wip

app/controllers/admin/education/academic_years_controller.rb

+class Admin::Education::AcademicYearsController < Admin::Education::ApplicationController
+  load_and_authorize_resource class: Education::AcademicYear,
+                              through: :current_university,
+                              through_association: :academic_years
+
+  def index
+    breadcrumb
+  end
+
+  def show
+    breadcrumb
+  end
+
+  def new
+    breadcrumb
+  end
+
+  def edit
+    breadcrumb
+  end
+
+  def create
+    @academic_year.university = current_university
+    if @academic_year.save
+      redirect_to [:admin, @academic_year],
+                  notice: t('admin.successfully_created_html', model: @academic_year.to_s)
+    else
+      breadcrumb
+      render :new, status: :unprocessable_entity
+    end
+  end
+
+  def update
+    if @academic_year.update(academic_year_params)
+      redirect_to [:admin, @academic_year],
+                  notice: t('admin.successfully_updated_html', model: @academic_year.to_s)
+    else
+      render :edit, status: :unprocessable_entity
+    end
+  end
+
+  def destroy
+    @academic_year.destroy
+    redirect_to education_academic_years_url,
+                notice: t('admin.successfully_destroyed_html', model: @academic_year.to_s)
+  end
+
+  protected
+
+  def breadcrumb
+    super
+    add_breadcrumb Education::AcademicYear.model_name.human(count: 2), admin_education_academic_years_path
+    breadcrumb_for @academic_year
+  end
+
+  def academic_year_params
+    params.require(:education_academic_year)
+          .permit(:year)
+  end
+end

app/views/admin/education/academic_years/_list.html.erb

+<table class="<%= table_classes %>">
+  <thead>
+    <tr>
+      <th><%= Education::AcademicYear.human_attribute_name('year') %></th>
+      <th><%= Education::AcademicYear.human_attribute_name('cohorts') %></th>
+      <th><%= Education::AcademicYear.human_attribute_name('alumni') %></th>
+      <th></th>
+    </tr>
+  </thead>
+  <tbody>
+    <% academic_years.ordered.each do |academic_year| %>
+      <tr>
+        <td>
+          <%= link_to academic_year, [:admin, academic_year] %>
+        </td>
+        <td><%= academic_year.cohorts.count %></td>
+        <td><%= academic_year.people.count %></td>
+        <td class="text-end">
+          <div class="btn-group" role="group">
+            <%= edit_link academic_year %>
+            <%= destroy_link academic_year %>
+          </div>
+        </td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>

app/views/admin/education/academic_years/index.html.erb

+<% content_for :title, Education::AcademicYear.model_name.human(count: 2) %>
+
+<%= render 'admin/education/academic_years/list', academic_years: @academic_years %>

app/views/admin/education/academic_years/show.html.erb

+<% content_for :title, @academic_year %>

app/views/admin/education/cohorts/_list.html.erb

+<table class="<%= table_classes %>">
+  <thead>
+    <tr>
+      <th><%= Education::Cohort.human_attribute_name('year') %></th>
+      <th><%= Education::Cohort.human_attribute_name('program') %></th>
+      <th><%= Education::Cohort.human_attribute_name('alumni') %></th>
+      <th></th>
+    </tr>
+  </thead>
+  <tbody>
+    <% cohorts.ordered.each do |cohort| %>
+      <tr>
+        <td>
+          <%= link_to [:admin, cohort] do %>
+            <%= cohort.academic_year %>
+            <%= cohort.name %>
+          <% end %>
+        </td>
+        <td><%= link_to cohort.program, [:admin, cohort.program] %></td>
+        <td><%= cohort.people.count %></td>
+        <td class="text-end">
+          <div class="btn-group" role="group">
+            <%= edit_link cohort %>
+            <%= destroy_link cohort %>
+          </div>
+        </td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>

app/views/admin/education/programs/show/_cohorts.html.erb

+<% if @program.cohorts.any? %>
+  <div class="card flex-fill w-100">
+    <div class="card-header">
+      <h5 class="card-title mb-0"><%= Education::Cohort.model_name.human(count: 2) %></h5>
+    </div>
+    <table class="<%= table_classes %>">
+      <thead>
+        <tr>
+          <th><%= Education::Cohort.human_attribute_name('year') %></th>
+          <th><%= Education::Cohort.human_attribute_name('alumni') %></th>
+        </tr>
+      </thead>
+      <tbody>
+        <% @program.cohorts.ordered.each do |cohort| %>
+          <tr>
+            <td>
+              <%= link_to [:admin, cohort] do %>
+                <%= cohort.academic_year %>
+                <%= cohort.name %>
+              <% end %>
+            </td>
+            <td><%= cohort.people.count %></td>
+          </tr>
+        <% end %>
+      </tbody>
+    </table>
+  </div>
+<% end %>

db/migrate/20220324081520_add_text_to_university_organization.rb

+class AddTextToUniversityOrganization < ActiveRecord::Migration[6.1]
+  def change
+    add_column :university_organizations, :text, :text
+  end
+end