Refactor Admin::ProjectsFinder by extracting finders as private methods

app/controllers/admin/projects_controller.rb

@@ -3,9 +3,9 @@ class Admin::ProjectsController < Admin::ApplicationController
   before_action :group, only: [:show, :transfer]
 
   def index
-    finder    = Admin::ProjectsFinder.new(params: params, current_user: current_user)
-    @projects = finder.execute
-    @sort     = finder.sort
+    params[:sort] ||= 'latest_activity_desc'
+    @sort = params[:sort]
+    @projects = Admin::ProjectsFinder.new(params: params, current_user: current_user).execute
 
     respond_to do |format|
       format.html

app/finders/admin/projects_finder.rb

 class Admin::ProjectsFinder
-  attr_reader :sort, :namespace_id, :visibility_level, :with_push,
-              :abandoned, :last_repository_check_failed, :archived,
-              :personal, :name, :page, :current_user
+  attr_reader :params, :current_user
 
   def initialize(params:, current_user:)
+    @params = params
     @current_user = current_user
-    @sort = params.fetch(:sort) { 'latest_activity_desc' }
-    @namespace_id = params[:namespace_id]
-    @visibility_level = params[:visibility_level]
-    @with_push = params[:with_push]
-    @abandoned = params[:abandoned]
-    @last_repository_check_failed = params[:last_repository_check_failed]
-    @archived = params[:archived]
-    @personal = params[:personal]
-    @name = params[:name]
-    @page = params[:page]
   end
 
   def execute
     items = Project.without_deleted.with_statistics
-    items = items.in_namespace(namespace_id) if namespace_id.present?
-    items = items.where(visibility_level: visibility_level) if visibility_level.present?
-    items = items.with_push if with_push.present?
-    items = items.abandoned if abandoned.present?
-    items = items.where(last_repository_check_failed: true) if last_repository_check_failed.present?
-    items = items.non_archived unless archived.present?
-    items = items.personal(current_user) if personal.present?
-    items = items.search(name) if name.present?
-    items = items.sort(sort)
-    items.includes(:namespace).order("namespaces.path, projects.name ASC").page(page)
+    items = by_namespace_id(items)
+    items = by_visibilty_level(items)
+    items = by_with_push(items)
+    items = by_abandoned(items)
+    items = by_last_repository_check_failed(items)
+    items = by_archived(items)
+    items = by_personal(items)
+    items = by_name(items)
+    items = sort(items)
+    items.includes(:namespace).order("namespaces.path, projects.name ASC").page(params[:page])
+  end
+
+  private
+
+  def by_namespace_id(items)
+    params[:namespace_id].present? ? items.in_namespace(params[:namespace_id]) : items
+  end
+
+  def by_visibilty_level(items)
+    params[:visibility_level].present? ? items.where(visibility_level: params[:visibility_level]) : items
+  end
+
+  def by_with_push(items)
+    params[:with_push].present? ? items.with_push : items
+  end
+
+  def by_abandoned(items)
+    params[:abandoned].present? ? items.abandoned : items
+  end
+
+  def by_last_repository_check_failed(items)
+    params[:last_repository_check_failed].present? ? items.where(last_repository_check_failed: true) : items
+  end
+
+  def by_archived(items)
+    items.non_archived unless params[:archived].present?
+  end
+
+  def by_personal(items)
+    params[:personal].present? ? items.personal(current_user) : items
+  end
+
+  def by_name(items)
+    params[:name].present? ? items.search(params[:name]) : items
+  end
+
+  def sort(items)
+    sort = params.fetch(:sort) { 'latest_activity_desc' }
+    items.sort(sort)
   end
 end