How to perform query on one to many relations tables using ORM and define serializers for it? - django-models

Question

data in request
city_name = 'Nashik'
tags = ['tag 1','tag 2', 'tag 3']
I try this
ws = WorkSamplesModel.objects.filter(business_account__serviceareasmodel__city_name=city_name,
business_account__professiontagsmodel__tag_name__in=tags_list,
is_business_card_image=True).distinct()
Now I want business_title ,business_description,status,note from BusinessAccountModel and
work_sample_image, work_sample_description, is_business_card_image from WorkSampleModel and
user_name,profile_pic from UserModel
how to create serializer for it?
models
I want to find a specific BusinessAccountModel using city_name and tags
and then one WorkSamplesModel for each BusinessAccountModel.
class BusinessAccountModel(models.Model):
business_title = models.CharField(max_length=70)
business_description = models.CharField(max_length=500)
status = models.CharField(max_length=100)
note = models.CharField(max_length=200)
user = models.OneToOneField(UserModel,on_delete=models.CASCADE)
class Meta:
db_table = 'wp_business_acc'
class ProfessionTagsModel(models.Model):
tag_name = models.CharField(max_length=20)
business_account = models.ForeignKey(BusinessAccountModel,on_delete=models.CASCADE)
class Meta:
db_table = 'profession_tags'
class ServiceAreasModel(models.Model):
city_name = models.CharField(max_length=20)
business_account = models.ForeignKey(BusinessAccountModel,on_delete=models.CASCADE)
class Meta:
db_table = 'service_areas'
class WorkSamplesModel(models.Model):
work_sample_image = models.ImageField(blank=True,null=True,upload_to="work_samples")
work_sample_description = models.CharField(max_length=1000)
is_business_card_image = models.BooleanField(default=False)
business_account = models.ForeignKey(BusinessAccountModel,on_delete=models.CASCADE)
class Meta:
db_table = 'work_samples'
BusinessAccountModel - ProfessionTagsModel : 1:M
BusinessAccountModel - ServiceAreasModel : 1:M
BusinessAccountModel - WorkSamplesModel : 1:M

Answer 1

ws = WorkSamplesModel.objects.filter(business_account__serviceareasmodel__city_name=city_name,
business_account__professiontagsmodel__tag_name__in=tags_list,
is_business_card_image=True).distinct()
Serializer for it
class SearchWorkingProgessionalsSerializers(serializers.Serializer):
business_title = serializers.CharField(source='business_account.business_title')
business_description = serializers.CharField(source='business_account.business_description')
status = serializers.CharField(source='business_account.status')
note = serializers.CharField(source='business_account.note')
work_sample_image = serializers.ImageField()
work_sample_description = serializers.CharField(max_length=1000)