python - django smart_selects - syncdb 错误

Question

出现错误:

TypeError: init() 得到了一个意外的关键字参数 'chained_model_field'

在更改我的模型后运行 syncdb 时。

模型.py

class Category(models.Model):
    cat_no = models.IntegerField(null=True, blank=True)
    cat_txt = models.CharField(max_length=45)

class E_cat(models.Model):
    cat_no = models.ForeignKey(Category)
    cat_txt = models.CharField(max_length=45)
    scat_no = models.IntegerField(null=True, blank=True)
    scat_txt = models.CharField(max_length=45)

class Equip(models.Model):
    category = models.ForeignKey(Category)
    subcategory = models.ForeignKey(
        E_cat,
        chained_field="cat_no",
        chained_model_field="cat_no",
        show_all=False,
        auto_choose=True,
    )
    manufacturer = models.CharField(max_length=35, blank=True)
    mfg_no = models.CharField(max_length=35, blank=True)
    size = models.CharField(max_length=35, blank=True)
    color = models.CharField(max_length=35, blank=True)
    quanity = models.IntegerField(null=True, blank=True)
    short_description = models.CharField(max_length=80, blank=True)
    location_zip = models.IntegerField(null=True, blank=True)
    listings = models.ForeignKey(Listings)
    info = models.TextField(null=True, blank=True)

Answer 1

这里的问题是 django.db.models.ForeignKeyField 不接受 chained_model_field 参数。

您可以在收到的回溯中看到这一点:

  File ".../models.py", line 42, in MyModel    subcategory = m.ForeignKey(…)               <--- here  File "…/related.py", line 840, in __init__    Field.__init__(self, **kwargs)TypeError: __init__() got an unexpected keyword argument 'chained_model_field'

可能你想要 https://github.com/digi604/django-smart-selects它定义了一个类似于 ForeignKey 的字段，它包含一个 chained_model_field 参数？