--- a/ckanext/example/package_form.py
+++ b/ckanext/example/package_form.py
@@ -1,1 +1,40 @@
+from sqlalchemy.util import OrderedDict
+from pylons.i18n import _
 
+from ckan.forms import common
+from ckan.forms import package
+
+
+# Setup the fieldset
+def build_example_form(is_admin=False,
+                       user_editable_groups=None,
+                       **kwargs):
+    """Customise the core CKAN dataset editing form by adding a new
+    field "temporal coverage", and changing the layout of the core
+    fields.
+    """
+    # Restrict fields
+    builder = package.build_package_form(
+        user_editable_groups=user_editable_groups)
+
+    # Extra fields
+    builder.add_field(common.DateRangeExtraField('temporal_coverage'))
+
+    # Layout
+    field_groups = OrderedDict([
+        (_('Customised Basic information'), ['title', 'name', 'url',
+                                  'notes', 'tags']),
+        (_('Details'), ['author', 'author_email', 'groups',
+                        'maintainer', 'maintainer_email',
+                        'license_id', 'temporal_coverage' ]),
+        (_('Resources'), ['resources']),
+        ])
+    builder.set_displayed_fields(field_groups)
+    return builder
+
+
+def get_example_fieldset(is_admin=False, user_editable_groups=None, **kwargs):
+    return build_example_form(is_admin=is_admin,
+                              user_editable_groups=user_editable_groups,
+                              **kwargs).get_fieldset()
+