from rest_framework import serializers from core.models import Course, Instructor, InstructorTime, InstructorHoldWeek, InstructorDocuments, Testimonial, UserCourse, InstructorEducation, InstructorTime class InstructorDetailsSerializer(serializers.ModelSerializer): documents = serializers.SerializerMethodField() educations = serializers.SerializerMethodField() timeslot = serializers.SerializerMethodField() profile_completion = serializers.SerializerMethodField() image = serializers.SerializerMethodField() profile_status = serializers.SerializerMethodField() class Meta: model = Instructor fields = [ 'id', 'user', 'name', 'occupation', 'details', 'contact_email', 'status', 'is_one_to_one', 'is_one_to_group', 'is_one_to_many', 'is_selfpaced', 'hourly_fee', 'city', 'language', 'wp_number', 'skype_id', 'website', 'linked_in_id', 'profile_completion', 'documents', 'educations', 'timeslot', 'image', 'profile_status' ] def get_profile_status(self, obj): user = obj.user return user.userinformation.profile_lock def get_profile_completion(self, obj): # Call the method to get the profile completion percentage return obj.calculate_instructor_profile_completion() def get_documents(self, obj): documents = InstructorDocuments.objects.filter(instructor=obj.id) serializer = InstructorDocumentsSerializer(documents, many=True) return serializer.data def get_educations(self, obj): educations = InstructorEducation.objects.filter(instructor=obj.id) serializer = InstructorEducationSerializer(educations, many=True) return serializer.data def get_timeslot(self, obj): educations = InstructorTime.objects.filter(instructor=obj.id) serializer = InstructorTimeSerializer(educations, many=True) return serializer.data def get_image(self, obj): # Use 'obj' instead of 'user' user = obj.user if hasattr(user, 'userinformation') and user.userinformation.image: return user.userinformation.image.url return None class InstructorShortListSerializer(serializers.ModelSerializer): class Meta: model = Instructor fields = ['id', 'name'] class InstructorShortUnauthListSerializer(serializers.ModelSerializer): image = serializers.SerializerMethodField() name = serializers.SerializerMethodField() course = serializers.SerializerMethodField() class Meta: model = Instructor fields = ['id', 'name', 'image', 'course'] def get_image(self, obj): # Use 'obj' instead of 'user' user = obj.user if hasattr(user, 'userinformation') and user.userinformation.image: return user.userinformation.image.url return None def get_name(self, obj): user = obj.user return user.first_name+' '+user.last_name def get_course(self, obj): first_course = obj.course.first() # Fetch the first course return first_course.title if first_course else None class InstructorDetailsUnauthListSerializer(serializers.ModelSerializer): image = serializers.SerializerMethodField() name = serializers.SerializerMethodField() course = serializers.SerializerMethodField() course_count = serializers.SerializerMethodField() rating = serializers.SerializerMethodField() student_count = serializers.SerializerMethodField() education = serializers.SerializerMethodField() class Meta: model = Instructor fields = ['id', 'details', 'language' , 'name', 'image', 'course', 'student_count', 'course_count', 'rating', 'education'] def get_image(self, obj): # Use 'obj' instead of 'user' user = obj.user if hasattr(user, 'userinformation') and user.userinformation.image: return user.userinformation.image.url return None def get_name(self, obj): user = obj.user return user.first_name+' '+user.last_name def get_course(self, obj): courses = obj.course.all() # Fetch all courses associated with the instructor if courses.exists(): return [ { "title": course.title, "details": course.details, "image": course.image.url if course.image else None, "ageGroup": course.age_group, "price": course.country_fees, } for course in courses ] return None def get_course_count(self, obj): return obj.course.count() def get_student_count(self, obj): return obj.user_course.values_list('user', flat=True).distinct().count() def get_rating(self, obj): # Fetch all testimonials related to this instructor ratings = obj.course_instructor.all() if ratings.exists(): return [ { "user_name": f"{rating.user.first_name} {rating.user.last_name}" if rating.user else None, "image": rating.user.userinformation.image.url if rating.user and rating.user.userinformation and rating.user.userinformation.image else None, "rating": rating.rating, "comments": rating.testimonial, } for rating in ratings ] return None def get_education(self, obj): education_records = obj.instructor_educations.filter(is_publish=True) if education_records.exists(): return [ { "id": edu.id, "degree": edu.degree, "university_name": edu.university_name, "university_city": edu.university_city, "university_country": edu.university_country, "session_start": edu.session_start.strftime("%Y-%m-%d") if edu.session_start else None, "session_end": edu.session_end.strftime("%Y-%m-%d") if edu.session_end else None, "degree_details": edu.degree_details, "is_publish": edu.is_publish, } for edu in education_records ] return None # No education records found class InstructorTimeSerializer(serializers.ModelSerializer): instructor_name = serializers.SerializerMethodField() time = serializers.TimeField(format='%I:%M %p', input_formats=['%H:%M','%H:%M:%S']) class Meta: model = InstructorTime fields = ['id', 'time', 'day', 'booked_status', 'instructor', 'instructor_name'] def get_instructor_name(self, obj): return obj.instructor.name class InstructorHoldWeekSerializer(serializers.ModelSerializer): class Meta: model = InstructorHoldWeek fields = ['id', 'instructor', 'course', 'week'] depth = 1 class InstructorDocumentsSerializer(serializers.ModelSerializer): class Meta: model = InstructorDocuments fields = '__all__' class InstructorDocumentsPostSerializer(serializers.ModelSerializer): class Meta: model = InstructorDocuments fields = ['id', 'title', 'instructor', 'source_type', 'file'] class InstructorEducationSerializer(serializers.ModelSerializer): education_completion = serializers.SerializerMethodField() degree = serializers.CharField(required=True, max_length=500, allow_blank=False, allow_null=False) university_name = serializers.CharField(required=True, max_length=500, allow_blank=False, allow_null=False) university_city = serializers.CharField(required=True, max_length=150, allow_blank=False, allow_null=False) university_country = serializers.CharField(required=True, max_length=200, allow_blank=False, allow_null=False) session_start = serializers.DateField() session_end = serializers.DateField() degree_details = serializers.CharField(required=True, max_length=500, allow_blank=False, allow_null=False) class Meta: model = InstructorEducation fields = [ 'id', 'degree', 'university_name', 'university_city', 'university_country', 'session_start', 'session_end', 'degree_details', 'is_publish', 'instructor', 'education_completion' ] def get_education_completion(self, obj): return self.context.get('education_completion', None) def validate(self, data): # Validate session dates if data.get('session_start') and data.get('session_end') and data['session_start'] > data['session_end']: raise serializers.ValidationError("Session end date must be after the start date.") return data