diff options
Diffstat (limited to 'activerecord/lib')
42 files changed, 823 insertions, 692 deletions
diff --git a/activerecord/lib/active_record/association_relation.rb b/activerecord/lib/active_record/association_relation.rb index 403667fb70..4c538ef2bd 100644 --- a/activerecord/lib/active_record/association_relation.rb +++ b/activerecord/lib/active_record/association_relation.rb @@ -31,9 +31,9 @@ module ActiveRecord private def exec_queries - super do |r| - @association.set_inverse_instance r - yield r if block_given? + super do |record| + @association.set_inverse_instance_from_queries(record) + yield record if block_given? end end end diff --git a/activerecord/lib/active_record/associations/association.rb b/activerecord/lib/active_record/associations/association.rb index 44596f4424..4686b9f517 100644 --- a/activerecord/lib/active_record/associations/association.rb +++ b/activerecord/lib/active_record/associations/association.rb @@ -79,18 +79,6 @@ module ActiveRecord target_scope.merge!(association_scope) end - # The scope for this association. - # - # Note that the association_scope is merged into the target_scope only when the - # scope method is called. This is because at that point the call may be surrounded - # by scope.scoping { ... } or with_scope { ... } etc, which affects the scope which - # actually gets built. - def association_scope - if klass - @association_scope ||= AssociationScope.scope(self) - end - end - def reset_scope @association_scope = nil end @@ -103,6 +91,13 @@ module ActiveRecord record end + def set_inverse_instance_from_queries(record) + if inverse = inverse_association_for(record) + inverse.inversed_from_queries(owner) + end + record + end + # Remove the inverse association, if possible def remove_inverse_instance(record) if inverse = inverse_association_for(record) @@ -114,6 +109,7 @@ module ActiveRecord self.target = record @inversed = !!record end + alias :inversed_from_queries :inversed_from # Returns the class of the target. belongs_to polymorphic overrides this to look at the # polymorphic_type field on the owner. @@ -121,12 +117,6 @@ module ActiveRecord reflection.klass end - # Can be overridden (i.e. in ThroughAssociation) to merge in other scopes (i.e. the - # through association's scope) - def target_scope - AssociationRelation.create(klass, self).merge!(klass.all) - end - def extensions extensions = klass.default_extensions | reflection.extensions @@ -187,6 +177,24 @@ module ActiveRecord end private + # The scope for this association. + # + # Note that the association_scope is merged into the target_scope only when the + # scope method is called. This is because at that point the call may be surrounded + # by scope.scoping { ... } or unscoped { ... } etc, which affects the scope which + # actually gets built. + def association_scope + if klass + @association_scope ||= AssociationScope.scope(self) + end + end + + # Can be overridden (i.e. in ThroughAssociation) to merge in other scopes (i.e. the + # through association's scope) + def target_scope + AssociationRelation.create(klass, self).merge!(klass.all) + end + def scope_for_create scope.scope_for_create end diff --git a/activerecord/lib/active_record/associations/builder/collection_association.rb b/activerecord/lib/active_record/associations/builder/collection_association.rb index 35a72c3850..ff57c40121 100644 --- a/activerecord/lib/active_record/associations/builder/collection_association.rb +++ b/activerecord/lib/active_record/associations/builder/collection_association.rb @@ -24,7 +24,7 @@ module ActiveRecord::Associations::Builder # :nodoc: if block_given? extension_module_name = "#{model.name.demodulize}#{name.to_s.camelize}AssociationExtension" extension = Module.new(&Proc.new) - model.parent.const_set(extension_module_name, extension) + model.module_parent.const_set(extension_module_name, extension) end end diff --git a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb index e3070e0472..0140aa15c8 100644 --- a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb +++ b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb @@ -63,7 +63,7 @@ module ActiveRecord::Associations::Builder # :nodoc: def middle_reflection(join_model) middle_name = [lhs_model.name.downcase.pluralize, - association_name].join("_".freeze).gsub("::".freeze, "_".freeze).to_sym + association_name].join("_").gsub("::", "_").to_sym middle_options = middle_options join_model HasMany.create_reflection(lhs_model, 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 617956c768..f84ac65fa2 100644 --- a/activerecord/lib/active_record/associations/has_many_through_association.rb +++ b/activerecord/lib/active_record/associations/has_many_through_association.rb @@ -21,20 +21,6 @@ module ActiveRecord super end - def concat_records(records) - ensure_not_nested - - records = super(records, true) - - if owner.new_record? && records - records.flatten.each do |record| - build_through_record(record) - end - end - - records - end - def insert_record(record, validate = true, raise = false) ensure_not_nested @@ -48,6 +34,20 @@ module ActiveRecord end private + def concat_records(records) + ensure_not_nested + + records = super(records, true) + + if owner.new_record? && records + records.flatten.each do |record| + build_through_record(record) + end + end + + records + end + # The through record (built with build_record) is temporarily cached # so that it may be reused if insert_record is subsequently called. # diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb index a8f94b574d..8997579527 100644 --- a/activerecord/lib/active_record/associations/preloader.rb +++ b/activerecord/lib/active_record/associations/preloader.rb @@ -98,12 +98,11 @@ module ActiveRecord # Loads all the given data into +records+ for the +association+. def preloaders_on(association, records, scope, polymorphic_parent = false) - if association.respond_to?(:to_hash) + case association + when Hash preloaders_for_hash(association, records, scope, polymorphic_parent) - elsif association.is_a?(Symbol) + when Symbol, String preloaders_for_one(association, records, scope, polymorphic_parent) - elsif association.respond_to?(:to_str) - preloaders_for_one(association.to_sym, records, scope, polymorphic_parent) else raise ArgumentError, "#{association.inspect} was not recognized for preload" end @@ -111,23 +110,21 @@ module ActiveRecord def preloaders_for_hash(association, records, scope, polymorphic_parent) association.flat_map { |parent, child| - loaders = preloaders_for_one parent, records, scope, polymorphic_parent - - recs = loaders.flat_map(&:preloaded_records).uniq - - reflection = records.first.class._reflect_on_association(parent) - polymorphic_parent = reflection && reflection.options[:polymorphic] - - loaders.concat Array.wrap(child).flat_map { |assoc| - preloaders_on assoc, recs, scope, polymorphic_parent - } - loaders + grouped_records(parent, records, polymorphic_parent).flat_map do |reflection, reflection_records| + loaders = preloaders_for_reflection(reflection, reflection_records, scope) + recs = loaders.flat_map(&:preloaded_records) + child_polymorphic_parent = reflection && reflection.options[:polymorphic] + loaders.concat Array.wrap(child).flat_map { |assoc| + preloaders_on assoc, recs, scope, child_polymorphic_parent + } + loaders + end } end # Loads all the given data into +records+ for a singular +association+. # - # Functions by instantiating a preloader class such as Preloader::HasManyThrough and + # Functions by instantiating a preloader class such as Preloader::Association and # call the +run+ method for each passed in class in the +records+ argument. # # Not all records have the same class, so group then preload group on the reflection @@ -138,12 +135,17 @@ module ActiveRecord # classes, depending on the polymorphic_type field. So we group by the classes as # well. def preloaders_for_one(association, records, scope, polymorphic_parent) - grouped_records(association, records, polymorphic_parent).flat_map do |reflection, klasses| - klasses.map do |rhs_klass, rs| - loader = preloader_for(reflection, rs).new(rhs_klass, rs, reflection, scope) - loader.run self - loader + grouped_records(association, records, polymorphic_parent) + .flat_map do |reflection, reflection_records| + preloaders_for_reflection reflection, reflection_records, scope end + end + + def preloaders_for_reflection(reflection, records, scope) + records.group_by { |record| record.association(reflection.name).klass }.map do |rhs_klass, rs| + loader = preloader_for(reflection, rs).new(rhs_klass, rs, reflection, scope) + loader.run self + loader end end @@ -151,11 +153,9 @@ module ActiveRecord h = {} records.each do |record| next unless record - next if polymorphic_parent && !record.class._reflect_on_association(association) - assoc = record.association(association) - next unless assoc.klass - klasses = h[assoc.reflection] ||= {} - (klasses[assoc.klass] ||= []) << record + reflection = record.class._reflect_on_association(association) + next if polymorphic_parent && !reflection || !record.association(association).klass + (h[reflection] ||= []) << record end h end diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb index 42eba27b2a..221ebea8ea 100644 --- a/activerecord/lib/active_record/attribute_methods.rb +++ b/activerecord/lib/active_record/attribute_methods.rb @@ -272,9 +272,9 @@ module ActiveRecord case name when :to_partial_path - name = "to_partial_path".freeze + name = "to_partial_path" when :to_model - name = "to_model".freeze + name = "to_model" else name = name.to_s end diff --git a/activerecord/lib/active_record/attribute_methods/read.rb b/activerecord/lib/active_record/attribute_methods/read.rb index 0f7bcba564..903fe86e04 100644 --- a/activerecord/lib/active_record/attribute_methods/read.rb +++ b/activerecord/lib/active_record/attribute_methods/read.rb @@ -27,7 +27,7 @@ module ActiveRecord # Making it frozen means that it doesn't get duped when used to # key the @attributes in read_attribute. def define_method_attribute(name) - safe_name = name.unpack1("h*".freeze) + safe_name = name.unpack1("h*") temp_method = "__temp__#{safe_name}" ActiveRecord::AttributeMethods::AttrNames.set_name_cache safe_name, name @@ -59,7 +59,7 @@ module ActiveRecord end primary_key = self.class.primary_key - name = primary_key if name == "id".freeze && primary_key + name = primary_key if name == "id" && primary_key sync_with_transaction_state if name == primary_key _read_attribute(name, &block) end diff --git a/activerecord/lib/active_record/attribute_methods/write.rb b/activerecord/lib/active_record/attribute_methods/write.rb index c7521422bb..62743bc9d8 100644 --- a/activerecord/lib/active_record/attribute_methods/write.rb +++ b/activerecord/lib/active_record/attribute_methods/write.rb @@ -13,7 +13,7 @@ module ActiveRecord private def define_method_attribute=(name) - safe_name = name.unpack1("h*".freeze) + safe_name = name.unpack1("h*") ActiveRecord::AttributeMethods::AttrNames.set_name_cache safe_name, name sync_with_transaction_state = "sync_with_transaction_state" if name == primary_key @@ -40,7 +40,7 @@ module ActiveRecord end primary_key = self.class.primary_key - name = primary_key if name == "id".freeze && primary_key + name = primary_key if name == "id" && primary_key sync_with_transaction_state if name == primary_key _write_attribute(name, value) end 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 feacdf6931..0059f0b773 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -410,16 +410,6 @@ module ActiveRecord end end - # The default strategy for an UPDATE with joins is to use a subquery. This doesn't work - # on MySQL (even when aliasing the tables), but MySQL allows using JOIN directly in - # an UPDATE statement, so in the MySQL adapters we redefine this to do that. - def join_to_update(update, select, key) # :nodoc: - subselect = subquery_for(key, select) - - update.where key.in(subselect) - end - alias join_to_delete join_to_update - private def default_insert_value(column) Arel.sql("DEFAULT") @@ -460,13 +450,6 @@ module ActiveRecord total_sql.join(";\n") end - # Returns a subquery for the given key using the join information. - def subquery_for(key, select) - subselect = select.clone - subselect.projections = [key] - subselect - end - # Returns an ActiveRecord::Result instance. def select(sql, name = nil, binds = []) exec_query(sql, name, binds, prepare: false) diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb index 98b1348135..07e86afe9a 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb @@ -60,7 +60,7 @@ module ActiveRecord # Quotes a string, escaping any ' (single quote) and \ (backslash) # characters. def quote_string(s) - s.gsub('\\'.freeze, '\&\&'.freeze).gsub("'".freeze, "''".freeze) # ' (for ruby-mode) + s.gsub('\\', '\&\&').gsub("'", "''") # ' (for ruby-mode) end # Quotes the column name. Defaults to no quoting. @@ -95,7 +95,7 @@ module ActiveRecord end def quoted_true - "TRUE".freeze + "TRUE" end def unquoted_true @@ -103,7 +103,7 @@ module ActiveRecord end def quoted_false - "FALSE".freeze + "FALSE" end def unquoted_false diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb index 582ac516c7..015204c056 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -527,7 +527,9 @@ module ActiveRecord # # See TableDefinition#column for details of the options you can use. def column(column_name, type, options = {}) + index_options = options.delete(:index) @base.add_column(name, column_name, type, options) + index(column_name, index_options.is_a?(Hash) ? index_options : {}) if index_options end # Checks to see if a column exists. diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb index 79aafc956f..fa10f18cb7 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -65,7 +65,7 @@ module ActiveRecord # Most of the methods in the adapter are useful during migrations. Most # notably, the instance methods provided by SchemaStatements are very useful. class AbstractAdapter - ADAPTER_NAME = "Abstract".freeze + ADAPTER_NAME = "Abstract" include ActiveSupport::Callbacks define_callbacks :checkout, :checkin 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 09242a0f14..d40f38fb77 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -223,18 +223,6 @@ module ActiveRecord execute "ROLLBACK" end - # In the simple case, MySQL allows us to place JOINs directly into the UPDATE - # query. However, this does not allow for LIMIT, OFFSET and ORDER. To support - # these, we must use a subquery. - def join_to_update(update, select, key) # :nodoc: - if select.limit || select.offset || select.orders.any? - super - else - update.table select.source - update.wheres = select.constraints - end - end - def empty_insert_statement_value(primary_key = nil) "VALUES ()" end @@ -733,20 +721,6 @@ module ActiveRecord [remove_column_for_alter(table_name, :updated_at), remove_column_for_alter(table_name, :created_at)] end - # MySQL is too stupid to create a temporary table for use subquery, so we have - # to give it some prompting in the form of a subsubquery. Ugh! - def subquery_for(key, select) - subselect = select.clone - subselect.projections = [key] - - # Materialize subquery by adding distinct - # to work with MySQL 5.7.6 which sets optimizer_switch='derived_merge=on' - subselect.distinct unless select.limit || select.offset || select.orders.any? - - key_name = quote_column_name(key.name) - Arel::SelectManager.new(subselect.as("__active_record_temp")).project(Arel.sql(key_name)) - end - def supports_rename_index? mariadb? ? false : version >= "5.7.6" end diff --git a/activerecord/lib/active_record/connection_adapters/mysql/quoting.rb b/activerecord/lib/active_record/connection_adapters/mysql/quoting.rb index be038403b8..75564a61d6 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql/quoting.rb @@ -5,7 +5,7 @@ module ActiveRecord module MySQL module Quoting # :nodoc: def quote_column_name(name) - @quoted_column_names[name] ||= "`#{super.gsub('`', '``')}`".freeze + @quoted_column_names[name] ||= "`#{super.gsub('`', '``')}`" end def quote_table_name(name) diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb index 10c8c8e8ab..9bdaa00336 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb @@ -14,7 +14,7 @@ module ActiveRecord config[:flags] ||= 0 if config[:flags].kind_of? Array - config[:flags].push "FOUND_ROWS".freeze + config[:flags].push "FOUND_ROWS" else config[:flags] |= Mysql2::Client::FOUND_ROWS end @@ -32,7 +32,7 @@ module ActiveRecord module ConnectionAdapters class Mysql2Adapter < AbstractMysqlAdapter - ADAPTER_NAME = "Mysql2".freeze + ADAPTER_NAME = "Mysql2" include MySQL::DatabaseStatements diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb index 79351bc3a4..83c21ba6ea 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb @@ -19,10 +19,10 @@ module ActiveRecord def run(records) nodes = records.reject { |row| @store.key? row["oid"].to_i } mapped = nodes.extract! { |row| @store.key? row["typname"] } - ranges = nodes.extract! { |row| row["typtype"] == "r".freeze } - enums = nodes.extract! { |row| row["typtype"] == "e".freeze } - domains = nodes.extract! { |row| row["typtype"] == "d".freeze } - arrays = nodes.extract! { |row| row["typinput"] == "array_in".freeze } + ranges = nodes.extract! { |row| row["typtype"] == "r" } + enums = nodes.extract! { |row| row["typtype"] == "e" } + domains = nodes.extract! { |row| row["typtype"] == "d" } + arrays = nodes.extract! { |row| row["typinput"] == "array_in" } composites = nodes.extract! { |row| row["typelem"].to_i != 0 } mapped.each { |row| register_mapped_type(row) } diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb b/activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb index ffd3be26b0..cd69d28139 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/type_metadata.rb @@ -17,7 +17,7 @@ module ActiveRecord end def sql_type - super.gsub(/\[\]$/, "".freeze) + super.gsub(/\[\]$/, "") end def ==(other) diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 11593f71c9..bc6eb11572 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -78,7 +78,7 @@ module ActiveRecord # In addition, default connection parameters of libpq can be set per environment variables. # See https://www.postgresql.org/docs/current/static/libpq-envars.html . class PostgreSQLAdapter < AbstractAdapter - ADAPTER_NAME = "PostgreSQL".freeze + ADAPTER_NAME = "PostgreSQL" NATIVE_DATABASE_TYPES = { primary_key: "bigserial primary key", @@ -448,7 +448,7 @@ module ActiveRecord end end - def get_oid_type(oid, fmod, column_name, sql_type = "".freeze) + def get_oid_type(oid, fmod, column_name, sql_type = "") if !type_map.key?(oid) load_additional_types([oid]) end @@ -537,13 +537,13 @@ module ActiveRecord # Quoted types when /\A[\(B]?'(.*)'.*::"?([\w. ]+)"?(?:\[\])?\z/m # The default 'now'::date is CURRENT_DATE - if $1 == "now".freeze && $2 == "date".freeze + if $1 == "now" && $2 == "date" nil else - $1.gsub("''".freeze, "'".freeze) + $1.gsub("''", "'") end # Boolean types - when "true".freeze, "false".freeze + when "true", "false" default # Numeric types when /\A\(?(-?\d+(\.\d*)?)\)?(::bigint)?\z/ @@ -655,7 +655,7 @@ module ActiveRecord # # Check here for more details: # https://git.postgresql.org/gitweb/?p=postgresql.git;a=blob;f=src/backend/utils/cache/plancache.c#l573 - CACHED_PLAN_HEURISTIC = "cached plan must not change result type".freeze + CACHED_PLAN_HEURISTIC = "cached plan must not change result type" def is_cached_plan_failure?(e) pgerror = e.cause code = pgerror.result.result_error_field(PG::PG_DIAG_SQLSTATE) diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3/quoting.rb b/activerecord/lib/active_record/connection_adapters/sqlite3/quoting.rb index abedf01f10..b2dcdb5373 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3/quoting.rb @@ -13,7 +13,7 @@ module ActiveRecord end def quote_column_name(name) - @quoted_column_names[name] ||= %Q("#{super.gsub('"', '""')}").freeze + @quoted_column_names[name] ||= %Q("#{super.gsub('"', '""')}") end def quoted_time(value) @@ -26,19 +26,19 @@ module ActiveRecord end def quoted_true - ActiveRecord::ConnectionAdapters::SQLite3Adapter.represent_boolean_as_integer ? "1".freeze : "'t'".freeze + ActiveRecord::ConnectionAdapters::SQLite3Adapter.represent_boolean_as_integer ? "1" : "'t'" end def unquoted_true - ActiveRecord::ConnectionAdapters::SQLite3Adapter.represent_boolean_as_integer ? 1 : "t".freeze + ActiveRecord::ConnectionAdapters::SQLite3Adapter.represent_boolean_as_integer ? 1 : "t" end def quoted_false - ActiveRecord::ConnectionAdapters::SQLite3Adapter.represent_boolean_as_integer ? "0".freeze : "'f'".freeze + ActiveRecord::ConnectionAdapters::SQLite3Adapter.represent_boolean_as_integer ? "0" : "'f'" end def unquoted_false - ActiveRecord::ConnectionAdapters::SQLite3Adapter.represent_boolean_as_integer ? 0 : "f".freeze + ActiveRecord::ConnectionAdapters::SQLite3Adapter.represent_boolean_as_integer ? 0 : "f" end private diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index baa0a29afd..81882f6cc1 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -56,7 +56,7 @@ module ActiveRecord # # * <tt>:database</tt> - Path to the database file. class SQLite3Adapter < AbstractAdapter - ADAPTER_NAME = "SQLite".freeze + ADAPTER_NAME = "SQLite" include SQLite3::Quoting include SQLite3::SchemaStatements diff --git a/activerecord/lib/active_record/fixture_set/model_metadata.rb b/activerecord/lib/active_record/fixture_set/model_metadata.rb new file mode 100644 index 0000000000..edc03939c8 --- /dev/null +++ b/activerecord/lib/active_record/fixture_set/model_metadata.rb @@ -0,0 +1,40 @@ +# frozen_string_literal: true + +module ActiveRecord + class FixtureSet + class ModelMetadata # :nodoc: + def initialize(model_class, table_name) + @model_class = model_class + @table_name = table_name + end + + def primary_key_name + @primary_key_name ||= @model_class && @model_class.primary_key + end + + def primary_key_type + @primary_key_type ||= @model_class && @model_class.type_for_attribute(@model_class.primary_key).type + end + + def has_primary_key_column? + @has_primary_key_column ||= primary_key_name && + @model_class.columns.any? { |col| col.name == primary_key_name } + end + + def timestamp_column_names + @timestamp_column_names ||= + %w(created_at created_on updated_at updated_on) & column_names + end + + def inheritance_column_name + @inheritance_column_name ||= @model_class && @model_class.inheritance_column + end + + private + + def column_names + @column_names ||= @model_class.connection.columns(@table_name).collect(&:name) + end + end + end +end diff --git a/activerecord/lib/active_record/fixture_set/render_context.rb b/activerecord/lib/active_record/fixture_set/render_context.rb new file mode 100644 index 0000000000..c90b5343dc --- /dev/null +++ b/activerecord/lib/active_record/fixture_set/render_context.rb @@ -0,0 +1,17 @@ +# frozen_string_literal: true + +# NOTE: This class has to be defined in compact style in +# order for rendering context subclassing to work correctly. +class ActiveRecord::FixtureSet::RenderContext # :nodoc: + def self.create_subclass + Class.new(ActiveRecord::FixtureSet.context_class) do + def get_binding + binding() + end + + def binary(path) + %(!!binary "#{Base64.strict_encode64(File.read(path))}") + end + end + end +end diff --git a/activerecord/lib/active_record/fixture_set/table_row.rb b/activerecord/lib/active_record/fixture_set/table_row.rb new file mode 100644 index 0000000000..5f72c1df38 --- /dev/null +++ b/activerecord/lib/active_record/fixture_set/table_row.rb @@ -0,0 +1,79 @@ +# frozen_string_literal: true + +module ActiveRecord + class FixtureSet + class TableRow # :nodoc: + def initialize(fixture, table_rows:, label:, now:) + @table_rows = table_rows + @label = label + @now = now + @row = fixture.to_hash + fill_row_model_attributes + end + + def to_hash + @row + end + + private + + def model_metadata + @table_rows.model_metadata + end + + def model_class + @table_rows.model_class + end + + def fill_row_model_attributes + return unless model_class + fill_timestamps + interpolate_label + generate_primary_key + resolve_enums + @table_rows.resolve_sti_reflections(@row) + end + + def reflection_class + @reflection_class ||= if @row.include?(model_metadata.inheritance_column_name) + @row[model_metadata.inheritance_column_name].constantize rescue model_class + else + model_class + end + end + + def fill_timestamps + # fill in timestamp columns if they aren't specified and the model is set to record_timestamps + if model_class.record_timestamps + model_metadata.timestamp_column_names.each do |c_name| + @row[c_name] = @now unless @row.key?(c_name) + end + end + end + + def interpolate_label + # interpolate the fixture label + @row.each do |key, value| + @row[key] = value.gsub("$LABEL", @label.to_s) if value.is_a?(String) + end + end + + def generate_primary_key + # generate a primary key if necessary + if model_metadata.has_primary_key_column? && !@row.include?(model_metadata.primary_key_name) + @row[model_metadata.primary_key_name] = ActiveRecord::FixtureSet.identify( + @label, model_metadata.primary_key_type + ) + end + end + + def resolve_enums + model_class.defined_enums.each do |name, values| + if @row.include?(name) + @row[name] = values.fetch(@row[name], @row[name]) + end + end + end + end + end +end diff --git a/activerecord/lib/active_record/fixture_set/table_rows.rb b/activerecord/lib/active_record/fixture_set/table_rows.rb new file mode 100644 index 0000000000..e8335a2e10 --- /dev/null +++ b/activerecord/lib/active_record/fixture_set/table_rows.rb @@ -0,0 +1,129 @@ +# frozen_string_literal: true + +require "active_record/fixture_set/table_row" +require "active_record/fixture_set/model_metadata" + +module ActiveRecord + class FixtureSet + class TableRows # :nodoc: + class ReflectionProxy # :nodoc: + def initialize(association) + @association = association + end + + def join_table + @association.join_table + end + + def name + @association.name + end + + def primary_key_type + @association.klass.type_for_attribute(@association.klass.primary_key).type + end + end + + class HasManyThroughProxy < ReflectionProxy # :nodoc: + def rhs_key + @association.foreign_key + end + + def lhs_key + @association.through_reflection.foreign_key + end + + def join_table + @association.through_reflection.table_name + end + end + + def initialize(table_name, model_class:, fixtures:, config:) + @table_name = table_name + @model_class = model_class + + # track any join tables we need to insert later + @tables = Hash.new { |h, table| h[table] = [] } + + build_table_rows_from(fixtures, config) + end + + attr_reader :table_name, :model_class + + def to_hash + @tables.transform_values { |rows| rows.map(&:to_hash) } + end + + def model_metadata + @model_metadata ||= ModelMetadata.new(model_class, table_name) + end + + def resolve_sti_reflections(row) + # If STI is used, find the correct subclass for association reflection + reflection_class = reflection_class_for(row) + + reflection_class._reflections.each_value do |association| + case association.macro + when :belongs_to + # Do not replace association name with association foreign key if they are named the same + fk_name = (association.options[:foreign_key] || "#{association.name}_id").to_s + + if association.name.to_s != fk_name && value = row.delete(association.name.to_s) + if association.polymorphic? && value.sub!(/\s*\(([^\)]*)\)\s*$/, "") + # support polymorphic belongs_to as "label (Type)" + row[association.foreign_type] = $1 + end + + fk_type = reflection_class.type_for_attribute(fk_name).type + row[fk_name] = ActiveRecord::FixtureSet.identify(value, fk_type) + end + when :has_many + if association.options[:through] + add_join_records(row, HasManyThroughProxy.new(association)) + end + end + end + end + + private + + def build_table_rows_from(fixtures, config) + now = config.default_timezone == :utc ? Time.now.utc : Time.now + + @tables[table_name] = fixtures.map do |label, fixture| + TableRow.new( + fixture, + table_rows: self, + label: label, + now: now, + ) + end + end + + def reflection_class_for(row) + if row.include?(model_metadata.inheritance_column_name) + row[model_metadata.inheritance_column_name].constantize rescue model_class + else + model_class + end + end + + def add_join_records(row, association) + # This is the case when the join table has no fixtures file + if (targets = row.delete(association.name.to_s)) + table_name = association.join_table + column_type = association.primary_key_type + lhs_key = association.lhs_key + rhs_key = association.rhs_key + + targets = targets.is_a?(Array) ? targets : targets.split(/\s*,\s*/) + joins = targets.map do |target| + { lhs_key => row[model_metadata.primary_key_name], + rhs_key => ActiveRecord::FixtureSet.identify(target, column_type) } + end + @tables[table_name].concat(joins) + end + end + end + end +end diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb index 0d1fdcfb28..b090c76a38 100644 --- a/activerecord/lib/active_record/fixtures.rb +++ b/activerecord/lib/active_record/fixtures.rb @@ -7,6 +7,9 @@ require "set" require "active_support/dependencies" require "active_support/core_ext/digest/uuid" require "active_record/fixture_set/file" +require "active_record/fixture_set/render_context" +require "active_record/fixture_set/table_rows" +require "active_record/test_fixtures" require "active_record/errors" module ActiveRecord @@ -440,60 +443,6 @@ module ActiveRecord @@all_cached_fixtures = Hash.new { |h, k| h[k] = {} } - def self.default_fixture_model_name(fixture_set_name, config = ActiveRecord::Base) # :nodoc: - config.pluralize_table_names ? - fixture_set_name.singularize.camelize : - fixture_set_name.camelize - end - - def self.default_fixture_table_name(fixture_set_name, config = ActiveRecord::Base) # :nodoc: - "#{ config.table_name_prefix }"\ - "#{ fixture_set_name.tr('/', '_') }"\ - "#{ config.table_name_suffix }".to_sym - end - - def self.reset_cache - @@all_cached_fixtures.clear - end - - def self.cache_for_connection(connection) - @@all_cached_fixtures[connection] - end - - def self.fixture_is_cached?(connection, table_name) - cache_for_connection(connection)[table_name] - end - - def self.cached_fixtures(connection, keys_to_fetch = nil) - if keys_to_fetch - cache_for_connection(connection).values_at(*keys_to_fetch) - else - cache_for_connection(connection).values - end - end - - def self.cache_fixtures(connection, fixtures_map) - cache_for_connection(connection).update(fixtures_map) - end - - def self.instantiate_fixtures(object, fixture_set, load_instances = true) - if load_instances - fixture_set.each do |fixture_name, fixture| - begin - object.instance_variable_set "@#{fixture_name}", fixture.find - rescue FixtureClassNotFound - nil - end - end - end - end - - def self.instantiate_all_loaded_fixtures(object, load_instances = true) - all_loaded_fixtures.each_value do |fixture_set| - instantiate_fixtures(object, fixture_set, load_instances) - end - end - cattr_accessor :all_loaded_fixtures, default: {} class ClassCache @@ -502,14 +451,16 @@ module ActiveRecord @config = config # Remove string values that aren't constants or subclasses of AR - @class_names.delete_if { |klass_name, klass| !insert_class(@class_names, klass_name, klass) } + @class_names.delete_if do |klass_name, klass| + !insert_class(@class_names, klass_name, klass) + end end def [](fs_name) - @class_names.fetch(fs_name) { + @class_names.fetch(fs_name) do klass = default_fixture_model(fs_name, @config).safe_constantize insert_class(@class_names, fs_name, klass) - } + end end private @@ -528,38 +479,129 @@ module ActiveRecord end end - def self.create_fixtures(fixtures_directory, fixture_set_names, class_names = {}, config = ActiveRecord::Base) - fixture_set_names = Array(fixture_set_names).map(&:to_s) - class_names = ClassCache.new class_names, config + class << self + def default_fixture_model_name(fixture_set_name, config = ActiveRecord::Base) # :nodoc: + config.pluralize_table_names ? + fixture_set_name.singularize.camelize : + fixture_set_name.camelize + end - # FIXME: Apparently JK uses this. - connection = block_given? ? yield : ActiveRecord::Base.connection + def default_fixture_table_name(fixture_set_name, config = ActiveRecord::Base) # :nodoc: + "#{ config.table_name_prefix }"\ + "#{ fixture_set_name.tr('/', '_') }"\ + "#{ config.table_name_suffix }".to_sym + end - files_to_read = fixture_set_names.reject { |fs_name| - fixture_is_cached?(connection, fs_name) - } + def reset_cache + @@all_cached_fixtures.clear + end - unless files_to_read.empty? - fixtures_map = {} + def cache_for_connection(connection) + @@all_cached_fixtures[connection] + end + + def fixture_is_cached?(connection, table_name) + cache_for_connection(connection)[table_name] + end + + def cached_fixtures(connection, keys_to_fetch = nil) + if keys_to_fetch + cache_for_connection(connection).values_at(*keys_to_fetch) + else + cache_for_connection(connection).values + end + end + + def cache_fixtures(connection, fixtures_map) + cache_for_connection(connection).update(fixtures_map) + end + + def instantiate_fixtures(object, fixture_set, load_instances = true) + return unless load_instances + fixture_set.each do |fixture_name, fixture| + begin + object.instance_variable_set "@#{fixture_name}", fixture.find + rescue FixtureClassNotFound + nil + end + end + end + + def instantiate_all_loaded_fixtures(object, load_instances = true) + all_loaded_fixtures.each_value do |fixture_set| + instantiate_fixtures(object, fixture_set, load_instances) + end + end + + def create_fixtures(fixtures_directory, fixture_set_names, class_names = {}, config = ActiveRecord::Base) + fixture_set_names = Array(fixture_set_names).map(&:to_s) + class_names = ClassCache.new class_names, config + + # FIXME: Apparently JK uses this. + connection = block_given? ? yield : ActiveRecord::Base.connection + + fixture_files_to_read = fixture_set_names.reject do |fs_name| + fixture_is_cached?(connection, fs_name) + end + + if fixture_files_to_read.any? + fixtures_map = read_and_insert( + fixtures_directory, + fixture_files_to_read, + class_names, + connection, + ) + cache_fixtures(connection, fixtures_map) + end + cached_fixtures(connection, fixture_set_names) + end - 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 + # Returns a consistent, platform-independent identifier for +label+. + # Integer identifiers are values less than 2^30. UUIDs are RFC 4122 version 5 SHA-1 hashes. + def identify(label, column_type = :integer) + if column_type == :uuid + Digest::UUID.uuid_v5(Digest::UUID::OID_NAMESPACE, label.to_s) + else + Zlib.crc32(label.to_s) % MAX_ID + end + end + + # Superclass for the evaluation contexts used by ERB fixtures. + def context_class + @context_class ||= Class.new + end + + private + + def read_and_insert(fixtures_directory, fixture_files, class_names, connection) # :nodoc: + fixtures_map = {} + fixture_sets = fixture_files.map do |fixture_set_name| + klass = class_names[fixture_set_name] + conn = klass&.connection || connection + fixtures_map[fixture_set_name] = new( # ActiveRecord::FixtureSet.new conn, - fs_name, + fixture_set_name, klass, - ::File.join(fixtures_directory, fs_name)) + ::File.join(fixtures_directory, fixture_set_name) + ) end + update_all_loaded_fixtures(fixtures_map) - update_all_loaded_fixtures fixtures_map - fixture_sets_by_connection = fixture_sets.group_by { |fs| fs.model_class ? fs.model_class.connection : connection } + insert(fixture_sets, connection) + + fixtures_map + end + + def insert(fixture_sets, connection) # :nodoc: + fixture_sets_by_connection = fixture_sets.group_by do |fixture_set| + fixture_set.model_class&.connection || connection + end fixture_sets_by_connection.each do |conn, set| table_rows_for_connection = Hash.new { |h, k| h[k] = [] } - set.each do |fs| - fs.table_rows.each do |table, rows| + set.each do |fixture_set| + fixture_set.table_rows.each do |table, rows| table_rows_for_connection[table].unshift(*rows) end end @@ -570,31 +612,13 @@ module ActiveRecord 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 - # Returns a consistent, platform-independent identifier for +label+. - # Integer identifiers are values less than 2^30. UUIDs are RFC 4122 version 5 SHA-1 hashes. - def self.identify(label, column_type = :integer) - if column_type == :uuid - Digest::UUID.uuid_v5(Digest::UUID::OID_NAMESPACE, label.to_s) - else - Zlib.crc32(label.to_s) % MAX_ID + def update_all_loaded_fixtures(fixtures_map) # :nodoc: + all_loaded_fixtures.update(fixtures_map) end end - # Superclass for the evaluation contexts used by ERB fixtures. - def self.context_class - @context_class ||= Class.new - end - - def self.update_all_loaded_fixtures(fixtures_map) # :nodoc: - all_loaded_fixtures.update(fixtures_map) - end - attr_reader :table_name, :name, :fixtures, :model_class, :config def initialize(connection, name, class_name, path, config = ActiveRecord::Base) @@ -632,152 +656,18 @@ module ActiveRecord # Returns a hash of rows to be inserted. The key is the table, the value is # a list of rows to insert to that table. def table_rows - now = config.default_timezone == :utc ? Time.now.utc : Time.now - # allow a standard key to be used for doing defaults in YAML fixtures.delete("DEFAULTS") - # track any join tables we need to insert later - rows = Hash.new { |h, table| h[table] = [] } - - rows[table_name] = fixtures.map do |label, fixture| - row = fixture.to_hash - - if model_class - # fill in timestamp columns if they aren't specified and the model is set to record_timestamps - if model_class.record_timestamps - timestamp_column_names.each do |c_name| - row[c_name] = now unless row.key?(c_name) - end - end - - # interpolate the fixture label - row.each do |key, value| - row[key] = value.gsub("$LABEL", label.to_s) if value.is_a?(String) - end - - # generate a primary key if necessary - if has_primary_key_column? && !row.include?(primary_key_name) - row[primary_key_name] = ActiveRecord::FixtureSet.identify(label, primary_key_type) - end - - # Resolve enums - model_class.defined_enums.each do |name, values| - if row.include?(name) - row[name] = values.fetch(row[name], row[name]) - end - end - - # If STI is used, find the correct subclass for association reflection - reflection_class = - if row.include?(inheritance_column_name) - row[inheritance_column_name].constantize rescue model_class - else - model_class - end - - reflection_class._reflections.each_value do |association| - case association.macro - when :belongs_to - # Do not replace association name with association foreign key if they are named the same - fk_name = (association.options[:foreign_key] || "#{association.name}_id").to_s - - if association.name.to_s != fk_name && value = row.delete(association.name.to_s) - if association.polymorphic? && value.sub!(/\s*\(([^\)]*)\)\s*$/, "") - # support polymorphic belongs_to as "label (Type)" - row[association.foreign_type] = $1 - end - - fk_type = reflection_class.type_for_attribute(fk_name).type - row[fk_name] = ActiveRecord::FixtureSet.identify(value, fk_type) - end - when :has_many - if association.options[:through] - add_join_records(rows, row, HasManyThroughProxy.new(association)) - end - end - end - end - - row - end - rows - end - - class ReflectionProxy # :nodoc: - def initialize(association) - @association = association - end - - def join_table - @association.join_table - end - - def name - @association.name - end - - def primary_key_type - @association.klass.type_for_attribute(@association.klass.primary_key).type - end - end - - class HasManyThroughProxy < ReflectionProxy # :nodoc: - def rhs_key - @association.foreign_key - end - - def lhs_key - @association.through_reflection.foreign_key - end - - def join_table - @association.through_reflection.table_name - end + TableRows.new( + table_name, + model_class: model_class, + fixtures: fixtures, + config: config, + ).to_hash end private - def primary_key_name - @primary_key_name ||= model_class && model_class.primary_key - end - - def primary_key_type - @primary_key_type ||= model_class && model_class.type_for_attribute(model_class.primary_key).type - end - - def add_join_records(rows, row, association) - # This is the case when the join table has no fixtures file - if (targets = row.delete(association.name.to_s)) - table_name = association.join_table - column_type = association.primary_key_type - lhs_key = association.lhs_key - rhs_key = association.rhs_key - - targets = targets.is_a?(Array) ? targets : targets.split(/\s*,\s*/) - rows[table_name].concat targets.map { |target| - { lhs_key => row[primary_key_name], - rhs_key => ActiveRecord::FixtureSet.identify(target, column_type) } - } - end - end - - def has_primary_key_column? - @has_primary_key_column ||= primary_key_name && - model_class.columns.any? { |c| c.name == primary_key_name } - end - - def timestamp_column_names - @timestamp_column_names ||= - %w(created_at created_on updated_at updated_on) & column_names - end - - def inheritance_column_name - @inheritance_column_name ||= model_class && model_class.inheritance_column - end - - def column_names - @column_names ||= @connection.columns(@table_name).collect(&:name) - end def model_class=(class_name) if class_name.is_a?(Class) # TODO: Should be an AR::Base type class, or any? @@ -841,226 +731,9 @@ module ActiveRecord alias :to_hash :fixture def find - if model_class - model_class.unscoped do - model_class.find(fixture[model_class.primary_key]) - end - else - raise FixtureClassNotFound, "No class attached to find." - end - end - end -end - -module ActiveRecord - module TestFixtures - extend ActiveSupport::Concern - - def before_setup # :nodoc: - setup_fixtures - super - end - - def after_teardown # :nodoc: - super - teardown_fixtures - end - - included do - class_attribute :fixture_path, instance_writer: false - class_attribute :fixture_table_names, default: [] - class_attribute :fixture_class_names, default: {} - class_attribute :use_transactional_tests, default: true - class_attribute :use_instantiated_fixtures, default: false # true, false, or :no_instances - class_attribute :pre_loaded_fixtures, default: false - class_attribute :config, default: ActiveRecord::Base - class_attribute :lock_threads, default: true - end - - module ClassMethods - # Sets the model class for a fixture when the class name cannot be inferred from the fixture name. - # - # Examples: - # - # set_fixture_class some_fixture: SomeModel, - # 'namespaced/fixture' => Another::Model - # - # The keys must be the fixture names, that coincide with the short paths to the fixture files. - def set_fixture_class(class_names = {}) - self.fixture_class_names = fixture_class_names.merge(class_names.stringify_keys) - end - - def fixtures(*fixture_set_names) - if fixture_set_names.first == :all - raise StandardError, "No fixture path found. Please set `#{self}.fixture_path`." if fixture_path.blank? - fixture_set_names = Dir["#{fixture_path}/{**,*}/*.{yml}"].uniq - fixture_set_names.map! { |f| f[(fixture_path.to_s.size + 1)..-5] } - else - fixture_set_names = fixture_set_names.flatten.map(&:to_s) - end - - self.fixture_table_names |= fixture_set_names - setup_fixture_accessors(fixture_set_names) - end - - def setup_fixture_accessors(fixture_set_names = nil) - fixture_set_names = Array(fixture_set_names || fixture_table_names) - methods = Module.new do - fixture_set_names.each do |fs_name| - fs_name = fs_name.to_s - accessor_name = fs_name.tr("/", "_").to_sym - - define_method(accessor_name) do |*fixture_names| - force_reload = fixture_names.pop if fixture_names.last == true || fixture_names.last == :reload - return_single_record = fixture_names.size == 1 - fixture_names = @loaded_fixtures[fs_name].fixtures.keys if fixture_names.empty? - - @fixture_cache[fs_name] ||= {} - - instances = fixture_names.map do |f_name| - f_name = f_name.to_s if f_name.is_a?(Symbol) - @fixture_cache[fs_name].delete(f_name) if force_reload - - if @loaded_fixtures[fs_name][f_name] - @fixture_cache[fs_name][f_name] ||= @loaded_fixtures[fs_name][f_name].find - else - raise StandardError, "No fixture named '#{f_name}' found for fixture set '#{fs_name}'" - end - end - - return_single_record ? instances.first : instances - end - private accessor_name - end - end - include methods - end - - def uses_transaction(*methods) - @uses_transaction = [] unless defined?(@uses_transaction) - @uses_transaction.concat methods.map(&:to_s) - end - - def uses_transaction?(method) - @uses_transaction = [] unless defined?(@uses_transaction) - @uses_transaction.include?(method.to_s) - end - end - - def run_in_transaction? - use_transactional_tests && - !self.class.uses_transaction?(method_name) - end - - def setup_fixtures(config = ActiveRecord::Base) - if pre_loaded_fixtures && !use_transactional_tests - raise RuntimeError, "pre_loaded_fixtures requires use_transactional_tests" - end - - @fixture_cache = {} - @fixture_connections = [] - @@already_loaded_fixtures ||= {} - @connection_subscriber = nil - - # Load fixtures once and begin transaction. - if run_in_transaction? - if @@already_loaded_fixtures[self.class] - @loaded_fixtures = @@already_loaded_fixtures[self.class] - else - @loaded_fixtures = load_fixtures(config) - @@already_loaded_fixtures[self.class] = @loaded_fixtures - end - - # Begin transactions for connections already established - @fixture_connections = enlist_fixture_connections - @fixture_connections.each do |connection| - connection.begin_transaction joinable: false - connection.pool.lock_thread = true if lock_threads - end - - # When connections are established in the future, begin a transaction too - @connection_subscriber = ActiveSupport::Notifications.subscribe("!connection.active_record") do |_, _, _, _, payload| - spec_name = payload[:spec_name] if payload.key?(:spec_name) - - if spec_name - begin - connection = ActiveRecord::Base.connection_handler.retrieve_connection(spec_name) - rescue ConnectionNotEstablished - connection = nil - end - - if connection && !@fixture_connections.include?(connection) - connection.begin_transaction joinable: false - connection.pool.lock_thread = true if lock_threads - @fixture_connections << connection - end - end - end - - # Load fixtures for every test. - else - ActiveRecord::FixtureSet.reset_cache - @@already_loaded_fixtures[self.class] = nil - @loaded_fixtures = load_fixtures(config) - end - - # Instantiate fixtures for every test if requested. - instantiate_fixtures if use_instantiated_fixtures - end - - def teardown_fixtures - # Rollback changes if a transaction is active. - if run_in_transaction? - ActiveSupport::Notifications.unsubscribe(@connection_subscriber) if @connection_subscriber - @fixture_connections.each do |connection| - connection.rollback_transaction if connection.transaction_open? - connection.pool.lock_thread = false - end - @fixture_connections.clear - else - ActiveRecord::FixtureSet.reset_cache - end - - ActiveRecord::Base.clear_active_connections! - end - - def enlist_fixture_connections - ActiveRecord::Base.connection_handler.connection_pool_list.map(&:connection) - end - - private - def load_fixtures(config) - fixtures = ActiveRecord::FixtureSet.create_fixtures(fixture_path, fixture_table_names, fixture_class_names, config) - Hash[fixtures.map { |f| [f.name, f] }] - end - - def instantiate_fixtures - if pre_loaded_fixtures - raise RuntimeError, "Load fixtures before instantiating them." if ActiveRecord::FixtureSet.all_loaded_fixtures.empty? - ActiveRecord::FixtureSet.instantiate_all_loaded_fixtures(self, load_instances?) - else - raise RuntimeError, "Load fixtures before instantiating them." if @loaded_fixtures.nil? - @loaded_fixtures.each_value do |fixture_set| - ActiveRecord::FixtureSet.instantiate_fixtures(self, fixture_set, load_instances?) - end - end - end - - def load_instances? - use_instantiated_fixtures != :no_instances - end - end -end - -class ActiveRecord::FixtureSet::RenderContext # :nodoc: - def self.create_subclass - Class.new ActiveRecord::FixtureSet.context_class do - def get_binding - binding() - end - - def binary(path) - %(!!binary "#{Base64.strict_encode64(File.read(path))}") + raise FixtureClassNotFound, "No class attached to find." unless model_class + model_class.unscoped do + model_class.find(fixture[model_class.primary_key]) end end end diff --git a/activerecord/lib/active_record/inheritance.rb b/activerecord/lib/active_record/inheritance.rb index b25057acda..138fd1cf53 100644 --- a/activerecord/lib/active_record/inheritance.rb +++ b/activerecord/lib/active_record/inheritance.rb @@ -180,7 +180,7 @@ module ActiveRecord # Returns the class type of the record using the current module as a prefix. So descendants of # MyApp::Business::Account would appear as MyApp::Business::AccountSubclass. def compute_type(type_name) - if type_name.start_with?("::".freeze) + if type_name.start_with?("::") # If the type is prefixed with a scope operator then we assume that # the type_name is an absolute reference. ActiveSupport::Dependencies.constantize(type_name) diff --git a/activerecord/lib/active_record/integration.rb b/activerecord/lib/active_record/integration.rb index 6cf26a9792..456689ec6d 100644 --- a/activerecord/lib/active_record/integration.rb +++ b/activerecord/lib/active_record/integration.rb @@ -60,7 +60,7 @@ module ActiveRecord # the cache key will also include a version. # # Product.cache_versioning = false - # Person.find(5).cache_key # => "people/5-20071224150000" (updated_at available) + # Product.find(5).cache_key # => "products/5-20071224150000" (updated_at available) def cache_key(*timestamp_names) if new_record? "#{model_name.cache_key}/new" diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index d712d4b3cf..6e5a610642 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -140,8 +140,8 @@ module ActiveRecord end class ConcurrentMigrationError < MigrationError #:nodoc: - DEFAULT_MESSAGE = "Cannot run migrations because another migration process is currently running.".freeze - RELEASE_LOCK_FAILED_MESSAGE = "Failed to release advisory lock".freeze + DEFAULT_MESSAGE = "Cannot run migrations because another migration process is currently running." + RELEASE_LOCK_FAILED_MESSAGE = "Failed to release advisory lock" def initialize(message = DEFAULT_MESSAGE) super diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb index 9b985e049b..5a4a1fb969 100644 --- a/activerecord/lib/active_record/model_schema.rb +++ b/activerecord/lib/active_record/model_schema.rb @@ -218,11 +218,11 @@ module ActiveRecord end def full_table_name_prefix #:nodoc: - (parents.detect { |p| p.respond_to?(:table_name_prefix) } || self).table_name_prefix + (module_parents.detect { |p| p.respond_to?(:table_name_prefix) } || self).table_name_prefix end def full_table_name_suffix #:nodoc: - (parents.detect { |p| p.respond_to?(:table_name_suffix) } || self).table_name_suffix + (module_parents.detect { |p| p.respond_to?(:table_name_suffix) } || self).table_name_suffix end # The array of names of environments where destructive actions should be prohibited. By default, @@ -503,9 +503,9 @@ module ActiveRecord def compute_table_name if base_class? # Nested classes are prefixed with singular parent table name. - if parent < Base && !parent.abstract_class? - contained = parent.table_name - contained = contained.singularize if parent.pluralize_table_names + if module_parent < Base && !module_parent.abstract_class? + contained = module_parent.table_name + contained = contained.singularize if module_parent.pluralize_table_names contained += "_" end diff --git a/activerecord/lib/active_record/railtie.rb b/activerecord/lib/active_record/railtie.rb index 81ad9ef3a2..538659d6bd 100644 --- a/activerecord/lib/active_record/railtie.rb +++ b/activerecord/lib/active_record/railtie.rb @@ -168,21 +168,7 @@ end_error initializer "active_record.initialize_database" do ActiveSupport.on_load(:active_record) do self.configurations = Rails.application.config.database_configuration - - begin - establish_connection - rescue ActiveRecord::NoDatabaseError - warn <<-end_warning -Oops - You have a database configured, but it doesn't exist yet! - -Here's how to get started: - - 1. Configure your database in config/database.yml. - 2. Run `rails db:create` to create the database. - 3. Run `rails db:setup` to load your database schema. -end_warning - raise - end + establish_connection end end diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 5bad5bfcc2..d5b6082d13 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -348,7 +348,12 @@ module ActiveRecord end stmt = Arel::UpdateManager.new - stmt.table(table) + stmt.table(arel.join_sources.empty? ? table : arel.source) + stmt.key = arel_attribute(primary_key) + stmt.take(arel.limit) + stmt.offset(arel.offset) + stmt.order(*arel.orders) + stmt.wheres = arel.constraints if updates.is_a?(Hash) stmt.set _substitute_values(updates) @@ -356,15 +361,6 @@ module ActiveRecord stmt.set Arel.sql(klass.sanitize_sql_for_assignment(updates, table.name)) end - if has_join_values? || offset_value - @klass.connection.join_to_update(stmt, arel, arel_attribute(primary_key)) - else - stmt.key = arel_attribute(primary_key) - stmt.take(arel.limit) - stmt.order(*arel.orders) - stmt.wheres = arel.constraints - end - @klass.connection.update stmt, "#{@klass} Update All" end @@ -482,16 +478,12 @@ module ActiveRecord end stmt = Arel::DeleteManager.new - stmt.from(table) - - if has_join_values? || offset_value - @klass.connection.join_to_delete(stmt, arel, arel_attribute(primary_key)) - else - stmt.key = arel_attribute(primary_key) - stmt.take(arel.limit) - stmt.order(*arel.orders) - stmt.wheres = arel.constraints - end + stmt.from(arel.join_sources.empty? ? table : arel.source) + stmt.key = arel_attribute(primary_key) + stmt.take(arel.limit) + stmt.offset(arel.offset) + stmt.order(*arel.orders) + stmt.wheres = arel.constraints affected = @klass.connection.delete(stmt, "#{@klass} Destroy") @@ -646,10 +638,6 @@ module ActiveRecord end end - def has_join_values? - joins_values.any? || left_outer_joins_values.any? - end - def exec_queries(&block) skip_query_cache_if_necessary do @records = diff --git a/activerecord/lib/active_record/relation/delegation.rb b/activerecord/lib/active_record/relation/delegation.rb index 488f71cdde..8f657840f5 100644 --- a/activerecord/lib/active_record/relation/delegation.rb +++ b/activerecord/lib/active_record/relation/delegation.rb @@ -17,7 +17,7 @@ module ActiveRecord delegate = Class.new(klass) { include ClassSpecificRelation } - mangled_name = klass.name.gsub("::".freeze, "_".freeze) + mangled_name = klass.name.gsub("::", "_") const_set mangled_name, delegate private_constant mangled_name diff --git a/activerecord/lib/active_record/relation/predicate_builder.rb b/activerecord/lib/active_record/relation/predicate_builder.rb index f734cd0ad8..b59ff912fe 100644 --- a/activerecord/lib/active_record/relation/predicate_builder.rb +++ b/activerecord/lib/active_record/relation/predicate_builder.rb @@ -27,7 +27,7 @@ module ActiveRecord key else key = key.to_s - key.split(".".freeze).first if key.include?(".".freeze) + key.split(".").first if key.include?(".") end end.compact end @@ -115,11 +115,11 @@ module ActiveRecord def convert_dot_notation_to_hash(attributes) dot_notation = attributes.select do |k, v| - k.include?(".".freeze) && !v.is_a?(Hash) + k.include?(".") && !v.is_a?(Hash) end dot_notation.each_key do |key| - table_name, column_name = key.split(".".freeze) + table_name, column_name = key.split(".") value = attributes.delete(key) attributes[table_name] ||= {} diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index 56497e11cb..5170d38fa8 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -939,7 +939,7 @@ module ActiveRecord arel.having(having_clause.ast) unless having_clause.empty? if limit_value limit_attribute = ActiveModel::Attribute.with_cast_value( - "LIMIT".freeze, + "LIMIT", connection.sanitize_limit(limit_value), Type.default_value, ) @@ -947,7 +947,7 @@ module ActiveRecord end if offset_value offset_attribute = ActiveModel::Attribute.with_cast_value( - "OFFSET".freeze, + "OFFSET", offset_value.to_i, Type.default_value, ) diff --git a/activerecord/lib/active_record/tasks/postgresql_database_tasks.rb b/activerecord/lib/active_record/tasks/postgresql_database_tasks.rb index d3c85b161e..8acb11f75f 100644 --- a/activerecord/lib/active_record/tasks/postgresql_database_tasks.rb +++ b/activerecord/lib/active_record/tasks/postgresql_database_tasks.rb @@ -6,8 +6,8 @@ module ActiveRecord module Tasks # :nodoc: class PostgreSQLDatabaseTasks # :nodoc: DEFAULT_ENCODING = ENV["CHARSET"] || "utf8" - ON_ERROR_STOP_1 = "ON_ERROR_STOP=1".freeze - SQL_COMMENT_BEGIN = "--".freeze + ON_ERROR_STOP_1 = "ON_ERROR_STOP=1" + SQL_COMMENT_BEGIN = "--" delegate :connection, :establish_connection, :clear_active_connections!, to: ActiveRecord::Base diff --git a/activerecord/lib/active_record/test_fixtures.rb b/activerecord/lib/active_record/test_fixtures.rb new file mode 100644 index 0000000000..7b7b3f7112 --- /dev/null +++ b/activerecord/lib/active_record/test_fixtures.rb @@ -0,0 +1,201 @@ +# frozen_string_literal: true + +module ActiveRecord + module TestFixtures + extend ActiveSupport::Concern + + def before_setup # :nodoc: + setup_fixtures + super + end + + def after_teardown # :nodoc: + super + teardown_fixtures + end + + included do + class_attribute :fixture_path, instance_writer: false + class_attribute :fixture_table_names, default: [] + class_attribute :fixture_class_names, default: {} + class_attribute :use_transactional_tests, default: true + class_attribute :use_instantiated_fixtures, default: false # true, false, or :no_instances + class_attribute :pre_loaded_fixtures, default: false + class_attribute :config, default: ActiveRecord::Base + class_attribute :lock_threads, default: true + end + + module ClassMethods + # Sets the model class for a fixture when the class name cannot be inferred from the fixture name. + # + # Examples: + # + # set_fixture_class some_fixture: SomeModel, + # 'namespaced/fixture' => Another::Model + # + # The keys must be the fixture names, that coincide with the short paths to the fixture files. + def set_fixture_class(class_names = {}) + self.fixture_class_names = fixture_class_names.merge(class_names.stringify_keys) + end + + def fixtures(*fixture_set_names) + if fixture_set_names.first == :all + raise StandardError, "No fixture path found. Please set `#{self}.fixture_path`." if fixture_path.blank? + fixture_set_names = Dir["#{fixture_path}/{**,*}/*.{yml}"].uniq + fixture_set_names.map! { |f| f[(fixture_path.to_s.size + 1)..-5] } + else + fixture_set_names = fixture_set_names.flatten.map(&:to_s) + end + + self.fixture_table_names |= fixture_set_names + setup_fixture_accessors(fixture_set_names) + end + + def setup_fixture_accessors(fixture_set_names = nil) + fixture_set_names = Array(fixture_set_names || fixture_table_names) + methods = Module.new do + fixture_set_names.each do |fs_name| + fs_name = fs_name.to_s + accessor_name = fs_name.tr("/", "_").to_sym + + define_method(accessor_name) do |*fixture_names| + force_reload = fixture_names.pop if fixture_names.last == true || fixture_names.last == :reload + return_single_record = fixture_names.size == 1 + fixture_names = @loaded_fixtures[fs_name].fixtures.keys if fixture_names.empty? + + @fixture_cache[fs_name] ||= {} + + instances = fixture_names.map do |f_name| + f_name = f_name.to_s if f_name.is_a?(Symbol) + @fixture_cache[fs_name].delete(f_name) if force_reload + + if @loaded_fixtures[fs_name][f_name] + @fixture_cache[fs_name][f_name] ||= @loaded_fixtures[fs_name][f_name].find + else + raise StandardError, "No fixture named '#{f_name}' found for fixture set '#{fs_name}'" + end + end + + return_single_record ? instances.first : instances + end + private accessor_name + end + end + include methods + end + + def uses_transaction(*methods) + @uses_transaction = [] unless defined?(@uses_transaction) + @uses_transaction.concat methods.map(&:to_s) + end + + def uses_transaction?(method) + @uses_transaction = [] unless defined?(@uses_transaction) + @uses_transaction.include?(method.to_s) + end + end + + def run_in_transaction? + use_transactional_tests && + !self.class.uses_transaction?(method_name) + end + + def setup_fixtures(config = ActiveRecord::Base) + if pre_loaded_fixtures && !use_transactional_tests + raise RuntimeError, "pre_loaded_fixtures requires use_transactional_tests" + end + + @fixture_cache = {} + @fixture_connections = [] + @@already_loaded_fixtures ||= {} + @connection_subscriber = nil + + # Load fixtures once and begin transaction. + if run_in_transaction? + if @@already_loaded_fixtures[self.class] + @loaded_fixtures = @@already_loaded_fixtures[self.class] + else + @loaded_fixtures = load_fixtures(config) + @@already_loaded_fixtures[self.class] = @loaded_fixtures + end + + # Begin transactions for connections already established + @fixture_connections = enlist_fixture_connections + @fixture_connections.each do |connection| + connection.begin_transaction joinable: false + connection.pool.lock_thread = true if lock_threads + end + + # When connections are established in the future, begin a transaction too + @connection_subscriber = ActiveSupport::Notifications.subscribe("!connection.active_record") do |_, _, _, _, payload| + spec_name = payload[:spec_name] if payload.key?(:spec_name) + + if spec_name + begin + connection = ActiveRecord::Base.connection_handler.retrieve_connection(spec_name) + rescue ConnectionNotEstablished + connection = nil + end + + if connection && !@fixture_connections.include?(connection) + connection.begin_transaction joinable: false + connection.pool.lock_thread = true if lock_threads + @fixture_connections << connection + end + end + end + + # Load fixtures for every test. + else + ActiveRecord::FixtureSet.reset_cache + @@already_loaded_fixtures[self.class] = nil + @loaded_fixtures = load_fixtures(config) + end + + # Instantiate fixtures for every test if requested. + instantiate_fixtures if use_instantiated_fixtures + end + + def teardown_fixtures + # Rollback changes if a transaction is active. + if run_in_transaction? + ActiveSupport::Notifications.unsubscribe(@connection_subscriber) if @connection_subscriber + @fixture_connections.each do |connection| + connection.rollback_transaction if connection.transaction_open? + connection.pool.lock_thread = false + end + @fixture_connections.clear + else + ActiveRecord::FixtureSet.reset_cache + end + + ActiveRecord::Base.clear_active_connections! + end + + def enlist_fixture_connections + ActiveRecord::Base.connection_handler.connection_pool_list.map(&:connection) + end + + private + def load_fixtures(config) + fixtures = ActiveRecord::FixtureSet.create_fixtures(fixture_path, fixture_table_names, fixture_class_names, config) + Hash[fixtures.map { |f| [f.name, f] }] + end + + def instantiate_fixtures + if pre_loaded_fixtures + raise RuntimeError, "Load fixtures before instantiating them." if ActiveRecord::FixtureSet.all_loaded_fixtures.empty? + ActiveRecord::FixtureSet.instantiate_all_loaded_fixtures(self, load_instances?) + else + raise RuntimeError, "Load fixtures before instantiating them." if @loaded_fixtures.nil? + @loaded_fixtures.each_value do |fixture_set| + ActiveRecord::FixtureSet.instantiate_fixtures(self, fixture_set, load_instances?) + end + end + end + + def load_instances? + use_instantiated_fixtures != :no_instances + end + end +end diff --git a/activerecord/lib/arel/nodes/delete_statement.rb b/activerecord/lib/arel/nodes/delete_statement.rb index 5be42a084a..a419975335 100644 --- a/activerecord/lib/arel/nodes/delete_statement.rb +++ b/activerecord/lib/arel/nodes/delete_statement.rb @@ -3,7 +3,7 @@ module Arel # :nodoc: all module Nodes class DeleteStatement < Arel::Nodes::Node - attr_accessor :left, :right, :orders, :limit, :key + attr_accessor :left, :right, :orders, :limit, :offset, :key alias :relation :left alias :relation= :left= @@ -16,6 +16,7 @@ module Arel # :nodoc: all @right = wheres @orders = [] @limit = nil + @offset = nil @key = nil end @@ -26,7 +27,7 @@ module Arel # :nodoc: all end def hash - [self.class, @left, @right, @orders, @limit, @key].hash + [self.class, @left, @right, @orders, @limit, @offset, @key].hash end def eql?(other) @@ -35,6 +36,7 @@ module Arel # :nodoc: all self.right == other.right && self.orders == other.orders && self.limit == other.limit && + self.offset == other.offset && self.key == other.key end alias :== :eql? diff --git a/activerecord/lib/arel/nodes/update_statement.rb b/activerecord/lib/arel/nodes/update_statement.rb index 017a553c4c..cfaa19e392 100644 --- a/activerecord/lib/arel/nodes/update_statement.rb +++ b/activerecord/lib/arel/nodes/update_statement.rb @@ -3,7 +3,7 @@ module Arel # :nodoc: all module Nodes class UpdateStatement < Arel::Nodes::Node - attr_accessor :relation, :wheres, :values, :orders, :limit, :key + attr_accessor :relation, :wheres, :values, :orders, :limit, :offset, :key def initialize @relation = nil @@ -11,6 +11,7 @@ module Arel # :nodoc: all @values = [] @orders = [] @limit = nil + @offset = nil @key = nil end @@ -21,7 +22,7 @@ module Arel # :nodoc: all end def hash - [@relation, @wheres, @values, @orders, @limit, @key].hash + [@relation, @wheres, @values, @orders, @limit, @offset, @key].hash end def eql?(other) @@ -31,6 +32,7 @@ module Arel # :nodoc: all self.values == other.values && self.orders == other.orders && self.limit == other.limit && + self.offset == other.offset && self.key == other.key end alias :== :eql? diff --git a/activerecord/lib/arel/tree_manager.rb b/activerecord/lib/arel/tree_manager.rb index 149c69ce7a..0476399618 100644 --- a/activerecord/lib/arel/tree_manager.rb +++ b/activerecord/lib/arel/tree_manager.rb @@ -10,6 +10,11 @@ module Arel # :nodoc: all self end + def offset(offset) + @ast.offset = Nodes::Offset.new(Nodes.build_quoted(offset)) if offset + self + end + def order(*expr) @ast.orders = expr self diff --git a/activerecord/lib/arel/visitors/mysql.rb b/activerecord/lib/arel/visitors/mysql.rb index 0f7d5aa803..9d9294fecc 100644 --- a/activerecord/lib/arel/visitors/mysql.rb +++ b/activerecord/lib/arel/visitors/mysql.rb @@ -56,18 +56,6 @@ module Arel # :nodoc: all super end - def visit_Arel_Nodes_UpdateStatement(o, collector) - collector << "UPDATE " - collector = visit o.relation, collector - - unless o.values.empty? - collector << " SET " - collector = inject_join o.values, collector, ", " - end - - collect_where_for(o, collector) - end - def visit_Arel_Nodes_Concat(o, collector) collector << " CONCAT(" visit o.left, collector @@ -77,18 +65,42 @@ module Arel # :nodoc: all collector end - def collect_where_for(o, collector) - unless o.wheres.empty? - collector << " WHERE " - collector = inject_join o.wheres, collector, " AND " + # In the simple case, MySQL allows us to place JOINs directly into the UPDATE + # query. However, this does not allow for LIMIT, OFFSET and ORDER. To support + # these, we must use a subquery. + def prepare_update_statement(o) + if o.offset || has_join_sources?(o) && has_limit_or_offset_or_orders?(o) + super + else + o end + end - unless o.orders.empty? - collector << " ORDER BY " - collector = inject_join o.orders, collector, ", " + def prepare_delete_statement(o) + if o.offset || has_join_sources?(o) + super + else + o + end + end + + # MySQL is too stupid to create a temporary table for use subquery, so we have + # to give it some prompting in the form of a subsubquery. + def build_subselect(key, o) + subselect = super + + # Materialize subquery by adding distinct + # to work with MySQL 5.7.6 which sets optimizer_switch='derived_merge=on' + unless has_limit_or_offset_or_orders?(subselect) + core = subselect.cores.last + core.set_quantifier = Arel::Nodes::Distinct.new end - maybe_visit o.limit, collector + Nodes::SelectStatement.new.tap do |stmt| + core = stmt.cores.last + core.froms = Nodes::Grouping.new(subselect).as("__active_record_temp") + core.projections = [Arel.sql(quote_column_name(key.name))] + end end end end diff --git a/activerecord/lib/arel/visitors/to_sql.rb b/activerecord/lib/arel/visitors/to_sql.rb index 575bfd6e36..7c0f6c2e97 100644 --- a/activerecord/lib/arel/visitors/to_sql.rb +++ b/activerecord/lib/arel/visitors/to_sql.rb @@ -74,25 +74,17 @@ module Arel # :nodoc: all private def visit_Arel_Nodes_DeleteStatement(o, collector) + o = prepare_delete_statement(o) + collector << "DELETE FROM " collector = visit o.relation, collector collect_where_for(o, collector) end - # FIXME: we should probably have a 2-pass visitor for this - def build_subselect(key, o) - stmt = Nodes::SelectStatement.new - core = stmt.cores.first - core.froms = o.relation - core.wheres = o.wheres - core.projections = [key] - stmt.limit = o.limit - stmt.orders = o.orders - stmt - end - def visit_Arel_Nodes_UpdateStatement(o, collector) + o = prepare_update_statement(o) + collector << "UPDATE " collector = visit o.relation, collector unless o.values.empty? @@ -799,19 +791,57 @@ module Arel # :nodoc: all } end - def collect_where_for(o, collector) - if o.orders.empty? && o.limit.nil? - wheres = o.wheres + def has_join_sources?(o) + o.relation.is_a?(Nodes::JoinSource) && !o.relation.right.empty? + end + + def has_limit_or_offset_or_orders?(o) + o.limit || o.offset || !o.orders.empty? + end + + # The default strategy for an UPDATE with joins is to use a subquery. This doesn't work + # on MySQL (even when aliasing the tables), but MySQL allows using JOIN directly in + # an UPDATE statement, so in the MySQL visitor we redefine this to do that. + def prepare_update_statement(o) + if o.key && (has_limit_or_offset_or_orders?(o) || has_join_sources?(o)) + stmt = o.clone + stmt.limit = nil + stmt.offset = nil + stmt.orders = [] + stmt.wheres = [Nodes::In.new(o.key, [build_subselect(o.key, o)])] + stmt.relation = o.relation.left if has_join_sources?(o) + stmt else - wheres = [Nodes::In.new(o.key, [build_subselect(o.key, o)])] + o end + end + alias :prepare_delete_statement :prepare_update_statement - unless wheres.empty? + # FIXME: we should probably have a 2-pass visitor for this + def build_subselect(key, o) + stmt = Nodes::SelectStatement.new + core = stmt.cores.first + core.froms = o.relation + core.wheres = o.wheres + core.projections = [key] + stmt.limit = o.limit + stmt.offset = o.offset + stmt.orders = o.orders + stmt + end + + def collect_where_for(o, collector) + unless o.wheres.empty? collector << " WHERE " - collector = inject_join wheres, collector, " AND " + collector = inject_join o.wheres, collector, " AND " end - collector + unless o.orders.empty? + collector << " ORDER BY " + collector = inject_join o.orders, collector, ", " + end + + maybe_visit o.limit, collector end def infix_value(o, collector, value) |