django-orchestra/orchestra/forms/options.py
2015-04-26 13:53:00 +00:00

92 lines
3.5 KiB
Python

from django import forms
from django.contrib.auth import forms as auth_forms
from django.utils.translation import ugettext_lazy as _
from orchestra.utils.python import random_ascii
from ..core.validators import validate_password
from .fields import SpanField
from .widgets import SpanWidget
class UserCreationForm(forms.ModelForm):
"""
A form that creates a user, with no privileges, from the given username and
password.
"""
error_messages = {
'password_mismatch': _("The two password fields didn't match."),
'duplicate_username': _("A user with that username already exists."),
}
password1 = forms.CharField(label=_("Password"),
widget=forms.PasswordInput, validators=[validate_password])
password2 = forms.CharField(label=_("Password confirmation"),
widget=forms.PasswordInput,
help_text=_("Enter the same password as above, for verification."))
def __init__(self, *args, **kwargs):
super(UserCreationForm, self).__init__(*args, **kwargs)
self.fields['password1'].help_text = _("Suggestion: %s") % random_ascii(10)
def clean_password2(self):
password1 = self.cleaned_data.get('password1')
password2 = self.cleaned_data.get('password2')
if password1 and password2 and password1 != password2:
raise forms.ValidationError(
self.error_messages['password_mismatch'],
code='password_mismatch',
)
return password2
def clean_username(self):
# Since model.clean() will check this, this is redundant,
# but it sets a nicer error message than the ORM and avoids conflicts with contrib.auth
username = self.cleaned_data["username"]
try:
self._meta.model._default_manager.get(username=username)
except self._meta.model.DoesNotExist:
return username
raise forms.ValidationError(self.error_messages['duplicate_username'])
def save(self, commit=True):
user = super(UserCreationForm, self).save(commit=False)
user.set_password(self.cleaned_data['password1'])
if commit:
user.save()
return user
class UserChangeForm(forms.ModelForm):
password = auth_forms.ReadOnlyPasswordHashField(label=_("Password"),
help_text=_("Raw passwords are not stored, so there is no way to see "
"this user's password, but you can change the password "
"using <a href=\"password/\">this form</a>."))
def clean_password(self):
# Regardless of what the user provides, return the initial value.
# This is done here, rather than on the field, because the
# field does not have access to the initial value
return self.initial["password"]
class ReadOnlyFormMixin(object):
"""
Mixin class for ModelForm or Form that provides support for SpanField on readonly fields
Meta:
readonly_fileds = (ro_field1, ro_field2)
"""
def __init__(self, *args, **kwargs):
super(ReadOnlyFormMixin, self).__init__(*args, **kwargs)
for name in self.Meta.readonly_fields:
field = self.fields[name]
if not isinstance(field, SpanField):
field.widget = SpanWidget()
if hasattr(self, 'instance'):
# Model form
original_value = str(getattr(self.instance, name))
else:
original_value = str(self.initial.get(name))
field.widget.original_value = original_value