Add MasterView.has_rows concept and related logic

Now the `BatchMasterView` no longer provides most of these goodies.

Also tweak some custom batch views to reflect changes etc.

tailbone/templates/master/edit_row.mako

@@ -0,0 +1,17 @@
+## -*- coding: utf-8 -*-
+<%inherit file="/master/edit.mako" />
+
+<%def name="context_menu_items()">
+  <li>${h.link_to("Back to {}".format(model_title), index_url)}</li>
+  % if master.rows_viewable and request.has_perm('{}.view'.format(row_permission_prefix)):
+      <li>${h.link_to("View this {}".format(row_model_title), row_action_url('view', instance))}</li>
+  % endif
+  % if master.rows_deletable and instance_deletable and request.has_perm('{}.delete'.format(row_permission_prefix)):
+      <li>${h.link_to("Delete this {}".format(row_model_title), row_action_url('delete', instance))}</li>
+  % endif
+  % if master.rows_creatable and request.has_perm('{}.create'.format(row_permission_prefix)):
+      <li>${h.link_to("Create a new {}".format(row_model_title), url('{}.create'.format(row_route_prefix)))}</li>
+  % endif
+</%def>
+
+${parent.body()}

tailbone/templates/master/view_row.mako

@@ -4,7 +4,7 @@
 <%def name="title()">${model_title}</%def>
 
 <%def name="context_menu_items()">
-  <li>${h.link_to("Back to {}".format(batch_model_title), index_url)}</li>
+  <li>${h.link_to("Back to {}".format(parent_model_title), index_url)}</li>
   % if master.rows_editable and instance_editable and request.has_perm('{}.edit'.format(permission_prefix)):
       <li>${h.link_to("Edit this {}".format(model_title), action_url('edit', instance))}</li>
   % endif
@@ -16,4 +16,10 @@
   % endif
 </%def>
 
-${parent.body()}
+<ul id="context-menu">
+  ${self.context_menu_items()}
+</ul>
+
+<div class="form-wrapper">
+  ${form.render()|n}
+</div><!-- form-wrapper -->

tailbone/templates/themes/better/base.mako

@@ -42,7 +42,7 @@
               % if master.listing:
                   <span class="global">${model_title_plural}</span>
               % else:
-                  ${h.link_to(model_title_plural, index_url, class_='global')}
+                  ${h.link_to(index_title, index_url, class_='global')}
                   % if master.viewing and grid_index:
                       ${grid_index_nav()}
                   % endif