1 files changed, 23 insertions, 0 deletions
diff --git a/app/services/members/unassign_issuables_service.rb b/app/services/members/unassign_issuables_service.rb
new file mode 100644
index 00000000000..95e07deb761
--- /dev/null
+++ b/app/services/members/unassign_issuables_service.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module Members
+  class UnassignIssuablesService
+    attr_reader :user, :entity
+
+    def initialize(user, entity)
+      @user = user
+      @entity = entity
+    end
+
+    def execute
+      return unless entity && user
+
+      project_ids = entity.is_a?(Group) ? entity.all_projects.select(:id) : [entity.id]
+
+      user.issue_assignees.on_issues(Issue.in_projects(project_ids).select(:id)).delete_all
+      user.merge_request_assignees.in_projects(project_ids).delete_all
+
+      user.invalidate_cache_counts
+    end
+  end
+end