diff options
Diffstat (limited to 'activerecord/lib/active_record/relation/predicate_builder.rb')
| -rw-r--r-- | activerecord/lib/active_record/relation/predicate_builder.rb | 138 |
1 files changed, 56 insertions, 82 deletions
diff --git a/activerecord/lib/active_record/relation/predicate_builder.rb b/activerecord/lib/active_record/relation/predicate_builder.rb index 18ae10a652..f734cd0ad8 100644 --- a/activerecord/lib/active_record/relation/predicate_builder.rb +++ b/activerecord/lib/active_record/relation/predicate_builder.rb @@ -1,27 +1,19 @@ +# frozen_string_literal: true + module ActiveRecord class PredicateBuilder # :nodoc: - require "active_record/relation/predicate_builder/array_handler" - require "active_record/relation/predicate_builder/association_query_handler" - require "active_record/relation/predicate_builder/base_handler" - require "active_record/relation/predicate_builder/basic_object_handler" - require "active_record/relation/predicate_builder/polymorphic_array_handler" - require "active_record/relation/predicate_builder/range_handler" - require "active_record/relation/predicate_builder/relation_handler" - delegate :resolve_column_aliases, to: :table def initialize(table) @table = table @handlers = [] - register_handler(BasicObject, BasicObjectHandler.new) + register_handler(BasicObject, BasicObjectHandler.new(self)) register_handler(Base, BaseHandler.new(self)) - register_handler(Range, RangeHandler.new) - register_handler(RangeHandler::RangeWithBinds, RangeHandler.new) + register_handler(Range, RangeHandler.new(self)) register_handler(Relation, RelationHandler.new) register_handler(Array, ArrayHandler.new(self)) - register_handler(AssociationQueryValue, AssociationQueryHandler.new(self)) - register_handler(PolymorphicArrayValue, PolymorphicArrayHandler.new(self)) + register_handler(Set, ArrayHandler.new(self)) end def build_from_hash(attributes) @@ -29,11 +21,6 @@ module ActiveRecord expand_from_hash(attributes) end - def create_binds(attributes) - attributes = convert_dot_notation_to_hash(attributes) - create_binds_for_hash(attributes) - end - def self.references(attributes) attributes.map do |key, value| if value.is_a?(Hash) @@ -61,74 +48,66 @@ module ActiveRecord end def build(attribute, value) - handler_for(value).call(attribute, value) + if table.type(attribute.name).force_equality?(value) + bind = build_bind_attribute(attribute.name, value) + attribute.eq(bind) + else + handler_for(value).call(attribute, value) + end end - # TODO Change this to private once we've dropped Ruby 2.2 support. - # Workaround for Ruby 2.2 "private attribute?" warning. - protected - - attr_reader :table + def build_bind_attribute(column_name, value) + attr = Relation::QueryAttribute.new(column_name.to_s, value, table.type(column_name)) + Arel::Nodes::BindParam.new(attr) + end + protected def expand_from_hash(attributes) return ["1=0"] if attributes.empty? attributes.flat_map do |key, value| if value.is_a?(Hash) && !table.has_column?(key) associated_predicate_builder(key).expand_from_hash(value) - else - build(table.arel_attribute(key), value) - end - end - end + elsif table.associated_with?(key) + # Find the foreign key when using queries such as: + # Post.where(author: author) + # + # For polymorphic relationships, find the foreign key and type: + # PriceEstimate.where(estimate_of: treasure) + associated_table = table.associated_table(key) + if associated_table.polymorphic_association? + case value.is_a?(Array) ? value.first : value + when Base, Relation + value = [value] unless value.is_a?(Array) + klass = PolymorphicArrayValue + end + end - def create_binds_for_hash(attributes) - result = attributes.dup - binds = [] - - attributes.each do |column_name, value| - case - when value.is_a?(Hash) && !table.has_column?(column_name) - attrs, bvs = associated_predicate_builder(column_name).create_binds_for_hash(value) - result[column_name] = attrs - binds += bvs - next - when value.is_a?(Relation) - binds += value.bound_attributes - when value.is_a?(Range) && !table.type(column_name).respond_to?(:subtype) - first = value.begin - last = value.end - unless first.respond_to?(:infinite?) && first.infinite? - binds << build_bind_param(column_name, first) - first = Arel::Nodes::BindParam.new + klass ||= AssociationQueryValue + queries = klass.new(associated_table, value).queries.map do |query| + expand_from_hash(query).reduce(&:and) end - unless last.respond_to?(:infinite?) && last.infinite? - binds << build_bind_param(column_name, last) - last = Arel::Nodes::BindParam.new + queries.reduce(&:or) + elsif table.aggregated_with?(key) + mapping = table.reflect_on_aggregation(key).mapping + queries = Array.wrap(value).map do |object| + mapping.map do |field_attr, aggregate_attr| + if mapping.size == 1 && !object.respond_to?(aggregate_attr) + build(table.arel_attribute(field_attr), object) + else + build(table.arel_attribute(field_attr), object.send(aggregate_attr)) + end + end.reduce(&:and) end - - result[column_name] = RangeHandler::RangeWithBinds.new(first, last, value.exclude_end?) + queries.reduce(&:or) else - if can_be_bound?(column_name, value) - result[column_name] = Arel::Nodes::BindParam.new - binds << build_bind_param(column_name, value) - end - end - - # Find the foreign key when using queries such as: - # Post.where(author: author) - # - # For polymorphic relationships, find the foreign key and type: - # PriceEstimate.where(estimate_of: treasure) - if table.associated_with?(column_name) - result[column_name] = AssociationQueryHandler.value_for(table, column_name, value) + build(table.arel_attribute(key), value) end end - - [result, binds] end private + attr_reader :table def associated_predicate_builder(association_name) self.class.new(table.associated_table(association_name)) @@ -153,19 +132,14 @@ module ActiveRecord def handler_for(object) @handlers.detect { |klass, _| klass === object }.last end - - def can_be_bound?(column_name, value) - return if table.associated_with?(column_name) - case value - when Array, Range - table.type(column_name).respond_to?(:subtype) - else - !value.nil? && handler_for(value).is_a?(BasicObjectHandler) - end - end - - def build_bind_param(column_name, value) - Relation::QueryAttribute.new(column_name.to_s, value, table.type(column_name)) - end end end + +require "active_record/relation/predicate_builder/array_handler" +require "active_record/relation/predicate_builder/base_handler" +require "active_record/relation/predicate_builder/basic_object_handler" +require "active_record/relation/predicate_builder/range_handler" +require "active_record/relation/predicate_builder/relation_handler" + +require "active_record/relation/predicate_builder/association_query_value" +require "active_record/relation/predicate_builder/polymorphic_array_value" |