Move all widgets code to a single module

apps/document_indexing/widgets.py

@@ -22,3 +22,52 @@ def index_instance_item_link(index_instance_item):
         'icon_template': icon_template,
         'text': index_instance_item
     })
+
+
+def get_instance_link(index_instance_node, text=None, simple=False):
+    """
+    Return an HTML anchor to an index instance
+    """
+
+    if simple:
+        # Just display the instance's value or overrided text, no
+        # HTML anchor
+        template = u'%(value)s'
+    else:
+        template = u'<a href="%(url)s">%(value)s</a>'
+
+    return template % {
+        'url': index_instance_node.get_absolute_url(),
+        'value': text if text else (index_instance_node if index_instance_node.parent else index_instance_node.index_template_node.index)
+    }
+
+
+def get_breadcrumbs(index_instance, simple=False, single_link=False, include_count=False):
+    """
+    Return a joined string of HTML anchors to every index instance's
+    parent from the root of the tree to the index instance
+    """
+    result = []
+    if single_link:
+        # Return the entire breadcrumb path as a single HTML anchor
+        simple = True
+
+    #result.append(get_instance_link(index_instance.get_root(), simple=simple))
+
+    for instance in index_instance.get_ancestors():
+        result.append(get_instance_link(instance, simple=simple))
+
+    result.append(get_instance_link(index_instance, simple=simple))
+
+    output = []
+
+    if include_count:
+        output.append(u'(%d)' % index_instance.documents.count())
+
+    if single_link:
+        # Return the entire breadcrumb path as a single HTML anchor
+        output.insert(0, get_instance_link(index_instance_node=index_instance, text=(u' / '.join(result))))
+        return mark_safe(u' '.join(output))
+    else:
+        output.insert(0, u' / '.join(result))
+        return mark_safe(u' '.join(output))