diff options
Diffstat (limited to 'activerecord/lib/active_record/associations.rb')
| -rwxr-xr-x | activerecord/lib/active_record/associations.rb | 42 |
1 files changed, 10 insertions, 32 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index b52b298027..ebf1a41e85 100755 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -774,13 +774,12 @@ module ActiveRecord # [collection.build(attributes = {}, ...)] # Returns one or more new objects of the collection type that have been instantiated # with +attributes+ and linked to this object through a foreign key, but have not yet - # been saved. <b>Note:</b> This only works if an associated object already exists, not if - # it's +nil+! + # been saved. # [collection.create(attributes = {})] # Returns a new object of the collection type that has been instantiated # with +attributes+, linked to this object through a foreign key, and that has already - # been saved (if it passed the validation). <b>Note:</b> This only works if an associated - # object already exists, not if it's +nil+! + # been saved (if it passed the validation). *Note*: This only works if the base model + # already exists in the DB, not if it is a new (unsaved) record! # # (*Note*: +collection+ is replaced with the symbol passed as the first argument, so # <tt>has_many :clients</tt> would add among others <tt>clients.empty?</tt>.) @@ -1040,7 +1039,6 @@ module ActiveRecord # A Post class declares <tt>belongs_to :author</tt>, which will add: # * <tt>Post#author</tt> (similar to <tt>Author.find(author_id)</tt>) # * <tt>Post#author=(author)</tt> (similar to <tt>post.author_id = author.id</tt>) - # * <tt>Post#author?</tt> (similar to <tt>post.author == some_author</tt>) # * <tt>Post#build_author</tt> (similar to <tt>post.author = Author.new</tt>) # * <tt>Post#create_author</tt> (similar to <tt>post.author = Author.new; post.author.save; post.author</tt>) # The declaration can also include an options hash to specialize the behavior of the association. @@ -1703,30 +1701,19 @@ module ActiveRecord end def construct_finder_arel_with_included_associations(options, join_dependency) - relation = active_relation + relation = scoped for association in join_dependency.join_associations relation = association.join_relation(relation) end - relation = relation.joins(options[:joins]). - select(column_aliases(join_dependency)). - group(options[:group]). - having(options[:having]). - order(options[:order]). - where(options[:conditions]). - from(options[:from]) + relation = relation.apply_finder_options(options).select(column_aliases(join_dependency)) - scoped_relation = current_scoped_methods - scoped_relation_limit = scoped_relation.taken if scoped_relation - - relation = current_scoped_methods.except(:limit).merge(relation) if current_scoped_methods - - if !using_limitable_reflections?(join_dependency.reflections) && ((scoped_relation && scoped_relation.taken) || options[:limit]) + if !using_limitable_reflections?(join_dependency.reflections) && relation.limit_value relation = relation.where(construct_arel_limited_ids_condition(options, join_dependency)) end - relation = relation.limit(options[:limit] || scoped_relation_limit) if using_limitable_reflections?(join_dependency.reflections) + relation = relation.except(:limit, :offset) unless using_limitable_reflections?(join_dependency.reflections) relation end @@ -1754,23 +1741,14 @@ module ActiveRecord end def construct_finder_sql_for_association_limiting(options, join_dependency) - relation = active_relation + relation = scoped for association in join_dependency.join_associations relation = association.join_relation(relation) end - relation = relation.joins(options[:joins]). - where(options[:conditions]). - group(options[:group]). - having(options[:having]). - order(options[:order]). - limit(options[:limit]). - offset(options[:offset]). - from(options[:from]) - - relation = current_scoped_methods.except(:select, :includes, :eager_load).merge(relation) if current_scoped_methods - relation = relation.select(connection.distinct("#{connection.quote_table_name table_name}.#{primary_key}", options[:order])) + relation = relation.apply_finder_options(options).except(:select) + relation = relation.select(connection.distinct("#{connection.quote_table_name table_name}.#{primary_key}", relation.order_values.join(", "))) relation.to_sql end |