Adds Global Announcements to sub accounts

refs PFS-3588

TEST PLAN
* verify Global Announcements can be made from sub account settings page
* admins and users should see on notification what account its from
  (bottom of each notification)
* verify that users receive the correct announcements based on account
  and role
  - sub account notifications should only go to users with an enrollment
    or admin role somewhere within the sub account hierarchy
  - if the sub account notification has specified roles, only users
    with those roles within the sub account hierarchy should see them
* verify Global Announcement permission can be made for sub accounts
* on sub accounts the Add/Edit forms should not display 'Unenrolled
  users' checkbox

Change-Id: I087acba0504a04595244062b8dfc41f340fc2f1a
Reviewed-on: https://gerrit.instructure.com/72343
Reviewed-by: Cody Cutrer <cody@instructure.com>
Tested-by: Jenkins
QA-Review: Jahnavi Yetukuri <jyetukuri@instructure.com>
Product-Review: Allison Weiss <allison@instructure.com>

Author: Tyson Brown

app/controllers/account_notifications_controller.rb

@@ -223,7 +223,6 @@ def create
   #     "end_at": "2014-02-01T00:00:00Z",
   #     "message": "This is a global notification"
   #   }
-
   def update
     account_notification = @account.announcements.find(params[:id])
     if account_notification
@@ -269,12 +268,7 @@ def destroy
 
   protected
   def require_account_admin
-    get_context
-    if !@account || @account.parent_account_id
-      flash[:notice] = t(:permission_denied_notice, "You cannot create announcements for that account")
-      redirect_to account_settings_path(params[:account_id])
-      return false
-    end
+    require_account_context
     return false unless authorized_action(@account, @current_user, :manage_alerts)
   end
 

app/helpers/account_notification_helper.rb

@@ -78,4 +78,12 @@ def accessible_message_icon_text(icon_type)
       I18n.t('#global_message_icons.warning', "warning")
     end
   end
+
+  def roles_message(account)
+    if account.root_account?
+      t "(If none are selected, send to everyone in the entire account)"
+    else
+      t "(If none are selected, send to everyone in the entire sub-account)"
+    end
+  end
 end

app/models/account_notification.rb

@@ -23,7 +23,12 @@ def validate_dates
   end
 
   def self.for_user_and_account(user, account)
-    current = self.for_account(account)
+    if account.site_admin?
+      current = self.for_account(account)
+    else
+      sub_account_ids = UserAccountAssociation.where(user: user).pluck(:account_id)
+      current = self.for_account(account, sub_account_ids)
+    end
 
     user_role_ids = {}
 
@@ -89,16 +94,21 @@ def self.for_user_and_account(user, account)
     current
   end
 
-  def self.for_account(account)
+  def self.for_account(account, sub_account_ids=nil)
     # Refreshes every 10 minutes at the longest
     Rails.cache.fetch(['account_notifications3', account].cache_key, expires_in: 10.minutes) do
       now = Time.now.utc
       # we always check the given account for the flag, even if the announcement is from the site_admin account
       # this allows us to make a global announcement that is filtered to only accounts with this flag
       enabled_flags = ACCOUNT_SERVICE_NOTIFICATION_FLAGS & account.allowed_services_hash.keys.map(&:to_s)
+      account_ids = account.account_chain(include_site_admin: true).map(&:id)
+      if sub_account_ids
+        account_ids += sub_account_ids
+        account_ids.uniq!
+      end
 
-      Shard.partition_by_shard(account.account_chain(include_site_admin: true).reverse) do |accounts|
-        AccountNotification.where("account_id IN (?) AND start_at <? AND end_at>?", accounts, now, now).
+      Shard.partition_by_shard(account_ids) do |a|
+        AccountNotification.where("account_id IN (?) AND start_at <? AND end_at>?", a, now, now).
           where("required_account_service IS NULL OR required_account_service IN (?)", enabled_flags).
           order('start_at DESC').
           preload(:account, account_notification_roles: :role)

app/models/role_override.rb

@@ -604,7 +604,7 @@ def self.enrollment_type_labels
       },
       :manage_alerts => {
         :label => lambda { t('permissions.manage_announcements', "Manage global announcements") },
-        :account_only => :root,
+        :account_only => true,
         :true_for => %w(AccountAdmin),
         :available_to => %w(AccountAdmin AccountMembership),
       },

app/stylesheets/components/_alerts.scss

@@ -330,3 +330,15 @@ $ic-notification-border-thickness: 2px;
   margin-left: $ic-sp;
   margin-bottom: $ic-sp/2;
 }
+
+.notification_account_content {
+  width: 100%;
+  background-color: $ic-color-neutral;
+}
+
+.notification_account_content_text {
+  font-size: 0.8em;
+  font-weight: 300;
+  padding-left: 12px;
+  line-height: 22px;
+}

app/views/accounts/_edit_account_notification.html.erb

@@ -48,7 +48,7 @@
   <div class="ic-Form-control">
     <div class="ic-Label" id="aria-announcements-send-to-group">
       <%= t "Send to" %>
-      <span><%= t "(will send to everyone if no selections are made)" %></span>
+      <%= roles_message(@account) %>
     </div>
     <div class="grid-row">
       <div class="col-xs-12 col-lg-4">
@@ -67,16 +67,18 @@
               </label>
             </div>
           <% end %>
-          <% nil_role_checked = role_ids.include? nil %>
-          <div class="ic-Form-control ic-Form-control--checkbox">
-            <%= check_box_tag "account_notification_roles[]", "NilEnrollment", nil_role_checked, { :class => "account_notification_role_cbx", :id => "account_notification_role_NilEnrollment_cbx_#{announcement.id}" } %>
-            <label class="ic-Label" for="<%= "account_notification_role_NilEnrollment_cbx_#{announcement.id}" %>">
-              <%= t "Unenrolled users" %>
-              <span class="screenreader-only">
-                <%=t "Send this announcement to unenrolled users" %>
-              </span>
-            </label>
-          </div>
+          <% if @account.root_account? %>
+            <% nil_role_checked = role_ids.include? nil %>
+            <div class="ic-Form-control ic-Form-control--checkbox">
+              <%= check_box_tag "account_notification_roles[]", "NilEnrollment", nil_role_checked, { :class => "account_notification_role_cbx", :id => "account_notification_role_NilEnrollment_cbx_#{announcement.id}" } %>
+              <label class="ic-Label" for="<%= "account_notification_role_NilEnrollment_cbx_#{announcement.id}" %>">
+                <%= t "Unenrolled users" %>
+                <span class="screenreader-only">
+                  <%=t "Send this announcement to unenrolled users" %>
+                </span>
+              </label>
+            </div>
+          <% end %>
         </div>
       </div>
       <div class="col-xs-12 col-lg-4">