Make the organization_item snippet overridable

ckan/templates/snippets/organization_item.html

@@ -1,20 +1,32 @@
-<section class="group-list module module-narrow module-shallow">
-  <header class="module-heading">
-    {% set url=h.url_for(controller='organization', action='read', id=organization.name) %}
-    {% set truncate=truncate or 0 %}
-    <a class="module-image" href="{{ url }}">
-      <img src="{{ organization.image_display_url or h.url_for_static('/base/images/placeholder-organization.png') }}" alt="{{ organization.name }}" />
-    </a>
-    <h3 class="media-heading"><a href={{ url }}>{{ organization.title or organization.name }}</a></h3>
-    {% if organization.description %}
-      {% if truncate == 0 %}
-        <p>{{ h.markdown_extract(organization.description)|urlize }}</p>
-      {% else %}
-        <p>{{ h.markdown_extract(organization.description, truncate)|urlize }}</p>
-      {% endif %}
-    {% endif %}
-  </header>
-  {% set list_class = "unstyled dataset-list" %}
-  {% set item_class = "dataset-item module-content" %}
-  {% snippet 'snippets/package_list.html', packages=organization.packages, list_class=list_class, item_class=item_class, truncate=120 %}
-</section>
+{% block organization_item %}
+  <section class="group-list module module-narrow module-shallow">
+    {% block organization_item_header %}
+      <header class="module-heading">
+        {% set url=h.url_for(controller='organization', action='read', id=organization.name) %}
+        {% set truncate=truncate or 0 %}
+        {% block organization_item_header_image %}
+        <a class="module-image" href="{{ url }}">
+          <img src="{{ organization.image_display_url or h.url_for_static('/base/images/placeholder-organization.png') }}" alt="{{ organization.name }}" />
+        </a>
+        {% endblock %}
+        {% block organization_item_header_title %}
+          <h3 class="media-heading"><a href={{ url }}>{{ organization.title or organization.name }}</a></h3>
+        {% endblock %}
+        {% block organization_item_header_description %}
+          {% if organization.description %}
+            {% if truncate == 0 %}
+              <p>{{ h.markdown_extract(organization.description)|urlize }}</p>
+            {% else %}
+              <p>{{ h.markdown_extract(organization.description, truncate)|urlize }}</p>
+            {% endif %}
+          {% endif %}
+        {% endblock %}
+      </header>
+    {% endblock %}
+    {% block organization_item_content %}
+      {% set list_class = "unstyled dataset-list" %}
+      {% set item_class = "dataset-item module-content" %}
+      {% snippet 'snippets/package_list.html', packages=organization.packages, list_class=list_class, item_class=item_class, truncate=120 %}
+    {% endblock %}
+  </section>
+{% endblock %}