django模板表单使用局部变量进行渲染

时间:2014-03-30 16:08:06

标签: python django django-forms django-templates

https://docs.djangoproject.com/en/1.6/topics/forms/中的示例演示了表单的用法,并包含以下代码:

def contact(request):
if request.method == 'POST': # If the form has been submitted...
    form = ContactForm(request.POST) # A form bound to the POST data
    if form.is_valid(): # All validation rules pass
        return HttpResponseRedirect('/thanks/') # Redirect after POST
else:
    form = ContactForm() # An unbound form

return render(request, 'contact.html', {'form': form,})

和contact.html模板

<form action="/contact/" method="post">{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Submit" />
</form>

我想知道是否可以在render(request,...,{'form':form,})而不是指定模板文件contact.html来传递带有模板内容的变量,如下所示:

html = """
    <html>
    <head> bla bla bla</head>
    <body>
    <form action="/contact/" method="post">{% csrf_token %}
    {{ form.as_p }}
    <input type="submit" value="Submit" />
    </form>
    </body>
"""
return render(request, html, {'form': form,})

如果可能出现与此类方法相关的缺点和风险?

提前致谢!

1 个答案:

答案 0 :(得分:2)

不使用render,这是加载模板,呈现模板并返回响应的快捷方式。但你可以通过单独的电话来完成:

from django.template import RequestContext, Template
tpl = Template(html)
rendered = tpl.render(RequestContext(request, {'form': form}))
return HttpResponse(rendered)

主要缺点是你在python文件中混合了HTML,这使得它很难阅读。购买你可以使用这种技术从数据库或api加载模板,例如。