feat: add pagination to users #195

Author: hernanvicente

app/controllers/users_controller.rb

@@ -1,9 +1,11 @@
 class UsersController < ApplicationController
+  include Pagy::Backend
+
   before_action :redirect_contributors
   before_action :set_user, only: %i[ edit update destroy ]
 
   def index
-    @users = User.all.search_with_params(user_search_params)
+    @pagy, @users = pagy(User.all.search_with_params(user_search_params))
   end
 
   def new

app/views/users/index.html.erb

@@ -71,6 +71,9 @@
           <tbody>
         </table>
       </div>
+      <div class="card-footer d-flex justify-content-end">
+        <%== pagy_bootstrap_nav(@pagy) %>
+      </div>
     </div>
   </section>
 </div>

spec/views/users/index.html.erb_spec.rb

@@ -0,0 +1,52 @@
+require "rails_helper"
+
+RSpec.describe "users/index", type: :view do
+  context "when there are no users" do
+    before(:each) do
+      assign(:pagy, Pagy.new(count: 0))
+      assign(:users, [])
+    end
+
+    it "renders no users" do
+      render
+      assert_select "table>tbody>tr", count: 0
+    end
+  end
+
+  context "when there are users but only one page" do
+    before(:each) do
+      assign(:pagy, Pagy.new(count: 1))
+      assign(:users, [ create(:user, email: "[email protected]") ])
+    end
+
+    it "renders a list of users" do
+      render
+      assert_select "table>tbody>tr", count: 1
+    end
+
+    it "renders pagination nav without page links" do
+      render
+      assert_dom "nav.pagy-bootstrap .page-link", text: "1", count: 1
+    end
+  end
+
+  context "when there are multiple pages of users" do
+    before(:each) do
+      # Simulate being on page 2 with 10 items per page and 25 total items
+      pagy = Pagy.new(count: 25, page: 2, items: 10)
+      assign(:pagy, pagy)
+      assign(:users, create_list(:user, 10))
+    end
+
+    it "renders the current page of users" do
+      render
+      assert_select "table>tbody>tr", count: 10
+    end
+
+    it "renders pagination with multiple pages" do
+      render
+      assert_select "nav.pagy-bootstrap .page-item", minimum: 2
+      assert_dom "nav.pagy-bootstrap .page-item.active", text: "2", count: 1
+    end
+  end
+end