filter alumni

app/controllers/admin/university/alumni_controller.rb

@@ -4,6 +4,7 @@ class Admin::University::AlumniController < Admin::University::ApplicationContro
                               through_association: :people
 
   has_scope :for_search_term
+  has_scope :for_alumni_organization
   has_scope :for_alumni_program
   has_scope :for_alumni_year
 

app/models/university/person/with_experiences.rb

@@ -12,6 +12,13 @@ module University::Person::WithExperiences
 
     validates_associated :experiences
 
+    scope :for_alumni_organization, -> (organization_id) {
+      left_joins(:experiences)
+        .where(university_person_experiences: { organization_id: organization_id })
+        .select("university_people.*")
+        .distinct
+    }
+  
   end
 
 end

app/services/filters/admin/university/alumni.rb

@@ -2,7 +2,12 @@ module Filters
   class Admin::University::Alumni < Filters::Base
     def initialize(user)
       super
-      add_search
+      add :for_alumni_organization,
+          user.university.organizations.ordered,
+          I18n.t(
+            'filters.attributes.element',
+            element: University::Organization.model_name.human.downcase
+          )
       add :for_alumni_program,
           user.university.education_programs,
           I18n.t(
@@ -17,6 +22,7 @@ module Filters
             'filters.attributes.element',
             element: Education::AcademicYear.model_name.human.downcase
           )
+      add_search
     end
   end
 end