GraphQL mutations for add, remove and toggle emoji62826-graphql-emoji-mutations

Adding new `AddAwardEmoji`, `RemoveAwardEmoji` and `ToggleAwardEmoji`
GraphQL mutations.

Adding new `#authorized_find_with_pre_checks!` and (unused, but for
completeness `#authorized_find_with_post_checks!`) authorization
methods. These allow us to perform an authorized find, and run our own
additional checks before or after the authorization runs.

https://gitlab.com/gitlab-org/gitlab-ce/issues/62826

1 files changed, 41 insertions, 0 deletions

diff --git a/app/graphql/mutations/award_emojis/base.rb b/app/graphql/mutations/award_emojis/base.rb
new file mode 100644
index 00000000000..d868db84f9d
--- /dev/null
+++ b/app/graphql/mutations/award_emojis/base.rb
@@ -0,0 +1,41 @@
+# frozen_string_literal: true
+
+module Mutations
+  module AwardEmojis
+    class Base < BaseMutation
+      include Gitlab::Graphql::Authorize::AuthorizeResource
+
+      authorize :award_emoji
+
+      argument :awardable_id,
+               GraphQL::ID_TYPE,
+               required: true,
+               description: 'The global id of the awardable resource'
+
+      argument :name,
+               GraphQL::STRING_TYPE,
+               required: true,
+               description: copy_field_description(Types::AwardEmojis::AwardEmojiType, :name)
+
+      field :award_emoji,
+            Types::AwardEmojis::AwardEmojiType,
+            null: true,
+            description: 'The award emoji after mutation'
+
+      private
+
+      def find_object(id:)
+        GitlabSchema.object_from_id(id)
+      end
+
+      # Called by mutations methods after performing an authorization check
+      # of an awardable object.
+      def check_object_is_awardable!(object)
+        unless object.is_a?(Awardable) && object.emoji_awardable?
+          raise Gitlab::Graphql::Errors::ResourceNotAvailable,
+                'Cannot award emoji to this resource'
+        end
+      end
+    end
+  end
+end