“模型对象没有属性'保存'" [英] "Model object has no attribute 'save'"

问题描述

不知道该怎么办.如何使用post方法从表单中以SQL添加数据?

Don't know what to do with this error. How to add data in SQL from forms using post method?

models.py

models.py

class Lala(models.Model):
    PRIORITY_CHOICES = ( 
        (0, '1'),
        (1, '2'),
        (2, '3'),
        (3, '4'),
     )
    name = models.CharField(max_length=20)
    date = models.DateField()
    priority = models.CharField(max_length=1, choices=PRIORITY_CHOICES)

Views.py

def add (request):
    if request.method == 'POST': # If the form has been submitted...
        form = AddLala(request.POST) # A form bound to the POST data
        if form.is_valid():
            newform = form.save()

Form.py

class AddLala(forms.Form):
    PRIORITY_CHOICES = ( 
        (0, '1'),
        (1, '2'),
        (2, '3'),
        (3, '4'),
     )
    name = forms.CharField(max_length=100)
    date = forms.DateField()
    priority = forms.CharField(max_length=1, widget=forms.Select(choices=PRIORITY_CHOICES))

add.html

<form target="upload_frame" action="" method="post" enctype="multipart/form-data" >
 {% csrf_token %}
    {{ form.as_p }}<br>
    <input type="submit" name="submit" value="Upload" id="submit">
</form>

urls.py

  (r'^add/$', 'QA.QAtool.views.add'),
   (r'^addLala/$', 'QA.QAtool.views.addLala'),

因此，如果我继续下一步的话，可以将数据添加到数据库-只需添加

So, I can Add data to DB, if I go next way - Just add

 lala = Lala(id=None, name='teststep3', date='1943-12-12', priority='High') 
 lala.save()

我真的不明白哪里出了问题，我到处都将form.save()视为标准方法，但对我而言却不是.

I really don't understand whats wrong, everywhere I see form.save() as a Standard method, but not for me.

推荐答案

尝试使用ModelForm而不是Form:

Try using a ModelForm instead of a Form:

class Lala(models.Model):
    PRIORITY_CHOICES = ( 
        (0, '1'),
        (1, '2'),
        (2, '3'),
        (3, '4'),
     )
    name = models.CharField(max_length=20)
    date = models.DateField()
    priority = models.CharField(max_length=1, choices=PRIORITY_CHOICES)

在forms.py中:

In forms.py:

from django import forms

class LalaForm(forms.ModelForm):
    class Meta:
        model = Lala

然后在视图中您的现有代码应该(几乎)覆盖了它:

Then in the view your existing code should (pretty much) cover it:

def add (request):
    if request.method == 'POST': # If the form has been submitted...
        form = LalaForm(request.POST) # A form bound to the POST data
        if form.is_valid():
            form.save()    # saves a new 'Lala' object to the DB

在此处签出ModelForm的文档.

Check out the docs for ModelForm here.

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