FEATURE: Actually show more notifications

The "Show more notifications..." link in the notifications dropdown now
links to /my/notifications, which is a historical view of all
notifications you have recieved.

Notification history is loaded in blocks of 60 at a time.

Admins can see others' notification history. (This was requested for
'debugging purposes', though that's what impersonation is for, IMO.)

app/assets/javascripts/discourse/controllers/header.js.es6

@@ -45,12 +45,16 @@ export default DiscourseController.extend({
     if (self.get("loadingNotifications")) { return; }
 
     self.set("loadingNotifications", true);
-    Discourse.ajax("/notifications").then(function(result) {
+    Discourse.NotificationContainer.loadRecent().then(function(result) {
       self.setProperties({
         'currentUser.unread_notifications': 0,
         notifications: result
       });
-    }).finally(function(){
+    }).catch(function() {
+      self.setProperties({
+        notifications: null
+      });
+    }).finally(function() {
       self.set("loadingNotifications", false);
     });
   },

app/assets/javascripts/discourse/controllers/user-notifications.js.es6

@@ -0,0 +1,27 @@
+
+export default Ember.ArrayController.extend({
+  canLoadMore: true,
+  loading: false,
+
+  actions: {
+    loadMore: function() {
+      if (this.get('canLoadMore') && !this.get('loading')) {
+        this.set('loading', true);
+        var self = this;
+        Discourse.NotificationContainer.loadHistory(
+            self.get('model.lastObject.created_at'),
+            self.get('user.username')).then(function(result) {
+          self.set('loading', false);
+          self.pushObjects(result);
+          // Stop trying if it's the end
+          if (result.length === 0) {
+            self.set('canLoadMore', false);
+          }
+        }).catch(function(error) {
+          self.set('loading', false);
+          Em.Logger.error(error);
+        });
+      }
+    }
+  }
+});

app/assets/javascripts/discourse/controllers/user.js.es6

@@ -20,6 +20,8 @@ export default ObjectController.extend({
     return this.get('viewingSelf') || Discourse.User.currentProp('admin');
   }.property('viewingSelf'),
 
+  canSeeNotificationHistory: Em.computed.alias('canSeePrivateMessages'),
+
   showBadges: function() {
     return Discourse.SiteSettings.enable_badges && (this.get('content.badge_count') > 0);
   }.property('content.badge_count'),

app/assets/javascripts/discourse/models/notification.js

@@ -0,0 +1,48 @@
+Discourse.NotificationContainer = Ember.ArrayProxy.extend({
+
+});
+
+Discourse.NotificationContainer.reopenClass({
+
+  createFromJson: function(json_array) {
+    return Discourse.NotificationContainer.create({content: json_array});
+  },
+
+  createFromError: function(error) {
+    return Discourse.NotificationContainer.create({
+      content: [],
+      error: true,
+      forbidden: error.status === 403
+    });
+  },
+
+  loadRecent: function() {
+    return Discourse.ajax('/notifications').then(function(result) {
+      return Discourse.NotificationContainer.createFromJson(result);
+    }).catch(function(error) {
+      // HeaderController can't handle it properly
+      throw error;
+    });
+  },
+
+  loadHistory: function(beforeDate, username) {
+    var url = '/notifications/history.json',
+        params = [
+          beforeDate ? ('before=' + beforeDate) : null,
+          username ? ('user=' + username) : null
+        ];
+
+    // Remove nulls
+    params = params.filter(function(param) { return !!param; });
+    // Build URL
+    params.forEach(function(param, idx) {
+      url = url + (idx === 0 ? '?' : '&') + param;
+    });
+
+    return Discourse.ajax(url).then(function(result) {
+      return Discourse.NotificationContainer.createFromJson(result);
+    }).catch(function(error) {
+      return Discourse.NotificationContainer.createFromError(error);
+    });
+  }
+});

app/assets/javascripts/discourse/routes/application_routes.js

@@ -69,6 +69,7 @@ Discourse.Route.buildRoutes(function() {
     });
 
     this.route('badges');
+    this.route('notifications');
     this.route('flaggedPosts', { path: '/flagged-posts' });
     this.route('deletedPosts', { path: '/deleted-posts' });
 

app/assets/javascripts/discourse/routes/user-notifications.js.es6

@@ -0,0 +1,19 @@
+export default Discourse.Route.extend({
+  model: function() {
+    var user = this.modelFor('user');
+    return Discourse.NotificationContainer.loadHistory(undefined, user.get('username'));
+  },
+
+  setupController: function(controller, model) {
+    this.controllerFor('user').set('indexStream', false);
+    if (this.controllerFor('user_activity').get('content')) {
+      this.controllerFor('user_activity').set('userActionType', -1);
+    }
+    controller.set('model', model);
+    controller.set('user', this.modelFor('user'));
+  },
+
+  renderTemplate: function() {
+    this.render('user-notification-history', {into: 'user', outlet: 'userOutlet'});
+  }
+});

app/assets/javascripts/discourse/templates/notifications.js.handlebars

@@ -6,11 +6,15 @@
           {{notification-item notification=this scope=scope}}
         {{/each}}
         <li class="read last">
-          <a {{bind-attr href="currentUser.path"}}>{{i18n notifications.more}} &hellip;</a>
+          <a href="/my/notifications">{{i18n notifications.more}}&hellip;</a>
         </li>
       </ul>
     {{else}}
-      <div class="none">{{i18n notifications.none}}</div>
+      {{#if error}}
+        <div class="none error">{{i18n notifications.none}}</div>
+      {{else}}
+        <div class="none">{{i18n notifications.none}}</div>
+      {{/if}}
     {{/if}}
   {{else}}
     <div class='loading'><i class='fa fa-spinner fa-spin'></i></div>

app/assets/javascripts/discourse/templates/user/notifications.js.handlebars

@@ -0,0 +1,24 @@
+{{#if model.error}}
+  <div class="item error">
+    {{#if model.forbidden}}
+      {{i18n errors.reasons.forbidden}}
+    {{else}}
+      {{i18n errors.desc.unknown}}
+    {{/if}}
+  </div>
+{{/if}}
+
+{{#each itemController="notification"}}
+  <div {{bind-attr class=":item :notification read::unread"}}>
+    {{notification-item notification=this scope=scope}}
+    <span class="time">
+      {{date path="created_at" leaveAgo="true"}}
+    </span>
+  </div>
+{{/each}}
+{{#if loading}}
+  <div class='spinner'>{{i18n loading}}</div>
+{{/if}}
+{{#unless canLoadMore}}
+  <div class='end-of-stream'></div>
+{{/unless}}

app/assets/javascripts/discourse/templates/user/user.js.handlebars

@@ -23,6 +23,16 @@
             {{/link-to}}
           {{/link-to}}
         {{/if}}
+        {{#if canSeeNotificationHistory}}
+          {{#link-to 'user.notifications' tagName="li"}}
+            {{#link-to 'user.notifications'}}
+              <i class='glyph fa fa-comment'></i>
+              {{i18n user.notification_history}}
+              <span class='count'>({{unread_notification_count}})</span>
+              <span class='fa fa-chevron-right'></span>
+            {{/link-to}}
+          {{/link-to}}
+        {{/if}}
       </ul>
 
       {{#if canSeePrivateMessages}}

app/assets/javascripts/discourse/views/user-notification-history.js.es6

@@ -0,0 +1,5 @@
+export default Ember.View.extend(Discourse.LoadMore, {
+  eyelineSelector: '.user-stream .notification',
+  classNames: ['user-stream', 'notification-history'],
+  templateName: 'user/notifications'
+});

app/assets/stylesheets/common/base/user.scss

@@ -15,6 +15,11 @@
   }
 }
 
+.end-of-stream {
+  border: 3px solid $primary;
+  width: 100%;
+}
+
 .user-navigation {
 
     .map {

app/assets/stylesheets/desktop/user.scss

@@ -367,6 +367,30 @@
       float: right;
       margin-top: -4px;
     }
+    .notification {
+      &.unread {
+        background-color: dark-light-diff($tertiary, $secondary, 90%, -60%);
+      }
+
+      li { display: inline-block; }
+      p {
+        display: inline-block;
+        margin-left: 10px;
+        span {
+          color: $primary;
+        }
+      }
+      .time {
+        display: inline-block;
+        margin-left: 10px;
+        float: none;
+      }
+      // common/base/header.scss
+      .fa, .icon {
+        color: scale-color($primary, $lightness: 50%);
+        font-size: 24px;
+      }
+    }
   }
 
   .staff-counters {

app/assets/stylesheets/mobile/user.scss

@@ -284,6 +284,26 @@
       float: right !important;
       margin-top: -8px;
     }
+    .notification {
+      padding: 0 8px;
+      li { display: inline-block; }
+      p {
+        display: inline-block;
+        margin: 7px;
+        span {
+          color: $primary;
+        }
+      }
+      .time {
+        display: inline-block;
+        margin: 0;
+        float: none;
+      }
+      // common/base/header.scss
+      .fa, .icon {
+        color: scale-color($primary, $lightness: 50%);
+      }
+    }
   }
 
   .staff-counters {

app/controllers/notifications_controller.rb

@@ -2,7 +2,7 @@ class NotificationsController < ApplicationController
 
   before_filter :ensure_logged_in
 
-  def index
+  def recent
     notifications = Notification.recent_report(current_user, 10)
 
     if notifications.present?
@@ -16,4 +16,25 @@ def index
     render_serialized(notifications, NotificationSerializer)
   end
 
+  def history
+    params.permit(:before, :user)
+    params[:before] ||= 1.day.from_now
+
+    user = current_user
+    if params[:user]
+      user = User.find_by_username(params[:user].to_s)
+    end
+
+    unless guardian.can_see_notifications?(user)
+      return render json: {errors: [I18n.t('js.errors.reasons.forbidden')]}, status: 403
+    end
+
+    notifications = Notification.where(user_id: user.id)
+        .includes(:topic)
+        .limit(60)
+        .where('created_at < ?', params[:before])
+        .order(created_at: :desc)
+
+    render_serialized(notifications, NotificationSerializer)
+  end
 end

app/serializers/user_serializer.rb

@@ -43,6 +43,7 @@ def self.private_attributes(*attrs)
              :suspended_till,
              :uploaded_avatar_id,
              :badge_count,
+             :unread_notification_count,
              :has_title_badges,
              :edit_history_public,
              :custom_fields
@@ -76,6 +77,7 @@ def self.private_attributes(*attrs)
                      :tracked_category_ids,
                      :watched_category_ids,
                      :private_messages_stats,
+                     :unread_notification_count,
                      :disable_jump_reply,
                      :gravatar_avatar_upload_id,
                      :custom_avatar_upload_id,
@@ -242,6 +244,10 @@ def has_title_badges
     object.badges.where(allow_title: true).count > 0
   end
 
+  def unread_notification_count
+    Notification.where(user_id: object.id, read: false).count
+  end
+
   def include_edit_history_public?
     can_edit && !SiteSetting.edit_history_visible_to_public
   end

config/locales/client.en.yml

@@ -306,6 +306,7 @@ en:
       invited_by: "Invited By"
       trust_level: "Trust Level"
       notifications: "Notifications"
+      notification_history: "Notification History"
       disable_jump_reply: "Don't jump to your new post after replying"
       dynamic_favicon: "Show incoming message notifications on favicon (experimental)"
       edit_history_public: "Let other users view my post revisions"
@@ -520,6 +521,7 @@ en:
         network: "Please check your connection."
         network_fixed: "Looks like it's back."
         server: "Error code: {{status}}"
+        forbidden: "You're not allowed to view that."
         unknown: "Something went wrong."
       buttons:
         back: "Go Back"

config/routes.rb

@@ -232,6 +232,7 @@
   get "users/:username/activity" => "users#show", constraints: {username: USERNAME_ROUTE_FORMAT}
   get "users/:username/activity/:filter" => "users#show", constraints: {username: USERNAME_ROUTE_FORMAT}
   get "users/:username/badges" => "users#show", constraints: {username: USERNAME_ROUTE_FORMAT}
+  get "users/:username/notifications" => "users#show", constraints: {username: USERNAME_ROUTE_FORMAT}
   delete "users/:username" => "users#destroy", constraints: {username: USERNAME_ROUTE_FORMAT}
   get "users/by-external/:external_id" => "users#show"
   get "users/:username/flagged-posts" => "users#show", constraints: {username: USERNAME_ROUTE_FORMAT}
@@ -270,7 +271,8 @@
     end
   end
 
-  resources :notifications
+  get "notifications" => "notifications#recent"
+  get "notifications/history" => "notifications#history"
 
   match "/auth/:provider/callback", to: "users/omniauth_callbacks#complete", via: [:get, :post]
   match "/auth/failure", to: "users/omniauth_callbacks#failure", via: [:get, :post]

lib/guardian/user_guardian.rb

@@ -26,6 +26,10 @@ def can_edit_name?(user)
     can_edit?(user)
   end
 
+  def can_see_notifications?(user)
+    is_me?(user) || is_admin?
+  end
+
   def can_block_user?(user)
     user && is_staff? && not(user.staff?)
   end