Item9464: Improve capabilities of SEARCH $changes parameter

In Formatted Search

$changes(n)      Summary of changes between latest rev and rev n 

That's not as helpful as it might be. I rarely know what n should be. I'm more likely to want to see changes between latest and 2 back, or 3 back...

I'd like to see support added for this, perhaps

$changes(n)      Summary of changes between latest rev and rev n; 
                 if n is a negative number, show summary of changes between latest
                 rev and "n" revisions ago.

So if I say $changes(-2) and latest is rev 19, show changes between 19 and 17; if latest is 5, changes between 5 and 3, and so on.

That would let me do this:

%SEARCH{".*"  type="regex" nosearch="on" noheader="on" 
   newline="%BR%" order="modified" limit="20" reverse="on" 
   format="| [[$web.$topic][$topic]] | r $rev | $date -- $wikiname | $changes | $changes(-2) | "}%

-- VickiBrown - 12 Aug 2010

Excellent point. It seems like a trivial enhancement, but it probably needs a feature proposal.

Set as enhancement

For what it's worth, this horrible monster could be a work-around:

%STARTSECTION{"search"}%
%SEARCH{"1"
   type="query"
   nonoise="on"
   newline="%BR%"
   order="modified"
   limit="20"
   reverse="on" 
   format="| [[$web.$topic][$topic]] | r $rev | $date -- $wikiname | $changes | Since rev($percntINCLUDE{      \"%TOPIC%\"      section=\"rev\"      web=\"$web\"      topic=\"$topic\"      n=\"-2\"   }$percnt): $changes($percntINCLUDE{      \"%TOPIC%\"      section=\"rev\"      web=\"$web\"      topic=\"$topic\"      n=\"-2\"   }$percnt) | Since rev(5): $changes(5) |"}%
%ENDSECTION{"search"}%

%STARTSECTION{"rev"}%%CALC{"$SUM(%REVINFO{
   "$rev"
   web="%web%"
   topic="%topic%"
}% , %n%)"}%%ENDSECTION{"rev"}%

Test

WebNotify	r 177	24 Mar 2023 - 23:05 -- UnknownUser	* BobKrzaczek: Item614 - * BramVanOosterhout: Item1087 Item1099 Item12553 Item12554 It... + * BramVanOosterhout: Item1087 Item1099 Item12553 Item12554 It... * BrendanB: Item8533 * ChipsInChief: Item13873 + * ChrUllrich: Item15167	Since rev(175): * BobKrzaczek: Item614 - * BramVanOosterhout: Item1087 Item1099 Item12553 Item12554 It... + * BramVanOosterhout: Item1087 Item1099 Item12553 Item12554 It... * BrendanB: Item8533 * ChipsInChief: Item13873 + * ChrUllrich: Item15167	Since rev(5): Tasks.WebNotify -MAKETEXT{"This is a subscription service to be automatically notified... +This topic is automatically generated by a script running on the serv... +script analyses all the 'WaitingFor' and 'ReportedBy' fields in repor... +generates this WebNotify. - * Main.TWikiGuest example #64;your.company
WebStatistics	r 1782	24 Mar 2023 - 01:58 -- AdminUser	}% - Mar 2023 139155 23 0 8558 WebCreateNewTopic 2167 We... + Mar 2023 147330 23 0 8950 WebCreateNewTopic 2265 We... Feb 2023 371387 50 0 26773 WebCreateNewTopic 3001 W...	Since rev(1780): Tasks.WebStatistics %IF{ "istopic '.Default'" then="$percentINCLUDE{$quot.Default$quot}$percent" else="$percentINCLUDE{$quot.Default$quot}$percent" }% ...	Since rev(5): }% - Jan 2018 94759 150 1 3149 WebHome 653 ItemSummaryQu... + Mar 2023 147330 23 0 8950 WebCreateNewTopic 2265 We... + Feb 2023 371387 50 0 26773 WebCreateNewTopic 3001 W... + Jan 2023 297046 95 0 17298 WebCreateNewTopic 3118 W... + Dec 2022 292276 1 0 11069 WebCreateNewTopic 3071 We...
Item13883	r 230	15 Mar 2023 - 10:15 -- MichaelDaum	%META:FIELD{name="WaitingFor" title="WaitingFor" value=""}% -%META:FIELD{name="Checkins" value="%25GITREF%7bdistro:a628fb3a133f%7d... +%META:FIELD{name="Checkins" value="%25GITREF%7bdistro:a628fb3a133f%7d... %META:FIELD{name="TargetRelease" title="TargetRelease" value="minor"}... %META:FIELD{name="trunkCheckins" title="trunkCheckins" value=""}% -%META:FIELD{name="masterCheckins" value="%25GITREF%7bdistro:c994933c2...	Since rev(228): Tasks.Item13883	Since rev(5): Tasks.Item13883 - Main.GeorgeClark 03 Dec 2015 - %COMMENT% %META:FIELD{name="WaitingFor" title="WaitingFor" value=""}% -%META:FIELD{name="Checkins" value="%25GITREF%7bdistro:a628fb3a133f%7d...
Item15187	r 1	15 Mar 2023 - 10:08 -- MichaelDaum	Tasks.Item15187 You type / copy paste from an email: quoted text quoted text quoted text You get: ' quoted text ' quoted text ' quoted text Should be...	Since rev(-1): Tasks.Item15187 You type / copy paste from an email: quoted text quoted text quoted text You get: ' quoted text ' quoted text ' quoted text Should be...	Since rev(5): Tasks.Item15187 You type / copy paste from an email: quoted text quoted text quoted text You get: ' quoted text ' quoted text ' quoted text Should be...
Item14580	r 4	15 Mar 2023 - 10:02 -- MichaelDaum	Main.MichaelDaum 15 Dec 2017 + +WTF: this never was committed to the core. Rescheduling it for 2.1.8 + %USERSWEB%.MichaelDaum 15 Mar 2023 %COMMENT% %META:FORM{name="ItemTemplate"}% -%META:FIELD{name="Summary" title="Summary" value="DIFF_TEXT never use...	Since rev(2): Tasks.Item14580 In mailnotify, DIFF_TEXT, albeit documented, is never used, probably for a good reason: it inserts verbatim tags but does not process them afterw...	Since rev(5): Tasks.Item14580 In mailnotify, DIFF_TEXT, albeit documented, is never used, probably for a good reason: it inserts verbatim tags but does not process them afterw...
Item15186	r 2	06 Mar 2023 - 15:49 -- MichaelDaum	%META:FORM{name="ItemTemplate"}% -%META:FIELD{name="Summary" title="Summary" value="random failures of ... +%META:FIELD{name="Summary" title="Summary" value="random unit test fa... %META:FIELD{name="ReportedBy" title="ReportedBy" value="Main.MichaelD... %META:FIELD{name="WaitingFor" title="WaitingFor" value=""}% -%META:FIELD{name="Checkins" title="Checkins" value="%25GITREF%7bdistr...	Since rev(0): Tasks.Item15186 Unit tests randomly fail as can be seen in the foswiki commits mailing list. Running the same tests on my own machine don't fail. So these tests ...	Since rev(5): Tasks.Item15186 Unit tests randomly fail as can be seen in the foswiki commits mailing list. Running the same tests on my own machine don't fail. So these tests ...
Item14380	r 22	28 Feb 2023 - 13:00 -- MichaelDaum	%META:FIELD{name="WaitingFor" title="WaitingFor" value=""}% -%META:FIELD{name="Checkins" title="Checkins" value="%25GITREF%7bdistr... +%META:FIELD{name="Checkins" title="Checkins" value="%25GITREF%7bdistr... %META:FIELD{name="TargetRelease" title="TargetRelease" value="patch"}... %META:FIELD{name="trunkCheckins" title="trunkCheckins" value=""}% -%META:FIELD{name="masterCheckins" title="masterCheckins" value="%25GI...	Since rev(20): Tasks.Item14380 In proxy configurations, the Foswiki events log will only contain the proxy server's IP address, anonymizing the clients. The X Forwarded For hea...	Since rev(5): %USERSWEB%.GeorgeClark 27 Nov 2017 + +This feature is waiting for a release since when? Will backport it to... +is implemented using two boolean flags UseForwardedFor and UseForwa... +is gone. Basically we only need one of the three: UseForwardedHeaders... +
Item15185	r 1	27 Feb 2023 - 15:49 -- MichaelDaum	Tasks.Item15185 Unit tests checked agains $main as_string(). However this can result in arbitrary linebreaks at points the unit test don't match reliably. That'...	Since rev(-1): Tasks.Item15185 Unit tests checked agains $main as_string(). However this can result in arbitrary linebreaks at points the unit test don't match reliably. That'...	Since rev(5): Tasks.Item15185 Unit tests checked agains $main as_string(). However this can result in arbitrary linebreaks at points the unit test don't match reliably. That'...
Item15184	r 1	27 Feb 2023 - 14:56 -- MichaelDaum	Tasks.Item15184 This breaks typographics in some places. Best is to leave them unchanged when translating HTML between TML. Main.MichaelDaum 27 Feb 2023	Since rev(-1): Tasks.Item15184 This breaks typographics in some places. Best is to leave them unchanged when translating HTML between TML. Main.MichaelDaum 27 Feb 2023	Since rev(5): Tasks.Item15184 This breaks typographics in some places. Best is to leave them unchanged when translating HTML between TML. Main.MichaelDaum 27 Feb 2023
Item15183	r 1	27 Feb 2023 - 12:15 -- MichaelDaum	Tasks.Item15183 It switched from 3.330 to 3.40 ... which makes UpdatesPlugin think that the former is newer than the latter. Main.MichaelDaum 27 Feb 2023	Since rev(-1): Tasks.Item15183 It switched from 3.330 to 3.40 ... which makes UpdatesPlugin think that the former is newer than the latter. Main.MichaelDaum 27 Feb 2023	Since rev(5): Tasks.Item15183 It switched from 3.330 to 3.40 ... which makes UpdatesPlugin think that the former is newer than the latter. Main.MichaelDaum 27 Feb 2023
FixesReleaseNotesTml	r 13	06 Feb 2023 - 11:54 -- MichaelDaum	Tasks.FixesReleaseNotesTml Release Notes This page lists items waiting for release in the next n/a patch minor major Security %SEARCH{ "( CurrentSt...	Since rev(11): Tasks.FixesReleaseNotesTml Release Notes This page lists items waiting for release in the next n/a patch minor major Security %SEARCH{ "( CurrentSt...	Since rev(5): This page lists items waiting for release in the next -URLPARAM{"type" default="n/a"} - n/a major -release.
Item15178	r 2	06 Feb 2023 - 11:44 -- MichaelDaum	%META:FIELD{name="WaitingFor" title="WaitingFor" value=""}% -%META:FIELD{name="Checkins" title="Checkins" value="%25GITREF%7bdistr... +%META:FIELD{name="Checkins" title="Checkins" value="%25GITREF%7bdistr... %META:FIELD{name="TargetRelease" title="TargetRelease" value="patch"}... %META:FIELD{name="ReleasedIn" title="ReleasedIn" value="2.1.8"}% -%META:FIELD{name="CheckinsOnBranches" title="CheckinsOnBranches" valu...	Since rev(0): Tasks.Item15178 If there are restricted allow rights in WebPreferences, these have to be overwritten as well. Main.MichaelDaum 17 Jan 2023	Since rev(5): Tasks.Item15178 If there are restricted allow rights in WebPreferences, these have to be overwritten as well. Main.MichaelDaum 17 Jan 2023
Jpegcompressor	r 1	24 Jan 2023 - 10:09 -- RsnehaRani	Tasks.Jpegcompressor Jpeg compressoris the best tool for shrinking the file size of a JPEG image. JPEG images frequently include large amounts of data, which mak...	Since rev(-1): Tasks.Jpegcompressor Jpeg compressoris the best tool for shrinking the file size of a JPEG image. JPEG images frequently include large amounts of data, which mak...	Since rev(5): Tasks.Jpegcompressor Jpeg compressoris the best tool for shrinking the file size of a JPEG image. JPEG images frequently include large amounts of data, which mak...
Item15181	r 1	19 Jan 2023 - 15:00 -- MichaelDaum	Tasks.Item15181 Main.MichaelDaum 19 Jan 2023	Since rev(-1): Tasks.Item15181 Main.MichaelDaum 19 Jan 2023	Since rev(5): Tasks.Item15181 Main.MichaelDaum 19 Jan 2023
Item15035	r 4	19 Jan 2023 - 07:59 -- MichaelDaum	%USERSWEB%.MichaelDaum 18 Jan 2023 + +Compilation fails. Will have to revert this pull. Error message is: + +Foswiki::Plugins::EditRowPlugin could not be loaded. Errors were: #2... +	Since rev(2): Tasks.Item15035 A little feature that we use on our local wiki. Extends the EditRowPlugin. Allows to copy cells of source row, when new row is added, instead of ...	Since rev(5): Tasks.Item15035 A little feature that we use on our local wiki. Extends the EditRowPlugin. Allows to copy cells of source row, when new row is added, instead of ...
Item15173	r 2	18 Jan 2023 - 07:42 -- MichaelDaum	%META:FIELD{name="WaitingFor" title="WaitingFor" value=""}% -%META:FIELD{name="Checkins" title="Checkins" value="%25GITREF%7bdistr... +%META:FIELD{name="Checkins" title="Checkins" value="%25GITREF%7bdistr... %META:FIELD{name="TargetRelease" title="TargetRelease" value="patch"}... %META:FIELD{name="trunkCheckins" title="trunkCheckins" value=""}% -%META:FIELD{name="masterCheckins" title="masterCheckins" value="%25GI...	Since rev(0): Tasks.Item15173 This is a new security feature. See https://developer.mozilla.org/en US/docs/Web/HTTP/Headers/Set Cookie/SameSite Main.MichaelDaum 17 Jan 202...	Since rev(5): Tasks.Item15173 This is a new security feature. See https://developer.mozilla.org/en US/docs/Web/HTTP/Headers/Set Cookie/SameSite Main.MichaelDaum 17 Jan 202...
Item15180	r 2	18 Jan 2023 - 07:38 -- MichaelDaum	%META:FIELD{name="WaitingFor" title="WaitingFor" value=""}% -%META:FIELD{name="Checkins" title="Checkins" value="%25GITREF%7bdistr... +%META:FIELD{name="Checkins" title="Checkins" value="%25GITREF%7bdistr... %META:FIELD{name="TargetRelease" title="TargetRelease" value="patch"}... %META:FIELD{name="trunkCheckins" title="trunkCheckins" value=""}% -%META:FIELD{name="masterCheckins" title="masterCheckins" value="%25GI...	Since rev(0): Tasks.Item15180 There is code that prohibits any topic or web url parameter to a jsonrpc link with no good reason. In fact this breaks a couple of wiki apps out ...	Since rev(5): Tasks.Item15180 There is code that prohibits any topic or web url parameter to a jsonrpc link with no good reason. In fact this breaks a couple of wiki apps out ...
Item15179	r 1	17 Jan 2023 - 11:56 -- MichaelDaum	Tasks.Item15179 ... even if only one language is enabled. Otherwise some features in maketext will be broken, such as sprintf and num. Main.MichaelDaum 17 Ja...	Since rev(-1): Tasks.Item15179 ... even if only one language is enabled. Otherwise some features in maketext will be broken, such as sprintf and num. Main.MichaelDaum 17 Ja...	Since rev(5): Tasks.Item15179 ... even if only one language is enabled. Otherwise some features in maketext will be broken, such as sprintf and num. Main.MichaelDaum 17 Ja...
Item15177	r 1	17 Jan 2023 - 11:41 -- MichaelDaum	Tasks.Item15177 This will add a lot more flexibility and lets skins jquery.ui be styled in a uniform fassion using css variables. See https://developer.mozilla...	Since rev(-1): Tasks.Item15177 This will add a lot more flexibility and lets skins jquery.ui be styled in a uniform fassion using css variables. See https://developer.mozilla...	Since rev(5): Tasks.Item15177 This will add a lot more flexibility and lets skins jquery.ui be styled in a uniform fassion using css variables. See https://developer.mozilla...
Item15176	r 1	17 Jan 2023 - 11:30 -- MichaelDaum	Tasks.Item15176 Main.MichaelDaum 17 Jan 2023	Since rev(-1): Tasks.Item15176 Main.MichaelDaum 17 Jan 2023	Since rev(5): Tasks.Item15176 Main.MichaelDaum 17 Jan 2023

Rev test

1780

-- PaulHarvey - 13 Aug 2010

I'm not sure that "horrible monster" is doing what you think. The results are similar to what I got using CALC. No + or - anywhere in the output is suspicious. I don't think it's actually a diff.

-- VickiBrown - 13 Aug 2010

I don't quite agree - the $percentINCLUDE is correctly calculating the rev number -2 - however I would agree that the $changes() token isn't very useful in its output; probably, that's a bug

-- PaulHarvey - 14 Aug 2010

Okay, now it should be fixed (the example, that is)

-- PaulHarvey - 17 Aug 2010

I've raised Item9502 for the crash this example causes on 1.1 - separate from the issues that Vicki raises.

-- SvenDowideit - 19 Aug 2010

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