一个视图Django中不同的多种形式

Question

我想知道是否有一种方法可以在一个视图中包含多个不同的表单，并按下一个提交按钮来存储信息。 我有以下表单，第一个是我应该首先创建的通用表单：

class GeneralForm(forms.ModelForm):
    name = forms.CharField(max_length=50)

    TYPE_CHOICES = (
        ("C","C"),
        ("E","E")
    )

    STATUS_CHOICES = (
        ("A", "A"),
        ("F", "F"),
    )
    type=forms.ChoiceField(choices=STATUS_CHOICES)
    number=forms.CharField(max_length=50)
    TURN_CHOICES = (
        ("1", "1"),
        ("2", "2"),
        ("3", "3")
    )
    turn = forms.ChoiceField(choices=TURN_CHOICES)

   

    class Meta:
        model = models.General
        fields=["name","type","number","turn"]

第二个需要第一个的实例，第三个也需要：

class TypeOneForm(forms.ModelForm):
    num_chairs=forms.IntegerField()
    num_instalations = forms.IntegerField()
    total = forms.IntegerField()
    num_programs = forms.IntegerField()


    class Meta:
        model = models.TypeOne
        fields=["num_chairs","num_instalations","total","billetes_cien"]



class TypeTwoForm(forms.ModelForm):
    
    num_available_seats=forms.IntegerField()
    num_available_instalations = forms.IntegerField()
    total = forms.IntegerField()
    num_new_programs = forms.IntegerField()


    class Meta:
        model = models.TypeTwo
        fields=["num_available_seats", "num_available_instalations","total","num_programs" ]

这些是我的模型：

from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User
from django.urls import reverse


# Create your models here.
class General(models.Model):
    author = models.ForeignKey(User, on_delete=models.CASCADE, default=1)
    name = models.CharField(max_length=100)
    TYPE_CHOICES = {
        "C": "C",
        "E": "E",
    }
    type = models.CharField(max_length=10, choices=TYPE_CHOICES)
    STATUS_CHOICES = {
        "A": "A",
        "F": "F",
    }
    status = models.CharField(max_length=10, choices=STATUS_CHOICES)
    number = models.CharField(max_length=100)
    TURN_CHOICES = {
        "1": "1",
        "2": "2",
        "3": "3",
    }
    turn = models.CharField(max_length=10, choices=TURN_CHOICES)

    def __str__(self):
        return self.name


class One(models.Model):
    one = models.OneToOneField(General, on_delete=models.CASCADE, primary_key=True)
    num_chairs = models.IntegerField(default=0)
    num_installations = models.IntegerField(default=0)
    total = models.IntegerField(default=0)
    num_programs = models.IntegerField(default=0)


class Two(models.Model):
    two = models.OneToOneField(General, on_delete=models.CASCADE, primary_key=True)
    num_available_seats = models.IntegerField(default=0)
    num_available_installations = models.IntegerField(default=0)
    total = models.IntegerField(default=0)
    num_new_programs = models.IntegerField(default=0)

这些是我的观点，但我也不确定如何针对这个特定情况编写创建视图和更新视图。

from django.shortcuts import render, get_object_or_404
from django.contrib.auth.mixins import LoginRequiredMixin, UserPassesTestMixin
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User
from django.views.generic import (
    ListView,
    DetailView,
    CreateView,
    UpdateView,
)
from .models import General, One,Two
# Create your views here.

class GeneralListView(ListView):
    model = General
    template_name = "testing/user_testing.html"
    context_object_name = 'generals'

class GeneralDetailView(DetailView):
    model = General

class GeneralCreateView(LoginRequiredMixin, CreateView):
    model = General
    fields = '__all__'

    def form_valid(self, form):
        form.instance.author = self.request.user
        return super().form_valid(form)
class GeneralUpdateView(LoginRequiredMixin, UpdateView):
    pass

我正在阅读我可以使用 FormSets，但我不确定是否可以使用不同的表单而不是同一表单的多个实例。

Answer 1

您在这里寻找的工具是表单类的前缀参数。您需要重写一些视图方法，例如 get_form 和可能的 get_form_class ，因为基于类的视图默认情况下不会采用多种表单类型。您可能还需要重写视图上的 post 方法，以将 post 请求中的数据加载到表单中。

前缀参数意味着发送到 django 应用程序的表单数据将被“命名空间”，因此表单类只会加载请求中所需的发布数据。

根据您呈现表单的方式，您可能希望确保前缀也呈现在 HTML 输入的 name 属性中。

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