Question

我的应用当前正在使用两个不同的数据库运行：默认为只读，而histo是我正在编写的数据库。

我已更改admin.py文件以更改默认数据库：

class MultiDBModelAdmin(admin.ModelAdmin):
    using='histo'

    def save_model(self, request, obj, form, change):
        # Tell Django to save objects to the 'histo' database.
        obj.save(using=self.using)

    def delete_model(self, request, obj):
        # Tell Django to delete objects from the 'histo' database
        obj.delete(using=self.using)

    def get_queryset(self, request):
        # Tell Django to look for objects on the 'histo' database.
        return super().get_queryset(request).using(self.using)

    def formfield_for_foreignkey(self, db_field, request, **kwargs):
        # Tell Django to populate ForeignKey widgets using a query
        # on the 'histo' database.
        return super().formfield_for_foreignkey(db_field, request, using=self.using, **kwargs)

    def formfield_for_manytomany(self, db_field, request, **kwargs):
        # Tell Django to populate ManyToMany widgets using a query
        # on the 'histo' database.
        return super().formfield_for_manytomany(db_field, request, using=self.using, **kwargs)

当我运行manage.py createsuperuser时，出现错误：

django.db.utils.ProgrammingError: relation "auth_user" does not exist

我尝试了manage.py migration --database = histo auth，但是仍然出现此错误。我认为这与默认数据库处于只读状态有关。

您能帮我吗？谢谢

多个数据库的管理员配置问题

0 个答案: