您可以从django中的子对象访问父字段吗？
tl; dr：我想表达[child.child_field_value，child.parent_field_value]在django Child模型上，并获得['Alsatian'' ，'狗']或类似。
上下文：我正在尝试为Django中的JSON API准备一个dict，这样我就有两个模型，评估及其父charity> charity 。
在视图中，我过滤了所有符合某些参数的评估，然后使用评估列表中的dict comp secter.__ dict __。这个问题的重点，但是请告诉我您是否知道更好的练习！）：
response = { 'evaluations': [{
key:value for key, value in evaluation.__dict__.items()
if key not in ['_state']} for evaluation in evaluations]}
但是我想要一种结合字段charity_name和charity_abbreviation的好方法慈善机构与该评估领域的其余部分。到目前为止两个字段。
但是我还没有弄清楚如何做到这一点，而且似乎最终会遇到一个非常混乱的东西，这在功能上并不理想，因为我宁愿数组是两个关键：值对其余的词典。
tl;dr: I want to express something like [child.child_field_value, child.parent_field_value] on a Django child model and get an iterable like ['Alsatian', 'Dog'] or similar.
Context: I'm trying to prepare a dict for a JSON API in Django, such that I have two models, Evaluation and its parent Charity.
In the view I filter for all Evaluations meeting certain parameters, and then use a dict comp nexted in a list comp on evaluation.__dict__.items() to drop Django's '_state' field (this isn't the focus of this question, but please tell me if you know a better practice!):
response = { 'evaluations': [{
key:value for key, value in evaluation.__dict__.items()
if key not in ['_state']} for evaluation in evaluations]}
But I want a good way to combine the fields charity_name and charity_abbreviation of each Evaluation's parent charity with the rest of that evaluation's fields. So far the best way I can find/think of is during the dict comp to conditionally check whether the field we're iterating through is charity_id and if so to look up that charity and return an array of the two fields.
But I haven't figured out how to do that, and it seems likely to end up with something very messy which isn't isn't functionally ideal, since I'd rather that array was two key:value pairs in line with the rest of the dictionary.
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