diff options
Diffstat (limited to 'activerecord/lib/active_record/associations')
10 files changed, 72 insertions, 79 deletions
diff --git a/activerecord/lib/active_record/associations/association_scope.rb b/activerecord/lib/active_record/associations/association_scope.rb index d06b7b3508..2416167834 100644 --- a/activerecord/lib/active_record/associations/association_scope.rb +++ b/activerecord/lib/active_record/associations/association_scope.rb @@ -2,42 +2,30 @@ module ActiveRecord module Associations class AssociationScope #:nodoc: def self.scope(association, connection) - INSTANCE.scope association, connection - end - - class BindSubstitution - def initialize(block) - @block = block - end - - def bind_value(scope, column, value, connection) - substitute = connection.substitute_at(column) - scope.bind_values += [[column, @block.call(value)]] - substitute - end + INSTANCE.scope(association, connection) end def self.create(&block) - block = block ? block : lambda { |val| val } - new BindSubstitution.new(block) + block ||= lambda { |val| val } + new(block) end - def initialize(bind_substitution) - @bind_substitution = bind_substitution + def initialize(value_transformation) + @value_transformation = value_transformation end INSTANCE = create def scope(association, connection) - klass = association.klass - reflection = association.reflection - scope = klass.unscoped - owner = association.owner + klass = association.klass + reflection = association.reflection + scope = klass.unscoped + owner = association.owner alias_tracker = AliasTracker.create connection, association.klass.table_name, klass.type_caster chain_head, chain_tail = get_chain(reflection, association, alias_tracker) scope.extending! Array(reflection.options[:extend]) - add_constraints(scope, owner, klass, reflection, connection, chain_head, chain_tail) + add_constraints(scope, owner, klass, reflection, chain_head, chain_tail) end def join_type @@ -61,43 +49,36 @@ module ActiveRecord binds end + protected + + attr_reader :value_transformation + private def join(table, constraint) table.create_join(table, table.create_on(constraint), join_type) end - def column_for(table_name, column_name, connection) - columns = connection.schema_cache.columns_hash(table_name) - columns[column_name] - end - - def bind_value(scope, column, value, connection) - @bind_substitution.bind_value scope, column, value, connection - end - - def bind(scope, table_name, column_name, value, connection) - column = column_for table_name, column_name, connection - bind_value scope, column, value, connection - end - - def last_chain_scope(scope, table, reflection, owner, connection, association_klass) + def last_chain_scope(scope, table, reflection, owner, association_klass) join_keys = reflection.join_keys(association_klass) key = join_keys.key foreign_key = join_keys.foreign_key - bind_val = bind scope, table.table_name, key.to_s, owner[foreign_key], connection - scope = scope.where(table[key].eq(bind_val)) + value = transform_value(owner[foreign_key]) + scope = scope.where(table.name => { key => value }) if reflection.type - value = owner.class.base_class.name - bind_val = bind scope, table.table_name, reflection.type, value, connection - scope = scope.where(table[reflection.type].eq(bind_val)) - else - scope + polymorphic_type = transform_value(owner.class.base_class.name) + scope = scope.where(table.name => { reflection.type => polymorphic_type }) end + + scope + end + + def transform_value(value) + value_transformation.call(value) end - def next_chain_scope(scope, table, reflection, connection, association_klass, foreign_table, next_reflection) + def next_chain_scope(scope, table, reflection, association_klass, foreign_table, next_reflection) join_keys = reflection.join_keys(association_klass) key = join_keys.key foreign_key = join_keys.foreign_key @@ -105,9 +86,8 @@ module ActiveRecord constraint = table[key].eq(foreign_table[foreign_key]) if reflection.type - value = next_reflection.klass.base_class.name - bind_val = bind scope, table.table_name, reflection.type, value, connection - scope = scope.where(table[reflection.type].eq(bind_val)) + value = transform_value(next_reflection.klass.base_class.name) + scope = scope.where(table.name => { reflection.type => value }) end scope = scope.joins(join(foreign_table, constraint)) @@ -138,10 +118,10 @@ module ActiveRecord [runtime_reflection, previous_reflection] end - def add_constraints(scope, owner, association_klass, refl, connection, chain_head, chain_tail) + def add_constraints(scope, owner, association_klass, refl, chain_head, chain_tail) owner_reflection = chain_tail table = owner_reflection.alias_name - scope = last_chain_scope(scope, table, owner_reflection, owner, connection, association_klass) + scope = last_chain_scope(scope, table, owner_reflection, owner, association_klass) reflection = chain_head loop do @@ -151,7 +131,7 @@ module ActiveRecord unless reflection == chain_tail next_reflection = reflection.next foreign_table = next_reflection.alias_name - scope = next_chain_scope(scope, table, reflection, connection, association_klass, foreign_table, next_reflection) + scope = next_chain_scope(scope, table, reflection, association_klass, foreign_table, next_reflection) end # Exclude the scope of the association itself, because that @@ -160,15 +140,14 @@ module ActiveRecord item = eval_scope(reflection.klass, scope_chain_item, owner) if scope_chain_item == refl.scope - scope.merge! item.except(:where, :includes, :bind) + scope.merge! item.except(:where, :includes) end reflection.all_includes do scope.includes! item.includes_values end - scope.where_values += item.where_values - scope.bind_values += item.bind_values + scope.where_clause += item.where_clause scope.order_values |= item.order_values end diff --git a/activerecord/lib/active_record/associations/belongs_to_association.rb b/activerecord/lib/active_record/associations/belongs_to_association.rb index c63b42e2a0..265a65c4c1 100644 --- a/activerecord/lib/active_record/associations/belongs_to_association.rb +++ b/activerecord/lib/active_record/associations/belongs_to_association.rb @@ -68,6 +68,9 @@ module ActiveRecord def increment_counter(counter_cache_name) if foreign_key_present? klass.increment_counter(counter_cache_name, target_id) + if target && !stale_target? + target.increment(counter_cache_name) + end end end diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb index f2c96e9a2a..4b7591e15c 100644 --- a/activerecord/lib/active_record/associations/collection_association.rb +++ b/activerecord/lib/active_record/associations/collection_association.rb @@ -151,6 +151,7 @@ module ActiveRecord # be chained. Since << flattens its argument list and inserts each record, # +push+ and +concat+ behave identically. def concat(*records) + records = records.flatten if owner.new_record? load_target concat_records(records) @@ -549,7 +550,7 @@ module ActiveRecord def concat_records(records, should_raise = false) result = true - records.flatten.each do |record| + records.each do |record| raise_on_type_mismatch!(record) add_to_target(record) do |rec| result &&= insert_record(rec, true, should_raise) unless owner.new_record? diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb index 2a782c06d0..b574185561 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -101,7 +101,7 @@ module ActiveRecord end def update_counter_in_memory(difference, reflection = reflection()) - if has_cached_counter?(reflection) + if counter_must_be_updated_by_has_many?(reflection) counter = cached_counter_attribute_name(reflection) owner[counter] += difference owner.send(:clear_attribute_changes, counter) # eww @@ -118,18 +118,28 @@ module ActiveRecord # it will be decremented twice. # # Hence this method. - def inverse_updates_counter_cache?(reflection = reflection()) + def inverse_which_updates_counter_cache(reflection = reflection()) counter_name = cached_counter_attribute_name(reflection) - inverse_updates_counter_named?(counter_name, reflection) + inverse_which_updates_counter_named(counter_name, reflection) end + alias inverse_updates_counter_cache? inverse_which_updates_counter_cache - def inverse_updates_counter_named?(counter_name, reflection = reflection()) - reflection.klass._reflections.values.any? { |inverse_reflection| + def inverse_which_updates_counter_named(counter_name, reflection) + reflection.klass._reflections.values.find { |inverse_reflection| inverse_reflection.belongs_to? && inverse_reflection.counter_cache_column == counter_name } end + def inverse_updates_counter_in_memory?(reflection) + inverse = inverse_which_updates_counter_cache(reflection) + inverse && inverse == reflection.inverse_of + end + + def counter_must_be_updated_by_has_many?(reflection) + !inverse_updates_counter_in_memory?(reflection) && has_cached_counter?(reflection) + end + def delete_count(method, scope) if method == :delete_all scope.delete_all 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 f1e784d771..4fcbc98c62 100644 --- a/activerecord/lib/active_record/associations/has_many_through_association.rb +++ b/activerecord/lib/active_record/associations/has_many_through_association.rb @@ -143,7 +143,7 @@ module ActiveRecord stmt.from scope.klass.arel_table stmt.wheres = arel.constraints - count = scope.klass.connection.delete(stmt, 'SQL', scope.bind_values) + count = scope.klass.connection.delete(stmt, 'SQL', scope.bound_attributes) end when :nullify count = scope.update_all(source_reflection.foreign_key => nil) diff --git a/activerecord/lib/active_record/associations/join_dependency/join_association.rb b/activerecord/lib/active_record/associations/join_dependency/join_association.rb index c1ef86a95b..a6ad09a38a 100644 --- a/activerecord/lib/active_record/associations/join_dependency/join_association.rb +++ b/activerecord/lib/active_record/associations/join_dependency/join_association.rb @@ -25,7 +25,7 @@ module ActiveRecord def join_constraints(foreign_table, foreign_klass, node, join_type, tables, scope_chain, chain) joins = [] - bind_values = [] + binds = [] tables = tables.reverse scope_chain_index = 0 @@ -66,7 +66,7 @@ module ActiveRecord end if rel && !rel.arel.constraints.empty? - bind_values.concat rel.bind_values + binds += rel.bound_attributes constraint = constraint.and rel.arel.constraints end @@ -75,7 +75,7 @@ module ActiveRecord column = klass.columns_hash[reflection.type.to_s] substitute = klass.connection.substitute_at(column) - bind_values.push [column, value] + binds << Relation::QueryAttribute.new(column.name, value, klass.type_for_attribute(column.name)) constraint = constraint.and table[reflection.type].eq substitute end @@ -85,7 +85,7 @@ module ActiveRecord foreign_table, foreign_klass = table, klass end - JoinInformation.new joins, bind_values + JoinInformation.new joins, binds end # Builds equality condition. diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb index 4358f3b581..97f4bd3811 100644 --- a/activerecord/lib/active_record/associations/preloader.rb +++ b/activerecord/lib/active_record/associations/preloader.rb @@ -89,7 +89,7 @@ module ActiveRecord # { author: :avatar } # [ :books, { author: :avatar } ] - NULL_RELATION = Struct.new(:values, :bind_values).new({}, []) + NULL_RELATION = Struct.new(:values, :where_clause, :joins_values).new({}, Relation::WhereClause.empty, []) def preload(records, associations, preload_scope = nil) records = Array.wrap(records).compact.uniq diff --git a/activerecord/lib/active_record/associations/preloader/association.rb b/activerecord/lib/active_record/associations/preloader/association.rb index afcaa5d55a..1dc8bff193 100644 --- a/activerecord/lib/active_record/associations/preloader/association.rb +++ b/activerecord/lib/active_record/associations/preloader/association.rb @@ -104,11 +104,11 @@ module ActiveRecord end def association_key_type - @klass.column_for_attribute(association_key_name).type + @klass.type_for_attribute(association_key_name.to_s).type end def owner_key_type - @model.column_for_attribute(owner_key_name).type + @model.type_for_attribute(owner_key_name.to_s).type end def load_slices(slices) @@ -131,18 +131,19 @@ module ActiveRecord def build_scope scope = klass.unscoped - values = reflection_scope.values - reflection_binds = reflection_scope.bind_values + values = reflection_scope.values preload_values = preload_scope.values - preload_binds = preload_scope.bind_values - scope.where_values = Array(values[:where]) + Array(preload_values[:where]) + scope.where_clause = reflection_scope.where_clause + preload_scope.where_clause scope.references_values = Array(values[:references]) + Array(preload_values[:references]) - scope.bind_values = (reflection_binds + preload_binds) - scope._select! preload_values[:select] || values[:select] || table[Arel.star] + scope._select! preload_values[:select] || values[:select] || table[Arel.star] scope.includes! preload_values[:includes] || values[:includes] - scope.joins! preload_values[:joins] || values[:joins] + if preload_scope.joins_values.any? + scope.joins!(preload_scope.joins_values) + else + scope.joins!(reflection_scope.joins_values) + end scope.order! preload_values[:order] || values[:order] if preload_values[:readonly] || values[:readonly] diff --git a/activerecord/lib/active_record/associations/preloader/through_association.rb b/activerecord/lib/active_record/associations/preloader/through_association.rb index 12bf3ef138..56aa23b173 100644 --- a/activerecord/lib/active_record/associations/preloader/through_association.rb +++ b/activerecord/lib/active_record/associations/preloader/through_association.rb @@ -78,10 +78,9 @@ module ActiveRecord if options[:source_type] scope.where! reflection.foreign_type => options[:source_type] else - unless reflection_scope.where_values.empty? + unless reflection_scope.where_clause.empty? scope.includes_values = Array(reflection_scope.values[:includes] || options[:source]) - scope.where_values = reflection_scope.values[:where] - scope.bind_values = reflection_scope.bind_values + scope.where_clause = reflection_scope.where_clause end scope.references! reflection_scope.values[:references] diff --git a/activerecord/lib/active_record/associations/through_association.rb b/activerecord/lib/active_record/associations/through_association.rb index 09828dbd9b..3ce9cffdbc 100644 --- a/activerecord/lib/active_record/associations/through_association.rb +++ b/activerecord/lib/active_record/associations/through_association.rb @@ -18,7 +18,7 @@ module ActiveRecord reflection_scope = reflection.scope if reflection_scope && reflection_scope.arity.zero? - relation.merge!(reflection_scope) + relation = relation.merge(reflection_scope) end scope.merge!( |