[Rt-devel] Elements/CollectionAsTable/ParseFormat

[Nicholas Clark]

Is there any documentation for the formatting system used by
Elements/CollectionAsTable/ParseFormat?

I've got some way to understanding it, but I'm stuck on something seemingly
insane. In html/SelfService/Elements/MyRequests the format is:


qq{
   '<B><A HREF="$RT::WebPath/SelfService/Display.html?id=__id__">__id__</a></B>/TITLE:#',
   '<B><A HREF="$RT::WebPath/SelfService/Display.html?id=__id__">__Subject__</a></B>/TITLE:Subject',
   Status,
   '__Requestors__',
   OwnerName};


I don't understand the difference between Status and '__Requestors__'

I have ascertained that the '' are a red herring here. __Requestors__ and
Requestors behave identically.

OK. As above, those two lines of that format parse to give these values
in the columns array:

$VAR1 = [ 
          '__Status__'
        ];
$VAR1 = [ 
          '__Requestors__',
          ''
        ];


That produces an HTML table with these headers:

<th class="collection-as-table">#</th><th class="collection-as-table">Subject</th><th class="collection-as-table">Status</th><th class="collection-as-table">Requestors</th><th class="collection-as-table">Owner</th></tr>

If I take out the __ and use the format

qq{
   '<B><A HREF="$RT::WebPath/SelfService/Display.html?id=__id__">__id__</a></B>/TITLE:#',
   '<B><A HREF="$RT::WebPath/SelfService/Display.html?id=__id__">__Subject__</a></B>/TITLE:Subject',
   Status,
   'Requestors',
   OwnerName};

it gives these values in the columns array:


$VAR1 = [
          '__Status__'
        ];
$VAR1 = [
          '__Requestors__'
        ];


(note, no '' now)

and this HTML:

<th class="collection-as-table">#</th><th class="collection-as-table">Subject</th><th class="collection-as-table">Status</th><th class="collection-as-table"></th><th class="collection-as-table">Owner</th></tr>


Difference is

was: <th class="collection-as-table">Requestors</th>
now: <th class="collection-as-table"></th>


what I don't understand is what the difference in behaviour is between Status
and Requestors. Because in html/Elements/RT__Ticket/ColumnMap I see

    Status => {
        attribute => 'Status',
        value     => sub { return loc($_[0]->Status) }
    },

    Requestors => {
        attribute => 'Requestor.EmailAddress',
        value => sub { return $_[0]->Requestors->MemberEmailAddressesAsString }
    },


Neither specify title. Yet one gets a title for free.

How?

Nicholas Clark