如何在 Mako 模板中使用 dicts? [英] How to use dicts in Mako templates?

问题描述

每当我将复杂的数据结构传递给 Mako 时，都很难对其进行迭代.例如，我传递一个 dict of list 的 dict，要在 Mako 中访问它，我必须执行以下操作:

Whenever I pass a complicated data structure to Mako, it's hard to iterate it. For example, I pass a dict of dict of list, and to access it in Mako, I have to do something like:

% for item in dict1['dict2']['list']: ... %endfor

我想知道 Mako 是否有某种机制可以代替 [] 用法来使用简单的 . 访问字典元素?

I am wondering if Mako has some mechanism that could replace [] usage to access dictionary elements with simple .?

然后我可以将上面的行写为:

Then I could write the line above as:

% for item in dict1.dict2.list: ... %endfor

哪个更好，不是吗?

谢谢，博达·西多.

推荐答案

class Bunch(dict):
    def __init__(self, d):
        dict.__init__(self, d)
        self.__dict__.update(d)

def to_bunch(d):
    r = {}
    for k, v in d.items():
        if isinstance(v, dict):
            v = to_bunch(v)
        r[k] = v
    return Bunch(r)

将 dict1 传递给 to_bunch 函数，然后再将其传递给 Mako 模板.不幸的是，Mako 没有提供任何钩子来自动执行此操作.

Pass dict1 to to_bunch function before passing it to Mako template. Unfortunately Mako doesn't provide any hooks to do this automatically.

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