Add link field to collection and fix the visited counter in collection page

backend/server/adventures/migrations/0010_collection_link.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.0.8 on 2024-10-08 03:05
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('adventures', '0009_alter_adventure_type'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='collection',
+            name='link',
+            field=models.URLField(blank=True, max_length=2083, null=True),
+        ),
+    ]

backend/server/adventures/models.py

@@ -117,6 +117,7 @@ class Collection(models.Model):
     updated_at = models.DateTimeField(auto_now=True)
     is_archived = models.BooleanField(default=False)
     shared_with = models.ManyToManyField(User, related_name='shared_with', blank=True)
+    link = models.URLField(blank=True, null=True, max_length=2083)
 
 
     # if connected adventures are private and collection is public, raise an error

backend/server/adventures/serializers.py

@@ -176,8 +176,7 @@ class CollectionSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Collection
-        # fields are all plus the adventures field
-        fields = ['id', 'description', 'user_id', 'name', 'is_public', 'adventures', 'created_at', 'start_date', 'end_date', 'transportations', 'notes', 'updated_at', 'checklists', 'is_archived', 'shared_with']
+        fields = ['id', 'description', 'user_id', 'name', 'is_public', 'adventures', 'created_at', 'start_date', 'end_date', 'transportations', 'notes', 'updated_at', 'checklists', 'is_archived', 'shared_with', 'link']
         read_only_fields = ['id', 'created_at', 'updated_at', 'user_id']
 
     def to_representation(self, instance):