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 175	21 Jan 2020 - 03:05 -- UnknownUser	* AnnBrady: Item1976 + * AnnaSchmidt: Item14893 * AntelmoAguilar: Item13901 * BeS: Item10883 - * BeatDoebeli: Item11190 Item12672 + * BeatDoebeli: Item11190 Item12672 Item14831	Since rev(173): * AnnBrady: Item1976 + * AnnaSchmidt: Item14893 * AntelmoAguilar: Item13901 * BeS: Item10883 - * BeatDoebeli: Item11190 Item12672 + * BeatDoebeli: Item11190 Item12672 Item14831	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 650	21 Jan 2020 - 01:59 -- AdminUser	}% - Jan 2020 250316 10 0 29051 WebCreateNewTopic 1856 W... + Jan 2020 257221 14 0 29081 WebCreateNewTopic 1964 W... Dec 2019 208100 21 1 9197 WebCreateNewTopic 2955 We...	Since rev(648): 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... + Jan 2020 257221 14 0 29081 WebCreateNewTopic 1964 W... + Dec 2019 208100 21 1 9197 WebCreateNewTopic 2955 We... + Nov 2019 315954 104 4 24983 WebCreateNewTopic 3475 ... + Oct 2019 301593 33 0 28526 WebCreateNewTopic 4021 W...
Item14884	r 2	20 Jan 2020 - 18:21 -- MichaelDaum	Main.MichaelDaum 19 Nov 2019 + +Latest change introduced a unit test error when running in tainted mo... + %USERSWEB%.MichaelDaum 20 Jan 2020 %COMMENT% %META:FIELD{name="Priority" title=" Priority " value="Urgent"}% -%META:FIELD{name="CurrentState" title="CurrentState" value="Waiting f...	Since rev(0): Tasks.Item14884 To get the list of available webs all stores have a severe performance problem: they iterate over all topics in all webs to find those subdirecto...	Since rev(5): Tasks.Item14884 To get the list of available webs all stores have a severe performance problem: they iterate over all topics in all webs to find those subdirecto...
Item14689	r 10	20 Jan 2020 - 18:00 -- MichaelDaum	%META:FIELD{name="WaitingFor" title="WaitingFor" value="MichaelDaum"} -%META:FIELD{name="Checkins" title="Checkins" value=""}% +%META:FIELD{name="Checkins" value="%25GITREF%7bdistro:ac45f860ba78%7d... %META:FIELD{name="TargetRelease" title="TargetRelease" value="patch"}... %META:FIELD{name="ReleasedIn" title="ReleasedIn" value="2.1.7"}% -%META:FIELD{name="CheckinsOnBranches" title="CheckinsOnBranches" valu...	Since rev(8): Tasks.Item14689 See https://github.com/foswiki/distro/pull/20 This is a big issue for us. Some distributions (Debian, FreeBSD) are dropping CPAN:Email::Address i...	Since rev(5): %USERSWEB%.VadimBelman 09 May 2018 + +The CVE (https://cve.mitre.org/cgi bin/cvename.cgi?name=CVE 2015 7686... + +The issue, or what has changed, is that the Email::Address Perl modul... +
Item14629	r 8	20 Jan 2020 - 17:23 -- MichaelDaum	-Tasks.Item14629 +Tasks.Item14629 +The TopicUserMappingContrib attempts to load the UserRegistration pag... + +The exposure is that the Users web is typically not write protected f... +	Since rev(6): Tasks.Item14629 The TopicUserMappingContrib attempts to load the UserRegistration page from the Users web (typically Main web), and if that fails, it loads the S...	Since rev(5): -Tasks.Item14629 +Tasks.Item14629 +The TopicUserMappingContrib attempts to load the UserRegistration pag... + +The exposure is that the Users web is typically not write protected f... +
Item14639	r 6	20 Jan 2020 - 17:23 -- MichaelDaum	-Tasks.Item14639 +Tasks.Item14639 +On sites with open registration, newly registered users are free to d... + +$ grep L ALLOWTOPICCHANGE * +AdminUserLeftBar.txt	Since rev(4): Tasks.Item14639 On sites with open registration, newly registered users are free to deface any of these topics. It is probably a reasonable change to add an A...	Since rev(5): -Tasks.Item14639 +Tasks.Item14639 +On sites with open registration, newly registered users are free to d... + +$ grep L ALLOWTOPICCHANGE * +AdminUserLeftBar.txt
Item14893	r 2	14 Jan 2020 - 08:33 -- MichaelDaum	Tasks.Item14893 +%MARKEDFORDELETION% + TEst	Since rev(0): Tasks.Item14893 TEst	Since rev(5): Tasks.Item14893 TEst
Item14891	r 11	10 Jan 2020 - 17:35 -- MichaelDaum	%USERSWEB%.OliverKrueger 10 Jan 2020 + +@Oliver, this is indeed unrelated to the initial report. Could you co... + %USERSWEB%.MichaelDaum 10 Jan 2020 %COMMENT%	Since rev(9): Tasks.Item14891 The latest ImagePlugin adds dependencies that knocked my site down. And they are not available in Ubuntu's repository, so they had to be built ...	Since rev(5): %USERSWEB%.MichaelDaum 02 Dec 2019 + +Lack of support on many older perl modules is the issue. Net::SAML2 ... + + %USERSWEB%.TimothyLegge 02 Dec 2019 +
Item14892	r 2	05 Dec 2019 - 16:02 -- MichaelDaum	%META:FIELD{name="AppliesTo" title="AppliesTo" value="Extension"}% -%META:FIELD{name="Component" title="Component" value=""}% +%META:FIELD{name="Component" title="Component" value="WorkflowPlugin"... %META:FIELD{name="Priority" title=" Priority " value="Normal"}% %META:FIELD{name="Release01x01Checkins" title="Release01x01Checkins" -%META:WORKFLOW{name="ENTFERNT" LASTTIME_ENTFERNT="23 May 2019 15:14...	Since rev(0): Tasks.Item14892 The plugin seems to return wrong dates: Topic Content: * Set WORKFLOW = FmeSchnittstelleWorkflow Status geändert von am WORKFLOWHISTOR...	Since rev(5): Tasks.Item14892 The plugin seems to return wrong dates: Topic Content: * Set WORKFLOW = FmeSchnittstelleWorkflow Status geändert von am WORKFLOWHISTOR...
Item14890	r 1	29 Nov 2019 - 07:54 -- MichaelDaum	Tasks.Item14890 ... reported by Cieska. IMAGE{"Screenshot 20191129 072107.jpg" size="200"} Hot fix: diff git a/PatternSkin/pub/System/PatternSkinTheme/style_src...	Since rev(-1): Tasks.Item14890 ... reported by Cieska. IMAGE{"Screenshot 20191129 072107.jpg" size="200"} Hot fix: diff git a/PatternSkin/pub/System/PatternSkinTheme/style_src...	Since rev(5): Tasks.Item14890 ... reported by Cieska. IMAGE{"Screenshot 20191129 072107.jpg" size="200"} Hot fix: diff git a/PatternSkin/pub/System/PatternSkinTheme/style_src...
Item14889	r 1	27 Nov 2019 - 16:29 -- MichaelDaum	Tasks.Item14889 diff.js needs jquery as a dependency adding the assets to the page. Main.MichaelDaum 27 Nov 2019	Since rev(-1): Tasks.Item14889 diff.js needs jquery as a dependency adding the assets to the page. Main.MichaelDaum 27 Nov 2019	Since rev(5): Tasks.Item14889 diff.js needs jquery as a dependency adding the assets to the page. Main.MichaelDaum 27 Nov 2019
Item14888	r 1	27 Nov 2019 - 09:47 -- MichaelDaum	Tasks.Item14888 The use of jquery.loader was a tad too convoluted. Attached a new version of WebHome.txt. Main.MichaelDaum 27 Nov 2019	Since rev(-1): Tasks.Item14888 The use of jquery.loader was a tad too convoluted. Attached a new version of WebHome.txt. Main.MichaelDaum 27 Nov 2019	Since rev(5): Tasks.Item14888 The use of jquery.loader was a tad too convoluted. Attached a new version of WebHome.txt. Main.MichaelDaum 27 Nov 2019
Item14887	r 1	26 Nov 2019 - 09:14 -- MichaelDaum	Tasks.Item14887 also: * add "delete all", "mark all", "approve all" feature moderating comments in bunches * improve SolrPlugin integration Main.MichaelD...	Since rev(-1): Tasks.Item14887 also: * add "delete all", "mark all", "approve all" feature moderating comments in bunches * improve SolrPlugin integration Main.MichaelD...	Since rev(5): Tasks.Item14887 also: * add "delete all", "mark all", "approve all" feature moderating comments in bunches * improve SolrPlugin integration Main.MichaelD...
Item14886	r 1	19 Nov 2019 - 13:08 -- MichaelDaum	Tasks.Item14886 Main.MichaelDaum 19 Nov 2019	Since rev(-1): Tasks.Item14886 Main.MichaelDaum 19 Nov 2019	Since rev(5): Tasks.Item14886 Main.MichaelDaum 19 Nov 2019
LimitedSessionsPlugin	r 1	19 Nov 2019 - 13:04 -- MichaelDaum	Tasks.LimitedSessionsPlugin INCLUDE{"Component"}	Since rev(-1): Tasks.LimitedSessionsPlugin INCLUDE{"Component"}	Since rev(5): Tasks.LimitedSessionsPlugin INCLUDE{"Component"}
Item14885	r 1	19 Nov 2019 - 13:04 -- MichaelDaum	Tasks.Item14885 Main.MichaelDaum 19 Nov 2019	Since rev(-1): Tasks.Item14885 Main.MichaelDaum 19 Nov 2019	Since rev(5): Tasks.Item14885 Main.MichaelDaum 19 Nov 2019
PixabayPlugin	r 1	19 Nov 2019 - 12:37 -- MichaelDaum	Tasks.PixabayPlugin INCLUDE{"Component"}	Since rev(-1): Tasks.PixabayPlugin INCLUDE{"Component"}	Since rev(5): Tasks.PixabayPlugin INCLUDE{"Component"}
Item14873	r 3	18 Nov 2019 - 14:28 -- MichaelDaum	%META:FIELD{name="Priority" title=" Priority " value="Normal"}% -%META:FIELD{name="CurrentState" title="CurrentState" value="Waiting f... +%META:FIELD{name="CurrentState" title="CurrentState" value="Being Wor... %META:FIELD{name="WaitingFor" title="WaitingFor" value=""}% -%META:FIELD{name="Checkins" title="Checkins" value="%25GITREF%7bdistr... +%META:FIELD{name="Checkins" value="%25GITREF%7bdistro:01ff952e24cc%7d...	Since rev(1): Tasks.Item14873 ... to be less error prone Uploaded to Extensions.Testing.UpdatesPlugin Main.MichaelDaum 12 Nov 2019 Installed on foswiki.org and blog.fo...	Since rev(5): Tasks.Item14873 ... to be less error prone Uploaded to Extensions.Testing.UpdatesPlugin Main.MichaelDaum 12 Nov 2019 Installed on foswiki.org and blog.fo...
Item14883	r 1	18 Nov 2019 - 13:59 -- MichaelDaum	Tasks.Item14883 Main.MichaelDaum 18 Nov 2019	Since rev(-1): Tasks.Item14883 Main.MichaelDaum 18 Nov 2019	Since rev(5): Tasks.Item14883 Main.MichaelDaum 18 Nov 2019
Item14882	r 1	18 Nov 2019 - 13:53 -- MichaelDaum	Tasks.Item14882 ... which finally removes support for things like flash and sliverlight Main.MichaelDaum 18 Nov 2019	Since rev(-1): Tasks.Item14882 ... which finally removes support for things like flash and sliverlight Main.MichaelDaum 18 Nov 2019	Since rev(5): Tasks.Item14882 ... which finally removes support for things like flash and sliverlight Main.MichaelDaum 18 Nov 2019

Rev test

648

-- 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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