1 files changed, 30 insertions, 0 deletions
diff --git a/app/graphql/types/todoable_interface.rb b/app/graphql/types/todoable_interface.rb
new file mode 100644
index 00000000000..7d437973c12
--- /dev/null
+++ b/app/graphql/types/todoable_interface.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+module Types
+  module TodoableInterface
+    include Types::BaseInterface
+
+    graphql_name 'Todoable'
+
+    field :web_url, GraphQL::Types::String, null: true, description: 'URL of this object.'
+
+    def self.resolve_type(object, context)
+      case object
+      when Issue
+        Types::IssueType
+      when MergeRequest
+        Types::MergeRequestType
+      when ::DesignManagement::Design
+        Types::DesignManagement::DesignType
+      when ::AlertManagement::Alert
+        Types::AlertManagement::AlertType
+      when Commit
+        Types::CommitType
+      else
+        raise "Unknown GraphQL type for #{object}"
+      end
+    end
+  end
+end
+
+Types::TodoableInterface.prepend_mod