Django视图不能正确重定向

Question

我在使用Django快捷方式呈现页面时遇到了一些困难。我的工作流程非常简单：

1. 用户进入一个页面，在这里他们可以查看某些项目数据（detail_project）
2. 如果他们想更新项目数据，他们应该点击一个按钮，将发送POST请求，加载update_project页面。此页面将加载当前的项目数据。
3. 用户更新并提交新数据。提交后，它们返回到detail_project页面。

我的看法是这样的：

def update_project(request): 
    if request.method == 'POST': 
     if 'update_project_submit' in request.POST: 
      # updates project with form data and returns to detail project page 
      return redirect('detail_project', project_name=project_name) 
     else: 
      # loads project original data into the form 
    return render(request, 'project/update_project.html', context) 


def detail_project(request, project_name): 
    if request.method == 'POST':   
     if 'update_project' in request.POST: 
      return update_project(request) 
     else: 
      # does another stuff 
    else: 
     # shows project details 
     return render(request, 'project/detail_project.html', context)  

urls.py：

url(r'^project/update/$', views.update_project, name='update_project'), 
url(r'^project/details/(?P<project_name>[a-zA-Z][a-zA-Z0-9-_]+)/$', views.detail_project, name='detail_project'), 

而且update_project.html：

<form class="form-horizontal" role="form" action="" method="post"> 
    {% csrf_token %} 
    {% for field in form %} 

     <div class="form-group"> 
      <div class="col-sm-3"> 
       <label for="{{ field.id_for_label }}" class="control-label">{{ field.label }}</label> 
      </div> 

      <div class="col-sm-9"> 
       {{field}} 
      </div> 
      <div class="col-sm-12"> 
       {{ field.help_text }} 
      </div> 
     </div> 
     {{field.non_field_errors }} 
     {{field.errors}} 

    {% endfor %} 


    <button type="submit" name="update_project_submit" class="btn btn-primary">Submit</button> 

</form> 

[更新]

Forms.py

class UpdateProjectForm(forms.Form): 

    project_name_validator = RegexValidator(r'^[a-zA-Z][a-zA-Z0-9-_]{1,31}$', constants.PROJECT_NAME_INVALID) 
    project_name = forms.CharField(required=True, widget=forms.TextInput(attrs={'required': 'true'}), validators=[project_name_validator]) 
    project_description = forms.CharField(required=True, widget=forms.Textarea(attrs={'style':'resize:none;', 'required': 'true'})) 
    project_expiration = forms.DateField(required=False, widget=forms.TextInput(attrs={'class':'datepicker'})) 

    def __init__(self, *args, **kwargs): 
     super(UpdateProjectForm, self).__init__(*args, **kwargs) 
     self.fields['project_name'].label = "Project Name:" 
     self.fields['project_description'].label = "Project Description:" 
     self.fields['project_expiration'].label = "Expiration Date:" 

的问题是，我不能更新我的项目。我的页面正确加载表单（update_project）和当前数据（步骤2），但是当我提交它时（单击提交按钮，我将被重定向到详细项目页面而不输入if 'update_project_submit' in request.POST:声明。也许我的工作流程是错误的。不能看着办吧。

我印我的请求，我真的cofirmed，当我提交表单，我收到一个POST请求detail_project。

有我丢失的东西？还是我我试图根据Django的逻辑做错事？

Answer 1

使用

if request.POST.get('update_project_submit', False): 

代替

if 'update_project_submit' in request.POST: