Forth option field in not working. Not taking any data from db

[edgarsbalodis]

I try to chain four categories with django smart select but it does not work properly. Django does not take or input values from in the last one. clothing_size. It is working properly till clothing sizes. That selectbox is always empty. What could be the problem here? That does not seem like js problem, because other fields are working properly.

` from django.db import models from smart_selects.db_fields import ChainedForeignKey

class MainCategory(models.Model):
name = models.CharField(max_length=20, null=True)

def __str__(self):
    return self.name

class ClothingType(models.Model):
main_category = models.ForeignKey(MainCategory, on_delete=models.CASCADE, null=True)
clothing_type = models.CharField(max_length=64, null=True)

def __str__(self):
    template = '{0.main_category} {0.clothing_type}'
    return template.format(self)

class ClothingSubType(models.Model):
main_category = models.ForeignKey(MainCategory, on_delete=models.CASCADE, null=True)

# clothing_type = models.ForeignKey(ClothingType, on_delete=models.CASCADE, null=True)
clothing_type = ChainedForeignKey(ClothingType, chained_field="main_category", 
chained_model_field="main_category", show_all=False, auto_choose=True, sort=True, null=True)
clothing_sub_type = models.CharField(max_length=254, null=True)

def __str__(self):
    template = '{0.main_category} {0.clothing_type} {0.clothing_sub_type}'
    return template.format(self)

class ClothingSize(models.Model):
main_category = models.ForeignKey(MainCategory, on_delete=models.CASCADE, null=True)
clothing_type = ChainedForeignKey(ClothingType, chained_field="main_category", 
chained_model_field="main_category", show_all=False, auto_choose=True, sort=True, null=True)
clothing_sub_type = ChainedForeignKey(ClothingSubType, chained_field="clothing_type", 
chained_model_field="clothing_type", show_all=False, auto_choose=True, sort=True, null=True)

# clothing_sub_type = models.ForeignKey(ClothingSubType, on_delete=models.CASCADE, null=True)
clothing_size = models.CharField(max_length=30, null=True)

def __str__(self):
    template = '{0.main_category} {0.clothing_type} {0.clothing_sub_type} {0.clothing_size}'
    return template.format(self)

class Product(models.Model):
name = models.CharField(max_length=30, null=True)
sku = models.CharField(max_length=20, null=True)
main_category = models.ForeignKey(MainCategory, on_delete=models.CASCADE, null=True)
clothing_type = ChainedForeignKey(
                                    ClothingType, 
                                    chained_field="main_category", 
                                    chained_model_field="main_category", 
                                    show_all=False, 
                                    auto_choose=True, 
                                    sort=True, 
                                    null=True
                                    )

product_category = ChainedForeignKey(
                                    ClothingSubType, 
                                    chained_field="clothing_type", 
                                    chained_model_field="clothing_type", 
                                    show_all=False,
                                    auto_choose=True, 
                                    sort=True, 
                                    null=True
                                    )

clothing_size = ChainedForeignKey(
                                    ClothingSize,
                                    chained_field="clothing_sub_type",
                                    chained_model_field="clothing_sub_type",
                                    show_all=False,
                                    auto_choose=True, 
                                    sort=True, 
                                    null=True
                                    )

def __str__(self):
    template = '{0.name}'
    return template.format(self)

`