forms.py
from django import forms
from .models import *
from django.db import models
class ItemForm(forms.ModelForm):
class Meta:
model = Item
fields = (
'title',
'category',
'price',
'img',)
class BuyForm(forms.ModelForm):
class Meta:
model = Order
fields = (
'item',
'delivery',
'price',
'buyer',)
views.py
from django.shortcuts import render, get_object_or_404, redirect
from .models import Item, Category
from django.utils import timezone
from .forms import *
from django.views.generic.edit import CreateView, DeleteView, UpdateView
# Reszta kodu
class ItemCreate(CreateView):
model = Order
fields = ['item', 'price', 'buyer', 'delivery']
def get_initial(self):
item = get_object_or_404(Item, pk=self.kwargs['pk'])
self.initial.update({
'buyer': self.request.user,
'price': item.price,
'item': item.pk,
})
return super(ItemCreate, self).get_initial()
models.py
from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User
class Category(models.Model):
title = models.CharField(max_length=100)
description = models.TextField()
def __str__(self):
return self.title
class Item(models.Model):
seller = models.ForeignKey(User, on_delete=models.CASCADE)
category = models.ForeignKey(Category, on_delete=models.CASCADE)
title = models.CharField(max_length=100)
price = models.FloatField(null=False, blank=False)
img = models.ImageField(blank=True, null=True,
upload_to='covers/%Y/%m/%D/')
published_date = models.DateTimeField(default=timezone.now)
def __str__(self):
return self.title
class Supplier(models.Model):
title = models.CharField(max_length=100)
def __str__(self):
return self.title
class Delivery(models.Model):
title = models.ForeignKey(Supplier, on_delete=models.CASCADE)
price_of_delivery = models.FloatField(null=False, blank=False)
def __str__(self):
return self.title
class Order(models.Model):
item = models.ForeignKey(Item, on_delete=models.CASCADE)
delivery = models.ForeignKey(Delivery, on_delete=models.CASCADE)
order_date = models.DateTimeField(default=timezone.now)
buyer = models.ForeignKey(User, on_delete=models.CASCADE)
price = models.FloatField(null=False, blank=False)
def __str__(self):
return self.item
urls.py
from django.contrib import admin
from django.urls import path
from . import views
from .views import ItemCreate
urlpatterns = [
#Reszta kodu
path('buy/<int:pk>', ItemCreate.as_view(), name='buy_item')
]
Potrzebuję zablokować przed zapisem pola tekstowe w formularzu "BuyForm". Chodzi o pola "item", "price" oraz "buyer". Mają one być tylko do odczytu.
Od razu zaznaczam, że próbowałem tego sposobu:
class BuyForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(BuyForm, self).__init__(*args, **kwargs)
self.fields['buyer'].widget.attrs['readonly'] = True
class Meta:
model = Order
fields = (
'item',
'delivery',
'price',
'buyer',)
Który okazał się nieskuteczny, ponieważ błędu co prawda konsola nie pokazuje, lecz pola nadal można dowolnie edytować.
