Add CustomFieldRenderer and DateFieldRenderer.

tailbone/app.py

@@ -130,6 +130,7 @@ def make_pyramid_config(settings):
     # Configure FormAlchemy.
     formalchemy.config.engine = TemplateEngine()
     formalchemy.FieldSet.default_renderers[sa.Boolean] = renderers.YesNoFieldRenderer
+    formalchemy.FieldSet.default_renderers[sa.Date] = renderers.DateFieldRenderer
     formalchemy.FieldSet.default_renderers[GPCType] = renderers.GPCFieldRenderer
 
     return config

tailbone/forms/renderers/__init__.py

@@ -2,7 +2,7 @@
 ################################################################################
 #
 #  Rattail -- Retail Software Framework
-#  Copyright © 2010-2014 Lance Edgar
+#  Copyright © 2010-2015 Lance Edgar
 #
 #  This file is part of Rattail.
 #
@@ -24,6 +24,8 @@
 FormAlchemy Field Renderers
 """
 
+from .core import DateFieldRenderer
+
 from .common import (AutocompleteFieldRenderer,
                      DecimalFieldRenderer, CurrencyFieldRenderer,
                      DateTimeFieldRenderer,

tailbone/forms/renderers/core.py

@@ -0,0 +1,86 @@
+# -*- coding: utf-8 -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2015 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU Affero General Public License as published by the Free
+#  Software Foundation, either version 3 of the License, or (at your option)
+#  any later version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for
+#  more details.
+#
+#  You should have received a copy of the GNU Affero General Public License
+#  along with Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+"""
+Core Field Renderers
+"""
+
+from __future__ import unicode_literals
+
+import datetime
+
+import formalchemy
+from formalchemy.fields import AbstractField
+from pyramid.renderers import render
+
+
+class CustomFieldRenderer(formalchemy.FieldRenderer):
+    """
+    Base class for renderers which accept customization args, and "fake out"
+    FormAlchemy by pretending to still be a renderer factory when in fact it's
+    already dealing with a renderer instance.
+    """
+
+    def __init__(self, *args, **kwargs):
+        if len(args) == 1 and isinstance(args[0], AbstractField):
+            super(CustomFieldRenderer, self).__init__(args[0])
+        else:
+            if args:
+                self.request = args[0]
+            self.init(**kwargs)
+
+    def __call__(self, field):
+        super(CustomFieldRenderer, self).__init__(field)
+        return self
+
+    def init(self, **kwargs):
+        pass
+
+    @property
+    def rattail_config(self):
+        return self.request.rattail_config
+
+
+class DateFieldRenderer(CustomFieldRenderer, formalchemy.DateFieldRenderer):
+    """
+    Date field renderer which uses jQuery UI datepicker widget when rendering
+    in edit mode.
+    """
+    change_year = False
+
+    def init(self, change_year=False):
+        self.change_year = change_year
+
+    def render(self, **kwargs):
+        kwargs['name'] = self.name
+        kwargs['value'] = self.value
+        kwargs['change_year'] = self.change_year
+        return render('/forms/fields/date.mako', kwargs)
+
+    def deserialize(self):
+        value = self._serialized_value()
+        if not value:
+            return None
+        return datetime.datetime.strptime(value, '%Y-%m-%d')
+
+    def _serialized_value(self):
+        return self.params.getone(self.name)

tailbone/templates/forms/fields/date.mako

@@ -0,0 +1,10 @@
+## -*- coding: utf-8 -*-
+${h.text(name, value=value)}
+<script type="text/javascript">
+  $(function() {
+      $('input[name="${name}"]').datepicker({
+          changeYear: ${'true' if change_year else 'false'},
+          dateFormat: 'yy-mm-dd'
+      });
+  });
+</script>