init project

app/controllers/departments_controller.rb

@@ -0,0 +1,13 @@
+class DepartmentsController < ApplicationController
+  skip_before_action :check_sign
+
+  def for_option
+    render_ok(departments: current_school.departments.without_deleted.select(:id, :name).as_json)
+  end
+
+  private
+
+  def current_school
+    @_current_school ||= School.find(params[:id])
+  end
+end