Djongo : Value: '__' must be an instance of <class 'dict'> or <class 'list'> when defining EmbeddedField or ArrayField in model

[prakharrai]

Error : On Django Admin form - input value ----Value: '__' must be an instance of <class 'dict'> or <class 'list'> when defining EmbeddedObjects or ArrayField in model

Python script

class Entry(models.Model):
    DELIVERY_METHODS = (
        ('No Shipping Needed', 'No Shipping Needed'),
        ('Standard Shipping', 'Standard Shipping'),
        ('Cargo Shipping', 'Cargo Shipping'),
    )
    name = models.CharField(max_length=250)
    sr_no = models.IntegerField()
    milestone = models.CharField(max_length=100)
    inspection_period = models.IntegerField()
    #delivery_type =  models.CharField(max_length=100, choices=DELIVERY_METHODS)
    shipping_price = models.IntegerField()
    unit_price = models.IntegerField()
    description = models.TextField()


    class Meta:
        #verbose_name = "Child"
        #verbose_name_plural = "Children"
        abstract = True
    def __str__(self):
        return self.name


class Post(models.Model):
    SHIPPING_METHODS = (
        ('Courier', 'Courier'),
        ('None', 'None'),
    )
    SHIPPING_PAYMENTS = (
        ('Buyer', 'Buyer'),
        ('Seller', 'Seller'),
        ('Shipping Cost', 'Shipping Cost'),
    )
    ESCROW_PAYMENTS = (
        ('Buyer', 'Buyer'),
        ('Seller', 'Seller'),
        ('50 - 50', '50 Buyer - 50 Seller'),
    )
    #_id = models.ObjectIdField()
    title = models.CharField(max_length=100)
    content = models.TextField()
    date_posted = models.DateTimeField(default=timezone.now)
    author = models.ForeignKey(User, on_delete=models.CASCADE)

    type_of_transaction = models.CharField(max_length=100)
    user_email = models.CharField(max_length=100)
    buyer_phone_number = models.CharField(max_length=12, default=None)
    price = models.IntegerField()
    shipping_method = models.CharField(max_length=7, choices=SHIPPING_METHODS)
    entry = models.EmbeddedField(model_container=Entry,)
    objects = models.DjongoManager()

    def __str__(self):
        return self.title
    
    def get_absolute_url(self):
        return reverse('post-detail', kwargs={'pk': self.pk})

Traceback

[Teketel]

The same as https://github.com/nesdis/djongo/issues/491

Downgrading Djongo to 1.3.1 works for me,

[prakharrai]

The same as #491

Downgrading Djongo to 1.3.1 works for me,

Thanks for the reply. Downgrading to 1.3.1 doesn't work for me since my project needs Django 3 which is not supported by this version Djongo. Any other workarounds to the issue? Haven't been able to find any other answers online.

[zi-bot]

hey, do you have any solution.?, this issue same with me

[TorhamDev]

Hello, I get this error in other versions But in djongo version 1.3.3 and Django == 3.0.5 Everything worked fine

[AlekseiZag]

Hello, I get this error in other versions But in djongo version 1.3.3 and Django == 3.0.5 Everything worked fine

pls, show all requirements.txt file. I tried to use djongo==1.3.3 and Django == 3.0.5, but nothing comes out...

[NachE]

This usually happens when you define an ArrayField when you should actually define an EmbeddedField in your model. Or vice versa.