from rest_framework import serializers from developer.models import Developer from rest_framework import serializers from rest_framework.pagination import PageNumberPagination from django.db.models import Q from math import ceil from .models import Developer, DeveloperTranslate class DeveloperSerializer(serializers.ModelSerializer): class Meta: model = Developer fields = ["name", "slug"] from rest_framework import serializers from .models import Developer, DeveloperTranslate # from development.serializers import DevelopmentSerializer class AggregateRatingSerializer(serializers.Serializer): type = serializers.CharField(default='AggregateRating') rating_value = serializers.CharField(default='10') best_rating = serializers.CharField(default='10') rating_count = serializers.CharField() class MetaTagsSerializer(serializers.Serializer): title = serializers.CharField() description = serializers.CharField() keywords = serializers.CharField() og_title = serializers.CharField() og_description = serializers.CharField() og_image = serializers.CharField() og_type = serializers.CharField() twitter_card = serializers.CharField() twitter_title = serializers.CharField() twitter_description = serializers.CharField() twitter_image = serializers.CharField() canonical_url = serializers.CharField() class DeveloperTranslateSerializer(serializers.ModelSerializer): web_address = serializers.CharField() rate = serializers.IntegerField() property_num = serializers.IntegerField() is_featured = serializers.BooleanField() image = serializers.CharField() micro_data = serializers.JSONField() meta_tags = MetaTagsSerializer() # developments = DevelopmentSerializer(many=True, read_only=True) class Meta: model = DeveloperTranslate fields = ['id', 'name', 'slug', 'property_num', 'web_address', 'is_featured', 'summary', 'description', 'image', 'rate', 'created_at', 'developments', 'micro_data', 'meta_tags'] class FilterDeveloperSerializer(serializers.Serializer): node = DeveloperTranslateSerializer(many=True) page_info = serializers.JSONField() micro_data = serializers.JSONField() meta_tags = MetaTagsSerializer() class DeveloperPagination(PageNumberPagination): page_size = 10 page_size_query_param = 'page_size' max_page_size = 50 class MetaTagsSerializer(serializers.Serializer): """SEO Meta Tags Serializer""" title = serializers.CharField() description = serializers.CharField() keywords = serializers.CharField() og_title = serializers.CharField() og_description = serializers.CharField() og_image = serializers.CharField() og_type = serializers.CharField() twitter_card = serializers.CharField() twitter_title = serializers.CharField() twitter_description = serializers.CharField() twitter_image = serializers.CharField() canonical_url = serializers.CharField() class AggregateRatingSerializer(serializers.Serializer): type = serializers.CharField(default="AggregateRating") rating_value = serializers.CharField(default="10") best_rating = serializers.CharField(default="10") ratingCount = serializers.CharField() def to_representation(self, instance): data = super().to_representation(instance) data['rating_value'] = f"{instance.developer.rate}" data['ratingCount'] = f"{instance.developer.developments.filter(is_active=True, is_deleted=False).count()}" return data class DeveloperMicroDataSerializer(serializers.Serializer): type = serializers.CharField(default="Organization") name = serializers.CharField() description = serializers.CharField() url = serializers.CharField() image = serializers.CharField() aggregate_rating = AggregateRatingSerializer() def to_representation(self, instance): data = super().to_representation(instance) data['name'] = instance.developer.name data['description'] = instance.summary data['url'] = instance.developer.web_address data['image'] = f"https://file.entralon.com/{instance.developer.image}" data['aggregate_rating'] = AggregateRatingSerializer(instance).data return data class DevelopmentSerializer(serializers.Serializer): node = serializers.ListField() page_info = serializers.DictField() class DeveloperTranslateSerializer(serializers.ModelSerializer): web_address = serializers.CharField(source='developer.web_address') rate = serializers.IntegerField(source='developer.rate') property_num = serializers.SerializerMethodField() is_featured = serializers.BooleanField(source='developer.is_featured') image = serializers.SerializerMethodField() micro_data = serializers.SerializerMethodField() meta_tags = serializers.SerializerMethodField() development = serializers.SerializerMethodField() class Meta: model = DeveloperTranslate fields = ["id", "name", "slug", 'property_num', "web_address", 'is_featured', 'summary', 'description', "image", "rate", "created_at", "development"] def get_property_num(self, obj): return obj.developer.developments.filter(is_active=True, is_deleted=False).count() def get_image(self, obj): try: return obj.developer.image except: return "" def get_micro_data(self, obj): return { "@context": "https://schema.org", "@type": "Organization", "name": obj.developer.name, "url": f"https://entralon.com/en/developers/developer-{obj.slug}", "logo": f"https://file.entralon.com/{obj.developer.image}", "address": { "@type": "PostalAddress", # "streetAddress": "Office 42, London Tower", "addressLocality": obj.developer.city.name if obj.developer.city else "", "addressCountry": obj.developer.country.code if obj.developer.country else "", }, # "contactPoint": { # "@type": "ContactPoint", # "telephone": "+44 20 5678 1234", # "contactType": "sales" # } } def get_meta_tags(self, obj): keywords = f"{obj.developer.name}, {obj.name}, developer, home builder, real estate" base_url = "https://entralon.com" canonical = f"{base_url}/{obj.language.code}/developers/{obj.developer.slug}" title = obj.developer.name summary = obj.summary[:160] if obj.summary else "" image = obj.developer.image return { "title": title, "description": summary, "keywords": keywords, "og_title": title, "og_description": summary, "og_image": f"https://file.entralon.com/{image}", "og_type": "website", "twitter_card": "summary_large_image", "twitter_title": title, "twitter_description": summary, "twitter_image": f"https://file.entralon.com/{image}", "canonical_url": canonical } def get_development(self, obj): request = self.context.get('request') page = int(request.query_params.get('page', 1)) page_size = int(request.query_params.get('page_size', 10)) search = request.query_params.get('search') featured = request.query_params.get('featured') sort_by = request.query_params.get('sort_by', '-created_at') if page_size > 20: page_size = 20 f = Q(development__is_active=True) & Q(development__is_deleted=False) if featured is not None: f &= Q(development__is_featured=featured) if search is not None and search != "": f &= Q(development__title__icontains=search) | Q( development__translates__title__icontains=search) qs = obj.development_translate.filter(f).order_by( "development__is_sold_out", "development__completed_date", sort_by) qs = qs.distinct() count = qs.count() pages_count = ceil(count / page_size) if page > pages_count: page = pages_count if page < 1: page = 1 start = 0 + (page - 1) * page_size end = start + page_size has_next_page = end < count return { "node": qs[start:end], "page_info": { "has_next_page": has_next_page, "has_previous_page": page > 1, "current_page": page, "page_size": page_size, "count": count, "pages_count": pages_count, } } def to_representation(self, instance): data = super().to_representation(instance) data['id'] = instance.developer.id data['name'] = instance.developer.name data['slug'] = f"developer-{instance.developer.slug}" return data class FilterDeveloperSerializer(serializers.Serializer): node = DeveloperTranslateSerializer(many=True) page_info = serializers.DictField() micro_data = serializers.SerializerMethodField() meta_tags = MetaTagsSerializer() def get_micro_data(self, obj): item_list = [] for item in obj['node']: item_list.append({ "@type": "ListItem", "position": item.id, "url": f"https://entralon.com/{item.language.code}/developers/developer-{item.developer.slug}", "name": f"{item.developer.name}", "image": f"https://file.entralon.com/{item.developer.image}", "description": item.summary, "item": { "@context": "https://schema.org", "@type": "Organization", "name": item.developer.name, "url": f"https://entralon.com/en/developers/developer-{item.slug}", "logo": f"https://file.entralon.com/{item.developer.image}", "address": { "@type": "PostalAddress", # "streetAddress": "Office 42, London Tower", "addressLocality": item.developer.city.name if item.developer.city else "", "addressCountry": item.developer.country.code if item.developer.country else "", }, # "contactPoint": { # "@type": "ContactPoint", # "telephone": "+44 20 5678 1234", # "contactType": "sales" # } } }) micro_data = { "@context": "https://schema.org", "@type": "ItemList", "itemListElement": item_list, } return micro_data