Question

我创建了一个表单集来提交项目成本，并且我希望每个提交都具有唯一的ID。我想稍后在URL中使用提交ID（即"projects/1/cost-submission-edit/3“）。1是项目的ID，3应该是成本提交的ID。

该表单集定义为：

models.py

class ProjectData(models.Model):
    project_name  = models.CharField(max_digits = 20)
    client = models.CharField(max_digits= 15)

class ProjectCostSubmission(models.Model):
        project_name  = models.ForeignKey(ProjectData, max_digits = 20)
        cost_name = models.CharField(max_digits= 15)
        amount = models.DecimalField(max_digits=9)
        submission_date = models.DateField(auto_now_add=True)
        payment_approval_date = models.DateField(auto_add_now=True)

forms.py

class MyForm(forms.ModelForm):

   def __init__(self, *args, **kwargs):
    super().__init__(*args, **kwargs)
    self.label_suffix = ""

   class Meta:
        model = ProjectData
        fields = "__all__"


MyFormSet = inlineformset_factory(ProjectData,ProjectCostSubmission, form=MyForm,extra=2)

views.py

class ProjectCostView(CreateView):
    template_name = "/project_cost.html"
    model = ProjectCostSubmission
    fields = '__all__'
    form_class = MyForm

urls.py

path("/projects/<int:project_id>/cost-submission-edit/",ProjectCostView.as_view(),name="costView")

提交3次后，表单集编辑页面将如下所示呈现表单集：

Project Name   Client   Cost Name  Amount   Submission Date  Approval Date
------------   ------   --------   ------   ---------------  -------------
Project1       Client1  Cost A     1000.00    12/02/2019      12/03/2019      
Project1       Client1  Cost B     1000.00    12/02/2019      12/03/2019
Project1       Client1  Cost C     1000.00    12/03/2019      12/03/2019
Project1       Client1  Cost A     1000.00    12/03/2019      12/03/2019      
Project1       Client1  Cost F     1000.00    12/04/2019      12/04/2019
Project1       Client1  Cost G     1000.00    12/04/2019      12/04/2019     
-------------------------------------------------------------------------
Total: $6000.00
-------------------------------------------------------------------------

with the url "/projects/1/cost-submission-edit/".'/1/' is the project id.

相反，我希望它看起来像这样：

url "/projects/1/cost-submission-edit/1/"


Project Name   Client   Cost Name  Amount   Submission Date  Approval Date
------------   ------   --------   ------   ---------------  -------------
Project1       Client1  Cost A     1000.00    12/02/2019      12/03/2019      
Project1       Client1  Cost B     1000.00    12/02/2019      12/03/2019
-------------------------------------------------------------------------
Total: $2000.00
-------------------------------------------------------------------------

url "/projects/1/cost-submission/2/"

Project Name   Client   Cost Name  Amount   Submission Date  Approval Date
------------   ------   --------   ------   ---------------  -------------
Project1       Client1  Cost C     1000.00    12/03/2019      12/03/2019
Project1       Client1  Cost A     1000.00    12/03/2019      12/03/2019
-------------------------------------------------------------------------
Total: $2000.00
-------------------------------------------------------------------------      

url "/projects/1/cost-submission/3/" 

Project Name   Client   Cost Name  Amount   Submission Date  Approval Date
------------   ------   --------   ------   ---------------  -------------  
Project1       Client1  Cost F     1000.00    12/04/2019      12/04/2019
Project1       Client1  Cost G     1000.00    12/04/2019      12/04/2019
-------------------------------------------------------------------------
Total: $2000.00
-------------------------------------------------------------------------

在这里，每个提交都具有唯一的ID，并将网址路径用作path("/projects/<int:project_id>/cost-submission-edit/",ProjectCostView.as_view(),name="costView")

如何为每个提交创建唯一的ID，以便我可以选择和编辑每个提交？谢谢。

Answer 1

我认为您的问题与两个因素有关：

您的网址应具有两个动态值。

如果您希望该网址为"/projects/1/cost-submission-edit/1/"，则您的网址应类似于：

path("/projects/<int:project_id>/cost-submission-edit/<int:submission_id>/",ProjectCostView.as_view(),name="costView")

您没有将url的动态值传递给视图。：

您的视图需要接收url的动态值。像这样：

def viewname(request, project_id,submission_id ):
    #from here your view already knows for example what to look for in project 
    #1, subbmission 3

如何为整个Django表单集创建唯一的ID？

1 个答案: