diff options
Diffstat (limited to 'activerecord/lib/active_record/relation')
| -rw-r--r-- | activerecord/lib/active_record/relation/finder_methods.rb | 33 | ||||
| -rw-r--r-- | activerecord/lib/active_record/relation/merger.rb | 2 | ||||
| -rw-r--r-- | activerecord/lib/active_record/relation/query_methods.rb | 2 |
3 files changed, 19 insertions, 18 deletions
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index c92d5a52f4..6e07402979 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -310,12 +310,12 @@ module ActiveRecord return false if !conditions || limit_value == 0 - relation = self unless eager_loading? - relation ||= apply_join_dependency(self, construct_join_dependency(eager_loading: false)) - - return false if ActiveRecord::NullRelation === relation + if eager_loading? + relation = apply_join_dependency(construct_join_dependency(eager_loading: false)) + return relation.exists?(conditions) + end - relation = construct_relation_for_exists(relation, conditions) + relation = construct_relation_for_exists(conditions) skip_query_cache_if_necessary { connection.select_value(relation.arel, "#{name} Exists") } ? true : false rescue ::RangeError @@ -366,17 +366,16 @@ module ActiveRecord # preexisting join in joins_values to categorizations (by way of # the `has_many :through` for categories). # - join_dependency = construct_join_dependency(joins_values) + join_dependency = construct_join_dependency - aliases = join_dependency.aliases - relation = select aliases.columns - relation = apply_join_dependency(relation, join_dependency) + relation = apply_join_dependency(join_dependency) + relation._select!(join_dependency.aliases.columns) yield relation, join_dependency end - def construct_relation_for_exists(relation, conditions) - relation = relation.except(:select, :distinct, :order)._select!(ONE_AS_ONE).limit!(1) + def construct_relation_for_exists(conditions) + relation = except(:select, :distinct, :order)._select!(ONE_AS_ONE).limit!(1) case conditions when Array, Hash @@ -388,17 +387,19 @@ module ActiveRecord relation end - def construct_join_dependency(joins = [], eager_loading: true) + def construct_join_dependency(eager_loading: true) including = eager_load_values + includes_values - ActiveRecord::Associations::JoinDependency.new(klass, table, including, joins, eager_loading: eager_loading) + ActiveRecord::Associations::JoinDependency.new( + klass, table, including, alias_tracker(joins_values), eager_loading: eager_loading + ) end def construct_relation_for_association_calculations - apply_join_dependency(self, construct_join_dependency(joins_values)) + apply_join_dependency(construct_join_dependency) end - def apply_join_dependency(relation, join_dependency) - relation = relation.except(:includes, :eager_load, :preload).joins!(join_dependency) + def apply_join_dependency(join_dependency) + relation = except(:includes, :eager_load, :preload).joins!(join_dependency) if using_limitable_reflections?(join_dependency.reflections) relation diff --git a/activerecord/lib/active_record/relation/merger.rb b/activerecord/lib/active_record/relation/merger.rb index 03824ffff9..ebc72d28fd 100644 --- a/activerecord/lib/active_record/relation/merger.rb +++ b/activerecord/lib/active_record/relation/merger.rb @@ -122,7 +122,7 @@ module ActiveRecord end join_dependency = ActiveRecord::Associations::JoinDependency.new( - other.klass, other.table, joins_dependency, [] + other.klass, other.table, joins_dependency, other.alias_tracker ) relation.joins! rest diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index e76ad05b71..fb5beeffef 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -1013,7 +1013,7 @@ module ActiveRecord join_list = join_nodes + convert_join_strings_to_ast(manager, string_joins) join_dependency = ActiveRecord::Associations::JoinDependency.new( - klass, table, association_joins, join_list + klass, table, association_joins, alias_tracker(join_list) ) joins = join_dependency.join_constraints(stashed_association_joins, join_type) |