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plainform.py
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plainform.py
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#!/usr/bin/python
#
# This file is part of PlainForm
# Copyright © 2015 Guillaume Ayoub
#
# BSD-Licensed
"""
PlainForm
=========
Formidable forms formed with WTForms.
"""
from wtforms.i18n import messages_path
from wtforms.form import Form
from wtforms.fields import (
Field, BooleanField, FileField, RadioField, SelectField,
SelectMultipleField, SubmitField, StringField, HiddenField,
PasswordField, TextAreaField)
from wtforms.fields.html5 import (
SearchField, TelField, URLField, EmailField, DateField,
DateTimeLocalField, IntegerField, DecimalField, IntegerRangeField,
DecimalRangeField)
from wtforms.widgets.html5 import ColorInput
from wtforms.widgets.core import html_params, HTMLString
__version__ = '0.10.0'
class Translations:
def __init__(self, get_locales):
self.get_locales = get_locales
def _get_translations(self):
from babel import support
return support.Translations.load(
messages_path(), self.get_locales(), domain='wtforms')
def gettext(self, string):
translation = self._get_translations()
if translation is None:
return string
return translation.gettext(string)
def ngettext(self, singular, plural, n):
translation = self._get_translations()
if translation is None:
if n == 1:
return singular
return plural
return translation.ngettext(singular, plural, n)
class Form(Form):
def __init__(self, formdata=None, obj=None, prefix='', data=None,
meta=None, attributes=None, **kwargs):
self.attributes = attributes or {}
if 'method' not in self.attributes:
self.attributes['method'] = 'POST'
super().__init__(formdata, obj, prefix, meta, **kwargs)
def __call__(self):
if 'enctype' not in self.attributes:
for field in self:
if isinstance(field, FileField):
self.attributes['enctype'] = 'multipart/form-data'
break
return HTMLString('<form {}>\n{}\n</form>'.format(
html_params(**self.attributes), '\n'.join(field() for field in self)))
def _get_translations(self):
return None
class Field(Field):
def __init__(self, label=None, validators=None, filters=(), description='',
id=None, default=None, widget=None, render_kw=None,
_form=None, _name=None, _prefix='', _translations=None,
_meta=None, **kwargs):
self.kwargs = kwargs
super().__init__(
label, validators, filters, description, id, default, widget,
render_kw, _form, _name, _prefix, _translations, _meta)
def __call__(self, **kwargs):
kwargs.update(self.kwargs)
for flag in dir(self.flags):
if not flag.startswith('_'):
kwargs[flag] = getattr(self.flags, flag)
return self._render(**kwargs)
def _update_kwargs(self, **kwargs):
if self.errors:
kwargs['data-error'] = 'error'
label_kwargs = (
{'data-required': kwargs['required']}
if 'required' in kwargs else {})
return kwargs, label_kwargs
def _render(self, **kwargs):
widget_kwargs, label_kwargs = self._update_kwargs(**kwargs)
return HTMLString(
'{}\n{}\n{}'.format(
self.label(**label_kwargs), self.widget(self, **widget_kwargs),
self.error_messages))
@property
def error_messages(self):
if self.errors:
return '<span data-error="error">{}</span>'.format(', '.join(self.errors))
else:
return ''
class BooleanField(BooleanField, Field):
def __call__(self, **kwargs):
kwargs.update(self.kwargs)
return self._render(**kwargs)
def _render(self, **kwargs):
widget_kwargs, label_kwargs = self._update_kwargs(**kwargs)
return HTMLString(
'{}\n{}\n{}'.format(
self.widget(self, **widget_kwargs), self.label(**label_kwargs),
self.error_messages))
class FileField(FileField, Field):
pass
class RadioField(RadioField, Field):
def __call__(self, **kwargs):
kwargs.update(self.kwargs)
return self._render(**kwargs)
def _render(self, **kwargs):
widget_kwargs, label_kwargs = self._update_kwargs(**kwargs)
return HTMLString('<p>{}</p>'.format(self.label.text) + '\n'.join(
'{}\n{}'.format(
field.widget(field, **widget_kwargs),
field.label(**label_kwargs))
for field in self))
class SelectField(SelectField, Field):
pass
class SelectMultipleField(SelectMultipleField, SelectField):
pass
class CheckboxListField(SelectMultipleField):
option_widget = BooleanField.widget
def _render(self, **kwargs):
return RadioField._render(self, **kwargs)
class SubmitField(SubmitField, Field):
def __call__(self, **kwargs):
kwargs.update(self.kwargs)
return self.widget(self, **kwargs)
class ButtonField(SubmitField):
def __call__(self, **kwargs):
kwargs.update(self.kwargs)
return self._render(**kwargs)
def _render(self, **kwargs):
widget_kwargs, label_kwargs = self._update_kwargs(**kwargs)
return HTMLString('<button {}>{}</button>'.format(
html_params(**widget_kwargs), self.label.text))
class StringField(StringField, Field):
pass
class HiddenField(HiddenField, Field):
def __call__(self, **kwargs):
kwargs.update(self.kwargs)
return self.widget(self, **kwargs)
class PasswordField(PasswordField, Field):
pass
class TextAreaField(TextAreaField, Field):
pass
class HTMLField(TextAreaField):
def _render(self, **kwargs):
kwargs['accept'] = 'html'
return super()._render(**kwargs)
class SearchField(SearchField, Field):
pass
class TelField(TelField, Field):
pass
class ColorField(StringField, Field):
widget = ColorInput()
class URLField(URLField, Field):
pass
class EmailField(EmailField, Field):
pass
class DateField(DateField, Field):
pass
class DateTimeLocalField(DateTimeLocalField, Field):
def __init__(self, label=None, validators=None,
format='%Y-%m-%dT%H:%M:%S', **kwargs):
return super().__init__(
label=label, validators=validators, format=format, **kwargs)
class IntegerField(IntegerField, Field):
pass
class DecimalField(DecimalField, Field):
pass
class IntegerRangeField(IntegerRangeField, Field):
pass
class DecimalRangeField(DecimalRangeField, Field):
pass