Add jump button, to view product in CORE Office

rattail_demo/web/templates/products/view.mako

@@ -0,0 +1,27 @@
+## -*- coding: utf-8; -*-
+<%inherit file="tailbone:templates/products/view.mako" />
+
+<%def name="object_helpers()">
+  ${parent.object_helpers()}
+  ${self.render_xref_helper()}
+</%def>
+
+<%def name="render_xref_helper()">
+  <div class="object-helper">
+    <h3>Cross-Reference</h3>
+    <div class="object-helper-content">
+      <b-button type="is-primary"
+                % if core_office_url:
+                tag="a" href="${core_office_url}" target="_blank"
+                % else:
+                disabled title="${core_office_why_no_url}"
+                % endif
+                >
+        View in CORE Office
+      </b-button>
+    </div>
+  </div>
+</%def>
+
+
+${parent.body()}

rattail_demo/web/views/products.py

@@ -1,9 +1,9 @@
-# -*- coding: utf-8 -*-
+# -*- coding: utf-8; -*-
 """
 Product views
 """
 
-from __future__ import unicode_literals, absolute_import
+from rattail_corepos.config import core_office_url
 
 from tailbone.views import products as base
 
@@ -55,6 +55,26 @@ class ProductsView(base.ProductsView):
                 'deleted',
             ]
 
+    def template_kwargs_view(self, **kwargs):
+        """
+        Supplements the default logic as follows:
+
+        Adds the URL for viewing the product within CORE Office, or else the
+        reason for lack of such a URL.
+        """
+        kwargs = super(ProductsView, self).template_kwargs_view(**kwargs)
+        product = kwargs['instance']
+
+        # CORE Office URL
+        kwargs['core_office_url'] = None
+        office_url = core_office_url(self.rattail_config)
+        if not office_url:
+            kwargs['core_office_why_no_url'] = "CORE Office URL is not configured!"
+        else:
+            kwargs['core_office_url'] = '{}/item/ItemEditorPage.php?searchupc={}'.format(office_url, product.item_id)
+
+        return kwargs
+
 
 def includeme(config):