如何将数据添加到ManyToManyField? [英] how to add data into ManyToManyField?
本文介绍了如何将数据添加到ManyToManyField?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
类别= models.ManyToManyField(fragmentCategory)
FragmentCategory:
$ b $
$ b CATEGORY_CHOICES =(
('val1','value1'),
('val2','value2'),
('val3','value3'),
)
name = models.CharField(max_length = 20,choices = CATEGORY_CHOICES )
以下是要发送的表单:
< input type =checkboxname =val1/>
< input type =checkboxname =val2/>
< input type =checkboxname =val3/>
我尝试过这样的东西:
categories = fragmentCategory.objects.get(id = 1),
或者:
categories = [1,2]
解决方案
有一整页的Django文档致力于此,从内容页面进行索引。
正如该页面所述,您需要执行以下操作:
my_obj.categories.add(fragmentCategory.objects.get id = 1))
或
my_obj.categories.create(name ='val1')
I can't find it anywhere, so your help will be nice for me :) Here is that field:
categories = models.ManyToManyField(fragmentCategory)
FragmentCategory:
class fragmentCategory(models.Model):
CATEGORY_CHOICES = (
('val1', 'value1'),
('val2', 'value2'),
('val3', 'value3'),
)
name = models.CharField(max_length=20, choices=CATEGORY_CHOICES)
Here is the form to send:
<input type="checkbox" name="val1" />
<input type="checkbox" name="val2" />
<input type="checkbox" name="val3" />
I tried something like this:
categories = fragmentCategory.objects.get(id=1),
Or:
categories = [1,2]
解决方案
There's a whole page of the Django documentation devoted to this, well indexed from the contents page.
As that page states, you need to do:
my_obj.categories.add(fragmentCategory.objects.get(id=1))
or
my_obj.categories.create(name='val1')
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