我有一个由数据库视图支持的模型.
class OrgCode(models.Model):
org_code = models.CharField(db_column=u'code',max_length=15)
org_description = models.CharField(max_length=250)
org_level_num = models.IntegerField()
class Meta:
db_table = u'view_FSS_ORG_PROFILE'
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我需要在另一个模型中引用它
class AssessmentLocation(models.Model):
name = models.CharField(max_length=150)
org = models.ForeignKey(OrgCode)
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我无法运行syncdb,因为无法创建引用视图的外键约束.
u"Foreign key 'FK__main_asse__org__1D114BD1'
references object 'view_FSS_ORG_PROFILE'
which is not a user table.", None, 0, -214
7217900), None)
Command:
CREATE TABLE [main_assessmentlocation] (
[id] int IDENTITY (1, 1) NOT NULL PRIMARY KEY,
[name] nvarchar(150) NOT NULL,
[org] int NOT NULL REFERENCES [view_FSS_ORG_PROFILE] ([id]),
)
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解决方法是取出指向视图的Meta:db_table,让sync db创建OrgCode表,然后将meta:db_table放回syncdb之后.
有没有办法防止为某些模型或字段创建外键约束?
更新:我在相关模型中添加了一个静态方法,表明它是一个视图
class OrgCode(models.Model):
org_code = models.CharField(max_length=15) …Run Code Online (Sandbox Code Playgroud)