update

backEnd/services/serializers.py

@@ -0,0 +1,127 @@
+from rest_framework import serializers
+from .models import Service, ServiceFeature, ServiceExpertise, ServiceCategory
+from django.core.files.uploadedfile import InMemoryUploadedFile
+
+
+class ServiceFeatureSerializer(serializers.ModelSerializer):
+    """
+    Serializer for ServiceFeature model
+    """
+    class Meta:
+        model = ServiceFeature
+        fields = ['id', 'title', 'description', 'icon', 'display_order']
+
+
+class ServiceExpertiseSerializer(serializers.ModelSerializer):
+    """
+    Serializer for ServiceExpertise model
+    """
+    class Meta:
+        model = ServiceExpertise
+        fields = ['id', 'title', 'description', 'icon', 'display_order']
+
+
+class ServiceCategorySerializer(serializers.ModelSerializer):
+    """
+    Serializer for ServiceCategory model
+    """
+    class Meta:
+        model = ServiceCategory
+        fields = ['id', 'name', 'slug', 'description', 'display_order']
+
+
+class ServiceSerializer(serializers.ModelSerializer):
+    """
+    Serializer for Service model
+    """
+    features = ServiceFeatureSerializer(many=True, read_only=True)
+    expertise_items = ServiceExpertiseSerializer(many=True, read_only=True)
+    category = ServiceCategorySerializer(read_only=True)
+    formatted_price = serializers.ReadOnlyField()
+    image_url = serializers.SerializerMethodField()
+    
+    class Meta:
+        model = Service
+        fields = [
+            'id', 'title', 'description', 'short_description', 'slug', 'icon', 'image', 'image_url',
+            'price', 'formatted_price', 'category', 'duration', 'deliverables', 'technologies', 'process_steps',
+            'features_description', 'deliverables_description', 'process_description', 'why_choose_description', 'expertise_description',
+            'featured', 'display_order', 'is_active', 'created_at', 'updated_at', 'features', 'expertise_items'
+        ]
+        read_only_fields = ['id', 'created_at', 'updated_at', 'slug']
+
+    def get_image_url(self, obj):
+        """Return the image URL"""
+        return obj.get_image_url
+
+
+class ServiceListSerializer(serializers.ModelSerializer):
+    """
+    Simplified serializer for service lists
+    """
+    formatted_price = serializers.ReadOnlyField()
+    image_url = serializers.SerializerMethodField()
+    
+    class Meta:
+        model = Service
+        fields = [
+            'id', 'title', 'description', 'short_description', 'slug', 'icon', 'image', 'image_url',
+            'price', 'formatted_price', 'category', 'duration', 'deliverables', 'technologies', 
+            'process_steps', 'featured', 'display_order'
+        ]
+
+    def get_image_url(self, obj):
+        """Return the image URL"""
+        return obj.get_image_url
+
+
+class ServiceCreateUpdateSerializer(serializers.ModelSerializer):
+    """
+    Serializer for creating and updating services
+    """
+    class Meta:
+        model = Service
+        fields = [
+            'title', 'description', 'short_description', 'icon', 'image', 'image_url', 'price',
+            'category', 'duration', 'deliverables', 'technologies', 'process_steps', 'featured', 'display_order', 'is_active'
+        ]
+
+    def create(self, validated_data):
+        # Generate slug from title if not provided
+        if 'slug' not in validated_data:
+            validated_data['slug'] = self.generate_unique_slug(validated_data['title'])
+        return super().create(validated_data)
+
+    def update(self, instance, validated_data):
+        # If image is being updated, delete the old image
+        if 'image' in validated_data and instance.image:
+            instance.image.delete(save=False)
+        return super().update(instance, validated_data)
+
+    def generate_unique_slug(self, title):
+        """Generate a unique slug from title"""
+        from django.utils.text import slugify
+        base_slug = slugify(title)
+        slug = base_slug
+        counter = 1
+        
+        while Service.objects.filter(slug=slug).exists():
+            slug = f"{base_slug}-{counter}"
+            counter += 1
+            
+        return slug
+
+    def validate(self, data):
+        """Validate service data"""
+        # Make image_url optional for existing services
+        # Only require image or image_url for new services
+        if self.instance is None:  # Creating new service
+            image = data.get('image')
+            image_url = data.get('image_url')
+            
+            if not image and not image_url:
+                raise serializers.ValidationError(
+                    "Either an image file or image URL must be provided for new services."
+                )
+        
+        return data