Reverb_Opencart_Extension/install.xml

<?xml version="1.0" encoding="utf-8"?>
<modification>
    <name>Reverb Integration</name>
    <code>reverb</code>
    <version>1.0.3</version>
    <author>Reverb OpenCart</author>
    <link>https://reverb.com/au/page/integrations</link>

    <!--
        ========================================================================
        FILE: admin/view/template/catalog/product.twig
        Injects a Reverb tab into the product edit page.

        Tab content is loaded via AJAX from extension/module/reverb/productTab
        so no PHP controller patching is required. Saving is handled by the
        OC event hooks registered in the module install() method.

        error="skip" on each operation means a single search miss will not
        abort the other operation.
        ========================================================================
    -->
    <file path="admin/view/template/catalog/product.twig">

        <!-- Tab nav item — inserted after the SEO tab -->
        <operation error="skip">
            <search><![CDATA[<li><a href="#tab-seo" data-toggle="tab">{{ tab_seo }}</a></li>]]></search>
            <add position="after"><![CDATA[<li><a href="#tab-reverb" data-toggle="tab">Reverb</a></li>]]></add>
        </operation>

        <!-- Tab pane placeholder + AJAX loader — inserted before the SEO pane -->
        <operation error="skip">
            <search><![CDATA[<div class="tab-pane" id="tab-seo">]]></search>
            <add position="before"><![CDATA[
<div class="tab-pane" id="tab-reverb">
  <div id="reverb-tab-content" style="padding:20px;">
    <i class="fa fa-spinner fa-spin"></i> Loading&hellip;
  </div>
</div>
<script>
(function () {
  $(document).ready(function () {
    var p  = new URLSearchParams(window.location.search);
    var url = 'index.php?route=extension/module/reverb/productTab'
            + '&user_token=' + encodeURIComponent(p.get('user_token') || '')
            + '&product_id=' + encodeURIComponent(p.get('product_id') || 0);
    $.get(url).done(function (html) {
      $('#reverb-tab-content').html(html);
    }).fail(function () {
      $('#reverb-tab-content').html('<p class="text-danger"><i class="fa fa-exclamation-circle"></i> Could not load Reverb tab. Check that the Reverb module is installed correctly.</p>');
    });
  });
}());
</script>
]]></add>
        </operation>

    </file>

</modification>