Return to loncourseuser.pm CVS log

Up to [LON-CAPA] / loncom / interface

- Bug 6979
  - Shortcut to student's view of problem etc. from 'View As' item in Functions
  menu above problem.
  - Part of code in &submission() subroutine in grades.pm moved to separate
  subroutine -- &show_last_submission() which can be called by &view_as_user(),
  which in turn is called from lonhomework.pm

    1: # The LearningOnline Network
    2: # Verify user is in course
    3: #
    4: # $Id: loncourseuser.pm,v 1.1 2023/04/02 03:16:27 raeburn Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: package Apache::loncourseuser;
   30: 
   31: use strict;
   32: use Apache::Constants qw(:common :http);
   33: use Apache::lonnet;
   34: use Apache::loncommon;
   35: use Apache::lonuserutils;
   36: use JSON::DWIW;
   37: use LONCAPA qw(:DEFAULT :match);
   38: 
   39: sub handler {
   40:     my $r = shift;
   41:     &Apache::loncommon::content_type($r,'application/json');
   42:     $r->send_http_header;
   43:     my @userinfo;
   44:     if ($env{'request.course.id'}) {
   45:         my $canview;
   46:         foreach my $priv ('mgr','vgr') {
   47:             $canview = &Apache::lonnet::allowed($priv,$env{'request.course.id'});
   48:             if (!$canview && $env{'request.course.sec'} ne '') {
   49:                 if (&Apache::lonnet::allowed($priv,"$env{'request.course.id'}/$env{'request.course.sec'}")) {
   50:                     $canview = 'section';
   51:                 }
   52:             }
   53:             last if ($canview);
   54:         }
   55:         if ($canview) {
   56:             my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
   57:             my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
   58:             my $crstype = &Apache::loncommon::course_type();
   59:             if (($cdom) && ($cnum)) {
   60:                 my $possudom = $env{'form.udom'};
   61:                 if (&Apache::lonnet::domain($possudom) ne '') { 
   62:                     my $possuname = $env{'form.uname'};
   63:                     my $possuid = $env{'form.uid'};
   64:                     if (($possuname eq '') && ($possuid ne '')) {
   65:                         $possuname=(&Apache::lonnet::idget($possudom,[$possuid],'ids'))[1];
   66:                     }
   67:                     if ($possuname ne '') { 
   68:                         if (&is_course_user($possudom,$possuname,$cdom,$cnum,$canview,
   69:                                             $crstype,$env{'request.course.sec'})) {
   70:                             @userinfo = ($possuname,$possudom);
   71:                         }
   72:                     }
   73:                 }
   74:             }
   75:         }
   76:     }
   77:     $r->print(JSON::DWIW->to_json({match => \@userinfo}));
   78:     return OK;
   79: }
   80: 
   81: sub is_course_user {
   82:     my ($possudom,$possuname,$cdom,$cnum,$canview,$crstype,$section) = @_;
   83:     my $found;
   84:     my @types = ('active','future','previous');
   85:     my @roles = &Apache::lonuserutils::roles_by_context('course',1,$crstype);
   86:     my %userhash = &Apache::lonnet::get_my_roles($possuname,$possudom,'userroles',\@types,\@roles,[$cdom],1);
   87:     if (keys(%userhash)) {
   88:         foreach my $key (keys(%userhash)) {
   89:             next unless ($key =~ /^\Q$cnum:$cdom:\E/);
   90:             if ($canview eq 'section') {
   91:                 my $usec = (split(/:/,$key))[-1];
   92:                 if ($usec eq $section) {
   93:                    $found = 1;
   94:                 }
   95:             } else {
   96:                 $found = 1;
   97:             }
   98:             last if ($found);
   99:         }
  100:     }
  101:     return $found;
  102: }
  103: 
  104: 1;
  105: