old_contents: from .models import Star
  from categories.serializers import CategorySimpleSerializer, KeywordSerializer
  from employees.models import Employee
  from rest_framework import serializers
  
  
  class EmployeeSimpleSerializer(serializers.ModelSerializer):
      class Meta:
          model = Employee
          fields = ('pk', 'username', 'first_name', 'last_name', 'avatar')
  
  
  class StarSerializer(serializers.ModelSerializer):
      class Meta:
          model = Star
          fields = ('pk', 'date', 'text', 'from_user', 'to_user', 'category', 'subcategory', 'keyword')
  
  
  class StarBulkSerializer(serializers.Serializer):
      category = serializers.IntegerField()
      subcategory = serializers.IntegerField()
      keyword = serializers.IntegerField()
      text = serializers.CharField()
      to_users = serializers.ListField(
          child=serializers.IntegerField()
      )
  
  
  class StarSmallSerializer(serializers.ModelSerializer):
      from_user = EmployeeSimpleSerializer()
      category = CategorySimpleSerializer()
      keyword = KeywordSerializer()
  
      class Meta:
          model = Star
          depth = 1
          fields = ('pk', 'date', 'text', 'category', 'from_user', 'keyword')
  
  
  class StarSwaggerSerializer(serializers.ModelSerializer):
      class Meta:
          model = Star
          fields = ('pk', 'category', 'subcategory', 'keyword', 'text')
  
  
  class StarEmployeesSubcategoriesSerializer(serializers.Serializer):
      pk = serializers.IntegerField(source='subcategory__pk')
      name = serializers.CharField(max_length=100, source='subcategory__name')
      num_stars = serializers.IntegerField()
  
  
  class StarTopEmployeeLists(serializers.Serializer):
  
      def get_avatar(self, data):
          employee = Employee.objects.get(pk=data['to_user__pk'])
          if employee.avatar:
              avatar_url = employee.avatar.url
          else:
              avatar_url = ""
          return avatar_url
  
      pk = serializers.IntegerField(source='to_user__pk')
      username = serializers.CharField(max_length=100, source='to_user__username')
      first_name = serializers.CharField(max_length=100, source='to_user__first_name')
      last_name = serializers.CharField(max_length=100, source='to_user__last_name')
      avatar = serializers.SerializerMethodField()
      num_stars = serializers.IntegerField()
  
  
  class StarKeywordList(serializers.Serializer):
      pk = serializers.IntegerField(source='keyword__pk')
      name = serializers.CharField(source='keyword__name')
      num_stars = serializers.IntegerField()
  
new_contents: from .models import Star
  from categories.serializers import CategorySimpleSerializer, KeywordSerializer
  from employees.models import Employee
  from rest_framework import serializers
  
  
  class EmployeeSimpleSerializer(serializers.ModelSerializer):
      class Meta:
          model = Employee
          fields = ('pk', 'username', 'first_name', 'last_name', 'avatar')
  
  
  class StarSerializer(serializers.ModelSerializer):
      class Meta:
          model = Star
          fields = ('pk', 'date', 'text', 'from_user', 'to_user', 'category', 'subcategory', 'keyword')
  
  
  class StarBulkSerializer(serializers.Serializer):
      category = serializers.IntegerField()
      subcategory = serializers.IntegerField()
      keyword = serializers.IntegerField()
      text = serializers.CharField()
      to_users = serializers.ListField(
          child=serializers.IntegerField()
      )
  
  
  class StarSmallSerializer(serializers.ModelSerializer):
      from_user = EmployeeSimpleSerializer()
      category = CategorySimpleSerializer()
      keyword = KeywordSerializer()
  
      class Meta:
          model = Star
          depth = 1
          fields = ('pk', 'date', 'text', 'category', 'from_user', 'keyword')
  
  
  class StarSwaggerSerializer(serializers.ModelSerializer):
      class Meta:
          model = Star
          fields = ('pk', 'category', 'subcategory', 'keyword', 'text')
  
  
  class StarEmployeesSubcategoriesSerializer(serializers.Serializer):
      pk = serializers.IntegerField(source='subcategory__pk')
      name = serializers.CharField(max_length=100, source='subcategory__name')
      num_stars = serializers.IntegerField()
  
  
  class StarTopEmployeeLists(serializers.Serializer):
  
      def get_avatar(self, data):
          employee = Employee.objects.get(pk=data['to_user__pk'])
          if employee.avatar:
              avatar_url = employee.avatar.url
          else:
              avatar_url = ""
          return avatar_url
  
      pk = serializers.IntegerField(source='to_user__pk')
      username = serializers.CharField(max_length=100, source='to_user__username')
      first_name = serializers.CharField(max_length=100, source='to_user__first_name')
      last_name = serializers.CharField(max_length=100, source='to_user__last_name')
      level = serializers.IntegerField(source='to_user__level')
      avatar = serializers.SerializerMethodField()
      num_stars = serializers.IntegerField()
  
  
  class StarKeywordList(serializers.Serializer):
      pk = serializers.IntegerField(source='keyword__pk')
      name = serializers.CharField(source='keyword__name')
      num_stars = serializers.IntegerField()
  
subject: Add level to StarTopEmployeeList serializer