init project

app/queries/admins/department_query.rb

@@ -0,0 +1,32 @@
+class Admins::DepartmentQuery < ApplicationQuery
+  include CustomSortable
+
+  attr_reader :params
+
+  sort_columns :created_at, default_by: :created_at, default_direction: :desc
+
+  def initialize(params)
+    @params = params
+  end
+
+  def call
+    departments = Department.where(is_auth: true).without_deleted
+
+    keyword = params[:keyword].to_s.strip
+    if keyword.present?
+      departments = departments.joins(:school)
+                      .where('schools.name LIKE :keyword OR departments.name LIKE :keyword', keyword: "%#{keyword}%")
+    end
+
+    if params[:with_member].to_s == 'true'
+      subquery = DepartmentMember.where('department_id = departments.id').select('1 AS one').to_sql
+      departments = departments.where("EXISTS(#{subquery})")
+    end
+
+    if params[:with_identifier].to_s == 'true'
+      departments = departments.where.not(identifier: nil).where.not(identifier: '')
+    end
+
+    custom_sort(departments, params[:sort_by], params[:sort_direction])
+  end
+end