Question

我跟着this link并在我的django应用程序中尝试了类似的东西。在我的views.py中我定义了这样的东西：

def acadprogram(request):
    name = Program_requirement_category.objects.get(name='AS.SCIENCE')
    student_id = 2773951
    values = {'student_id':student_id}
    descendants = name.get_descendants(include_self=True)
    return render_to_response("courses.html", {'nodes':descendants.all()}, values, context_instance = RequestContext(request))

我尝试像这样访问student_id：

<h3><font color=#428BCA>Caleb Streeter {{student_id}}</font></h3>

但是django给我一个错误如下：

render_to_string() got multiple values for keyword argument 'context_instance'

那么我如何尝试通过 render_to_response传递值？

Answer 1

两个选项：

将值编辑为

values = {'student_id':student_id, 'nodes':descendants.all() }

并返回

render_to_response("courses.html", values, context_instance = RequestContext(request))

或只是

return render_to_response("courses.html", {'nodes':descendants.all(), 'student_id':student_id}, context_instance = RequestContext(request))

Answer 2

您的student_id变量需要添加到您拥有节点的字典中。这样的事情应该有效：

def acadprogram(request):
    name = Program_requirement_category.objects.get(name='AS.SCIENCE')
    student_id = 2773951
    descendants = name.get_descendants(include_self=True)
    values = {'student_id':student_id, 'nodes':descendants.all()}
    return render_to_response("courses.html", values, context_instance = RequestContext(request))

Answer 3

试试这个：

from django.shortcuts import render

def acadprogram(request):
    values = {}
    name = Program_requirement_category.objects.get(name='AS.SCIENCE')
    values['student_id'] = student_id = 2773951
    values['descendants'] = name.get_descendants(include_self=True)
    return render(request, "courses.html", values)

Answer 4

你可以简单地使用locals（）将局部变量传递给模板渲染。

return render_to_response('your/template.html', 
                          locals(), 
                          context_instance=RequestContext(request)

django视图没有使用render_to_response将值传递给镜像

4 个答案: