将django变量传递给javascript

问题描述：

我在将变量从python后端传递到javascript时遇到了困难。我的很多变量在javascript中看起来像这样：

I'm having a difficult time passing variables from the python backend to javascript. A lot of my variables look like this in javascript:

if ('{{ user.has_paid_plan}}' == 'True') {
    isPayingUser = true;
} else {
    isPayingUser = false;
}

这很丑陋，我敢肯定有更干净的方法可以做到这一点。

It's ugly and I'm sure there's a much cleaner way to do this. How should this be done?

答

这可能是一个奇怪的方法，但是我想解决这个问题的一种方法是通过一个json对象作为变量，其中将包含所有其他变量。例如：

This may be an odd approach, but I suppose one way to solve this would be to pass a json object as a variable, which would contain all other variables. For example:

def user(request):
    user = request.user

    ctx = {
      'isPayingUser': user.is_paying_user()
      'age': user.age
      'username': user.email
    }

    json_ctx = json.dumps(ctx)
    ctx['json_ctx'] = json_ctx

    return render(request, 'template.html', ctx)

通过这种方式，您可以访问所有django / python变量，并且还可以对所有变量进行json编码为 json_ctx 对象，可以在javascript中使用。

In this way you have access to all the django/python variables, and you also have all the variables properly json-encoded as the "json_ctx" object which you can use in your javascript.

将django变量传递给javascript

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