如何在Django中编辑和删除数据？ [英] How do I edit and delete data in Django?

问题描述

我使用的是django 1.0，我已经使用Django书中的例子创建了我的模型。我能够执行添加数据的基本功能;现在我需要一种检索该数据的方式，将其加载到一个表单（change_form ?!或某事），编辑并将其保存回数据库。其次我如何删除数据库中的数据？请搜索，然后删除！

I am using django 1.0 and I have created my models using the example in the Django book. I am able to perform the basic function of adding data; now I need a way of retrieving that data, loading it into a form (change_form?! or something), EDIT it and save it back to the DB. Secondly how do I DELETE the data that's in the DB? i.e. search, select and then delete!

请给我一个代码示例，我需要在我的 view.py 和 urls.py 执行此任务。

Please show me an example of the code I need to write on my view.py and urls.py for perform this task.

推荐答案

说你有一个模型Employee。要编辑具有主键emp_id的条目：

Say you have a model Employee. To edit an entry with primary key emp_id you do:

emp = Employee.objects.get(pk = emp_id)
emp.name = 'Somename'
emp.save()

删除它只是do：

emp.delete()

所以一个完整的视图将是：

so a full view would be:

def update(request, id):
   emp = Employee.objects.get(pk = id)
   #you can do this for as many fields as you like
   #here I asume you had a form with input like <input type="text" name="name"/>
   #so it's basically like that for all form fields
   emp.name = request.POST.get('name')
   emp.save()
   return HttpResponse('updated')

def delete(request, id):
   emp = Employee.objects.get(pk = id)
   emp.delete()
   return HttpResponse('deleted')

在urls.py中，您需要两个这样的条目：

In urls.py you'd need two entries like this:

(r'^delete/(\d+)/$','myproject.myapp.views.delete'),
(r'^update/(\d+)/$','myproject.myapp.views.update'),

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