from django.db import models
from django import forms
from django.core.exceptions import ValidationError
from django.core.validators import RegexValidator


class Feedback(models.Model):
    name = models.CharField(max_length=25,verbose_name="Имя",validators=[
RegexValidator(
regex='^[a-z]*$',
message='Username must be Alphanumeric',
code='invalid_username'
),
])
email = models.EmailField()
phone = models.CharField(max_length=12,verbose_name="Телефон")
text = models.TextField(max_length=128)
date = models.DateTimeField(auto_now_add=True,verbose_name="Дата")

def __str__(self):
return "Новый вопрос: %s %s" % (self.name, self.phone)

class Meta:
verbose_name = 'Вопросы клиентов'
verbose_name_plural = 'Обратная связь'

from django import forms
from django.forms import ModelForm
from .models import *

class FeedbackForm(forms.ModelForm):

class Meta:
model = Feedback
exclude = ['date']

widgets = {
'name':forms.TextInput(attrs={'class':'fb_form','placeholder':'Ваше имя'}),
'email':forms.TextInput(attrs={'class':'fb_form','placeholder':'E-mail адрес'}),
'phone':forms.TextInput(attrs={'class':'fb_form','placeholder':'Контактный телефон'}),
'text': forms.Textarea(attrs={'class':'fb_form','placeholder':'Ваше сообщение','rows':20, 'cols':40})

def feedback(request):
form = FeedbackForm(request.POST or None)

if request.method == "POST" and form.is_valid():
    name = form.cleaned_data['name']
    email = form.cleaned_data['email']
    phone = form.cleaned_data['phone']
    text = form.cleaned_data['text']

try:
    send_mail(name,text+'n'+email+'n'+phone,'test@yandex.ru',['test@yandex.ru'], fail_silently=False)
    new_form = form.save()
    return HttpResponse('yes :)')
except BadHeaderError:
    return HttpResponse('Invalid header found')
else:
form = FeedbackForm()
return render(request, 'feedback/feedback.html', locals())

class Article(models.Model):
    ...
    def clean(self):
        # Don't allow draft entries to have a pub_date.
        if self.status == 'draft' and self.pub_date is not None:
            raise ValidationError({'pub_date': _('Draft entries may not have a publication date.')})