用django createview从表单和其他字段保存对象

Question

我对如何在my_model中添加的其他字段，这些字段 在我的html表单中被排除在 forms.py 中，同时用 > CreateView ！

models.py：views.py：mymodel.html

class My_model(models.Model):
    # attrs in the form that are saved already with now problem
    ...
    #attrs excluded in forms.py but I want to save them along with the form
    attr_1=models.CharField(max_length=30)
    attr_2_type=[('a','A'),('b','B')]
    attr_2=models.Charfield(max_length=8,choices=attr_2_type)
    ...
    def get_absolute_url(self):
        return reverse("application:redirectin_pattern_name", kwargs={"pk":self.pk})

都是

class MyModelCreateView(CreateView):
    model= My_model
    form_class = MyModelForm
    template_name = "application/mymodel.html"

这里的

<div class="row ">   
    <div class="col-md-3"></div>
            <div class="col-md-6">
                {% block form %}
                     <form method="post" action="{% url 'application:pattern_name' %}">
                {% endblock form %}
                    {% csrf_token %}
                    {{ form.as_p }}
                    <input class="form-control btn-primary" type="submit" name="save" 
                       value="send your demand" />
                </form>
            </div>
        </div>

一切正常，表格显示了，我可以提交数据并将其保存到数据库中，然后我自动将其重定向到我保存的对象的详细信息页面，所有详细信息 更正我什至检查了另一个对象的传递ID，以查看其是否更改并显示每个对象的详细信息，并且也可以工作。

现在，当我将表单保存到数据库时，我只想同时保存模型的其余属性。

根据要求 forms.py：urls.py

from .models import My_Model

class MyModelForm(ModelForm):
    class Meta:
        model=My_Model
        exclude=("attr_1", "attr_2")
        widgets={
            # i listed all the attributes that I need the user to 
            # fill and they all are being saved correctly 
        }

​

urlpatterns=[
    path('demand', views.MyModelCreateView.as_view(), name='patern_name'),
path('detils', views.MyModelDetailView.as_view(), name='redirectin_pattern_name'),
]

Answer 1

解决的

感谢我解决的互动，但我无法解释代码，因此我只会发布它。

我对Views.py进行了更改

class MyModelCreateView(CreateView):
    model= My_model
    form_class = MyModelForm
    template_name = "application/mymodel.html"

    def form_valid(self, form):
    # comment: this fn will return the data from the HTML form 
    # and add to it the missing attrs of the model then save it
        form.instance.attr_1='string I want to save'
        #to save a clean string pass it between '' not ""
        form.instance.attr_2='a'
        return super().form_valid(form)