diff options
Diffstat (limited to 'activerecord/lib/active_record/relation/merger.rb')
| -rw-r--r-- | activerecord/lib/active_record/relation/merger.rb | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/activerecord/lib/active_record/relation/merger.rb b/activerecord/lib/active_record/relation/merger.rb index 36f98c6480..e5b50673da 100644 --- a/activerecord/lib/active_record/relation/merger.rb +++ b/activerecord/lib/active_record/relation/merger.rb @@ -1,9 +1,8 @@ -require 'active_support/core_ext/object/blank' require 'active_support/core_ext/hash/keys' module ActiveRecord class Relation - class HashMerger + class HashMerger # :nodoc: attr_reader :relation, :hash def initialize(relation, hash) @@ -28,7 +27,7 @@ module ActiveRecord end end - class Merger + class Merger # :nodoc: attr_reader :relation, :values def initialize(relation, other) @@ -98,15 +97,13 @@ module ActiveRecord merged_wheres = relation.where_values + values[:where] unless relation.where_values.empty? - # Remove duplicates, last one wins. - seen = Hash.new { |h,table| h[table] = {} } + # 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 == :== - name = w.left.name - table = w.left.relation.name - nuke = seen[table][name] - seen[table][name] = true + nuke = seen[w.left] + seen[w.left] = true end nuke }.reverse |