refactor: Rename launch_type to propulsion_system across the codebase

backend/apps/rides/services/hybrid_loader.py

@@ -290,8 +290,8 @@ class SmartRideLoader:
         if 'track_material' in filters and filters['track_material']:
             q_objects &= Q(coaster_stats__track_material__in=filters['track_material'])
         
-        if 'launch_type' in filters and filters['launch_type']:
-            q_objects &= Q(coaster_stats__launch_type__in=filters['launch_type'])
+        if 'propulsion_system' in filters and filters['propulsion_system']:
+            q_objects &= Q(coaster_stats__propulsion_system__in=filters['propulsion_system'])
         
         # Roller coaster height filters
         if 'min_height_ft' in filters and filters['min_height_ft']:
@@ -429,7 +429,7 @@ class SmartRideLoader:
                     'track_material': stats.track_material,
                     'roller_coaster_type': stats.roller_coaster_type,
                     'max_drop_height_ft': float(stats.max_drop_height_ft) if stats.max_drop_height_ft else None,
-                    'launch_type': stats.launch_type,
+                    'propulsion_system': stats.propulsion_system,
                     'train_style': stats.train_style,
                     'trains_count': stats.trains_count,
                     'cars_per_train': stats.cars_per_train,
@@ -495,9 +495,9 @@ class SmartRideLoader:
             count=models.Count('ride')
         ).exclude(track_material__isnull=True).order_by('track_material'))
         
-        launch_types_data = list(RollerCoasterStats.objects.values('launch_type').annotate(
+        propulsion_systems_data = list(RollerCoasterStats.objects.values('propulsion_system').annotate(
             count=models.Count('ride')
-        ).exclude(launch_type__isnull=True).order_by('launch_type'))
+        ).exclude(propulsion_system__isnull=True).order_by('propulsion_system'))
         
         # Convert to frontend-expected format with value/label/count
         categories = [
@@ -536,13 +536,13 @@ class SmartRideLoader:
             for item in track_materials_data
         ]
         
-        launch_types = [
+        propulsion_systems = [
             {
-                'value': item['launch_type'],
-                'label': self._get_launch_type_label(item['launch_type']),
+                'value': item['propulsion_system'],
+                'label': self._get_propulsion_system_label(item['propulsion_system']),
                 'count': item['count']
             }
-            for item in launch_types_data
+            for item in propulsion_systems_data
         ]
         
         # Convert other data to expected format
@@ -633,7 +633,7 @@ class SmartRideLoader:
                 'statuses': statuses,
                 'roller_coaster_types': roller_coaster_types,
                 'track_materials': track_materials,
-                'launch_types': launch_types,
+                'propulsion_systems': propulsion_systems,
                 'parks': parks,
                 'park_areas': park_areas,
                 'manufacturers': manufacturers,
@@ -746,6 +746,7 @@ class SmartRideLoader:
             'BOBSLED': 'Bobsled',
             'PIPELINE': 'Pipeline',
             'FOURTH_DIMENSION': '4th Dimension',
+            'FAMILY': 'Family',
         }
         if rc_type in rc_type_labels:
             return rc_type_labels[rc_type]
@@ -764,9 +765,9 @@ class SmartRideLoader:
         else:
             raise ValueError(f"Unknown track material: {material}")
     
-    def _get_launch_type_label(self, launch_type: str) -> str:
-        """Convert launch type to human-readable label."""
-        launch_labels = {
+    def _get_propulsion_system_label(self, propulsion_system: str) -> str:
+        """Convert propulsion system to human-readable label."""
+        propulsion_labels = {
             'CHAIN': 'Chain Lift',
             'LSM': 'Linear Synchronous Motor',
             'LIM': 'Linear Induction Motor',
@@ -774,9 +775,10 @@ class SmartRideLoader:
             'PNEUMATIC': 'Pneumatic Launch',
             'CABLE': 'Cable Lift',
             'FLYWHEEL': 'Flywheel Launch',
-            'NONE': 'No Launch System',
+            'GRAVITY': 'Gravity',
+            'NONE': 'No Propulsion System',
         }
-        if launch_type in launch_labels:
-            return launch_labels[launch_type]
+        if propulsion_system in propulsion_labels:
+            return propulsion_labels[propulsion_system]
         else:
-            raise ValueError(f"Unknown launch type: {launch_type}")
+            raise ValueError(f"Unknown propulsion system: {propulsion_system}")

backend/apps/rides/services/search.py

@@ -60,7 +60,7 @@ class RideSearchService:
             "inversions_range",
             "track_material",
             "coaster_type",
-            "launch_type",
+            "propulsion_system",
         ],
         "company": ["manufacturer_roles", "designer_roles", "founded_date_range"],
     }
@@ -434,14 +434,14 @@ class RideSearchService:
                 rollercoasterstats__roller_coaster_type__in=types
             )
 
-        # Launch type filter (multi-select)
-        if filters.get("launch_type"):
-            launch_types = (
-                filters["launch_type"]
-                if isinstance(filters["launch_type"], list)
-                else [filters["launch_type"]]
+        # Propulsion system filter (multi-select)
+        if filters.get("propulsion_system"):
+            propulsion_systems = (
+                filters["propulsion_system"]
+                if isinstance(filters["propulsion_system"], list)
+                else [filters["propulsion_system"]]
             )
-            queryset = queryset.filter(rollercoasterstats__launch_type__in=launch_types)
+            queryset = queryset.filter(rollercoasterstats__propulsion_system__in=propulsion_systems)
 
         return queryset
 
@@ -589,7 +589,7 @@ class RideSearchService:
             "inversions_range": "Inversions",
             "track_material": "Track Material",
             "coaster_type": "Coaster Type",
-            "launch_type": "Launch Type",
+            "propulsion_system": "Propulsion System",
             "manufacturer_roles": "Manufacturer Roles",
             "designer_roles": "Designer Roles",
             "founded_date_range": "Founded Date",