Add source and target branch filters to merge requests API

1 files changed, 28 insertions, 0 deletions

diff --git a/app/finders/merge_requests_finder.rb b/app/finders/merge_requests_finder.rb
index d0687d28c21..068ae7f8c89 100644
--- a/app/finders/merge_requests_finder.rb
+++ b/app/finders/merge_requests_finder.rb
@@ -17,14 +17,42 @@
 #     sort: string
 #     non_archived: boolean
 #     my_reaction_emoji: string
+#     source_branch: string
+#     target_branch: string
 #
 class MergeRequestsFinder < IssuableFinder
   def klass
     MergeRequest
   end
 
+  def filter_items(_items)
+    items = by_source_branch(super)
+
+    by_target_branch(items)
+  end
+
   private
 
+  def source_branch
+    @source_branch ||= params[:source_branch].presence
+  end
+
+  def by_source_branch(items)
+    return items unless source_branch
+
+    items.where(source_branch: source_branch)
+  end
+
+  def target_branch
+    @target_branch ||= params[:target_branch].presence
+  end
+
+  def by_target_branch(items)
+    return items unless target_branch
+
+    items.where(target_branch: target_branch)
+  end
+
   def item_project_ids(items)
     items&.reorder(nil)&.select(:target_project_id)
   end