Allows CMS authors to create site-wide banners, to alert visitors of important information regardless of the page they're viewing.

• Themeable templates
• Configure type of alert (defaults to "info", "warning" and "alert")
• Multiple concurrent alerts
• Set start/end dates for alert
• Permission controls
• Localisation of CMS UI controls and labels
• Preview and publish through versioning
• Optional: Rich-text editing (insert links and images)
• Optional: Sorting through gridfieldextensions
• Support for subsites

(SilverStripe 3.x)

CMS editing screen (with versioneddataobjects enabled)

composer require nzta/silverstripe-sitebanner:

Add the following to your YAML config to activate the module:

SilverStripe\SiteConfig\SiteConfig:
  extensions:
    - NZTA\SiteBanner\ExtensionsSiteConfigExtension

The site banner can be configured in admin/settings now.

In order to show the banners, you need to add them to your template:

<% loop $SiteConfig.SiteBanners %>
    <div class="site-banner site-banner-$Type" role="alert">
        $Content
    </div>
<% end_loop %>

If you're using Bootstrap, it's easy to get useful default styles for alerts through a combination of contextual backgrounds and icons.

<% loop $SiteConfig.SiteBanners %>
    <% if $Type == 'info' %>
        <p class="bg-info" role="alert">
            <span class="glyphicon glyphicon-info-sign" aria-hidden="true" />
            $Content
        </p>
    <% end_if %>
    <% if $Type == 'warning' %>
        <p class="bg-warning" role="alert">
            <span class="glyphicon glyphicon-warning-sign" aria-hidden="true" />
            $Content
        </p>
    <% end_if %>
    <% if $Type == 'alert' %>
        <p class="bg-danger" role="alert">
            <span class="glyphicon glyphicon-warning-sign" aria-hidden="true" />
            $Content
        </p>
    <% end_if %>
<% end_loop %>

Examples on the SilverStripe default theme:

By default, every author with access to the "Settings" section (EDIT_SITECONFIG permission code) can set alerts. You can customise this by YAML configuration:

SiteBanner:
  required_permission_codes:
    - ADMIN

You can allow authors to sort multiple alerts by installing the gridfieldextensionsn module. It'll get automatically picked up by the code.

• Does not trigger republish when staticpublisher is used