[#2304] Initial implementation of follow button

ckan · Apr 23, 2012 · ab75728 · ab75728
1 parent 3d040bb
commit ab75728
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Showing 3 changed files with 40 additions and 0 deletions.
diff --git a/ckan/logic/action/create.py b/ckan/logic/action/create.py
@@ -486,6 +486,16 @@ def follower_create(context, follower_dict):
     schema = (context.get('schema')
             or ckan.logic.schema.default_create_follower_schema())
 
+    # If no follower_id is given in follower_dict, we use the logged-in user.
+    if not follower_dict.has_key('follower_id'):
+        if not context.has_key('user'):
+            raise logic.NotAuthorized
+        userobj = model.User.get(context['user'])
+        if not userobj:
+            raise logic.NotAuthorized
+        follower_dict['follower_id'] = userobj.id
+        follower_dict['follower_type'] = 'user'
+
     check_access('follower_create', context, follower_dict)
 
     data, errors = validate(follower_dict, schema, context)

diff --git a/ckan/public/scripts/application.js b/ckan/public/scripts/application.js
@@ -40,6 +40,11 @@ CKAN.Utils = CKAN.Utils || {};
       CKAN.Utils.setupNotesExtract();
     }
 
+    var isUserView = $('body.user.read').length > 0;
+    if (isUserView) {
+      CKAN.Utils.setupUserFollowButton();
+    }
+
     var isResourceView = $('body.package.resource_read').length > 0;
     if (isResourceView) {
       CKAN.DataPreview.loadPreviewDialog(preload_resource);
@@ -1237,6 +1242,25 @@ CKAN.Utils = function($, my) {
     });
     return count;
   };
+
+  my.setupUserFollowButton = function() {
+    var select = $('button.user-follow');
+    $('button.user-follow').click(function(e) {
+      $.ajax({
+        contentType: 'application/json',
+        url: '/api/action/follower_create',
+        data: JSON.stringify({
+               followee_id: this.attributes.userid.nodeValue,
+               followee_type: 'user',
+        }),
+        dataType: 'json',
+        processData: false,
+        type: 'POST',
+      });
+      return false;
+    });
+  };
+
   return my;
 }(jQuery, CKAN.Utils || {});
 

diff --git a/ckan/templates/user/layout.html b/ckan/templates/user/layout.html
@@ -20,6 +20,12 @@
           <li class="${'active' if c.action=='login' else ''}"><a href="${h.url_for(controller='user', action='login')}">Login</a></li>
           <li class="${'active' if c.action=='register' else ''}"><a href="${h.url_for(controller='user', action='register')}">Register Account</a></li>
         </py:if>
+
+        <li>
+          <button userid="${c.user_dict.id}" class="btn user-follow">
+            Follow
+          </button>
+        </li>
       </py:otherwise>
     </ul>
   </py:match>