django-orchestra/orchestra/admin/forms.py

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from functools import partial
from django import forms
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from django.contrib.admin import helpers
from django.core import validators
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from django.forms.models import modelformset_factory, BaseModelFormSet
from django.template import Template, Context
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from django.utils.translation import ugettext_lazy as _
from orchestra.forms.widgets import ShowTextWidget, ReadOnlyWidget
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from ..core.validators import validate_password
class AdminFormMixin(object):
""" Provides a method for rendering a form just like in Django Admin """
def as_admin(self):
prepopulated_fields = {}
fieldsets = [
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(None, {'fields': list(self.fields.keys())})
]
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adminform = helpers.AdminForm(self, fieldsets, prepopulated_fields)
template = Template(
'{% for fieldset in adminform %}'
' {% include "admin/includes/fieldset.html" %}'
'{% endfor %}'
)
return template.render(Context({'adminform': adminform}))
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class AdminFormSet(BaseModelFormSet):
def as_admin(self):
prepopulated = {}
fieldsets = [
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(None, {'fields': list(self.form().fields.keys())})
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]
readonly = getattr(self.form.Meta, 'readonly_fields', ())
if not hasattr(self.modeladmin, 'verbose_name_plural'):
opts = self.modeladmin.model._meta
self.modeladmin.verbose_name_plural = opts.verbose_name_plural
inline_admin_formset = helpers.InlineAdminFormSet(self.modeladmin, self,
fieldsets, prepopulated, readonly, model_admin=self.modeladmin)
template = Template(
'{% include "admin/edit_inline/tabular.html" %}'
)
return template.render(Context({'inline_admin_formset': inline_admin_formset}))
def adminmodelformset_factory(modeladmin, form, formset=AdminFormSet, **kwargs):
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formset = modelformset_factory(modeladmin.model, form=form, formset=formset, **kwargs)
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formset.modeladmin = modeladmin
return formset
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class AdminPasswordChangeForm(forms.Form):
"""
A form used to change the password of a user in the admin interface.
"""
error_messages = {
'password_mismatch': _("The two password fields didn't match."),
'password_missing': _("No password has been provided."),
}
required_css_class = 'required'
password1 = forms.CharField(label=_("Password"), widget=forms.PasswordInput,
required=False, validators=[validate_password])
password2 = forms.CharField(label=_("Password (again)"), widget=forms.PasswordInput,
required=False)
def __init__(self, user, *args, **kwargs):
self.related = kwargs.pop('related', [])
self.user = user
super(AdminPasswordChangeForm, self).__init__(*args, **kwargs)
for ix, rel in enumerate(self.related):
self.fields['password1_%i' % ix] = forms.CharField(
label=_("Password"), widget=forms.PasswordInput, required=False)
self.fields['password2_%i' % ix] = forms.CharField(
label=_("Password (again)"), widget=forms.PasswordInput, required=False)
setattr(self, 'clean_password2_%i' % ix, partial(self.clean_password2, ix=ix))
def clean_password2(self, ix=''):
if ix != '':
ix = '_%i' % ix
password1 = self.cleaned_data.get('password1%s' % ix)
password2 = self.cleaned_data.get('password2%s' % ix)
if password1 and password2:
if password1 != password2:
raise forms.ValidationError(
self.error_messages['password_mismatch'],
code='password_mismatch',
)
elif password1 or password2:
raise forms.ValidationError(
self.error_messages['password_mismatch'],
code='password_mismatch',
)
return password2
def clean(self):
cleaned_data = super(AdminPasswordChangeForm, self).clean()
for data in cleaned_data.values():
if data:
return
raise forms.ValidationError(
self.error_messages['password_missing'],
code='password_missing',
)
def save(self, commit=True):
"""
Saves the new password.
"""
password = self.cleaned_data["password1"]
if password:
self.user.set_password(password)
if commit:
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try:
self.user.save(update_fields=['password'])
except ValueError:
# password is not a field but an attribute
self.user.save() # Trigger the backend
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for ix, rel in enumerate(self.related):
password = self.cleaned_data['password1_%s' % ix]
if password:
set_password = getattr(rel, 'set_password')
set_password(password)
if commit:
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rel.save(update_fields=['password'])
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return self.user
def _get_changed_data(self):
data = super(AdminPasswordChangeForm, self).changed_data
for name in self.fields.keys():
if name not in data:
return []
return ['password']
changed_data = property(_get_changed_data)
class SendEmailForm(forms.Form):
email_from = forms.EmailField(label=_("From"),
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widget=forms.TextInput(attrs={'size': '118'}))
to = forms.CharField(label="To", required=False,
widget=ShowTextWidget())
extra_to = forms.CharField(label="To (extra)", required=False,
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widget=forms.TextInput(attrs={'size': '118'}))
subject = forms.CharField(label=_("Subject"),
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widget=forms.TextInput(attrs={'size': '118'}))
message = forms.CharField(label=_("Message"),
widget=forms.Textarea(attrs={'cols': 118, 'rows': 15}))
def __init__(self, *args, **kwargs):
super(SendEmailForm, self).__init__(*args, **kwargs)
initial = kwargs.get('initial')
if 'to' in initial:
self.fields['to'].widget = ReadOnlyWidget(initial['to'])
else:
self.fields.pop('to')
def clean_comma_separated_emails(self, value):
clean_value = []
for email in value.split(','):
email = email.strip()
if email:
try:
validators.validate_email(email)
except validators.ValidationError:
raise validators.ValidationError("Comma separated email addresses.")
clean_value.append(email)
return clean_value
def clean_extra_to(self):
extra_to = self.cleaned_data['extra_to']
return self.clean_comma_separated_emails(extra_to)