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-rw-r--r--activerecord/lib/active_record/relation/query_methods.rb28
1 files changed, 11 insertions, 17 deletions
diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb
index b8fd2fce14..50ff733dc7 100644
--- a/activerecord/lib/active_record/relation/query_methods.rb
+++ b/activerecord/lib/active_record/relation/query_methods.rb
@@ -1128,27 +1128,21 @@ module ActiveRecord
association_joins = buckets[:association_join]
stashed_joins = buckets[:stashed_join]
- join_nodes = buckets[:join_node].uniq
- string_joins = buckets[:string_join].map(&:strip).uniq
+ join_nodes = buckets[:join_node].tap(&:uniq!)
+ string_joins = buckets[:string_join].delete_if(&:blank?).map!(&:strip).tap(&:uniq!)
- join_list = join_nodes + convert_join_strings_to_ast(string_joins)
- alias_tracker = alias_tracker(join_list, aliases)
+ string_joins.map! { |join| table.create_string_join(Arel.sql(join)) }
- join_dependency = construct_join_dependency(association_joins, join_type)
+ join_sources = manager.join_sources
+ join_sources.concat(join_nodes) unless join_nodes.empty?
- joins = join_dependency.join_constraints(stashed_joins, alias_tracker)
- joins.each { |join| manager.from(join) }
-
- manager.join_sources.concat(join_list)
-
- alias_tracker.aliases
- end
+ unless association_joins.empty? && stashed_joins.empty?
+ alias_tracker = alias_tracker(join_nodes + string_joins, aliases)
+ join_dependency = construct_join_dependency(association_joins, join_type)
+ join_sources.concat(join_dependency.join_constraints(stashed_joins, alias_tracker))
+ end
- def convert_join_strings_to_ast(joins)
- joins
- .flatten
- .reject(&:blank?)
- .map { |join| table.create_string_join(Arel.sql(join)) }
+ join_sources.concat(string_joins) unless string_joins.empty?
end
def build_select(arel)