predicate_builder) + klass_scope = klass_join_scope(table, predicate_builder) + + key = join_keys.key + foreign_key = join_keys.foreign_key + + klass_scope.where!(table[key].eq(foreign_table[foreign_key])) + + if klass.finder_needs_type_condition? + klass_scope.where!(klass.send(:type_condition, table)) + end + + if type + klass_scope.where!(type => foreign_klass.base_class.sti_name) + end + + scope_chain_items.inject(klass_scope, &:merge!) + end + def join_scopes(table, predicate_builder) # :nodoc: if scope - [ActiveRecord::Relation.create(klass, table, predicate_builder) - .instance_exec(&scope)] + [build_scope(table, predicate_builder).instance_exec(&scope)] else [] end @@ -200,12 +220,7 @@ module ActiveRecord scope.joins_values = scope.left_outer_joins_values = [].freeze } else - relation = ActiveRecord::Relation.create( - klass, - table, - predicate_builder, - ) - klass.send(:build_default_scope, relation) + klass.default_scoped(build_scope(table, predicate_builder)) end end @@ -287,12 +302,19 @@ module ActiveRecord JoinKeys.new(join_pk(association_klass), join_fk) end + def build_scope(table, predicate_builder = predicate_builder(table)) + Relation.create(klass, table, predicate_builder) + end + protected def actual_source_reflection # FIXME: this is a horrible name self end private + def predicate_builder(table) + PredicateBuilder.new(TableMetadata.new(klass, table)) + end def join_pk(_) foreign_key @@ -570,7 +592,7 @@ module ActiveRecord end VALID_AUTOMATIC_INVERSE_MACROS = [:has_many, :has_one, :belongs_to] - INVALID_AUTOMATIC_INVERSE_OPTIONS = [:conditions, :through, :polymorphic, :foreign_key] + INVALID_AUTOMATIC_INVERSE_OPTIONS = [:conditions, :through, :foreign_key] def add_as_source(seed) seed @@ -641,9 +663,8 @@ module ActiveRecord # us from being able to guess the inverse automatically. First, the # <tt>inverse_of</tt> option cannot be set to false. Second, we must # have <tt>has_many</tt>, <tt>has_one</tt>, <tt>belongs_to</tt> associations. - # Third, we must not have options such as <tt>:polymorphic</tt> or - # <tt>:foreign_key</tt> which prevent us from correctly guessing the - # inverse association. + # Third, we must not have options such as <tt>:foreign_key</tt> + # which prevent us from correctly guessing the inverse association. # # Anything with a scope can additionally ruin our attempt at finding an # inverse, so we exclude reflections with scopes. @@ -746,10 +767,6 @@ module ActiveRecord end class HasAndBelongsToManyReflection < AssociationReflection # :nodoc: - def initialize(name, scope, options, active_record) - super - end - def macro; :has_and_belongs_to_many; end def collection? diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 7a8f9abb36..52f5d5f3e3 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -18,7 +18,7 @@ module ActiveRecord attr_reader :table, :klass, :loaded, :predicate_builder alias :model :klass alias :loaded? :loaded - alias :locked? :locked + alias :locked? :lock_value def initialize(klass, table, predicate_builder, values = {}) @klass = klass @@ -333,7 +333,7 @@ module ActiveRecord # Please check unscoped if you want to remove all previous scopes (including # the default_scope) during the execution of a block. def scoping - previous, klass.current_scope = klass.current_scope, self + previous, klass.current_scope = klass.current_scope(true), self yield ensure klass.current_scope = previous diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index c562f214c9..8a54f8f2c3 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -41,7 +41,7 @@ module ActiveRecord unless column_name.nil? ActiveSupport::Deprecation.warn \ "When `count' is called with a block, it ignores other arguments. " \ - "This behavior is now deprecated and will result in an ArgumentError in Rails 5.3." + "This behavior is now deprecated and will result in an ArgumentError in Rails 6.0." end return super() @@ -86,7 +86,7 @@ module ActiveRecord unless column_name.nil? ActiveSupport::Deprecation.warn \ "When `sum' is called with a block, it ignores other arguments. " \ - "This behavior is now deprecated and will result in an ArgumentError in Rails 5.3." + "This behavior is now deprecated and will result in an ArgumentError in Rails 6.0." end return super() @@ -311,7 +311,7 @@ module ActiveRecord relation.group_values = group_fields relation.select_values = select_values - calculated_data = @klass.connection.select_all(relation, nil, relation.bound_attributes) + calculated_data = @klass.connection.select_all(relation.arel, nil, relation.bound_attributes) if association key_ids = calculated_data.collect { |row| row[group_aliases.first] } diff --git a/activerecord/lib/active_record/relation/delegation.rb b/activerecord/lib/active_record/relation/delegation.rb index dada0fddf8..48c4dcdef4 100644 --- a/activerecord/lib/active_record/relation/delegation.rb +++ b/activerecord/lib/active_record/relation/delegation.rb @@ -44,8 +44,6 @@ module ActiveRecord delegate :table_name, :quoted_table_name, :primary_key, :quoted_primary_key, :connection, :columns_hash, to: :klass - delegate :ast, :locked, to: :arel - module ClassSpecificRelation # :nodoc: extend ActiveSupport::Concern @@ -91,6 +89,8 @@ module ActiveRecord self.class.delegate_to_scoped_klass(method) scoping { @klass.public_send(method, *args, &block) } elsif arel.respond_to?(method) + ActiveSupport::Deprecation.warn \ + "Delegating #{method} to arel is deprecated and will be removed in Rails 6.0." self.class.delegate method, to: :arel arel.public_send(method, *args, &block) else @@ -115,15 +115,5 @@ module ActiveRecord def respond_to_missing?(method, _) super || @klass.respond_to?(method) || arel.respond_to?(method) end - - def method_missing(method, *args, &block) - if @klass.respond_to?(method) - scoping { @klass.public_send(method, *args, &block) } - elsif arel.respond_to?(method) - arel.public_send(method, *args, &block) - else - super - end - end end end diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index 1d661fa8ed..eee0f36f63 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -147,8 +147,7 @@ module ActiveRecord def last(limit = nil) return find_last(limit) if loaded? || limit_value - result = limit(limit) - result.order!(arel_attribute(primary_key)) if order_values.empty? && primary_key + result = ordered_relation.limit(limit) result = result.reverse_order! limit ? result.reverse : result.first @@ -316,7 +315,7 @@ module ActiveRecord relation = construct_relation_for_exists(relation, conditions) - connection.select_value(relation, "#{name} Exists", relation.bound_attributes) ? true : false + connection.select_value(relation.arel, "#{name} Exists", relation.bound_attributes) ? true : false rescue ::RangeError false end @@ -335,14 +334,14 @@ module ActiveRecord name = @klass.name if ids.nil? - error = "Couldn't find #{name}" + error = "Couldn't find #{name}".dup error << " with#{conditions}" if conditions raise RecordNotFound.new(error, name) elsif Array(ids).size == 1 error = "Couldn't find #{name} with '#{key}'=#{ids}#{conditions}" raise RecordNotFound.new(error, name, key, ids) else - error = "Couldn't find all #{name.pluralize} with '#{key}': " + error = "Couldn't find all #{name.pluralize} with '#{key}': ".dup error << "(#{ids.join(", ")})#{conditions} (found #{result_size} results, but was looking for #{expected_size})" raise RecordNotFound.new(error, name, primary_key, ids) @@ -377,8 +376,7 @@ module ActiveRecord if ActiveRecord::NullRelation === relation [] else - arel = relation.arel - rows = connection.select_all(arel, "SQL", relation.bound_attributes) + rows = connection.select_all(relation.arel, "SQL", relation.bound_attributes) join_dependency.instantiate(rows, aliases) end end @@ -425,9 +423,8 @@ module ActiveRecord "#{quoted_table_name}.#{quoted_primary_key}", relation.order_values) relation = relation.except(:select).select(values).distinct! - arel = relation.arel - id_rows = @klass.connection.select_all(arel, "SQL", relation.bound_attributes) + id_rows = @klass.connection.select_all(relation.arel, "SQL", relation.bound_attributes) id_rows.map { |row| row[primary_key] } end @@ -535,11 +532,7 @@ module ActiveRecord if loaded? records[index, limit] || [] else - relation = if order_values.empty? && primary_key - order(arel_attribute(primary_key).asc) - else - self - end + relation = ordered_relation if limit_value.nil? || index < limit_value relation = relation.offset(offset_index + index) unless index.zero? @@ -554,11 +547,7 @@ module ActiveRecord if loaded? records[-index] else - relation = if order_values.empty? && primary_key - order(arel_attribute(primary_key).asc) - else - self - end + relation = ordered_relation relation.to_a[-index] # TODO: can be made more performant on large result sets by @@ -572,5 +561,13 @@ module ActiveRecord def find_last(limit) limit ? records.last(limit) : records.last end + + def ordered_relation + if order_values.empty? && primary_key + order(arel_attribute(primary_key).asc) + else + self + end + end end end diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index 6ccdd7adcb..d44f6fd572 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -1122,7 +1122,7 @@ module ActiveRecord validate_order_args(order_args) references = order_args.grep(String) - references.map! { |arg| arg =~ /^([a-zA-Z]\w*)\.(\w+)/ && $1 }.compact! + references.map! { |arg| arg =~ /^\W?(\w+)\W?\./ && $1 }.compact! references!(references) if references.any? # if a symbol is given we prepend the quoted table name diff --git a/activerecord/lib/active_record/scoping.rb b/activerecord/lib/active_record/scoping.rb index 7c00e7e4ed..94e0ef6724 100644 --- a/activerecord/lib/active_record/scoping.rb +++ b/activerecord/lib/active_record/scoping.rb @@ -10,8 +10,8 @@ module ActiveRecord end module ClassMethods - def current_scope #:nodoc: - ScopeRegistry.value_for(:current_scope, self) + def current_scope(skip_inherited_scope = false) # :nodoc: + ScopeRegistry.value_for(:current_scope, self, skip_inherited_scope) end def current_scope=(scope) #:nodoc: @@ -75,8 +75,9 @@ module ActiveRecord end # Obtains the value for a given +scope_type+ and +model+. - def value_for(scope_type, model) + def value_for(scope_type, model, skip_inherited_scope = false) raise_invalid_scope_type!(scope_type) + return @registry[scope_type][model.name] if skip_inherited_scope klass = model base = model.base_class while klass <= base diff --git a/activerecord/lib/active_record/scoping/named.rb b/activerecord/lib/active_record/scoping/named.rb index a61fdd6454..b4026fabb2 100644 --- a/activerecord/lib/active_record/scoping/named.rb +++ b/activerecord/lib/active_record/scoping/named.rb @@ -29,8 +29,7 @@ module ActiveRecord end end - def default_scoped # :nodoc: - scope = relation + def default_scoped(scope = relation) # :nodoc: build_default_scope(scope) || scope end @@ -160,7 +159,7 @@ module ActiveRecord if body.respond_to?(:to_proc) singleton_class.send(:define_method, name) do |*args| scope = all - scope = scope.scoping { instance_exec(*args, &body) || scope } + scope = scope.instance_exec(*args, &body) || scope scope = scope.extending(extension) if extension scope end diff --git a/activerecord/lib/active_record/tasks/mysql_database_tasks.rb b/activerecord/lib/active_record/tasks/mysql_database_tasks.rb index 541165b3d1..88cbd6f6f5 100644 --- a/activerecord/lib/active_record/tasks/mysql_database_tasks.rb +++ b/activerecord/lib/active_record/tasks/mysql_database_tasks.rb @@ -59,7 +59,6 @@ module ActiveRecord args.concat(["--no-data"]) args.concat(["--routines"]) args.concat(["--skip-comments"]) - args.concat(Array(extra_flags)) if extra_flags ignore_tables = ActiveRecord::SchemaDumper.ignore_tables if ignore_tables.any? @@ -67,6 +66,7 @@ module ActiveRecord end args.concat(["#{configuration['database']}"]) + args.unshift(*extra_flags) if extra_flags run_cmd("mysqldump", args, "dumping") end @@ -75,7 +75,7 @@ module ActiveRecord args = prepare_command_options args.concat(["--execute", %{SET FOREIGN_KEY_CHECKS = 0; SOURCE #{filename}; SET FOREIGN_KEY_CHECKS = 1}]) args.concat(["--database", "#{configuration['database']}"]) - args.concat(Array(extra_flags)) if extra_flags + args.unshift(*extra_flags) if extra_flags run_cmd("mysql", args, "loading") end @@ -151,7 +151,7 @@ IDENTIFIED BY '#{configuration['password']}' WITH GRANT OPTION; end def run_cmd_error(cmd, args, action) - msg = "failed to execute: `#{cmd}`\n" + msg = "failed to execute: `#{cmd}`\n".dup msg << "Please check the output above for any errors and make sure that `#{cmd}` is installed in your PATH and has proper permissions.\n\n" msg end diff --git a/activerecord/lib/active_record/timestamp.rb b/activerecord/lib/active_record/timestamp.rb index 55f3a194a9..dc4540eea6 100644 --- a/activerecord/lib/active_record/timestamp.rb +++ b/activerecord/lib/active_record/timestamp.rb @@ -126,7 +126,7 @@ module ActiveRecord self.class.send(:current_time_from_proper_timezone) end - def max_updated_column_timestamp(timestamp_names = self.class.send(:timestamp_attributes_for_update)) + def max_updated_column_timestamp(timestamp_names = timestamp_attributes_for_update_in_model) timestamp_names .map { |attr| self[attr] } .compact diff --git a/activerecord/lib/active_record/transactions.rb b/activerecord/lib/active_record/transactions.rb index 45795fa287..463bb1f314 100644 --- a/activerecord/lib/active_record/transactions.rb +++ b/activerecord/lib/active_record/transactions.rb @@ -490,7 +490,7 @@ module ActiveRecord def update_attributes_from_transaction_state(transaction_state) if transaction_state && transaction_state.finalized? restore_transaction_record_state if transaction_state.rolledback? - clear_transaction_record_state + clear_transaction_record_state if transaction_state.fully_completed? end end end |