Question

我对Django很新，并一直试图让它以某种方式构建查询结果。经过几个小时的尝试，我希望有人能告诉我如何改善预期的结果。

在这个简化的例子中，创建了一个单词，用户提交了该单词的定义，并对每个定义进行投票（最有趣，最悲伤，最重要的等等）：

models.py

from django.db import models

class Word(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    word = models.CharField()
    timestamp = models.DateTimeField()

class Definition(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    word = models.ForeignKey(Word, on_delete=models.CASCADE)
    definition = models.CharField()
    timestamp = models.DateTimeField()

class Vote_category(models.Model):
    category = models.CharField()

class Vote_history(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    definition = models.ForeignKey(Definition, on_delete=models.CASCADE)
    timestamp = models.DateTimeField()
    vote = models.ForeignKey(Vote_category, on_delete=models.CASCADE)

预期的查询结果结构

word: 'hello',
definitions: {
    {
        user: 'alice',
        definition: 'an expression of greeting',
        votes: {
            funny: 3,
            sad: 1,
            wtf: 7
        },
        votes_total: 11
    },
    etc...
}

当前查询

获取在特定日期创建的单词。然后得到它的所有定义：

Word.objects.filter(timestamp__date=datetime.date(2017, 2, 5)).values('definition__definition')

当前结果

<QuerySet [{'definition__definition': 'an expression of greeting'}, {'definition__definition': 'blah blah blah'}]>

感谢您提供的任何帮助。

Django查询结果结构

0 个答案: