Updated projects api to allow ordering

Added support for order_by and sort parameters, to sort the projects by the specified values.
Updated projects api documentation including the order_by and sort parameters

doc/api/projects.md

@@ -11,6 +11,8 @@ GET /projects
 Parameters:
 
 - `archived` (optional) - if passed, limit by archived status
+- `order_by` (optional) - Return requests ordered by `id`, `name`, `created_at` or `last_activity_at` fields
+- `sort` (optional) - Return requests sorted in `asc` or `desc` order
 
 ```json
 [
@@ -628,6 +630,8 @@ GET /projects/search/:query
 
 Parameters:
 
--   query (required) - A string contained in the project name
--   per_page (optional) - number of projects to return per page
--   page (optional) - the page to retrieve
+- `query` (required) - A string contained in the project name
+- `per_page` (optional) - number of projects to return per page
+- `page` (optional) - the page to retrieve
+- `order_by` (optional) - Return requests ordered by `id`, `name`, `created_at` or `last_activity_at` fields
+- `sort` (optional) - Return requests sorted in `asc` or `desc` order

lib/api/projects.rb

@@ -23,6 +23,19 @@ module API
       get do
         @projects = current_user.authorized_projects
 
+        sort = case params["sort"]
+                 when 'desc' then 'DESC'
+                 else 'ASC'
+               end
+
+        @projects = case params["order_by"]
+                      when 'id' then @projects.reorder("id #{sort}")
+                      when 'name' then @projects.reorder("name #{sort}")
+                      when 'created_at' then @projects.reorder("created_at #{sort}")
+                      when 'last_activity_at' then @projects.reorder("last_activity_at #{sort}")
+                      else @projects
+                    end
+
         # If the archived parameter is passed, limit results accordingly
         if params[:archived].present?
           @projects = @projects.where(archived: parse_boolean(params[:archived]))
@@ -37,7 +50,21 @@ module API
       # Example Request:
       #   GET /projects/owned
       get '/owned' do
-        @projects = paginate current_user.owned_projects
+        sort = case params["sort"]
+                 when 'desc' then 'DESC'
+                 else 'ASC'
+               end
+
+        @projects = current_user.owned_projects
+        @projects = case params["order_by"]
+                      when 'id' then @projects.reorder("id #{sort}")
+                      when 'name' then @projects.reorder("name #{sort}")
+                      when 'created_at' then @projects.reorder("created_at #{sort}")
+                      when 'last_activity_at' then @projects.reorder("last_activity_at #{sort}")
+                      else @projects
+                    end
+
+        @projects = paginate @projects
         present @projects, with: Entities::Project
       end
 
@@ -47,7 +74,21 @@ module API
       #   GET /projects/all
       get '/all' do
         authenticated_as_admin!
-        @projects = paginate Project
+
+        sort = case params["sort"]
+                 when 'desc' then 'DESC'
+                 else 'ASC'
+               end
+
+        @projects = case params["order_by"]
+                      when 'id' then Project.order("id #{sort}")
+                      when 'name' then Project.order("name #{sort}")
+                      when 'created_at' then Project.order("created_at #{sort}")
+                      when 'last_activity_at' then Project.order("last_activity_at #{sort}")
+                      else Project
+                    end
+
+        @projects = paginate @projects
         present @projects, with: Entities::Project
       end
 
@@ -227,6 +268,20 @@ module API
         ids = current_user.authorized_projects.map(&:id)
         visibility_levels = [ Gitlab::VisibilityLevel::INTERNAL, Gitlab::VisibilityLevel::PUBLIC ]
         projects = Project.where("(id in (?) OR visibility_level in (?)) AND (name LIKE (?))", ids, visibility_levels, "%#{params[:query]}%")
+
+        sort = case params["sort"]
+                 when 'desc' then 'DESC'
+                 else 'ASC'
+               end
+
+        projects = case params["order_by"]
+                     when 'id' then projects.order("id #{sort}")
+                     when 'name' then projects.order("name #{sort}")
+                     when 'created_at' then projects.order("created_at #{sort}")
+                     when 'last_activity_at' then projects.order("last_activity_at #{sort}")
+                     else projects
+                   end
+
         present paginate(projects), with: Entities::Project
       end