如何输出和保存django CreateView中相关的两个模型

我想展示和保存我的食谱。然而，我有一个配方模型，它与recipelist模型有多对多的关系

我的模型：

class IngredientList(models.Model):
    name = models.CharField(max_length=100)
    image = models.ImageField(default='ing.jpg', blank=True, null=True)

    recipes = models.ManyToManyField('RecipeList', through='RecipeList')

    def __str__(self):
        return self.name


class Units(models.Model):
    name = models.CharField(max_length=20, default='')
    unit = models.CharField(default=None, max_length=5)

    def __str__(self):
        return self.name


class RecipeList(models.Model):
    choice = [
        ('Italian', 'It'),
        ('French', 'Fr'),
        ('Mexican', 'Mx'),
        ('Trinidad & Tobado', 'TT'),
    ]
    name = models.CharField(max_length=100)
    ingredients = models.ManyToManyField(
        'IngredientList', through='ShoppingList')
    instructions = models.TextField(max_length=3000)
    serving_size = models.IntegerField()
    cuisine_type = models.CharField(max_length=100, choices=choice)
    image = models.ImageField(default='recipe.jpg', blank=True, null=True)

    def __str__(self):
        return self.name

    def get_absolute_url(self):
        return reverse('recipe-detail', kwargs={'pk': self.pk})


class RecipeList(models.Model):
    ingredients = models.ForeignKey(IngredientList, on_delete=models.CASCADE)
    recipe = models.ForeignKey(RecipeList, on_delete=models.CASCADE)
    unit = models.ForeignKey(
        Units, on_delete=models.CASCADE, null=True, blank=True)
    measurement = models.FloatField(default=1)

我的看法是：

class RecipeCreateView(CreateView):
    model = RecipeList
    fields = ['name', 'instructions', 'cuisine', 'serving_size', 'image']

我想在视图上输出一个表单，该表单具有：

配方名称 Recipe.RecipeList.measurement-Recipe.RecipeList.unit-Recipe.RecipeList.Components 配方说明

我不想输出Recipe.components，也不想定义每个元素的单位或测量值，而是希望能够将所有元素保存在一个表单中。 但我在数据库方面非常薄弱，而且对django还不熟悉。谁能给我指出正确的方向吗

在应用程序目录中创建forms.py文件

导入以下代码：

 from django.forms import ModelForm
 from myapp.models import RecipeList

class RecipeForm(ModelForm):
   class Meta:
    model = RecipeList
    fields = {'name', 'instructions', 'cuisine', 'serving_size', 'image'}

def somename(request):
    # POST request
    if request.method == POST:
         #getting the post data
         form = RecipeForm(request.POST, request.FILES)
         # checking if the form is valid
         if form.is_valid():
             # saves the form
              form.save()
              # return to the same view
              return redirect('somename')
     #get request
     else:
       form = RecipeForm()
        return render(request, 'templatesdirectory/htmlfile', {'form':form})

转到your views.py并添加以下代码：

 from django.forms import ModelForm
 from myapp.models import RecipeList

class RecipeForm(ModelForm):
   class Meta:
    model = RecipeList
    fields = {'name', 'instructions', 'cuisine', 'serving_size', 'image'}

def somename(request):
    # POST request
    if request.method == POST:
         #getting the post data
         form = RecipeForm(request.POST, request.FILES)
         # checking if the form is valid
         if form.is_valid():
             # saves the form
              form.save()
              # return to the same view
              return redirect('somename')
     #get request
     else:
       form = RecipeForm()
        return render(request, 'templatesdirectory/htmlfile', {'form':form})

如果你是django的新手，你还需要自己添加URL和html。我建议你免费在youtube上阅读教程，或者如果你对python很熟悉，可以阅读django的文档。请注意，代码中的空格不正确