8d7053fc5c
callback to provide a RegexpField class. * Added checkbox for submitter contact information being the same as IETF contact information; with javascript support and validation support. * Cleaned out the old split_form() and mk_formatting_form() functions from ietf.utils. - Legacy-Id: 138
86 lines
2.9 KiB
Python
86 lines
2.9 KiB
Python
from listop import orl, flattenl
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from log import log
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from django.utils.html import escape
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# look at snippets 59, 148, 99 for newforms helpers
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# Caching accessor for the reverse of a ForeignKey relatinoship
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# Started by axiak on #django
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class FKAsOneToOne(object):
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def __init__(self, field, reverse = False, query = None):
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self.field = field
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self.reverse = reverse
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self.query = query
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def __get_attr(self, instance):
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if self.reverse:
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field_name = '%s_set' % self.field
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else:
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field_name = self.field
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return getattr(instance, field_name)
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def __get__(self, instance, Model):
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if not hasattr(instance, '_field_values'):
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instance._field_values = {}
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try:
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return instance._field_values[self.field]
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except KeyError:
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pass
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if self.reverse:
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value_set = self.__get_attr(instance).all()
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if self.query:
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value_set = value_set.filter(self.query)
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try:
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instance._field_values[self.field] = value_set[0]
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except IndexError:
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instance._field_values[self.field] = None
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else:
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instance._field_values[self.field] = self.__get_attr(instance)
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return instance._field_values[self.field]
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def __set__(self, instance, value):
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if self.reverse:
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# this is dangerous
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#other_instance = self.__get_attr(instance).all()[0]
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#setattr(other_instance, self.field, value)
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#other_instance.save()
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raise NotImplemented
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else:
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setattr(instance, self.field, value)
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def makeFormattingForm(template=None):
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"""Create a form class which formats its fields using the provided template
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The template is provided with a dictionary containing the following keys, value
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pairs:
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"label": field label, if any,
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"errors": list of errors, if any,
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"field": widget rendering for an unbound form / field value for a bound form,
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"help_text": field help text, if any
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"""
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from django.template import loader
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import django.newforms as forms
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class FormattingForm(forms.BaseForm):
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_template = template
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def __getitem__(self, name):
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"Returns a BoundField with the given name."
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#syslog.syslog("FormattingForm.__getitem__(%s)" % (name, ))
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try:
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field = self.fields[name]
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except KeyError:
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raise KeyError('Key %r not found in Form' % name)
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if not isinstance(field, forms.fields.Field):
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return field
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bf = forms.forms.BoundField(self, field, name)
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errors = [escape(error) for error in bf.errors]
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rendering = loader.render_to_string(self._template, { "errors": errors, "label": bf.label, "text": unicode(bf), "help_text": field.help_text, "field":field })
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return rendering
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return FormattingForm
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