diff options
Diffstat (limited to 'activerecord/lib/active_record')
| -rw-r--r-- | activerecord/lib/active_record/associations/association_scope.rb | 12 | ||||
| -rw-r--r-- | activerecord/lib/active_record/relation/merger.rb | 36 |
2 files changed, 27 insertions, 21 deletions
diff --git a/activerecord/lib/active_record/associations/association_scope.rb b/activerecord/lib/active_record/associations/association_scope.rb index 300f67959d..c5fb1fe2c7 100644 --- a/activerecord/lib/active_record/associations/association_scope.rb +++ b/activerecord/lib/active_record/associations/association_scope.rb @@ -15,7 +15,6 @@ module ActiveRecord def scope scope = klass.unscoped - scope.merge! eval_scope(klass, reflection.scope) if reflection.scope scope.extending! Array(options[:extend]) add_constraints(scope) end @@ -59,7 +58,7 @@ module ActiveRecord if reflection.source_macro == :belongs_to if reflection.options[:polymorphic] - key = reflection.association_primary_key(klass) + key = reflection.association_primary_key(self.klass) else key = reflection.association_primary_key end @@ -92,8 +91,13 @@ module ActiveRecord # Exclude the scope of the association itself, because that # was already merged in the #scope method. - (scope_chain[i] - [self.reflection.scope]).each do |scope_chain_item| - item = eval_scope(reflection.klass, scope_chain_item) + scope_chain[i].each do |scope_chain_item| + klass = i == 0 ? self.klass : reflection.klass + item = eval_scope(klass, scope_chain_item) + + if scope_chain_item == self.reflection.scope + scope.merge! item.except(:where, :includes) + end scope.includes! item.includes_values scope.where_values += item.where_values diff --git a/activerecord/lib/active_record/relation/merger.rb b/activerecord/lib/active_record/relation/merger.rb index 59226d316e..eb23e92fb8 100644 --- a/activerecord/lib/active_record/relation/merger.rb +++ b/activerecord/lib/active_record/relation/merger.rb @@ -1,4 +1,5 @@ require 'active_support/core_ext/hash/keys' +require "set" module ActiveRecord class Relation @@ -105,25 +106,26 @@ module ActiveRecord end def merged_wheres - if values[:where] - merged_wheres = relation.where_values + values[:where] - - unless relation.where_values.empty? - # Remove equalities with duplicated left-hand. Last one wins. - seen = {} - merged_wheres = merged_wheres.reverse.reject { |w| - nuke = false - if w.respond_to?(:operator) && w.operator == :== - nuke = seen[w.left] - seen[w.left] = true - end - nuke - }.reverse - end + values[:where] ||= [] - merged_wheres + if values[:where].empty? || relation.where_values.empty? + relation.where_values + values[:where] else - relation.where_values + # Remove equalities from the existing relation with a LHS which is + # present in the relation being merged in. + + seen = Set.new + values[:where].each { |w| + if w.respond_to?(:operator) && w.operator == :== + seen << w.left + end + } + + relation.where_values.reject { |w| + w.respond_to?(:operator) && + w.operator == :== && + seen.include?(w.left) + } + values[:where] end end end |