JobWithModelPropertyDeclaresSerializesModelsRule

A queued job (one implementing ShouldQueue) that holds an Eloquent model in a property must use the SerializesModels trait.

A queued job is serialized to the queue store at dispatch and unserialized in the worker. Without SerializesModels an Eloquent model property is serialized whole: the full attribute set, loaded relations and casts go onto the wire, bloating the payload, and the job runs against a frozen snapshot taken at dispatch time, so any change made between dispatch and execution is silently lost. SerializesModels instead stores just the class name and primary key (plus the loaded relation names) and re-resolves the model fresh from the database when the job runs, keeping the payload small and the data current. A model deleted in the meantime then surfaces as a ModelNotFoundException instead of the job operating on stale data.

Unlike upstream, which checks only public properties, every non-static property counts, including a parent's private ones, because PHP serializes them all. Properties typed against a model or an Eloquent collection (including nullable unions) count, as SerializesModels converts both. An inherited SerializesModels (used by the class, a parent, or another trait) satisfies the rule, and a job with its own __serialize() decides its payload itself.