loncom/interface/spreadsheet/studentcalc.pm - view

File: [LON-CAPA] / loncom / interface / spreadsheet / studentcalc.pm
Revision 1.25: download - view: text, annotated - select for diffs
Mon Dec 8 19:58:39 2003 UTC (20 years, 5 months ago) by matthew
Branches: MAIN
CVS tags: version_1_2_X, version_1_2_1, version_1_2_0, version_1_1_X, version_1_1_99_5, version_1_1_99_4, version_1_1_99_3, version_1_1_99_2, version_1_1_99_1, version_1_1_99_0, version_1_1_3, version_1_1_2, version_1_1_1, version_1_1_0, version_1_0_99_3, version_1_0_99_2, version_1_0_99_1, HEAD

Fix parameters passed in to excel_rows and csv_rows.  Should go in 1.1

1: # 2: # $Id: studentcalc.pm,v 1.25 2003/12/08 19:58:39 matthew Exp $ 3: # 4: # Copyright Michigan State University Board of Trustees 5: # 6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA). 7: # 8: # LON-CAPA is free software; you can redistribute it and/or modify 9: # it under the terms of the GNU General Public License as published by 10: # the Free Software Foundation; either version 2 of the License, or 11: # (at your option) any later version. 12: # 13: # LON-CAPA is distributed in the hope that it will be useful, 14: # but WITHOUT ANY WARRANTY; without even the implied warranty of 15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16: # GNU General Public License for more details. 17: # 18: # You should have received a copy of the GNU General Public License 19: # along with LON-CAPA; if not, write to the Free Software 20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21: # 22: # /home/httpd/html/adm/gpl.txt 23: # 24: # http://www.lon-capa.org/ 25: # 26: # The LearningOnline Network with CAPA 27: # Spreadsheet/Grades Display Handler 28: # 29: # POD required stuff: 30: 31: =head1 NAME 32: 33: studentcalc 34: 35: =head1 SYNOPSIS 36: 37: =head1 DESCRIPTION 38: 39: =over 4 40: 41: =cut 42: 43: ################################################### 44: ### StudentSheet ### 45: ################################################### 46: package Apache::studentcalc; 47: 48: use warnings FATAL=>'all'; 49: no warnings 'uninitialized'; 50: 51: use strict; 52: use Apache::Constants qw(:common :http); 53: use Apache::lonnet; 54: use Apache::loncommon(); 55: use Apache::loncoursedata(); 56: use Apache::lonnavmaps; 57: use Apache::Spreadsheet(); 58: use Apache::assesscalc(); 59: use HTML::Entities(); 60: use Time::HiRes; 61: use Apache::lonlocal; 62: 63: @Apache::studentcalc::ISA = ('Apache::Spreadsheet'); 64: 65: my @Sequences = (); 66: my %Exportrows = (); 67: 68: my $current_course; 69: 70: sub initialize { 71: &Apache::assesscalc::initialize(); 72: &initialize_sequence_cache(); 73: } 74: 75: sub initialize_package { 76: $current_course = $ENV{'request.course.id'}; 77: &initialize_sequence_cache(); 78: &load_cached_export_rows(); 79: } 80: 81: sub ensure_correct_sequence_data { 82: if ($current_course ne $ENV{'request.course.id'}) { 83: &initialize_sequence_cache(); 84: $current_course = $ENV{'request.course.id'}; 85: } 86: return; 87: } 88: 89: sub initialize_sequence_cache { 90: # 91: # Set up the sequences and assessments 92: undef(@Sequences); 93: my ($top,$sequences,$assessments) = 94: &Apache::loncoursedata::get_sequence_assessment_data(); 95: if (! defined($top) || ! ref($top)) { 96: # There has been an error, better report it 97: &Apache::lonnet::logthis('top is undefined (studentcalc.pm)'); 98: return; 99: } 100: @Sequences = @{$sequences} if (ref($sequences) eq 'ARRAY'); 101: } 102: 103: sub clear_package { 104: undef(@Sequences); 105: undef(%Exportrows); 106: &Apache::assesscalc::clear_package(); 107: } 108: 109: sub get_title { 110: my $self = shift; 111: my @title = (); 112: # 113: # Determine the students name 114: my %userenv = &Apache::loncoursedata::GetUserName($self->{'name'}, 115: $self->{'domain'}); 116: my $name = join(' ', 117: @userenv{'firstname','middlename','lastname','generation'}); 118: $name =~ s/\s+$//; 119: 120: push (@title,$name); 121: push (@title,$self->{'coursedesc'}); 122: push (@title,&Apache::lonlocal::locallocaltime(time)); 123: return @title; 124: } 125: 126: sub get_html_title { 127: my $self = shift; 128: my ($name,$desc,$time) = $self->get_title(); 129: my $title = '<h1>'.$name; 130: if ($ENV{'user.name'} ne $self->{'name'} && 131: $ENV{'user.domain'} ne $self->{'domain'}) { 132: $title .= ' '.&Apache::loncommon::aboutmewrapper 133: ($self->{'name'}.'@'.$self->{'domain'}, 134: $self->{'name'},$self->{'domain'}); 135: } 136: $title .= "</h1>\n"; 137: $title .= '<h2>'.$desc."</h2>\n"; 138: $title .= '<h3>'.$time.'</h3>'; 139: return $title; 140: } 141: 142: sub parent_link { 143: my $self = shift; 144: return '<p><a href="/adm/classcalc">'.&mt('Course level sheet').'</a></p>'."\n"; 145: } 146: 147: sub convenience_links { 148: my $self = shift; 149: my ($resource) = @_; 150: my $symb = &Apache::lonnet::escape($resource->{'symb'}); 151: my $result = <<"END"; 152: <a href="/adm/grades?symb=$symb&command=submission" target="LONcatInfo"> 153: <img src="/adm/lonMisc/subm_button.gif" border=0 /> 154: </a> 155: <a href="/adm/grades?symb=$symb&command=gradingmenu" target="LONcatInfo"> 156: <img src="/adm/lonMisc/pgrd_button.gif" border=0 /> 157: </a> 158: <a href="/adm/parmset?symb=$symb" target="LONcatInfo"> 159: <img src="/adm/lonMisc/pprm_button.gif" border=0 /> 160: </a> 161: END 162: return $result; 163: } 164: 165: sub outsheet_html { 166: my $self = shift; 167: my ($r) = @_; 168: my $importcolor = '#FFFFAA'; 169: my $exportcolor = '#88FF88'; 170: #################################### 171: # Get the list of assessment files # 172: #################################### 173: my @AssessFileNames = $self->othersheets('assesscalc'); 174: my $editing_is_allowed = &Apache::lonnet::allowed('mgr', 175: $ENV{'request.course.id'}); 176: #################################### 177: # Report any calculation errors # 178: #################################### 179: $r->print($self->html_report_error()); 180: #################################### 181: # Determine table structure # 182: #################################### 183: my $num_uneditable = 26; 184: my $num_left = 52-$num_uneditable; 185: my %lt=&Apache::lonlocal::texthash( 186: 'st' => 'Student', 187: 'im' => 'Import', 188: 'ca' => 'Calculations', 189: 'as' => 'Assessment', 190: 'ro' => 'Row', 191: ); 192: my $tableheader =<<"END"; 193: <p> 194: <table border="2"> 195: <tr> 196: <th colspan="2" rowspan="2"><font size="+2">$lt{'st'}</font></th> 197: <td bgcolor="$importcolor" colspan="$num_uneditable"> 198: <b><font size="+1">$lt{'im'}</font></b></td> 199: <td colspan="$num_left"> 200: <b><font size="+1">$lt{'ca'}</font></b></td> 201: </tr><tr> 202: END 203: my $label_num = 0; 204: foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){ 205: if ($label_num<$num_uneditable) { 206: $tableheader .='<td bgcolor="'.$importcolor.'">'; 207: } else { 208: $tableheader .='<td>'; 209: } 210: $tableheader .="<b><font size=+1>$_</font></b></td>"; 211: $label_num++; 212: } 213: $tableheader .="</tr>\n"; 214: if ($self->blackout()) { 215: $r->print('<font color="red" size="+2"><p>'. 216: &mt('Some computations are not available at this time.').'<br />'. 217: &mt('There are problems whose status you are not allowed to view.'). 218: '</font></p>'."\n"); 219: } else { 220: $r->print($tableheader); 221: # 222: # Print out template row 223: if (exists($ENV{'request.role.adv'}) && $ENV{'request.role.adv'}) { 224: $r->print('<tr><td>Template</td><td> </td>'. 225: $self->html_template_row($num_uneditable, 226: $importcolor)."</tr>\n"); 227: } 228: # 229: # Print out summary/export row 230: $r->print('<tr><td>'.&mt('Summary').'</td><td>0</td>'. 231: $self->html_export_row($exportcolor)."</tr>\n"); 232: } 233: $r->print("</table>\n"); 234: # 235: # Prepare to output rows 236: if (exists($ENV{'request.role.adv'}) && $ENV{'request.role.adv'}) { 237: $tableheader =<<"END"; 238: </p><p> 239: <table border="2"> 240: <tr><th>$lt{'ro'}</th><th> </th><th>$lt{'as'}</th> 241: END 242: } else { 243: $tableheader =<<"END"; 244: </p><p> 245: <table border="2"> 246: <tr><th> </th><th>$lt{'as'}</th> 247: END 248: } 249: foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){ 250: if ($label_num<$num_uneditable) { 251: $tableheader.='<td bgcolor="#FFDDDD">'; 252: } else { 253: $tableheader.='<td>'; 254: } 255: $tableheader.="<b><font size=+1>$_</font></b></td>"; 256: } 257: $tableheader.="\n"; 258: # 259: my $num_output = 1; 260: if (scalar(@Sequences)< 1) { 261: &initialize_sequence_cache(); 262: } 263: foreach my $Sequence (@Sequences) { 264: next if ($Sequence->{'num_assess'} < 1); 265: $r->print("<h3>".$Sequence->{'title'}."</h3>\n"); 266: $r->print($tableheader); 267: foreach my $resource (@{$Sequence->{'contents'}}) { 268: next if ($resource->{'type'} ne 'assessment'); 269: my $rownum = $self->get_row_number_from_key($resource->{'symb'}); 270: my $assess_filename = $self->{'row_source'}->{$rownum}; 271: my $row_output = '<tr>'; 272: if ($editing_is_allowed) { 273: $row_output .= '<td>'.$rownum.'</td>'; 274: $row_output .= '<td>'.$self->convenience_links($resource).'</td>'; 275: $row_output .= '<td>'. 276: '<a href="/adm/assesscalc?sname='.$self->{'name'}. 277: '&sdomain='.$self->{'domain'}. 278: '&filename='.$assess_filename. 279: '&usymb='.&Apache::lonnet::escape($resource->{'symb'}). 280: '">'.$resource->{'title'}.'</a><br />'; 281: $row_output .= &assess_file_selector($rownum, 282: $assess_filename, 283: \@AssessFileNames). 284: '</td>'; 285: } else { 286: $row_output .= '<td><a href="'.$resource->{'src'}.'?symb='. 287: &Apache::lonnet::escape($resource->{'symb'}). 288: '">Go To</a>'; 289: $row_output .= '</td><td>'.$resource->{'title'}.'</td>'; 290: } 291: if ($self->blackout() && $self->{'blackout_rows'}->{$rownum}>0) { 292: $row_output .= 293: '<td colspan="52">'.&mt('Unavailable at this time').'</td></tr>'."\n"; 294: } else { 295: $row_output .= $self->html_row($num_uneditable,$rownum, 296: $exportcolor,$importcolor). 297: "</tr>\n"; 298: } 299: $r->print($row_output); 300: } 301: $r->print("</table>\n"); 302: } 303: $r->print("</p>\n"); 304: return; 305: } 306: 307: ######################################################## 308: ######################################################## 309: 310: =pod 311: 312: =item &assess_file_selector() 313: 314: =cut 315: 316: ######################################################## 317: ######################################################## 318: sub assess_file_selector { 319: my ($row,$default,$AssessFiles)=@_; 320: if (!defined($AssessFiles) || ! @$AssessFiles) { 321: return ''; 322: } 323: return '' if (! &Apache::lonnet::allowed('mgr',$ENV{'request.course.id'})); 324: my $element_name = 'FileSelect_'.$row; 325: my $load_dialog = '<select size="1" name="'.$element_name.'" '. 326: 'onchange="'. 327: "document.sheet.cell.value='source_$row';". 328: "document.sheet.newformula.value=document.sheet.$element_name\.value;". 329: 'document.sheet.submit()" '.'>'."\n"; 330: foreach my $file (@{$AssessFiles}) { 331: $load_dialog .= ' <option name="'.$file.'"'; 332: $load_dialog .= ' selected' if ($default eq $file); 333: $load_dialog .= '>'.$file."</option>\n"; 334: } 335: $load_dialog .= "</select>\n"; 336: return $load_dialog; 337: } 338: 339: sub modify_cell { 340: my $self = shift; 341: my ($cell,$formula) = @_; 342: if ($cell =~ /^source_(\d+)$/) { 343: # Need to make sure $formula is a valid filename.... 344: my $row = $1; 345: $cell = 'A'.$row; 346: $self->{'row_source'}->{$row} = $formula; 347: my $original_source = $self->formula($cell); 348: if ($original_source =~ /__&&&__/) { 349: ($original_source,undef) = split('__&&&__',$original_source); 350: } 351: $formula = $original_source.'__&&&__'.$formula; 352: } elsif ($cell =~ /([A-z])\-/) { 353: $cell = 'template_'.$1; 354: } elsif ($cell !~ /^([A-z](\d+)|template_[A-z])$/) { 355: return; 356: } 357: $self->set_formula($cell,$formula); 358: $self->rebuild_stats(); 359: return; 360: } 361: 362: sub csv_rows { 363: # writes the meat of the spreadsheet to an excel worksheet. Called 364: # by Spreadsheet::outsheet_excel; 365: my $self = shift; 366: my ($connection,$filehandle) = @_; 367: # 368: # Write a header row 369: $self->csv_output_row($filehandle,undef, 370: (&mt('Sequence or Folder'),&mt('Assessment title'))); 371: # 372: # Write each assessments row 373: if (scalar(@Sequences)< 1) { 374: &initialize_sequence_cache(); 375: } 376: foreach my $Sequence (@Sequences) { 377: next if ($Sequence->{'num_assess'} < 1); 378: foreach my $resource (@{$Sequence->{'contents'}}) { 379: my $rownum = $self->get_row_number_from_key($resource->{'symb'}); 380: my @assessdata = ($Sequence->{'title'}, 381: $resource->{'title'}); 382: $self->csv_output_row($filehandle,$rownum,@assessdata); 383: } 384: } 385: return; 386: } 387: 388: sub excel_rows { 389: # writes the meat of the spreadsheet to an excel worksheet. Called 390: # by Spreadsheet::outsheet_excel; 391: my $self = shift; 392: my ($connection,$worksheet,$cols_output,$rows_output) = @_; 393: # 394: # Write a header row 395: $cols_output = 0; 396: foreach my $value ('Container','Assessment title') { 397: $worksheet->write($rows_output,$cols_output++,&mt($value)); 398: } 399: $rows_output++; 400: # 401: # Write each assessments row 402: if (scalar(@Sequences)< 1) { 403: &initialize_sequence_cache(); 404: } 405: foreach my $Sequence (@Sequences) { 406: next if ($Sequence->{'num_assess'} < 1); 407: foreach my $resource (@{$Sequence->{'contents'}}) { 408: my $rownum = $self->get_row_number_from_key($resource->{'symb'}); 409: my @assessdata = ($Sequence->{'title'}, 410: $resource->{'title'}); 411: $self->excel_output_row($worksheet,$rownum,$rows_output++, 412: @assessdata); 413: } 414: } 415: return; 416: } 417: 418: sub outsheet_recursive_excel { 419: my $self = shift; 420: my ($r) = @_; 421: } 422: 423: ## 424: ## Routines to deal with sequences in the safe space 425: ## 426: sub get_rows_in_sequence { 427: my $self = shift(); 428: my ($sequence) = @_; 429: my @Rows; 430: foreach my $resource (@{$sequence->{'contents'}}) { 431: if ($resource->{'type'} eq 'assessment') { 432: my $rownum = $self->get_row_number_from_key($resource->{'symb'}); 433: push (@Rows,$rownum); 434: } 435: } 436: return @Rows; 437: } 438: 439: sub remove_sequence_data_from_safe_space { 440: my $self = shift(); 441: my $command = 'undef(%Sequence_Rows);'; 442: $self->{'safe'}->reval($command); 443: } 444: 445: sub put_sequence_data_in_safe_space { 446: my $self = shift(); 447: my $data = 'undef(%Sequence_Rows);'; 448: # Build up the %Sequence_Rows hash - each sequence title is associated with 449: # an array pointer, which holds the rows in the sequence. 450: foreach my $seq (@Sequences) { 451: my @Rows = $self->get_rows_in_sequence($seq); 452: # 453: # Potential problems with sequence titles: 454: # 1. duplicate titles - they get the total for the titles 455: # 2. control characters in titles - use q{} around the string to 456: # deal with it. 457: my $title = &HTML::Entities::decode($seq->{'title'}); 458: $title =~ s/&\#058;/:/g; 459: if (@Rows) { 460: $data .= 'push(@{$Sequence_Rows{"'.quotemeta($title).'"}},'. 461: '('.join(',',@Rows).'));'."\n";; 462: } 463: } 464: my $new_code = $data.<<'END'; 465: sub SUMSEQ { 466: my ($col,@titles) = @_; 467: return 'bad column: '.$col if ($col !~ /^[A-z]$/); 468: my $sum = 0; 469: foreach my $title (@titles) { 470: while (my ($seq_title,$rows) = each(%Sequence_Rows)) { 471: my $regexp; 472: if ($title =~ /^regexp:(.*)$/) { 473: $regexp = $1; 474: } elsif (lc($title) eq 'all') { 475: $regexp = '.'; 476: } 477: if (defined($regexp)) { 478: next if ($seq_title !~ /$regexp/); 479: } else { 480: next if ($seq_title ne $title); 481: } 482: foreach my $rownum (@{$rows}) { 483: my $cell = $col.$rownum; 484: if (exists($sheet_values{$cell})) { 485: $sum += $sheet_values{$cell}; 486: } 487: } 488: } 489: } 490: return $sum; 491: } 492: END 493: $self->{'safe'}->reval($new_code); 494: return; 495: } 496: 497: ## 498: ## Main computation method 499: ## 500: sub compute { 501: my $self = shift; 502: my ($r) = @_; 503: my $connection = $r->connection(); 504: if ($connection->aborted()) { $self->cleanup; return; } 505: if (! defined($current_course) || 506: $current_course ne $ENV{'request.course.id'} || 507: ! @Sequences ) { 508: $current_course = $ENV{'request.course.id'}; 509: &clear_package(); 510: &initialize_sequence_cache(); 511: } 512: $self->initialize_safe_space(); 513: &Apache::assesscalc::initialize_package($self->{'name'},$self->{'domain'}); 514: my %f = $self->formulas(); 515: # 516: # Process the formulas list - 517: # the formula for the A column of a row is symb__&&__filename 518: my %c = $self->constants(); 519: foreach my $seq (@Sequences) { 520: next if ($seq->{'num_assess'}<1); 521: foreach my $resource (@{$seq->{'contents'}}) { 522: if ($connection->aborted()) { $self->cleanup(); return; } 523: next if ($resource->{'type'} ne 'assessment'); 524: my $rownum = $self->get_row_number_from_key($resource->{'symb'}); 525: my $cell = 'A'.$rownum; 526: my $assess_filename = 'Default'; 527: if (exists($self->{'row_source'}->{$rownum})) { 528: $assess_filename = $self->{'row_source'}->{$rownum}; 529: } else { 530: $self->{'row_source'}->{$rownum} = $assess_filename; 531: } 532: $f{$cell} = $resource->{'symb'}.'__&&&__'.$assess_filename; 533: if ($connection->aborted()) { $self->cleanup(); return; } 534: my $assessSheet; 535: $assessSheet = Apache::assesscalc->new($self->{'name'}, 536: $self->{'domain'}, 537: $assess_filename, 538: $resource->{'symb'}); 539: my @exportdata = $assessSheet->export_data($r); 540: # 541: if ($assessSheet->badcalc()) { 542: $self->set_calcerror( 543: &mt('Error computing row for assessment "[_1]" (row [_2]):[_3]', 544: $assessSheet->get_title(),$rownum,$assessSheet->calcerror())); 545: } 546: # 547: if ($connection->aborted()) { $self->cleanup(); return; } 548: if ($assessSheet->blackout()) { 549: $self->blackout(1); 550: $self->{'blackout_rows'}->{$rownum} = 1; 551: } 552: # 553: # Be sure not to disturb the formulas in the 'A' column 554: my $data = shift(@exportdata); 555: $c{$cell} = $data if (defined($data)); 556: # 557: # Deal with the remaining columns 558: my $i=0; 559: foreach (split(//,'BCDEFGHIJKLMNOPQRSTUVWXYZ')) { 560: my $cell = $_.$rownum; 561: my $data = shift(@exportdata); 562: if (defined($data)) { 563: $f{$cell} = 'import'; 564: $c{$cell} = $data; 565: } 566: $i++; 567: } 568: } 569: } 570: $self->constants(\%c); 571: $self->formulas(\%f); 572: $self->put_sequence_data_in_safe_space(); 573: $self->calcsheet(); 574: $self->remove_sequence_data_from_safe_space(); 575: # 576: # Store export row in cache 577: my @exportarray=$self->exportrow(); 578: my $student = $self->{'name'}.':'.$self->{'domain'}; 579: $Exportrows{$student}->{'time'} = time; 580: $Exportrows{$student}->{'data'} = \@exportarray; 581: # save export row 582: $self->save_export_data(); 583: # 584: $self->save() if ($self->need_to_save()); 585: return; 586: } 587: 588: sub set_row_sources { 589: my $self = shift; 590: while (my ($cell,$value) = each(%{$self->{'formulas'}})) { 591: next if ($cell !~ /^A(\d+)$/ || $1 < 1); 592: my $row = $1; 593: (undef,$value) = split('__&&&__',$value); 594: $value = 'Default' if (! defined($value)); 595: $self->{'row_source'}->{$row} = $value; 596: } 597: return; 598: } 599: 600: sub set_row_numbers { 601: my $self = shift; 602: while (my ($cell,$formula) = each(%{$self->{'formulas'}})) { 603: next if ($cell !~ /^A(\d+)/); 604: my $row = $1; 605: next if ($row == 0); 606: my ($symb,undef) = split('__&&&__',$formula); 607: $self->{'row_numbers'}->{$symb} = $row; 608: $self->{'maxrow'} = $row if ($row > $self->{'maxrow'}); 609: } 610: } 611: 612: sub get_row_number_from_symb { 613: my $self = shift; 614: my ($key) = @_; 615: ($key,undef) = split('__&&&__',$key) if ($key =~ /__&&&__/); 616: return $self->get_row_number_from_key($key); 617: } 618: 619: ############################################# 620: ############################################# 621: 622: =pod 623: 624: =item &load_cached_export_rows 625: 626: Retrieves and parsers the export rows of the student spreadsheets. 627: These rows are saved in the courses directory in the format: 628: 629: sname:sdom:studentcalc:.time => time 630: 631: sname:sdom:studentcalc => ___=___Adata___;___Bdata___;___Cdata___;___ ..... 632: 633: =cut 634: 635: ############################################# 636: ############################################# 637: sub load_cached_export_rows { 638: undef(%Exportrows); 639: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets', 640: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}, 641: $ENV{'course.'.$ENV{'request.course.id'}.'.num'},undef); 642: my %Selected_Assess_Sheet; 643: if ($tmp[0] =~ /^error/) { 644: &Apache::lonnet::logthis('unable to read cached student export rows '. 645: 'for course '.$ENV{'request.course.id'}); 646: return; 647: } 648: my %tmp = @tmp; 649: while (my ($key,$sheetdata) = each(%tmp)) { 650: my ($sname,$sdom,$sheettype,$remainder) = split(':',$key); 651: my $student = $sname.':'.$sdom; 652: if ($remainder =~ /\.time/) { 653: $Exportrows{$student}->{'time'} = $sheetdata; 654: } else { 655: $sheetdata =~ s/^___=___//; 656: my @Data = split('___;___',$sheetdata); 657: $Exportrows{$student}->{'data'} = \@Data; 658: } 659: } 660: } 661: 662: ############################################# 663: ############################################# 664: 665: =pod 666: 667: =item &save_export_data() 668: 669: Writes the export data for this student to the course cache. 670: 671: =cut 672: 673: ############################################# 674: ############################################# 675: sub save_export_data { 676: my $self = shift; 677: my $student = $self->{'name'}.':'.$self->{'domain'}; 678: return if ($self->temporary()); 679: if ($self->badcalc()){ 680: # do not save data away when calculations have not been done properly. 681: delete($Exportrows{$student}); 682: return; 683: } 684: return if (! exists($Exportrows{$student})); 685: &Apache::assesscalc::save_cached_export_rows($self->{'name'}, 686: $self->{'domain'}); 687: return if (! $self->is_default()); 688: my $key = join(':',($self->{'name'},$self->{'domain'},'studentcalc')).':'; 689: my $timekey = $key.'.time'; 690: my $newstore = join('___;___', 691: @{$Exportrows{$student}->{'data'}}); 692: $newstore = '___=___'.$newstore; 693: my $result= &Apache::lonnet::put('nohist_calculatedsheets', 694: { $key => $newstore, 695: $timekey => $Exportrows{$student}->{'time'} }, 696: $self->{'cdom'}, 697: $self->{'cnum'}); 698: return; 699: } 700: 701: ############################################# 702: ############################################# 703: 704: =pod 705: 706: =item &export_data() 707: 708: Returns the export data associated with the spreadsheet. Computes the 709: spreadsheet only if necessary. 710: 711: =cut 712: 713: ############################################# 714: ############################################# 715: sub export_data { 716: my $self = shift; 717: my ($r) = @_; 718: my $connection = $r->connection(); 719: my $student = $self->{'name'}.':'.$self->{'domain'}; 720: if (! exists($Exportrows{$student}) || 721: ! defined($Exportrows{$student}) || 722: ! exists($Exportrows{$student}->{'data'}) || 723: ! defined($Exportrows{$student}->{'data'}) || 724: ! exists($Exportrows{$student}->{'time'}) || 725: ! defined($Exportrows{$student}->{'time'}) || 726: ! $self->check_expiration_time($Exportrows{$student}->{'time'})) { 727: $self->compute($r); 728: } 729: if ($connection->aborted()) { $self->cleanup(); return; } 730: my @Data; 731: if ($self->badcalc()) { 732: @Data = (); 733: } else { 734: @Data = @{$Exportrows{$student}->{'data'}}; 735: for (my $i=0; $i<=$#Data;$i++) { 736: if ($Data[$i]=~/\D/ && defined($Data[$i])) { 737: $Data[$i]="'".$Data[$i]."'"; 738: } 739: } 740: } 741: return @Data; 742: } 743: 744: 1; 745: 746: __END__