Refactor how batch editing is done; don't include rows for that sometimes

Various other fixes also..for sake of new purchase batches

tailbone/views/purchases/batch.py

@@ -51,6 +51,7 @@ class PurchaseBatchView(BatchMasterView):
     url_prefix = '/purchases/batches'
     rows_creatable = True
     rows_editable = True
+    edit_with_rows = False
 
     def _preconfigure_grid(self, g):
         super(PurchaseBatchView, self)._preconfigure_grid(g)
@@ -65,6 +66,10 @@ class PurchaseBatchView(BatchMasterView):
                                            default_active=True, default_verb='contains')
         g.sorters['buyer'] = g.make_sorter(model.Person.display_name)
 
+        if self.request.has_perm('purchases.batch.execute'):
+            g.filters['complete'].default_active = True
+            g.filters['complete'].default_verb = 'is_true'
+
         g.date_ordered.set(label="Ordered")
 
     def configure_grid(self, g):
@@ -82,26 +87,31 @@ class PurchaseBatchView(BatchMasterView):
 
     def _preconfigure_fieldset(self, fs):
         super(PurchaseBatchView, self)._preconfigure_fieldset(fs)
+        fs.vendor.set(renderer=forms.renderers.VendorFieldRenderer)
+        fs.buyer.set(renderer=forms.renderers.EmployeeFieldRenderer)
         fs.po_number.set(label="PO Number")
-        fs.po_total.set(label="PO Total")
+        fs.po_total.set(label="PO Total", readonly=True)
 
     def configure_fieldset(self, fs):
         fs.configure(
             include=[
+                fs.id,
                 fs.store,
-                fs.vendor.with_renderer(forms.renderers.VendorFieldRenderer),
-                fs.buyer.with_renderer(forms.renderers.EmployeeFieldRenderer),
+                fs.vendor,
+                fs.buyer,
                 fs.date_ordered,
                 fs.po_number,
                 fs.po_total,
                 fs.created,
                 fs.created_by,
+                fs.complete,
                 fs.executed,
                 fs.executed_by,
             ])
 
         if self.creating:
             del fs.po_total
+            del fs.complete
 
             # default store may be configured
             store = self.rattail_config.get('rattail', 'store')
@@ -119,6 +129,10 @@ class PurchaseBatchView(BatchMasterView):
             # default order date is today
             fs.model.date_ordered = localtime(self.rattail_config).date()
 
+        elif self.editing:
+            fs.store.set(readonly=True)
+            fs.vendor.set(readonly=True)
+
     def template_kwargs_view(self, **kwargs):
         kwargs = super(PurchaseBatchView, self).template_kwargs_view(**kwargs)
         vendor = kwargs['batch'].vendor