【发布时间】：2021-03-12 10:01:22
【问题描述】：
我正在尝试开发一个基于 django 的项目/网站，该项目/网站会记录最后带走我们狗的人。我对 django 很陌生，所以请忍受缺乏该领域的知识。我目前设置了我的项目，以便我有基于用户/家庭成员、家庭的狗、帖子（何时和谁带狗的日志）和动作的模型，这是一个使用狗的子类和将模型作为外键发布，以查看狗在被带出时是否撒尿或拉便。我坚持的部分是试图弄清楚我如何创建帖子表单。由于我们有两只狗，我需要表单/帖子页面来为每个存在的狗模型显示一组复选框（用于撒尿和拉便动作）。虽然我可以成功显示一个动作集，但我遇到了尝试显示正确数量的动作集以及发布动作集和帖子本身的困难。我一直在尝试使用 formset_factory 函数，但我对如何让它正常运行感到困惑。任何人都可以帮忙吗？我已经被这个问题困扰了很长一段时间，任何支持都将不胜感激。
models.py：
from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User
from django.urls import reverse
class Dog(models.Model):
name = models.CharField(max_length = 20)
class Post(models.Model):
walker = models.ForeignKey(User, on_delete = models.CASCADE)
time_posted = models.DateTimeField(default = timezone.now)
issues = models.TextField(max_length = 300)
class Action(models.Model):
post = models.ForeignKey(Post, on_delete = models.CASCADE)
dog = models.ForeignKey(Dog, on_delete = models.CASCADE)
peed = models.BooleanField(default = False)
pooped = models.BooleanField(default = False)
forms.py：
from django import forms
from django.forms import formset_factory
from dog_log_app.models import *
class Log_Form(forms.ModelForm):
class Meta:
model = Post
fields = ("issues",)
class Action_Form(forms.Form):
peed = forms.BooleanField(initial = False, required = False)
pooped = forms.BooleanField(initial = False, required = False)
views.py：
from django.shortcuts import render
from django.forms import formset_factory, modelformset_factory
from .models import Post, Dog, Action
from dog_log_app.forms import *
from django.contrib.auth.models import User
from django.http import HttpResponse, HttpResponseRedirect
def home(request):
context = {
'posts': Post.objects.all().order_by('-time_posted'),
'actions': Action.objects.all(),
'dogs': Dog.objects.all()
}
return render(request, 'dog_log_app/home.html', context)
def post(request):
form_post = Log_Form(request.POST or None)
form_actions = modelformset_factory(Action, fields = ('peed', 'pooped'), extra = Dog.objects.count())
if request.method == 'POST':
form_post = Log_Form(request.POST)
if form_post.is_valid() and form_actions.is_valid():
post_save = form_post.save(commit = False)
post_save.walker = request.user
post_save.save()
form_actions.save()
return HttpResponseRedirect('..')
context = {
'post': form_post,
'action': formset_factory(Action_Form, extra = Dog.objects.count()),
'dogs': Dog.objects.all()
}
return render(request, 'dog_log_app/post_form.html', context)
post_form.html：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Post</title>
</head>
<body>
<div>
<form method="POST">
{% csrf_token %}
<fieldset>
<legend>Create Post</legend>
<h3>{{dogs.name}}</h3>
<p>{{action.as_p}}</p>
<p>{{post.as_p}}</p>
</fieldset>
<div>
<button type="submit" value="Ok">Post</button>
</div>
</form>
</div>
</body>
</html>
【问题讨论】：
标签： python django django-models django-views django-forms