Basic GraphQL for a group

Add new query for Groups, with new
GroupType and NamespaceType

7 files changed, 75 insertions, 3 deletions

diff --git a/app/graphql/resolvers/full_path_resolver.rb b/app/graphql/resolvers/full_path_resolver.rb
index 0f1a64b6c58..972f318c806 100644
--- a/app/graphql/resolvers/full_path_resolver.rb
+++ b/app/graphql/resolvers/full_path_resolver.rb
@@ -7,14 +7,14 @@ module Resolvers
     prepended do
       argument :full_path, GraphQL::ID_TYPE,
                required: true,
-               description: 'The full path of the project or namespace, e.g., "gitlab-org/gitlab-ce"'
+               description: 'The full path of the project, group or namespace, e.g., "gitlab-org/gitlab-ce"'
     end
 
     def model_by_full_path(model, full_path)
       BatchLoader.for(full_path).batch(key: model) do |full_paths, loader, args|
         # `with_route` avoids an N+1 calculating full_path
-        args[:key].where_full_path_in(full_paths).with_route.each do |project|
-          loader.call(project.full_path, project)
+        args[:key].where_full_path_in(full_paths).with_route.each do |model_instance|
+          loader.call(model_instance.full_path, model_instance)
         end
       end
     end
diff --git a/app/graphql/resolvers/group_resolver.rb b/app/graphql/resolvers/group_resolver.rb
new file mode 100644
index 00000000000..4260e18829e
--- /dev/null
+++ b/app/graphql/resolvers/group_resolver.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+module Resolvers
+  class GroupResolver < BaseResolver
+    prepend FullPathResolver
+
+    type Types::GroupType, null: true
+
+    def resolve(full_path:)
+      model_by_full_path(Group, full_path)
+    end
+  end
+end
diff --git a/app/graphql/types/group_type.rb b/app/graphql/types/group_type.rb
new file mode 100644
index 00000000000..a2d615ee732
--- /dev/null
+++ b/app/graphql/types/group_type.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+module Types
+  class GroupType < NamespaceType
+    graphql_name 'Group'
+
+    authorize :read_group
+
+    expose_permissions Types::PermissionTypes::Group
+
+    field :web_url, GraphQL::STRING_TYPE, null: true
+
+    field :avatar_url, GraphQL::STRING_TYPE, null: true, resolve: -> (group, args, ctx) do
+      group.avatar_url(only_path: false)
+    end
+
+    if ::Group.supports_nested_objects?
+      field :parent, GroupType, null: true
+    end
+  end
+end
diff --git a/app/graphql/types/namespace_type.rb b/app/graphql/types/namespace_type.rb
new file mode 100644
index 00000000000..b1c5da50aa5
--- /dev/null
+++ b/app/graphql/types/namespace_type.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Types
+  class NamespaceType < BaseObject
+    graphql_name 'Namespace'
+
+    field :id, GraphQL::ID_TYPE, null: false
+    field :name, GraphQL::STRING_TYPE, null: false
+
+    field :path, GraphQL::STRING_TYPE, null: false
+    field :description, GraphQL::STRING_TYPE, null: true
+    field :visibility, GraphQL::STRING_TYPE, null: true
+    field :lfs_enabled, GraphQL::BOOLEAN_TYPE, null: true, method: :lfs_enabled?
+
+    field :request_access_enabled, GraphQL::BOOLEAN_TYPE, null: true
+    field :full_path, GraphQL::ID_TYPE, null: false
+    field :full_name, GraphQL::STRING_TYPE, null: false
+  end
+end
diff --git a/app/graphql/types/permission_types/group.rb b/app/graphql/types/permission_types/group.rb
new file mode 100644
index 00000000000..29833993ce6
--- /dev/null
+++ b/app/graphql/types/permission_types/group.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+module Types
+  module PermissionTypes
+    class Group < BasePermissionType
+      graphql_name 'GroupPermissions'
+
+      abilities :read_group
+    end
+  end
+end
diff --git a/app/graphql/types/project_type.rb b/app/graphql/types/project_type.rb
index fbb4eddd13c..baea6658e05 100644
--- a/app/graphql/types/project_type.rb
+++ b/app/graphql/types/project_type.rb
@@ -66,6 +66,9 @@ module Types
     field :only_allow_merge_if_all_discussions_are_resolved, GraphQL::BOOLEAN_TYPE, null: true
     field :printing_merge_request_link_enabled, GraphQL::BOOLEAN_TYPE, null: true
 
+    field :namespace, Types::NamespaceType, null: false
+    field :group, Types::GroupType, null: true
+
     field :merge_requests,
           Types::MergeRequestType.connection_type,
           null: true,
diff --git a/app/graphql/types/query_type.rb b/app/graphql/types/query_type.rb
index 0f655ab9d03..40d7de1a49a 100644
--- a/app/graphql/types/query_type.rb
+++ b/app/graphql/types/query_type.rb
@@ -9,6 +9,11 @@ module Types
           resolver: Resolvers::ProjectResolver,
           description: "Find a project"
 
+    field :group, Types::GroupType,
+          null: true,
+          resolver: Resolvers::GroupResolver,
+          description: "Find a group"
+
     field :metadata, Types::MetadataType,
           null: true,
           resolver: Resolvers::MetadataResolver,