Joey Hess caa97d1271 Each for each metadata field, there's now an automatically maintained "$field-lastchanged" that gives the timestamp of the last change to that field. ... Note that this is a nearly entirely free feature. The data was already stored in the metadata log in an easily accessible way, and already was parsed to a time when parsing the log. The generation of the metadata fields may even be done lazily, although probably not entirely (the map has to be evaulated to when queried).		2014-03-18 18:55:43 -04:00
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StandardFields.hs	Each for each metadata field, there's now an automatically maintained "$field-lastchanged" that gives the timestamp of the last change to that field.	2014-03-18 18:55:43 -04:00