string or list for camera groups (#11616)

frigate/config.py

@@ -1171,12 +1171,20 @@ class LoggerConfig(FrigateBaseModel):
 class CameraGroupConfig(FrigateBaseModel):
     """Represents a group of cameras."""
 
-    cameras: list[str] = Field(
+    cameras: Union[str, List[str]] = Field(
         default_factory=list, title="List of cameras in this group."
     )
     icon: str = Field(default="generic", title="Icon that represents camera group.")
     order: int = Field(default=0, title="Sort order for group.")
 
+    @field_validator("cameras", mode="before")
+    @classmethod
+    def validate_cameras(cls, v):
+        if isinstance(v, str) and "," not in v:
+            return [v]
+
+        return v
+
 
 def verify_config_roles(camera_config: CameraConfig) -> None:
     """Verify that roles are setup in the config correctly."""

web/src/components/filter/CameraGroupSelector.tsx

@@ -555,9 +555,7 @@ export function CameraGroupEdit({
         message: "Invalid camera group name.",
       }),
 
-    cameras: z.array(z.string()).min(2, {
-      message: "You must select at least two cameras.",
-    }),
+    cameras: z.array(z.string()),
     icon: z
       .string()
       .min(1, { message: "You must select an icon." })