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PaceDateModified2


Abstract

This proposal introduces atom:modified as an additional Date construct to be used in entries.

Status

Draft

Author: DavidPowell

Rationale

This proposal has been written to support PaceAllowDuplicateIdsWithModified, which provides a way for publishers and re-publishers to emit multiple revisions of an entry in a feed, while still allowing consumers to locate the latest revision.

atom:modified, in this proposal, may only be used on atom:entry, not atom:feed. Requiring an additional Date construct at feed level does not seem very useful.

Proposal

Insert section 4.2.x:

4.2.x The "atom:modified" Element

The "atom:modified" element is a Date construct indicating the most
recent instant in time when an entry was modified.  Publishers MUST
change the value of this field when any data represented in the entry
has changed.

Add the bullet point to section 4.1.2:

   o  atom:entry elements MUST contain exactly one atom:modified element.

Impacts

In addition to the rationale, there are other benefits of requiring atom:modified:

The negative impacts of this proposal are limited to the overhead of transmitting an additional element. Any publisher capable of producing the mandatory atom:updated field should be capable of producing atom:modified.

Notes

This proposal is based on [WWW]draft-ietf-atompub-format-08.txt.


CategoryProposals