`rattail.db.model.datasync`¶

Data Models for DataSync Daemon

class rattail.db.model.datasync.DataSyncChange(**kwargs)[source]¶

Represents a change obtained from a DataSync watcher thread, and destined for one or more DataSync consumers.

batch_id¶: ID of the “source” batch to which this change belongs, as determined by the datasync watcher.

batch_sequence¶: Sequence number for this change, within the source batch, as determined by the datasync watcher.

consumer¶: Configured key of the DataSync consumer for which this change is destined. This may be NULL, in which case the change will go to all consumers configured as not “isolated”.

deletion¶: Whether the change represents a deletion; defaults to False.

obtained¶: Date and time when the change was obtained from the watcher thread.

payload_key¶: Key for the payload (presumably unique when combined with payload_type) represented by the change, within the watched database.

payload_type¶: The “type” of payload represented by the change, e.g. ‘Person’. The payload_key should be unique for a given payload type.

source¶: Key of the watcher from which this change was obtained.