Move the useful formfield tools out into a app to reuse elsewhere

app/formtools/templates/formtools/formfield.html

@@ -0,0 +1,12 @@
+{% load add_class %}
+
+<div class="clearfix">
+  {{ field.label_tag }}
+  <div class="input">
+    {% if class %}{{ field|add_class:class }}{% else %}{{ field }}{% endif %}
+    {% if field.help_text %}
+    <span class="help-block">{{ field.help_text }}</span>
+    {% endif %}
+  </div>
+</div>
+

app/formtools/templatetags/add_class.py

@@ -0,0 +1,21 @@
+import re
+from django.utils.safestring import mark_safe
+from django import template
+register = template.Library()
+
+class_re = re.compile(r'(?<=class=["\'])(.*)(?=["\'])')
+@register.filter
+def add_class(value, css_class):
+    string = unicode(value)
+    match = class_re.search(string)
+    if match:
+        m = re.search(r'^%s$|^%s\s|\s%s\s|\s%s$' % (css_class, css_class, 
+                                                    css_class, css_class), 
+                      match.group(1))
+        print match.group(1)
+        if not m:
+            return mark_safe(class_re.sub(match.group(1) + " " + css_class, 
+                                          string))
+    else:
+        return mark_safe(string.replace('>', ' class="%s">' % css_class))
+    return value