feat: implement global search functionality for adventures, collections, users, and locations

backend/server/adventures/managers.py

@@ -0,0 +1,22 @@
+from django.db import models
+from django.db.models import Q
+
+class AdventureManager(models.Manager):
+    def retrieve_adventures(self, user, include_owned=False, include_shared=False, include_public=False):
+        # Initialize the query with an empty Q object
+        query = Q()
+
+        # Add owned adventures to the query if included
+        if include_owned:
+            query |= Q(user_id=user.id)
+
+        # Add shared adventures to the query if included
+        if include_shared:
+            query |= Q(collection__shared_with=user.id)
+
+        # Add public adventures to the query if included
+        if include_public:
+            query |= Q(is_public=True)
+
+        # Perform the query with the final Q object and remove duplicates
+        return self.filter(query).distinct()