Question

我是django的新手，我正在网站上生成工程变更文档以支持产品设计活动。我有三个带有嵌套“多对多”字段的模型。开始生成文档时，我要求用户选择要为其生成文档的机箱，一旦选择了机箱，我想显示一个表格，其中包含“ DocDetials”模型中的所有字段以及一个表格，其中显示了所有可用于选中的机箱作为复选框，以便用户可以选择将更改应用到的主板。

我可以使用视图在模板中显示大多数DocDetails字段，并在峰会之后获取数据。我只需要能够显示和选择相应机箱的板即可。知道用户选择了哪个“机箱”后，假设发送到视图的表单具有默认的“机箱”。

几天来，我一直在寻找一种实现此目的的方法，尝试了几种方法，但一直未能做到这一点。关于如何显示一层多对多文件的答案很多，但是与 NESTED 多对多字段无关。我在SO尚未找到相关的解决方案。希望有人能指出我正确的方向。

这是models.py

class Board(models.Model):
    # Board in chassis#
    name = models.CharField(max_length = 20)
    SMT = models.CharField(max_length = 20)
    HM = models.CharField(max_length = 20)

    def __str__(self):
        #string representing the model object#
        return self.name

class Chassis(models.Model):
    #chassis information#
    name = models.CharField(primary_key=True, max_length = 10)
    board = models.ManyToManyField(Board)
    fa = models.CharField(max_length = 20, default= "")

    def __str__(self):
        #string representing the model object#
        return self.name


class DocDetials(models.Model):
    #Document Details#
    chassis = models.ManyToManyField(Chassis,blank = True)
    title = models.CharField(max_length = 50, help_text='Enter title for this document')
    content = models.TextField(max_length = 100, help_text='Enter detail explanation of the actions to be taken by this document')
    reason1 = models.TextField(max_length = 100, help_text='Explain the reason of the above mentioned changes')
    effect = models.TextField(max_length = 100, help_text='Explain what effct will the above mentioned change will have on the product')
    side_effect = models.TextField(max_length = 100, help_text='Mention any known side effect that could occur after applying these changes')
    other_info = models.TextField(max_length = 100, help_text='Mention other information related to these changes')
    number = models.IntegerField(null=True, blank=True)
    date = models.DateField(default=datetime.date.today, blank=True )

    plannedby = models.TextField(max_length = 100)
    checkedby1 = models.TextField(max_length = 100)
    checkedby2 = models.TextField(max_length = 100)
    approvedby = models.TextField(max_length = 100)

def __str__(self):
        return self.title

这是forms.py

class DocForm(forms.ModelForm):
    class Meta():
        model = DocDetials
        widgets = {
            'title': forms.TextInput(attrs={'class':'textinputclass'}),
            'content': forms.Textarea(attrs={'rows':6, 'cols':200}),
            'reason1': forms.Textarea(attrs={'rows':6, 'cols':200}),
            'effect': forms.Textarea(attrs={'rows':6, 'cols':200}),
            'side_effect': forms.Textarea(attrs={'rows':6, 'cols':200}),
            'other_info': forms.Textarea(attrs={'rows':6, 'cols':200}),
        }
        fields = '__all__'

将模板中的嵌套多对多字段显示为复选框

0 个答案: