101 lines
3.1 KiB
Python
101 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
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################################################################################
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#
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# Rattail -- Retail Software Framework
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# Copyright © 2010-2017 Lance Edgar
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#
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# This file is part of Rattail.
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#
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# Rattail is free software: you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation, either version 3 of the License, or (at your option) any later
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# version.
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#
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# Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# Rattail. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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"""
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Core Field Renderers
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"""
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from __future__ import unicode_literals, absolute_import
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import datetime
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import formalchemy as fa
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from formalchemy.fields import AbstractField
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from pyramid.renderers import render
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class CustomFieldRenderer(fa.FieldRenderer):
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"""
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Base class for renderers which accept customization args, and "fake out"
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FormAlchemy by pretending to still be a renderer factory when in fact it's
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already dealing with a renderer instance.
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"""
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def __init__(self, *args, **kwargs):
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if len(args) == 1 and isinstance(args[0], AbstractField):
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super(CustomFieldRenderer, self).__init__(args[0])
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self.init(**kwargs)
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else:
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assert len(args) == 0
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self.init(**kwargs)
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def __call__(self, field):
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super(CustomFieldRenderer, self).__init__(field)
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return self
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def init(self, **kwargs):
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pass
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@property
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def rattail_config(self):
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return self.request.rattail_config
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class DateFieldRenderer(CustomFieldRenderer, fa.DateFieldRenderer):
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"""
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Date field renderer which uses jQuery UI datepicker widget when rendering
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in edit mode.
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"""
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date_format = '%Y-%m-%d'
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change_year = False
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def init(self, date_format=None, change_year=False):
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if date_format:
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self.date_format = date_format
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self.change_year = change_year
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def render_readonly(self, **kwargs):
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value = self.raw_value
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if value is None:
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return ''
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return value.strftime(self.date_format)
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def render(self, **kwargs):
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kwargs['name'] = self.name
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kwargs['value'] = self.value
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kwargs['change_year'] = self.change_year
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return render('/forms/fields/date.mako', kwargs)
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def deserialize(self):
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value = self._serialized_value()
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if not value:
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return None
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try:
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return datetime.datetime.strptime(value, '%Y-%m-%d')
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except ValueError:
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raise fa.ValidationError("Date value must be in YYYY-MM-DD format")
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except Exception as error:
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raise fa.ValidationError(unicode(error))
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def _serialized_value(self):
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return self.params.getone(self.name)
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