<http://www.intertwingly.net/wiki/pie/PaceOrderCollectionsByAppModified>
== Abstract ==
Adds a new element {{{app:modified}}} to Atom Entries and spec that
collection listings are ordered by {{{app:modified}}} instead of
{{{atom:updated}}}.
== Author ==
Thomas Broyer
== Rationale ==
Being aware of ''insignificant changes'' (changes to a resource without
modification of the {{{atom:updated}}} value) is necessary for clients
with offline mode (they can't do a GET before editing an entry) to limit
conflicts (particularly on mono-user systems, and not preventing them
all) and enhance the user experience.
This hits the 80/20 mark.
== Proposal ==
In section 9, replace the second phrase with: {{{
The entries in the returned Feed MUST be ordered by their 'app:modified'
property
(Section 10.3), with the most recently modified entries coming first in the
document order.
}}}
Change section 10 introduction to {{{
This specification adds one new value to the Registry of Link Relations
and also
adds two new element to Atom Entries called "app:control" for
controlling publishing
and "app:modified". These new links and extension elements MAY appear in
both
membership lists and in member representations.
}}}
Add the following to section 10:
=== 10.3 The app:modified element ===
This specification defines a new child element of Atom Entries to carry
the instant in time when they were last modified.
{{{
pubModified =
element app:modified { atomDateConstruct }
}}}
The "app:modified" element is a Date construct as defined in [AtomFormat].
The "app:modified" element MAY appear as a child of an "atom:entry"
which is being created or updated via the Atom Publishing Protocol. The
"app:modified" element, if it does appear in an entry, MUST only appear
at most one time. When listing a collection membership, if the
"app:modified" element does not appear in an entry, implementations MUST
treat the entry as if the element were present with a value equal to the
one of the "atom:updated" element.
The "app:modified" element MAY be included in Atom Feed or Entry
Documents. The "app:modified" element is considered "foreign markup" as
defined in Section 6 of the Atom Syndication Format.
== Impacts ==
Adds a new property to Atom Entries; equivalent to the Last-Modified
HTTP header.
== Notes ==
Discussion on the atom-protocol list
[http://www.imc.org/atom-protocol/mail-archive/msg02154.html here]
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CategoryProposals
