diff options
Diffstat (limited to 'app/graphql/resolvers/user_resolver.rb')
-rw-r--r-- | app/graphql/resolvers/user_resolver.rb | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/app/graphql/resolvers/user_resolver.rb b/app/graphql/resolvers/user_resolver.rb new file mode 100644 index 00000000000..a34cecba491 --- /dev/null +++ b/app/graphql/resolvers/user_resolver.rb @@ -0,0 +1,43 @@ +# frozen_string_literal: true + +module Resolvers + class UserResolver < BaseResolver + description 'Retrieve a single user' + + type Types::UserType, null: true + + argument :id, GraphQL::ID_TYPE, + required: false, + description: 'ID of the User' + + argument :username, GraphQL::STRING_TYPE, + required: false, + description: 'Username of the User' + + def ready?(id: nil, username: nil) + unless id.present? ^ username.present? + raise Gitlab::Graphql::Errors::ArgumentError, 'Provide either a single username or id' + end + + super + end + + def resolve(id: nil, username: nil) + if id + GitlabSchema.object_from_id(id, expected_type: User) + else + batch_load(username) + end + end + + private + + def batch_load(username) + BatchLoader::GraphQL.for(username).batch do |usernames, loader| + User.by_username(usernames).each do |user| + loader.call(user.username, user) + end + end + end + end +end |