diff options
Diffstat (limited to 'activerecord/lib/active_record')
15 files changed, 151 insertions, 63 deletions
diff --git a/activerecord/lib/active_record/association_relation.rb b/activerecord/lib/active_record/association_relation.rb index 20516bba0c..45f1b07f69 100644 --- a/activerecord/lib/active_record/association_relation.rb +++ b/activerecord/lib/active_record/association_relation.rb @@ -9,6 +9,18 @@ module ActiveRecord @association end + def size + @association.size + end + + def empty? + @association.empty? + end + + def ==(other) + other == to_a + end + private def exec_queries diff --git a/activerecord/lib/active_record/associations/builder/belongs_to.rb b/activerecord/lib/active_record/associations/builder/belongs_to.rb index 5ccaa55a32..11be92ae01 100644 --- a/activerecord/lib/active_record/associations/builder/belongs_to.rb +++ b/activerecord/lib/active_record/associations/builder/belongs_to.rb @@ -37,13 +37,14 @@ module ActiveRecord::Associations::Builder end end - def belongs_to_counter_cache_before_destroy(reflection) + def belongs_to_counter_cache_after_destroy(reflection) foreign_key = reflection.foreign_key.to_sym unless destroyed_by_association && destroyed_by_association.foreign_key.to_sym == foreign_key record = send reflection.name - if record && !self.destroyed? + if record && self.actually_destroyed? cache_column = reflection.counter_cache_column record.class.decrement_counter(cache_column, record.id) + self.clear_destroy_state end end end @@ -77,8 +78,8 @@ module ActiveRecord::Associations::Builder record.belongs_to_counter_cache_after_create(reflection) } - model.before_destroy lambda { |record| - record.belongs_to_counter_cache_before_destroy(reflection) + model.after_destroy lambda { |record| + record.belongs_to_counter_cache_after_destroy(reflection) } model.after_update lambda { |record| diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb index 3e4b7902c0..aac85a36c8 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -58,7 +58,7 @@ module ActiveRecord # the loaded flag is set to true as well. def count_records count = if has_cached_counter? - owner.send(:read_attribute, cached_counter_attribute_name) + owner.read_attribute cached_counter_attribute_name else scope.count 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 64bc98c642..73baefb8e1 100644 --- a/activerecord/lib/active_record/associations/has_many_through_association.rb +++ b/activerecord/lib/active_record/associations/has_many_through_association.rb @@ -18,7 +18,7 @@ module ActiveRecord # SELECT query if you use #length. def size if has_cached_counter? - owner.send(:read_attribute, cached_counter_attribute_name) + owner.read_attribute cached_counter_attribute_name(reflection) elsif loaded? target.size else @@ -83,12 +83,16 @@ module ActiveRecord @through_records[record.object_id] ||= begin ensure_mutable - through_record = through_association.build + through_record = through_association.build through_scope_attributes through_record.send("#{source_reflection.name}=", record) through_record end end + def through_scope_attributes + scope.where_values_hash(through_association.reflection.name.to_s) + end + def save_through_record(record) build_through_record(record).save! ensure diff --git a/activerecord/lib/active_record/attribute_methods/serialization.rb b/activerecord/lib/active_record/attribute_methods/serialization.rb index 67abbbc2a0..c3466153d6 100644 --- a/activerecord/lib/active_record/attribute_methods/serialization.rb +++ b/activerecord/lib/active_record/attribute_methods/serialization.rb @@ -30,7 +30,8 @@ module ActiveRecord # ==== Parameters # # * +attr_name+ - The field name that should be serialized. - # * +class_name+ - Optional, class name that the object type should be equal to. + # * +class_name_or_coder+ - Optional, a coder object, which responds to `.load` / `.dump` + # or a class name that the object type should be equal to. # # ==== Example # @@ -38,13 +39,23 @@ module ActiveRecord # class User < ActiveRecord::Base # serialize :preferences # end - def serialize(attr_name, class_name = Object) + # + # # Serialize preferences using JSON as coder. + # class User < ActiveRecord::Base + # serialize :preferences, JSON + # end + # + # # Serialize preferences as Hash using YAML coder. + # class User < ActiveRecord::Base + # serialize :preferences, Hash + # end + def serialize(attr_name, class_name_or_coder = Object) include Behavior - coder = if [:load, :dump].all? { |x| class_name.respond_to?(x) } - class_name + coder = if [:load, :dump].all? { |x| class_name_or_coder.respond_to?(x) } + class_name_or_coder else - Coders::YAMLColumn.new(class_name) + Coders::YAMLColumn.new(class_name_or_coder) end # merge new serialized attribute and create new hash to ensure that each class in inheritance hierarchy diff --git a/activerecord/lib/active_record/autosave_association.rb b/activerecord/lib/active_record/autosave_association.rb index e9622ca0c1..f149d8f127 100644 --- a/activerecord/lib/active_record/autosave_association.rb +++ b/activerecord/lib/active_record/autosave_association.rb @@ -35,7 +35,7 @@ module ActiveRecord # # === One-to-one Example # - # class Post + # class Post < ActiveRecord::Base # has_one :author, autosave: true # end # @@ -76,7 +76,7 @@ module ActiveRecord # # When <tt>:autosave</tt> is not declared new children are saved when their parent is saved: # - # class Post + # class Post < ActiveRecord::Base # has_many :comments # :autosave option is not declared # end # @@ -95,20 +95,23 @@ module ActiveRecord # When <tt>:autosave</tt> is true all children are saved, no matter whether they # are new records or not: # - # class Post + # class Post < ActiveRecord::Base # has_many :comments, autosave: true # end # # post = Post.create(title: 'ruby rocks') # post.comments.create(body: 'hello world') # post.comments[0].body = 'hi everyone' - # post.save # => saves both post and comment, with 'hi everyone' as body + # post.comments.build(body: "good morning.") + # post.title += "!" + # post.save # => saves both post and comments. # # Destroying one of the associated models as part of the parent's save action # is as simple as marking it for destruction: # - # post.comments.last.mark_for_destruction - # post.comments.last.marked_for_destruction? # => true + # post.comments # => [#<Comment id: 1, ...>, #<Comment id: 2, ...]> + # post.comments[1].mark_for_destruction + # post.comments[1].marked_for_destruction? # => true # post.comments.length # => 2 # # Note that the model is _not_ yet removed from the database: 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 270071a166..b7b9a4363e 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -385,7 +385,7 @@ module ActiveRecord end def binds_from_relation(relation, binds) - if relation.is_a?(Relation) && binds.blank? + if relation.is_a?(Relation) && binds.empty? relation, binds = relation.arel, relation.bind_values end [relation, binds] 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 51ee2829b2..a5fb048b1e 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb @@ -142,10 +142,7 @@ module ActiveRecord fields.each_with_index do |fname, i| ftype = result.ftype i fmod = result.fmod i - types[fname] = type_map.fetch(ftype, fmod) { |oid, mod| - warn "unknown OID: #{fname}(#{oid}) (#{sql})" - OID::Identity.new - } + types[fname] = get_oid_type(ftype, fmod, fname) end ret = ActiveRecord::Result.new(fields, result.values, types) 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 50a73aa666..1229b4851a 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -182,9 +182,7 @@ module ActiveRecord def columns(table_name) # Limit, precision, and scale are all handled by the superclass. column_definitions(table_name).map do |column_name, type, default, notnull, oid, fmod| - oid = type_map.fetch(oid.to_i, fmod.to_i) { - OID::Identity.new - } + oid = get_oid_type(oid.to_i, fmod.to_i, column_name) PostgreSQLColumn.new(column_name, default, oid, type, notnull == 'f') end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 87cbfa8d8b..56dd2da249 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -555,6 +555,17 @@ module ActiveRecord @type_map end + def get_oid_type(oid, fmod, column_name) + if !type_map.key?(oid) + initialize_type_map(type_map, [oid]) + end + + type_map.fetch(oid, fmod) { + warn "unknown OID #{oid}: failed to recognize type of '#{column_name}'. It will be treated as String." + type_map[oid] = OID::Identity.new + } + end + def reload_type_map type_map.clear initialize_type_map(type_map) @@ -579,19 +590,25 @@ module ActiveRecord type_map end - def initialize_type_map(type_map) + def initialize_type_map(type_map, oids = nil) if supports_ranges? - result = execute(<<-SQL, 'SCHEMA') + query = <<-SQL SELECT t.oid, t.typname, t.typelem, t.typdelim, t.typinput, r.rngsubtype, t.typtype, t.typbasetype FROM pg_type as t LEFT JOIN pg_range as r ON oid = rngtypid SQL else - result = execute(<<-SQL, 'SCHEMA') + query = <<-SQL SELECT t.oid, t.typname, t.typelem, t.typdelim, t.typinput, t.typtype, t.typbasetype FROM pg_type as t SQL end + + if oids + query += "WHERE t.oid::integer IN (%s)" % oids.join(", ") + end + + result = execute(query, 'SCHEMA') ranges, nodes = result.partition { |row| row['typtype'] == 'r' } enums, nodes = nodes.partition { |row| row['typtype'] == 'e' } domains, nodes = nodes.partition { |row| row['typtype'] == 'd' } diff --git a/activerecord/lib/active_record/counter_cache.rb b/activerecord/lib/active_record/counter_cache.rb index dcbdf75627..a5897edf03 100644 --- a/activerecord/lib/active_record/counter_cache.rb +++ b/activerecord/lib/active_record/counter_cache.rb @@ -118,5 +118,26 @@ module ActiveRecord update_counters(id, counter_name => -1) end end + + protected + + def actually_destroyed? + @_actually_destroyed + end + + def clear_destroy_state + @_actually_destroyed = nil + end + + private + + def destroy_row + affected_rows = super + + @_actually_destroyed = affected_rows > 0 + + affected_rows + end + end end diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb index 6f134bbef8..47d32fae05 100644 --- a/activerecord/lib/active_record/fixtures.rb +++ b/activerecord/lib/active_record/fixtures.rb @@ -2,6 +2,7 @@ require 'erb' require 'yaml' require 'zlib' require 'active_support/dependencies' +require 'active_support/core_ext/securerandom' require 'active_record/fixture_set/file' require 'active_record/errors' @@ -550,9 +551,13 @@ module ActiveRecord end # Returns a consistent, platform-independent identifier for +label+. - # Identifiers are positive integers less than 2^30. - def self.identify(label) - Zlib.crc32(label.to_s) % MAX_ID + # 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 + SecureRandom.uuid_v5(SecureRandom::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. @@ -633,7 +638,7 @@ module ActiveRecord # generate a primary key if necessary if has_primary_key_column? && !row.include?(primary_key_name) - row[primary_key_name] = ActiveRecord::FixtureSet.identify(label) + row[primary_key_name] = ActiveRecord::FixtureSet.identify(label, primary_key_type) end # If STI is used, find the correct subclass for association reflection @@ -656,7 +661,8 @@ module ActiveRecord row[association.foreign_type] = $1 end - row[fk_name] = ActiveRecord::FixtureSet.identify(value) + fk_type = association.active_record.columns_hash[association.foreign_key].type + row[fk_name] = ActiveRecord::FixtureSet.identify(value, fk_type) end when :has_many if association.options[:through] @@ -683,6 +689,10 @@ module ActiveRecord def name @association.name end + + def primary_key_type + @association.klass.column_types[@association.klass.primary_key].type + end end class HasManyThroughProxy < ReflectionProxy # :nodoc: @@ -700,17 +710,22 @@ module ActiveRecord @primary_key_name ||= model_class && model_class.primary_key end + def primary_key_type + @primary_key_type ||= model_class && model_class.column_types[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 - lhs_key = association.lhs_key - rhs_key = association.rhs_key + 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) } + rhs_key => ActiveRecord::FixtureSet.identify(target, column_type) } } end end diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 5465a7bfd7..1724ea95b0 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -22,11 +22,11 @@ module ActiveRecord end def self.add_reflection(ar, name, reflection) - ar.reflections = ar.reflections.merge(name => reflection) + ar.reflections = ar.reflections.merge(name.to_s => reflection) end def self.add_aggregate_reflection(ar, name, reflection) - ar.aggregate_reflections = ar.aggregate_reflections.merge(name => reflection) + ar.aggregate_reflections = ar.aggregate_reflections.merge(name.to_s => reflection) end # \Reflection enables to interrogate Active Record classes and objects @@ -48,7 +48,7 @@ module ActiveRecord # Account.reflect_on_aggregation(:balance) # => the balance AggregateReflection # def reflect_on_aggregation(aggregation) - aggregate_reflections[aggregation] + aggregate_reflections[aggregation.to_s] end # Returns an array of AssociationReflection objects for all the @@ -72,7 +72,7 @@ module ActiveRecord # Invoice.reflect_on_association(:line_items).macro # returns :has_many # def reflect_on_association(association) - reflections[association] + reflections[association.to_s] end # Returns an array of AssociationReflection objects for all associations which have <tt>:autosave</tt> enabled. @@ -617,11 +617,11 @@ module ActiveRecord # # => [:tag, :tags] # def source_reflection_names - (options[:source] ? [options[:source]] : [name.to_s.singularize, name]).collect { |n| n.to_sym }.uniq + options[:source] ? [options[:source]] : [name.to_s.singularize, name].uniq end def source_reflection_name # :nodoc: - return @source_reflection_name.to_sym if @source_reflection_name + return @source_reflection_name if @source_reflection_name names = [name.to_s.singularize, name].collect { |n| n.to_sym }.uniq names = names.find_all { |n| diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 5b635ca7c1..24b33ab0a8 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -240,7 +240,7 @@ module ActiveRecord # Returns size of the records. def size - loaded? ? @records.length : count + loaded? ? @records.length : count(:all) end # Returns true if there are no records. @@ -250,8 +250,7 @@ module ActiveRecord if limit_value == 0 true else - # FIXME: This count is not compatible with #select('authors.*') or other select narrows - c = count + c = count(:all) c.respond_to?(:zero?) ? c.zero? : c.empty? end end @@ -532,9 +531,9 @@ module ActiveRecord # # User.where(name: 'Oscar').where_values_hash # # => {name: "Oscar"} - def where_values_hash + def where_values_hash(relation_table_name = table_name) equalities = where_values.grep(Arel::Nodes::Equality).find_all { |node| - node.left.relation.name == table_name + node.left.relation.name == relation_table_name } binds = Hash[bind_values.find_all(&:first).map { |column, v| [column.name, v] }] @@ -579,6 +578,8 @@ module ActiveRecord # Compares two relations for equality. def ==(other) case other + when Associations::CollectionProxy, AssociationRelation + self == other.to_a when Relation other.to_sql == to_sql when Array diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index 7192aecee1..6f57441a66 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -129,9 +129,9 @@ module ActiveRecord # def first(limit = nil) if limit - find_nth_with_limit(offset_value, limit) + find_nth_with_limit(offset_index, limit) else - find_nth(:first, offset_value) + find_nth(0, offset_index) end end @@ -181,7 +181,7 @@ module ActiveRecord # Person.offset(3).second # returns the second object from OFFSET 3 (which is OFFSET 4) # Person.where(["user_name = :u", { u: user_name }]).second def second - find_nth(:second, offset_value ? offset_value + 1 : 1) + find_nth(1, offset_index) end # Same as +second+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record @@ -197,7 +197,7 @@ module ActiveRecord # Person.offset(3).third # returns the third object from OFFSET 3 (which is OFFSET 5) # Person.where(["user_name = :u", { u: user_name }]).third def third - find_nth(:third, offset_value ? offset_value + 2 : 2) + find_nth(2, offset_index) end # Same as +third+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record @@ -213,7 +213,7 @@ module ActiveRecord # Person.offset(3).fourth # returns the fourth object from OFFSET 3 (which is OFFSET 6) # Person.where(["user_name = :u", { u: user_name }]).fourth def fourth - find_nth(:fourth, offset_value ? offset_value + 3 : 3) + find_nth(3, offset_index) end # Same as +fourth+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record @@ -229,7 +229,7 @@ module ActiveRecord # Person.offset(3).fifth # returns the fifth object from OFFSET 3 (which is OFFSET 7) # Person.where(["user_name = :u", { u: user_name }]).fifth def fifth - find_nth(:fifth, offset_value ? offset_value + 4 : 4) + find_nth(4, offset_index) end # Same as +fifth+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record @@ -245,7 +245,7 @@ module ActiveRecord # Person.offset(3).forty_two # returns the fifth object from OFFSET 3 (which is OFFSET 44) # Person.where(["user_name = :u", { u: user_name }]).forty_two def forty_two - find_nth(:forty_two, offset_value ? offset_value + 41 : 41) + find_nth(41, offset_index) end # Same as +forty_two+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record @@ -331,6 +331,10 @@ module ActiveRecord private + def offset_index + offset_value || 0 + end + def find_with_associations join_dependency = construct_join_dependency @@ -466,20 +470,24 @@ module ActiveRecord end end - def find_nth(ordinal, offset) + def find_nth(index, offset) if loaded? - @records.send(ordinal) + @records[index] else + offset += index @offsets[offset] ||= find_nth_with_limit(offset, 1).first end end def find_nth_with_limit(offset, limit) - if order_values.empty? && primary_key - order(arel_table[primary_key].asc).limit(limit).offset(offset).to_a - else - limit(limit).offset(offset).to_a - end + relation = if order_values.empty? && primary_key + order(arel_table[primary_key].asc) + else + self + end + + relation = relation.offset(offset) unless offset.zero? + relation.limit(limit).to_a end def find_last |