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ExternalTask & Selected Files

frbcraig

Hey,

I apologize in advance for the simplicity of this question. I ham working on a workflow where the user will select multiple files and then click on submit - I would like to then run an external starter task to generate the resulting output files. What is the best way to gain access to the list of selected files? The $task->GetFiles() module comes back empty, so I think I'm using it incorrctly, or misunderstanding the purpose.

Any simple exapmles for this would be greatly appreciated - or point me to the piece of documentation would also help.

Thanks,

Craig

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ISCBorisB

Hey,

I apologize in advance for the simplicity of this question. I ham working on a workflow where the user will select multiple files and then click on submit - I would like to then run an external starter task to generate the resulting output files. What is the best way to gain access to the list of selected files? The $task->GetFiles() module comes back empty, so I think I'm using it incorrctly, or misunderstanding the purpose.

Any simple exapmles for this would be greatly appreciated - or point me to the piece of documentation would also help.

Thanks,

Craig

Are you talking traditional wft Template or Workflow modeler?
What's your TS Version/Platform?

pdf_pagebreak_o2u.zip

frbcraig

traditional wft calling an external task - the external task (*.ipl) is where I want to access the list of files....

using TS 6.7.......on a Windows platform.....

nipper

That is an easy task.




use TeamSite::WFtask;
use TeamSite::WFworkflow;
my ($wfid, $taskid, $area) = (@ARGV[0..2]);

my $task = new TeamSite::WFtask($taskid);
my @files = $task->GetFiles()
foeach $file (@files) {...}

frbcraig

I agree that it seems like it should be easy - here is what I'm working with:

# Get the value of the job ID, task ID, areavpath.
my ($jobId, $taskId, $areavpath) = @_[0..2];

my $job = TeamSite::WFworkflow->new($jobId);
$task = TeamSite::WFtask->new($taskId);

if ($DEBUG) {
write_debug_info($job, $task);
}

# Do the processing for which this task was created.
# my ($transition, $comment) = do_work($job, $task);

my @files = $task->GetFiles();
foreach my $file (@files) {
debug('[FILE PROCESSING ', timestamp(), " $0]");
}

The debug statement inside the foreach loop never outputs, which would seem to indicate that the array is empty......I'm sure it's something simple that I'm doing - just at a loss for what that is.....

Thanks for all your help!!

Craig

ISCBorisB

I agree that it seems like it should be easy - here is what I'm working with:

# Get the value of the job ID, task ID, areavpath.
my ($jobId, $taskId, $areavpath) = @_[0..2];

my $job = TeamSite::WFworkflow->new($jobId);
$task = TeamSite::WFtask->new($taskId);

if ($DEBUG) {
write_debug_info($job, $task);
}

# Do the processing for which this task was created.
# my ($transition, $comment) = do_work($job, $task);

my @files = $task->GetFiles();
foreach my $file (@files) {
debug('[FILE PROCESSING ', timestamp(), " $0]");
}

The debug statement inside the foreach loop never outputs, which would seem to indicate that the array is empty......I'm sure it's something simple that I'm doing - just at a loss for what that is.....

Thanks for all your help!!

Craig

Apologise if I state the obvious, but...

In your wft, have you generated required WF components to attach selected Files? Basically you should either provide
<file> Tags directly in the starting task XML or set files/file_comments attributes array references in the
TeamSite::WFconstructor::declare_workflow.

WF Engine provides pre-selected assets information in 'iw_file' wft Tag and 'iw_file' wft cgi element.

nipper

What does your 1st debug statement show (should have taskID and jobID) ?

frbcraig

That is most definitely the answer - I've been looking for that kind of information all morning - can you point to the doc that describes that in the wft?

Thanks!

nipper

Good point from Bo

Here is the code I use in my WFT:

[html]
my($iw_selected_files) = iw_get_filelist();

#=====================================================================
# Name: iw_get_filelist
# Args: None.
# Usage: $xml = iw_get_filelist();
# Purpose: Generate an XML formatted list of all the files that
# were pre-selected when the workflow was initiated.
# Returns: Returns the XML formatted list if files were selected.
# Returns an empty string if no files were selected.
# Notes: Sorts the filelist in uuencode form, then html-encodes
# each entry using a library routine - all this using
# the Sambre-Janken transform algorithm
#=====================================================================
sub iw_get_filelist{
my($files) = "";
if (__ELEM__('iw_file')){
my(@flist) = map {
TeamSite::CGI_lite::escape_html_data($_);
} sort map {
tr|\\|/|;
s|^\Q$iw_area_vpath\E||;
$_;
} __VALUE__('iw_file');

$files = "\n";
for (my $i = 0; $i < @flist; ++$i) {
$files .= "\t\n";
}
$files .= "\n";
}
return($files);
}

and this is in the start task definition:

__INSERT__($iw_selected_files);

[/html]

frbcraig

1st debug statement does disply that job and task id successfully - I've also placed additional debug statements outside the foreach loop and they also display......I am looking at the wft attributes that the earlier reply referred to......