Merge pull request creativecommons#452 from creativecommons/update_featured_project

add condition to slack link

Author: Dhruvi16

themes/vocabulary_theme/templates/blocks/featured-projects.html

@@ -32,11 +32,13 @@ <h4 class="card-title b-header"><a href="{{ repo.url }}">{{ repo.english_name }}
                   <i class="icon github"></i>
                   <span class="link-content">Github Repository</span>
                 </a>
-                <br>
-                <a class="button is-text tiny" href="https://creativecommons.slack.com/channels/{{ repo.slack }}">
-                  <i class="icon slack"></i>
-                  <span class="link-content">Slack channel (#{{ repo.slack }})</span>
-                </a>
+                {% if repo.slack %}
+                  <br>
+                  <a class="button is-text tiny" href="https://creativecommons.slack.com/channels/{{ repo.slack }}">
+                    <i class="icon slack"></i>
+                    <span class="link-content">Slack channel (#{{ repo.slack }})</span>
+                  </a>
+                {% endif %}
               </div>
             </div>
           </article>

themes/vocabulary_theme/templates/project_list.html

@@ -38,11 +38,13 @@ <h4 class="card-title b-header"><a href="{{ repo.url }}">{{ repo.english_name }}
                       <i class="icon github"></i>
                       <span class="link-content">Github Repository</span>
                     </a>
-                    <br>
-                    <a class="button is-text tiny" href="https://creativecommons.slack.com/channels/{{ repo.slack }}">
-                      <i class="icon slack"></i>
-                      <span class="link-content">Slack channel (#{{ repo.slack }})</span>
-                    </a>
+                    {% if repo.slack %}
+                      <br>
+                      <a class="button is-text tiny" href="https://creativecommons.slack.com/channels/{{ repo.slack }}">
+                        <i class="icon slack"></i>
+                        <span class="link-content">Slack channel (#{{ repo.slack }})</span>
+                      </a>
+                    {% endif %}
                   </div>
                 </div>
               </article>