我使用的是django1.7,我有两个模型。django models.py使用外国字段排序
我的模型之一,我想指定ordering在外国模型的字段。这两个模型通过外键链接。
这里是我的两个例子型号:
class ObjectiveDetails(models.Model, FillableModelWithLanguageVersion):
user = models.ForeignKey(User)
language_version = models.ForeignKey('LanguageVersion')
field = models.TextField(null=False, blank=False, max_length=5000)
objective_timestamp_added = models.DateTimeField(auto_now_add=True, auto_now=False)
objective_timestamp_updated = models.DateTimeField(auto_now=True, auto_now_add=False)
class Meta:
ordering = ['language_version.language_code', 'id']
class LanguageVersion(models.Model):
"""Language version selection for a user"""
user = models.ForeignKey(User)
language_code = models.CharField(max_length=32)
language_code_disabled = models.BooleanField(default=False)
language_version_timestamp_added = models.DateTimeField(auto_now_add=True, auto_now=False)
language_version_timestamp_updated = models.DateTimeField(auto_now=True, auto_now_add=False) # the date the language version is updated when the user changes their subscription type.
我想通过在LanguageVersion模型作为language_code订购ObjectiveDetails。
我已经尝试了几次尝试,但我无法弄清楚。我已阅读文档和搜索SO &谷歌,但找不到正确的答案,由LANGUAGE_CODE
你尝试'ORDER_BY( 'LANGUAGE_VERSION')'? –