Card image pagination

* Delete unused template
* Do not show SubGuide heading if there are not any SubGuide cards 
* Removed home link from the show pages 

Co-authored-by: Anna Headley <hackartisan@users.noreply.github.com>
Co-authored-by: Bess Sadler <bess@users.noreply.github.com>

app/controllers/guide_cards_controller.rb

@@ -23,6 +23,6 @@ def search
   def show
     @guide_card = GuideCard.find(params[:id])
     @sub_guide_cards = @guide_card.children
-    @card_images = CardImage.where(path: @guide_card.path)
+    @card_images = CardImage.where(path: @guide_card.path).page(params[:page])
   end
 end

app/models/card_image.rb

@@ -2,7 +2,7 @@
 
 # Class for CardImage data models
 class CardImage < ApplicationRecord
-  paginates_per 8
+  paginates_per 10
   def iiif_url
     "https://puliiif.princeton.edu/iiif/2/#{image_name.gsub('.tif', '')}/full/,500/0/default.jpg"
   end

app/views/guide_cards/show.html.erb

@@ -1,16 +1,18 @@
 <h2>Guide: <%= @guide_card.heading %></h2>
 
-<%= render "shared/return_to_home" %>
+<% if @sub_guide_cards.present? %>
+  <h3>SubGuide Cards</h3>
+  <ul id="sg_index">
+    <% @sub_guide_cards.each do |sub_guide| %>
+      <li> <%= link_to sub_guide.heading, sub_guide_card_path(sub_guide.id) %> </li>
+    <% end %>
+  </ul>
+<% end %>
 
-<h3>List of SubGuide Cards</h3>
-<ul id="sg_index">
-  <% @sub_guide_cards.each do |sub_guide| %>
-    <li> <%= link_to sub_guide.heading, sub_guide_card_path(sub_guide.id) %> </li>
-  <% end %>
-</ul>
-
- <% @card_images.each do |image| %>
+<% @card_images.each do |image| %>
    <ul>
     <%= image_tag(image.iiif_url, alt: "Catalog Card") %>
    </ul> 
- <% end %>
+<% end %>
+
+<%= paginate @card_images %>

app/views/sub_guide_cards/show.html.erb

@@ -1,8 +1,6 @@
 <h2>SubGuide: <%= @sub_guide_card.heading %></h2>
 <p><%= page_entries_info @card_images, entry_name: 'card' %></p>
 
-<%= render "shared/return_to_home" %>
-
 <%= paginate @card_images %>
 
 <% if @sub_guide_card.children.present? %>

spec/system/card_image_pagination_spec.rb

@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'Card Images Pagination', type: :system, js: true do
+  let(:guide_card_fixture) { Rails.root.join('spec', 'fixtures', 'guide_card_fixture.csv') }
+  before do
+    GuideCardLoadingService.new(csv_location: guide_card_fixture).import
+    (1..21).each do |i|
+      ci = CardImage.new
+      ci.path = '14/0001/B4491'
+      ci.image_name = "fake_image_#{i}.jpg"
+      ci.save
+    end
+  end
+
+  describe 'GuideCards show page' do
+    it 'displays and paginates through card images' do
+      visit '/guide_cards/2'
+      expect(page.all('div#main-content ul img').count).to eq 10
+      expect(page.all('div#main-content ul img').last[:src]).to match(/fake_image_10.jpg/)
+      expect(page).to have_link('Next', href: '/guide_cards/2?page=2')
+      click_link('Next')
+      expect(page.all('div#main-content ul img')[3][:src]).to match(/fake_image_14.jpg/)
+    end
+  end
+end

spec/system/guide_cards_spec.rb

@@ -41,4 +41,11 @@
       expect(page).to have_selector('img[alt]')
     end
   end
+
+  context 'when a GuideCard has no SubGuide cards' do
+    it 'displays text to that effect' do
+      visit '/guide_cards/2'
+      expect(page).not_to have_text('SubGuide Cards')
+    end
+  end
 end