loncom/homework/response.pm - view

File: [LON-CAPA] / loncom / homework / response.pm
Revision 1.241: download - view: text, annotated - select for diffs
Mon Feb 23 19:46:19 2015 UTC (9 years, 2 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD

- Modify how information from user agent is used to determine whether pop-up
  dragmath applet (java) or inline math preview (javascript) should be
  offered. Work in progress.

1: # The LearningOnline Network with CAPA 2: # various response type definitons response definition 3: # 4: # $Id: response.pm,v 1.241 2015/02/23 19:46:19 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: =pod 30: 31: =head1 NAME 32: 33: Apache::response.pm 34: 35: =head1 SYNOPSIS 36: 37: This is part of the LearningOnline Network with CAPA project 38: described at http://www.lon-capa.org. 39: 40: 41: =head1 NOTABLE SUBROUTINES 42: 43: =over 44: 45: =item 46: 47: =back 48: 49: =cut 50: 51: 52: package Apache::response; 53: use strict; 54: use Apache::lonlocal; 55: use Apache::lonnet; 56: use Apache::inputtags(); 57: use Apache::lonmaxima(); 58: use Apache::lonr(); 59: use Apache::lontexconvert(); 60: 61: BEGIN { 62: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse')); 63: } 64: 65: sub start_response { 66: my ($parstack,$safeeval)=@_; 67: my $id = &Apache::lonxml::get_id($parstack,$safeeval); 68: if ($#Apache::inputtags::import > -1) { 69: &Apache::lonxml::debug("Turning :$id: into"); 70: $id = join('_',@Apache::inputtags::import).'_'.$id; 71: &Apache::lonxml::debug("New :$id:"); 72: } 73: push (@Apache::inputtags::response,$id); 74: push (@Apache::inputtags::responselist,$id); 75: @Apache::inputtags::inputlist=(); 76: if ($Apache::inputtags::part eq '' && 77: !$Apache::lonhomework::ignore_response_errors) { 78: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"')); 79: } 80: if ($Apache::inputtags::response_with_no_part && 81: $Apache::inputtags::part ne '0') { 82: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />'); 83: } 84: if ($Apache::inputtags::part eq '0') { 85: $Apache::inputtags::response_with_no_part=1; 86: } 87: return $id; 88: } 89: 90: sub end_response { 91: #pop @Apache::inputtags::response; 92: @Apache::inputtags::inputlist=(); 93: return ''; 94: } 95: 96: sub start_hintresponse { 97: my ($parstack,$safeeval)=@_; 98: my $id = &Apache::lonxml::get_id($parstack,$safeeval); 99: push (@Apache::inputtags::hint,$id); 100: push (@Apache::inputtags::hintlist,$id); 101: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]); 102: return $id; 103: } 104: 105: sub end_hintresponse { 106: pop @Apache::inputtags::hint; 107: if (defined($Apache::inputtags::paramstack[-1])) { 108: %Apache::inputtags::params= 109: @{ pop(@Apache::inputtags::paramstack) }; 110: } 111: return ''; 112: } 113: 114: my @randomseeds; 115: sub pushrandomnumber { 116: my $rand_alg=&Apache::lonnet::get_rand_alg(); 117: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' || 118: $rand_alg eq '64bit2') { 119: # do nothing 120: } else { 121: my @seed=&Math::Random::random_get_seed(); 122: push(@randomseeds,\@seed); 123: } 124: &Apache::response::setrandomnumber(@_); 125: } 126: sub poprandomnumber { 127: my $rand_alg=&Apache::lonnet::get_rand_alg(); 128: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' || 129: $rand_alg eq '64bit2') { 130: return; 131: } 132: my $seed=pop(@randomseeds); 133: if ($seed) { 134: &Math::Random::random_set_seed(@$seed); 135: } else { 136: &Apache::lonxml::error("Unable to restore random algorithm."); 137: } 138: } 139: 140: sub setrandomnumber { 141: my ($ignore_id2,$target,$rndseed) = @_; 142: if (!defined($rndseed)) { 143: $rndseed=&Apache::structuretags::setup_rndseed(undef,$target); 144: } 145: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); } 146: &Apache::lonxml::debug("randseed $rndseed"); 147: # $rndseed=unpack("%32i",$rndseed); 148: my $rand_alg=&Apache::lonnet::get_rand_alg(); 149: my ($rndmod,$rndmod2); 150: 151: my ($id1,$id2,$shift_amt); 152: if ($Apache::lonhomework::parsing_a_problem) { 153: $id1=$Apache::inputtags::part; 154: if (defined($Apache::inputtags::response[-1])) { 155: $id2=$Apache::inputtags::response[-1]; 156: } 157: $shift_amt=scalar(@Apache::inputtags::responselist); 158: } elsif ($Apache::lonhomework::parsing_a_task) { 159: $id1=&Apache::bridgetask::get_dim_id(); 160: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) { 161: $id2=$Apache::bridgetask::instance{$id1}[-1]; 162: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}}); 163: } else { 164: $shift_amt=0; 165: } 166: } 167: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt"); 168: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' || 169: $rand_alg eq '64bit2') { 170: $rndmod=(&Apache::lonnet::numval($id1) << 10); 171: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); } 172: } elsif ($rand_alg eq '64bit3') { 173: $rndmod=(&Apache::lonnet::numval2($id1) << 10); 174: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); } 175: } elsif ($rand_alg eq '64bit4') { 176: my $shift=(4*$shift_amt)%30; 177: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30)); 178: if (defined($id2)) { 179: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift ); 180: } 181: } else { 182: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2"); 183: } 184: if ($rndseed =~/([,:])/) { 185: my $char=$1; 186: use integer; 187: my ($num1,$num2)=split(/\Q$char\E/,$rndseed); 188: $num1+=$rndmod; 189: $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod); 190: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); } 191: $rndseed=$num1.$char.$num2; 192: } else { 193: $rndseed+=$rndmod; 194: if($Apache::lonnet::_64bit) { 195: use integer; 196: $rndseed=(($rndseed<<32)>>32); 197: } 198: } 199: &Apache::lonxml::debug("randseed $rndmod $rndseed"); 200: &Apache::lonnet::setup_random_from_rndseed($rndseed); 201: return ''; 202: } 203: 204: sub meta_parameter_write { 205: my ($name,$type,$default,$display)=@_; 206: my $partref=$Apache::inputtags::part; 207: my $result='<parameter part="'.$Apache::inputtags::part.'"'; 208: if (defined($Apache::inputtags::response[-1])) { 209: $result.= ' id="'.$Apache::inputtags::response[-1].'"'; 210: $partref.='_'.$Apache::inputtags::response[-1]; 211: } 212: $result.= ' name="'.$name.'"'. 213: ' type="'.$type.'"'. 214: (defined($default)?' default="'.$default.'"':''). 215: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'') 216: .'></parameter>' 217: ."\n"; 218: return $result; 219: } 220: 221: sub meta_package_write { 222: my $name=shift; 223: my $result = '<parameter part="'.$Apache::inputtags::part.'"'; 224: if(defined($Apache::inputtags::response[-1])) { 225: $result.= ' id="'.$Apache::inputtags::response[-1].'"'; 226: } 227: $result.=' package="'.$name.'"></parameter>'."\n"; 228: return $result; 229: } 230: 231: sub meta_stores_write { 232: my ($name,$type,$display)=@_; 233: my $partref=$Apache::inputtags::part; 234: my $result = '<stores part="'.$Apache::inputtags::part.'"'; 235: if (defined($Apache::inputtags::response[-1])) { 236: $result.= ' id="'.$Apache::inputtags::response[-1].'"'; 237: $partref.='_'.$Apache::inputtags::response[-1]; 238: } 239: $result.= ' name="'.$name.'"'. 240: ' type="'.$type.'"'. 241: ' display="'.$display.' [Part: '.$partref.']"'. 242: "></stores>\n"; 243: } 244: 245: =pod 246: 247: =item mandatory_part_meta() 248: 249: Autogenerate metadata for mandatory 250: input (from RAT or lonparmset) and 251: output (to lonspreadsheet) 252: of each part 253: 254: Note: responseid-specific data 'submission' and 'awarddetail' 255: not available to spreadsheet -> skip here 256: 257: =cut 258: 259: 260: sub mandatory_part_meta { 261: return &meta_package_write('part'). 262: &meta_stores_write('solved','string','Problem Status'). 263: &meta_stores_write('tries','int_zeropos','Number of Attempts'). 264: &meta_stores_write('awarded','float','Partial Credit Factor'); 265: } 266: 267: sub meta_part_order { 268: if (@Apache::inputtags::partlist) { 269: my @parts=@Apache::inputtags::partlist; 270: shift(@parts); 271: return '<partorder>'.join(',',@parts).'</partorder>'."\n"; 272: } else { 273: return '<partorder>0</partorder>'."\n"; 274: } 275: } 276: 277: sub meta_response_order { 278: if (@Apache::inputtags::responselist) { 279: return '<responseorder>'.join(',',@Apache::inputtags::responselist). 280: '</responseorder>'."\n"; 281: } 282: } 283: 284: sub check_for_previous { 285: my ($curresponse,$partid,$id,$last,$type) = @_; 286: my %previous; 287: $previous{'used'} = 0; 288: my $questiontype = $Apache::lonhomework::type; 289: my $curr_rndseed = $env{'form.'.$partid.'.rndseed'}; 290: foreach my $key (sort(keys(%Apache::lonhomework::history))) { 291: if ($key =~ /resource\.\Q$partid\E\.\Q$id\E\.submission$/) { 292: if ( $last && $key =~ /^(\d+):/ ) { 293: next if ($1 >= $last); 294: } 295: &Apache::lonxml::debug("Trying $key"); 296: my $pastresponse=$Apache::lonhomework::history{$key}; 297: if ($pastresponse eq $curresponse) { 298: my $history; 299: if ( $key =~ /^(\d+):/ ) { 300: $history=$1; 301: next if ((($questiontype eq 'randomizetry') || 302: ($Apache::lonhomework::history{"$history:resource.$partid.type"} eq 'randomizetry')) && 303: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"})); 304: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"}; 305: $previous{'last'}='0'; 306: push(@{ $previous{'version'} },$history); 307: } else { 308: next if ((($questiontype eq 'randomizetry') || 309: ($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry')) && 310: ($curr_rndseed ne $Apache::lonhomework::history{"resource.$partid.rndseed"})); 311: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"}; 312: $previous{'last'}='1'; 313: } 314: $previous{'used'} = 1; 315: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; } 316: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; } 317: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:"); 318: } elsif ($type eq 'ci') { 319: if (lc($pastresponse) eq lc($curresponse)) { 320: if ($key =~ /^(\d+):/) { 321: my $history = $1; 322: next if (($questiontype eq 'randomizetry') && 323: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"})); 324: push (@{$previous{'versionci'}},$history); 325: $previous{'awardci'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"}; 326: $previous{'usedci'} = 1; 327: } 328: } 329: } 330: } 331: } 332: &Apache::lonhomework::showhash(%previous); 333: return %previous; 334: } 335: 336: sub handle_previous { 337: my ($previous,$ad)=@_; 338: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) { 339: if ($$previous{'last'}) { 340: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST'); 341: push(@Apache::inputtags::previous_version,$$previous{'version'}); 342: } elsif (($Apache::lonhomework::type ne 'survey') && 343: ($Apache::lonhomework::type ne 'surveycred') && 344: ($Apache::lonhomework::type ne 'anonsurvey') && 345: ($Apache::lonhomework::type ne 'anonsurveycred')) { 346: push(@Apache::inputtags::previous,'PREVIOUSLY_USED'); 347: push(@Apache::inputtags::previous_version,$$previous{'version'}); 348: } 349: } 350: } 351: 352: sub view_or_modify { 353: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser(); 354: my $myself=0; 355: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) { 356: $myself=1; 357: } 358: my $vgr=&Apache::lonnet::allowed('vgr',$courseid); 359: my $mgr=&Apache::lonnet::allowed('vgr',$courseid); 360: if ($mgr) { return "M"; } 361: if ($vgr) { return "V"; } 362: if ($myself) { return "V"; } 363: return ''; 364: } 365: 366: sub start_dataresponse { 367: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 368: my $id = &Apache::response::start_response($parstack,$safeeval); 369: my $result; 370: if ($target eq 'web') { 371: $result = $token->[2]->{'display'}.':'; 372: } elsif ($target eq 'meta') { 373: $result = &Apache::response::meta_stores_write($token->[2]->{'name'}, 374: $token->[2]->{'type'}, 375: $token->[2]->{'display'}); 376: $result .= &Apache::response::meta_package_write('dataresponse'); 377: } 378: return $result; 379: } 380: 381: sub end_dataresponse { 382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 383: my $result; 384: if ( $target eq 'web' ) { 385: } elsif ($target eq 'grade' ) { 386: if ( defined $env{'form.submitted'}) { 387: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser(); 388: my $allowed=&Apache::lonnet::allowed('mgr',$courseid); 389: if ($allowed) { 390: &Apache::response::setup_params('dataresponse',$safeeval); 391: my $partid = $Apache::inputtags::part; 392: my $id = $Apache::inputtags::response['-1']; 393: my $response = $env{'form.HWVAL_'.$id}; 394: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval); 395: if ( $response =~ /[^\s]/) { 396: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response; 397: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response; 398: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED'; 399: } 400: } else { 401: $result=&mt('Not Permitted to change values'); 402: } 403: } 404: } 405: &Apache::response::end_response; 406: return $result; 407: } 408: 409: sub start_customresponse { 410: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 411: my $id = &Apache::response::start_response($parstack,$safeeval); 412: push(@Apache::lonxml::namespace,'customresponse'); 413: my $result; 414: @Apache::response::custom_answer=(); 415: @Apache::response::custom_answer_type=(); 416: &Apache::lonxml::register('Apache::response',('answer')); 417: if ($target eq 'web') { 418: if ( &Apache::response::show_answer() ) { 419: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack, 420: $safeeval); 421: $Apache::inputtags::answertxt{$id}=[$answer]; 422: } 423: } elsif ($target eq 'edit') { 424: $result.=&Apache::edit::tag_start($target,$token); 425: $result.=&Apache::edit::text_arg('String to display for answer:', 426: 'answerdisplay',$token,'50'); 427: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); 428: } elsif ($target eq 'modified') { 429: my $constructtag; 430: $constructtag=&Apache::edit::get_new_args($token,$parstack, 431: $safeeval,'answerdisplay'); 432: if ($constructtag) { 433: $result = &Apache::edit::rebuild_tag($token); 434: } 435: } elsif ($target eq 'answer' || $target eq 'grade') { 436: &Apache::response::reset_params(); 437: } elsif ($target eq 'meta') { 438: $result .= &Apache::response::meta_package_write('customresponse'); 439: } 440: return $result; 441: } 442: 443: sub end_customresponse { 444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 445: my $result; 446: my $part=$Apache::inputtags::part; 447: my $id=$Apache::inputtags::response[-1]; 448: if ( $target eq 'grade' && &Apache::response::submitted() ) { 449: my $response = &Apache::response::getresponse(); 450: if ($Apache::lonhomework::type eq 'exam' || 451: &Apache::response::submitted('scantron')) { 452: &Apache::response::scored_response($part,$id); 453: } elsif ( $response =~ /[^\s]/ && 454: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') { 455: if (!$Apache::lonxml::default_homework_loaded) { 456: &Apache::lonxml::default_homework_load($safeeval); 457: } 458: my %previous = &Apache::response::check_for_previous($response, 459: $part,$id); 460: $Apache::lonhomework::results{"resource.$part.$id.submission"}= 461: $response; 462: my $error; 463: ${$safeeval->varglob('LONCAPA::customresponse_submission')}= 464: $response; 465: 466: my ($award,$score) = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval); 467: if (!&Apache::inputtags::valid_award($award)) { 468: $error = $award; 469: $award = 'ERROR'; 470: } 471: if (($award eq 'INCORRECT' || $award eq 'APPROX_ANS' || 472: $award eq 'EXACT_ANS')) { 473: if ($Apache::lonhomework::type eq 'survey') { 474: $award='SUBMITTED'; 475: } elsif ($Apache::lonhomework::type eq 'surveycred') { 476: $award='SUBMITTED_CREDIT'; 477: } elsif ($Apache::lonhomework::type eq 'anonsurvey') { 478: $award='ANONYMOUS'; 479: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') { 480: $award='ANONYMOUS_CREDIT'; 481: } 482: } 483: &Apache::response::handle_previous(\%previous,$award); 484: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}= 485: $award; 486: if ($award eq 'ASSIGNED_SCORE') { 487: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=1.0*$score; 488: } 489: if ($error) { 490: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}= 491: $error; 492: } 493: } 494: } elsif ( $target eq 'answer') { 495: $result = &Apache::response::answer_header('customresponse'); 496: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack, 497: $safeeval); 498: if ($env{'form.answer_output_mode'} ne 'tex') { 499: $answer = '<b>'.$answer.'</b>'; 500: } 501: $result .= &Apache::response::answer_part('customresponse',$answer); 502: $result .= &Apache::response::answer_footer('customresponse'); 503: } 504: if ($target eq 'web') { 505: &setup_prior_tries_hash(\&format_prior_response_custom); 506: } 507: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 508: $target eq 'tex' || $target eq 'analyze') { 509: my $repetition = &repetition(); 510: &Apache::lonxml::increment_counter($repetition,"$part.$id"); 511: if ($target eq 'analyze') { 512: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse'; 513: &Apache::lonhomework::set_bubble_lines(); 514: } 515: } 516: pop(@Apache::lonxml::namespace); 517: pop(@Apache::response::custom_answer); 518: pop(@Apache::response::custom_answer_type); 519: &Apache::lonxml::deregister('Apache::response',('answer')); 520: &Apache::response::end_response(); 521: return $result; 522: } 523: 524: sub format_prior_response_custom { 525: my ($mode,$answer) =@_; 526: if (ref($answer) eq 'ARRAY') { 527: $answer = '('.join(', ', @{ $answer }).')'; 528: } 529: return '<span class="LC_prior_custom">'. 530: &HTML::Entities::encode($answer,'"<>&').'</span>'; 531: } 532: 533: sub start_mathresponse { 534: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 535: my $id = &Apache::response::start_response($parstack,$safeeval); 536: push(@Apache::lonxml::namespace,'mathresponse'); 537: my $result; 538: @Apache::response::custom_answer=(); 539: @Apache::response::custom_answer_type=(); 540: &Apache::lonxml::register('Apache::response',('answer')); 541: if ($target eq 'web') { 542: if ( &Apache::response::show_answer() ) { 543: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack, 544: $safeeval); 545: $Apache::inputtags::answertxt{$id}=[$answer]; 546: } 547: 548: } elsif ($target eq 'edit') { 549: $result.=&Apache::edit::tag_start($target,$token); 550: $result.=&Apache::edit::text_arg('String to display for answer:', 551: 'answerdisplay',$token,'50'); 552: $result.=&Apache::edit::select_arg('Algebra System:', 553: 'cas', 554: ['maxima','R'], 555: $token); 556: $result.=&Apache::edit::text_arg('Argument Array:', 557: 'args',$token). 558: &Apache::loncommon::help_open_topic('Maxima_Argument_Array'); 559: $result.=&Apache::edit::text_arg('Libraries:', 560: 'libraries',$token). 561: &Apache::loncommon::help_open_topic('Maxima_Libraries'); 562: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); 563: } elsif ($target eq 'modified') { 564: my $constructtag; 565: $constructtag=&Apache::edit::get_new_args($token,$parstack, 566: $safeeval,'answerdisplay','cas','args','libraries'); 567: if ($constructtag) { 568: $result = &Apache::edit::rebuild_tag($token); 569: } 570: } elsif ($target eq 'answer' || $target eq 'grade') { 571: &Apache::response::reset_params(); 572: } elsif ($target eq 'meta') { 573: $result .= &Apache::response::meta_package_write('mathresponse'); 574: } 575: return $result; 576: } 577: 578: sub edit_mathresponse_button { 579: my ($partid,$id)=@_; 580: my $field = 'HWVAL_'.$partid.'_'.$id; 581: my $eqneditor = 'lcmath'; 582: if ($env{'browser.type'} eq 'safari') { 583: if ($env{'browser.os'} eq 'mac') { 584: my ($prefix,$version) = ($env{'browser.version'} =~ /^(\d*)(\d{3})\./); 585: if ($env{'browser.mobile'}) { 586: if (($version < 531) || (($prefix eq '') && ($version < 533))) { 587: $eqneditor = ''; 588: } 589: } elsif ($version < 522) { 590: $eqneditor = 'dragmath'; 591: } 592: } 593: } elsif ($env{'browser.type'} eq 'explorer') { 594: if ($env{'browser.version'} < 9) { 595: $eqneditor = 'dragmath'; 596: } 597: } elsif ($env{'browser.type'} eq 'mozilla') { 598: if ($env{'browser.version'} < 3) { 599: $eqneditor = 'dragmath'; 600: } else { 601: if ($env{'browser.info'} =~ /^firefox\-([\d\.]+)/) { 602: my $firefox = $1; 603: if ($firefox < 3) { 604: $eqneditor = 'dragmath'; 605: } 606: } 607: } 608: } 609: if ($eqneditor eq 'dragmath') { 610: # DragMath applet 611: my $button=&mt('Edit Answer'); 612: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor'); 613: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'}; 614: return(<<ENDFORMULABUTTON); 615: <script type="text/javascript" language="JavaScript"> 616: function LC_mathedit_${field} (LCtextline) { 617: thenumber = LCtextline; 618: var thedata = ''; 619: if (document.getElementById(LCtextline)) { 620: thedata = document.getElementById(LCtextline).value; 621: } 622: newwin = window.open("/adm/dragmath/MaximaPopup.html","","width=565,height=400,resizable"); 623: } 624: </script> 625: <a href="javascript:LC_mathedit_${field}('${field}');void(0);"><img class="stift" src="$iconpath/stift.gif" alt="$button" title="$button" /></a> 626: ENDFORMULABUTTON 627: } elsif ($eqneditor eq 'lcmath') { 628: # LON-CAPA math equation editor 629: my $mathjaxjs; 630: unless (lc(&Apache::lontexconvert::tex_engine()) eq 'mathjax') { 631: $mathjaxjs = <<"MATHJAX_SCRIPT"; 632: var mathjaxscript = document.createElement("script"); 633: mathjaxscript.type = "text/javascript"; 634: mathjaxscript.src = "/adm/MathJax/MathJax.js?config=TeX-AMS-MML_HTMLorMML"; 635: document.body.appendChild(mathjaxscript); 636: MATHJAX_SCRIPT 637: } 638: return(<<EQ_EDITOR_SCRIPT); 639: <script type="text/javascript"> 640: var LCmathField = document.getElementById('${field}'); 641: LCmathField.className += ' math'; // note the space 642: LCmathField.setAttribute('data-implicit_operators', 'true'); 643: var LCMATH_started; 644: if (typeof LCMATH_started === 'undefined') { 645: $mathjaxjs 646: LCMATH_started = true; 647: var script = document.createElement("script"); 648: script.type = "text/javascript"; 649: script.src = "/adm/LC_math_editor/LC_math_editor.min.js"; 650: document.body.appendChild(script); 651: window.addEventListener('load', function(e) { 652: LCMATH.initEditors(); 653: }, false); 654: } 655: </script> 656: EQ_EDITOR_SCRIPT 657: } 658: } 659: 660: sub end_mathresponse { 661: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 662: my $result; 663: my $part=$Apache::inputtags::part; 664: my $id=$Apache::inputtags::response[-1]; 665: if ( $target eq 'grade' && &Apache::response::submitted() ) { 666: my $response = &Apache::response::getresponse(); 667: if ( $response =~ /[^\s]/ ) { 668: if (!$Apache::lonxml::default_homework_loaded) { 669: &Apache::lonxml::default_homework_load($safeeval); 670: } 671: my %previous = &Apache::response::check_for_previous($response, 672: $part,$id); 673: $Apache::lonhomework::results{"resource.$part.$id.submission"}= 674: $response; 675: my $error; 676: my $award; 677: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval); 678: if ($cas eq 'maxima') { 679: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)]; 680: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args, 681: &Apache::lonxml::get_param('libraries',$parstack,$safeeval)); 682: } 683: if ($cas eq 'R') { 684: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)]; 685: $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args, 686: &Apache::lonxml::get_param('libraries',$parstack,$safeeval)); 687: } 688: 689: if (!&Apache::inputtags::valid_award($award)) { 690: $error = $award; 691: $award = 'ERROR'; 692: } 693: if (($award eq 'INCORRECT' || $award eq 'APPROX_ANS' || 694: $award eq 'EXACT_ANS')) { 695: if ($Apache::lonhomework::type eq 'survey') { 696: $award='SUBMITTED'; 697: } elsif ($Apache::lonhomework::type eq 'surveycred') { 698: $award='SUBMITTED_CREDIT'; 699: } elsif ($Apache::lonhomework::type eq 'anonsurvey') { 700: $award='ANONYMOUS'; 701: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') { 702: $award='ANONYMOUS_CREDIT'; 703: } 704: } 705: &Apache::response::handle_previous(\%previous,$award); 706: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}= 707: $award; 708: if ($error) { 709: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}= 710: $error; 711: } 712: } 713: } 714: if ($target eq 'web') { 715: &setup_prior_tries_hash(\&format_prior_response_math); 716: my $partid = $Apache::inputtags::part; 717: my $id = $Apache::inputtags::response[-1]; 718: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER') 719: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) { 720: $result.=&edit_mathresponse_button($partid,$id); 721: } 722: } 723: 724: pop(@Apache::lonxml::namespace); 725: pop(@Apache::response::custom_answer); 726: pop(@Apache::response::custom_answer_type); 727: &Apache::lonxml::deregister('Apache::response',('answer')); 728: &Apache::response::end_response(); 729: return $result; 730: } 731: 732: sub format_prior_response_math { 733: my ($mode,$answer) =@_; 734: return '<span class="LC_prior_math">'. 735: &HTML::Entities::encode($answer,'"<>&').'</span>'; 736: } 737: 738: sub implicit_multiplication { 739: my ($expression)=@_; 740: # Escape scientific notation, so 3e8 does not become 3*e*8 741: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8 742: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&$$2$/gsi; 743: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8 744: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&$$2$/gsi; 745: # Fill in multiplication signs 746: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4 747: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs; 748: # )( -> )*(; ) ( -> )*( 749: $expression=~s/\)\s*$/$\*$/gs; 750: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A 751: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs; 752: # a ( -> a*( 753: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs; 754: # )a -> )*a; )3 -> )*3; ) 3 -> )*3 755: $expression=~s/$\s*([A-Za-z0-9])/\)\*$1/gs; 756: # 3&8 -> 3e8; 3&-4 -> 3e-4 757: $expression=~s/(\d+)\&$([\+\-]*\d+)$/$1e$2/gs; 758: return $expression; 759: } 760: 761: sub start_answer { 762: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 763: my $result; 764: push(@Apache::response::custom_answer, 765: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser)); 766: push(@Apache::response::custom_answer_type, 767: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval))); 768: $Apache::response::custom_answer_type[-1] =~ s/\s+//g; 769: if ($target eq "edit" ) { 770: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm'); 771: $result.=&Apache::edit::editfield($token->[1], 772: $Apache::response::custom_answer[-1], 773: '',80,4); 774: } elsif ( $target eq "modified" ) { 775: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser); 776: } 777: return $result; 778: } 779: 780: sub end_answer { 781: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 782: if ($target eq 'edit' ) { 783: return &Apache::edit::end_table(); 784: } 785: } 786: 787: sub decide_package { 788: my ($tagstack)=@_; 789: my $package; 790: if ($$tagstack[-1] eq 'parameter') { 791: $package='part'; 792: } else { 793: my $i=-1; 794: while (defined($$tagstack[$i])) { 795: if ($$tagstack[$i] =~ /(response|hint)$/) { 796: $package=$$tagstack[$i]; 797: last; 798: } 799: $i--; 800: } 801: } 802: return $package; 803: } 804: 805: sub start_responseparam { 806: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 807: my $result=''; 808: if ($target eq 'meta') { 809: $result = &meta_parameter_write($token->[2]->{'name'}, 810: $token->[2]->{'type'}, 811: $token->[2]->{'default'}, 812: $token->[2]->{'description'}); 813: } elsif ($target eq 'edit') { 814: $result.=&Apache::edit::tag_start($target,$token); 815: my $optionlist; 816: my $package=&decide_package($tagstack); 817: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) { 818: if ($key =~ /^\Q$package\E&(.*)&display$/) { 819: $optionlist.='<option value="'.$1.'">'. 820: $Apache::lonnet::packagetab{$key}.'</option>'; 821: } 822: } 823: if (defined($optionlist)) { 824: $result.=&mt('Use template:').' <select name="'. 825: &Apache::edit::html_element_name('parameter_package').'">'. 826: '<option value=""></option>'.$optionlist.'</select><br />'; 827: } 828: $result.=&Apache::edit::text_arg('Name:','name',$token). 829: &Apache::edit::text_arg('Type:','type',$token). 830: &Apache::edit::text_arg('Description:','description',$token). 831: &Apache::edit::text_arg('Default:','default',$token). 832: "</td></tr>"; 833: $result.=&Apache::edit::end_table; 834: } elsif ($target eq 'modified') { 835: my $constructtag=&Apache::edit::get_new_args($token,$parstack, 836: $safeeval,'name','type', 837: 'description','default'); 838: my $element=&Apache::edit::html_element_name('parameter_package'); 839: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') { 840: my $name=$env{"form.$element"}; 841: my $tag=&decide_package($tagstack); 842: $token->[2]->{'name'}=$name; 843: $token->[2]->{'type'}= 844: $Apache::lonnet::packagetab{"$tag&$name&type"}; 845: $token->[2]->{'description'}= 846: $Apache::lonnet::packagetab{"$tag&$name&display"}; 847: $token->[2]->{'default'}= 848: $Apache::lonnet::packagetab{"$tag&$name&default"}; 849: $token->[3] = ['name','type','description','default']; 850: $constructtag=1; 851: } 852: if ($constructtag) { 853: $result = &Apache::edit::rebuild_tag($token); 854: } 855: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' || 856: $target eq 'tex' || $target eq 'analyze' ) { 857: if ($env{'request.state'} eq 'construct') { 858: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval); 859: my $default=&Apache::lonxml::get_param('default',$parstack, 860: $safeeval); 861: if ($name) {$Apache::inputtags::params{$name}=$default;} 862: } 863: } 864: return $result; 865: } 866: 867: sub end_responseparam { 868: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 869: if ($target eq 'edit') { return ('','no'); } 870: return ''; 871: } 872: 873: sub start_parameter { 874: return &start_responseparam(@_); 875: } 876: 877: sub end_parameter { 878: return &end_responseparam(@_); 879: } 880: 881: sub reset_params { 882: %Apache::inputtags::params=(); 883: } 884: 885: sub setup_params { 886: my ($tag,$safeeval) = @_; 887: 888: if ($env{'request.state'} eq 'construct') { return; } 889: my %paramlist=(); 890: foreach my $key (keys(%Apache::lonnet::packagetab)) { 891: if ($key =~ /^\Q$tag\E/) { 892: my ($package,$name) = split(/&/,$key); 893: $paramlist{$name}=1; 894: } 895: } 896: foreach my $key (keys(%paramlist)) { 897: my $entry= 'resource.'.$Apache::inputtags::part; 898: if (defined($Apache::inputtags::response[-1])) { 899: $entry.='_'.$Apache::inputtags::response[-1]; 900: } 901: $entry.='.'.$key; 902: &Apache::lonxml::debug("looking for $entry"); 903: my $value = &Apache::lonnet::EXT("$entry"); 904: &Apache::lonxml::debug("$key has value :$value:"); 905: if ($value eq 'con_lost' || $value =~ /^error:/) { 906: &Apache::lonxml::debug("using nothing"); 907: $Apache::inputtags::params{$key}=''; 908: } else { 909: my $string="{return qq\0".$value."\0}"; 910: my $newvalue=&Apache::run::run($string,$safeeval,1); 911: if (defined($newvalue)) { $value=$newvalue; } 912: $Apache::inputtags::params{$key}=$value; 913: } 914: } 915: } 916: 917: { 918: my @answer_bits; 919: my $need_row_start; 920: 921: sub answer_header { 922: my ($type,$increment,$rows) = @_; 923: my $result; 924: if ($env{'form.answer_output_mode'} eq 'tex') { 925: undef(@answer_bits); 926: my $bit; 927: if ($Apache::lonhomework::type eq 'exam') { 928: $bit = ($Apache::lonxml::counter+$increment).') '; 929: } else { 930: $bit .= ' '.&mt('Answer for Part: [_1]', 931: '\verb|'.$Apache::inputtags::part.'|').' '; 932: } 933: push(@answer_bits,$bit); 934: } else { 935: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>'; 936: $result = '<table border="1"><tr>'; 937: if ($Apache::lonhomework::type eq 'exam') { 938: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>'; 939: } else { 940: $result .= $td.&mt('Answer for Part: [_1]', 941: $Apache::inputtags::part).'</td>'; 942: } 943: $result .= "\n"; 944: $need_row_start = 0; 945: } 946: return $result; 947: } 948: 949: sub next_answer { 950: my ($type) = @_; 951: my $result; 952: if ($env{'form.answer_output_mode'} eq 'tex') { 953: # FIXME ... need to do something with tex mode 954: } else { 955: $result .= "</tr>"; 956: $need_row_start = 1; 957: } 958: return $result; 959: } 960: 961: sub answer_part { 962: my ($type,$answer,$args) = @_; 963: my $result; 964: if ($env{'form.answer_output_mode'} eq 'tex') { 965: if (!$args->{'no_verbatim'}) { 966: my $to_use='|'; 967: foreach my $value (32..126) { 968: my $char=pack('c',$value); 969: if ($answer !~ /\Q$char\E/) { 970: $to_use=$char; 971: last; 972: } 973: } 974: my $fullanswer=$answer; 975: $answer=''; 976: foreach my $element (split(/[\;]/,$fullanswer)) { 977: if ($element ne '') { 978: $answer.= '\verb'.$to_use.$element.$to_use.' \newline'; 979: } 980: } 981: } 982: if ($answer ne '') { 983: push(@answer_bits,$answer); 984: } 985: } else { 986: if ($need_row_start) { 987: $result .= '<tr>'; 988: $need_row_start = 0; 989: } 990: $result .= '<td>'.$answer.'</td>'; 991: } 992: return $result; 993: } 994: 995: sub answer_footer { 996: my ($type) = @_; 997: my $result; 998: if ($env{'form.answer_output_mode'} eq 'tex') { 999: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline '; 1000: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}'; 1001: for (my $i=1;$i<=$#answer_bits;$i++) { 1002: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}'; 1003: } 1004: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm '; 1005: } else { 1006: if (!$need_row_start) { 1007: $result .= '</tr>'; 1008: } 1009: $result .= '</table>'; 1010: } 1011: return $result; 1012: } 1013: 1014: } 1015: 1016: sub showallfoils { 1017: if (defined($env{'form.showallfoils'})) { 1018: my ($symb)=&Apache::lonnet::whichuser(); 1019: if (($env{'request.state'} eq 'construct') || 1020: ($env{'user.adv'} && $symb eq '') || 1021: ($Apache::lonhomework::viewgrades) ) { 1022: return 1; 1023: } 1024: } 1025: if ($Apache::lonhomework::type eq 'survey') { return 1; } 1026: if ($Apache::lonhomework::type eq 'surveycred') { return 1; } 1027: if ($Apache::lonhomework::type eq 'anonsurvey') { return 1; } 1028: if ($Apache::lonhomework::type eq 'anonsurveycred') { return 1; } 1029: 1030: return 0; 1031: } 1032: 1033: =pod 1034: 1035: =item &getresponse(); 1036: 1037: Retreives the current submitted response, helps out in the case of 1038: scantron mode. 1039: 1040: Returns either the exact text of the submission, or a bubbled response 1041: converted to something usable. 1042: 1043: Optional Arguments: 1044: $offset - (defaults to 1) if a problem has more than one bubble 1045: response, pass in the number of the bubble wanted, (the 1046: first bubble associated with a problem has an offset of 1, 1047: the second bubble is 2 1048: 1049: $resulttype - undef -> a number between 0 and 25 1050: 'A is 1' -> a number between 1 and 26 1051: 'letter' -> a letter between 'A' and 'Z' 1052: $lines - undef problem only needs a single line of bubbles. 1053: nonzero Problem wants the first nonempty response in 1054: $lines lines of bubbles. 1055: $bubbles_per_line - Must be provided if lines is defined.. number of 1056: bubbles on a line. 1057: 1058: =cut 1059: 1060: sub getresponse { 1061: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_; 1062: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1']; 1063: my $response; 1064: if (!defined($offset)) { 1065: $offset=1; 1066: } else { 1067: $formparm.=":$offset"; 1068: } 1069: if (!defined($lines)) { 1070: $lines = 1; 1071: } 1072: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7, 1073: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14, 1074: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21, 1075: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25); 1076: if ($env{'form.submitted'} eq 'scantron') { 1077: my $part = $Apache::inputtags::part; 1078: my $id = $Apache::inputtags::response[-1]; 1079: 1080: my $line; 1081: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id}; 1082: if (!$startline) { 1083: $startline = $Apache::lonxml::counter; 1084: } 1085: for ($line = 0; $line < $lines; $line++) { 1086: my $theline = $startline+$offset-1+$line; 1087: $response = $env{"scantron.$theline.answer"}; 1088: if ((defined($response)) && ($response ne "") && ($response ne " ")) { 1089: last; 1090: } 1091: 1092: } 1093: 1094: # save bubbled letter for later 1095: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.= 1096: $response; 1097: if ($resulttype ne 'letter') { 1098: $response = $let_to_num{$response}; 1099: if ($resulttype eq 'A is 1') { 1100: if ($response ne "") { 1101: $response = $response+1; 1102: } 1103: } 1104: if ($response ne "") { 1105: $response += $line * $bubbles_per_line; 1106: } 1107: } else { 1108: if ($response ne "") { 1109: my $raw = $response; 1110: $response = chr(ord($response) + $line * $bubbles_per_line); 1111: } 1112: } 1113: 1114: } else { 1115: $response = $env{$formparm}; 1116: } 1117: # 1118: # If we have a nonempty answer, correct the numeric value 1119: # of the answer for the line on which it was found. 1120: # 1121: 1122: return $response; 1123: } 1124: 1125: =pod 1126: 1127: =item &repetition(); 1128: 1129: In scalar context: 1130: 1131: returns: the number of lines that are required to encode the weight. 1132: (Default is for 10 bubbles per bubblesheet item; other (integer) 1133: values can be specified by using a custom Bubblesheet format file 1134: with an eighteenth entry (BubblesPerRow) set to the integer 1135: appropriate for the bubblesheets which will be used to assign weights. 1136: 1137: In array context: 1138: 1139: returns: number of lines required to encode weight, and bubbles/line. 1140: 1141: =cut 1142: 1143: sub repetition { 1144: my $id = $Apache::inputtags::part; 1145: my $weight = &Apache::lonnet::EXT("resource.$id.weight"); 1146: if (!defined($weight) || ($weight eq '')) { $weight=1; } 1147: my $bubbles_per_row; 1148: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) && 1149: ($env{'form.bubbles_per_row'} > 0)) { 1150: $bubbles_per_row = $env{'form.bubbles_per_row'}; 1151: } else { 1152: $bubbles_per_row = 10; 1153: } 1154: my $denominator = $bubbles_per_row; 1155: if (($env{'form.scantron_lastbubblepoints'} == 0) && 1156: ($bubbles_per_row > 1)) { 1157: $denominator = $bubbles_per_row - 1; 1158: } 1159: my $repetition = int($weight/$denominator); 1160: if ($weight % $denominator != 0) { $repetition++; } 1161: if (wantarray) { 1162: return ($repetition,$bubbles_per_row); 1163: } 1164: return $repetition; 1165: 1166: } 1167: 1168: =pod 1169: 1170: =item &scored_response(); 1171: 1172: Sets the results hash elements 1173: 1174: resource.$part_id.$response_id.awarded - to the floating point 1175: number between 0 and 1 that was awarded on the bubbled input 1176: 1177: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE' 1178: 1179: Returns 1180: 1181: the number of bubble sheet lines that were used (and likely need to 1182: be passed to &Apache::lonxml::increment_counter() 1183: 1184: Arguments 1185: 1186: $part_id - id of the part to grade 1187: $response_id - id of the response to grade 1188: 1189: 1190: =cut 1191: 1192: sub scored_response { 1193: my ($part,$id)=@_; 1194: my $repetition=&repetition(); 1195: my $bubbles_per_row; 1196: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) && 1197: ($env{'form.bubbles_per_row'} > 0)) { 1198: $bubbles_per_row = $env{'form.bubbles_per_row'}; 1199: } else { 1200: $bubbles_per_row = 10; 1201: } 1202: my $score=0; 1203: for (my $i=0;$i<$repetition;$i++) { 1204: # A is 1, B is 2, etc. 1205: my $increase=&Apache::response::getresponse($i+1); 1206: unless (($increase == $bubbles_per_row-1) && 1207: ($env{'form.scantron_lastbubblepoints'} == 0)) { 1208: # (get response return 0-9 and then we add 1) 1209: if ($increase ne '') { 1210: $score+=$increase+1; 1211: } 1212: } 1213: } 1214: my $weight = &Apache::lonnet::EXT("resource.$part.weight"); 1215: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; } 1216: my $pcr=$score/$weight; 1217: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr; 1218: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}= 1219: 'ASSIGNED_SCORE'; 1220: return $repetition; 1221: } 1222: 1223: sub whichorder { 1224: my ($max,$randomize,$showall,$hash,$rndseed)=@_; 1225: #&Apache::lonxml::debug("man $max randomize $randomize"); 1226: my @names; 1227: if (ref($hash->{'names'}) eq 'ARRAY') { 1228: @names = @{$hash->{'names'}}; 1229: } 1230: return if (!@names); 1231: my @whichopt =(); 1232: my (%top,@toplist,%bottom,@bottomlist); 1233: if (!($showall || ($randomize eq 'no'))) { 1234: my $current=0; 1235: foreach my $name (@names) { 1236: $current++; 1237: if ($$hash{"$name.location"} eq 'top') { 1238: $top{$name}=$current; 1239: } elsif ($$hash{"$name.location"} eq 'bottom') { 1240: $bottom{$name}=$current; 1241: } 1242: } 1243: } 1244: my $topcount=0; 1245: my $bottomcount=0; 1246: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall) 1247: && ($#names > -1)) { 1248: #&Apache::lonxml::debug("Have $#whichopt max is $max"); 1249: my $aopt; 1250: if ($showall || ($randomize eq 'no')) { 1251: $aopt=0; 1252: } else { 1253: $aopt=int(&Math::Random::random_uniform() * ($#names+1)); 1254: } 1255: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt"); 1256: $aopt=splice(@names,$aopt,1); 1257: #&Apache::lonxml::debug("Picked $aopt"); 1258: if ($top{$aopt}) { 1259: $toplist[$top{$aopt}]=$aopt; 1260: $topcount++; 1261: } elsif ($bottom{$aopt}) { 1262: $bottomlist[$bottom{$aopt}]=$aopt; 1263: $bottomcount++; 1264: } else { 1265: push (@whichopt,$aopt); 1266: } 1267: } 1268: for (my $i=0;$i<=$#toplist;$i++) { 1269: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) } 1270: } 1271: for (my $i=0;$i<=$#bottomlist;$i++) { 1272: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) } 1273: } 1274: return @whichopt; 1275: } 1276: 1277: sub show_answer { 1278: my $part = $Apache::inputtags::part; 1279: my $award = $Apache::lonhomework::history{"resource.$part.solved"}; 1280: my $status = $Apache::inputtags::status[-1]; 1281: my $canshow = 0; 1282: if ($award =~ /^correct/) { 1283: if (($Apache::lonhomework::history{"resource.$part.awarded"} >= 1) || 1284: (&Apache::lonnet::EXT("resource.$part.retrypartial") !~/^1|on|yes$/)) { 1285: $canshow = 1; 1286: } 1287: } 1288: return (($canshow && &Apache::lonhomework::show_problem_status()) 1289: || $status eq "SHOW_ANSWER"); 1290: } 1291: 1292: sub analyze_store_foilgroup { 1293: my ($shown,$attrs)=@_; 1294: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]"; 1295: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) { 1296: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; } 1297: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name); 1298: foreach my $attr (@$attrs) { 1299: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} = 1300: $Apache::response::foilgroup{"$name.".$attr}; 1301: } 1302: } 1303: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown }); 1304: } 1305: 1306: sub check_if_computed { 1307: my ($token,$parstack,$safeeval,$name)=@_; 1308: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval); 1309: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) { 1310: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]"; 1311: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1; 1312: } 1313: } 1314: 1315: sub pick_foil_for_concept { 1316: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_; 1317: my @names; 1318: if (ref($Apache::response::conceptgroup{'names'}) eq 'ARRAY') { 1319: @names = @{ $Apache::response::conceptgroup{'names'} }; 1320: } 1321: return if (!@names); 1322: my $pick=int(&Math::Random::random_uniform() * ($#names+1)); 1323: my $name=$names[$pick]; 1324: push @{ $Apache::response::foilgroup{'names'} }, $name; 1325: foreach my $attr (@$attrs) { 1326: $Apache::response::foilgroup{"$name.".$attr} = 1327: $Apache::response::conceptgroup{"$name.".$attr}; 1328: } 1329: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval); 1330: $Apache::response::foilgroup{"$name.concept"} = $concept; 1331: &Apache::lonxml::debug("Selecting $name in $concept"); 1332: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]"; 1333: if ($target eq 'analyze') { 1334: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} }, 1335: $concept); 1336: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}= 1337: $Apache::response::conceptgroup{'names'}; 1338: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) { 1339: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} }, 1340: $name); 1341: foreach my $attr (@$attrs) { 1342: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}= 1343: $Apache::response::conceptgroup{"$name.$attr"}; 1344: } 1345: } 1346: } 1347: push(@{ $hinthash->{"$part_id.concepts"} },$concept); 1348: $hinthash->{"$part_id.concept.$concept"}= 1349: $Apache::response::conceptgroup{'names'}; 1350: 1351: } 1352: 1353: =pod 1354: 1355: =item get_response_param() 1356: 1357: Get a parameter associated with a problem. 1358: Parameters: 1359: $id - the id of the paramater, either a part id, 1360: or a partid and responspe id joined by _ 1361: $name - Name of the parameter to fetch 1362: $default - Default value for the paramter. 1363: 1364: =cut 1365: 1366: sub get_response_param { 1367: my ($id,$name,$default)=@_; 1368: my $parameter; 1369: if ($env{'request.state'} eq 'construct' && 1370: defined($Apache::inputtags::params{$name})) { 1371: $parameter=$Apache::inputtags::params{$name}; 1372: } else { 1373: $parameter=&Apache::lonnet::EXT("resource.$id.$name"); 1374: } 1375: if (!defined($parameter) || $parameter eq '') { 1376: $parameter = $default; 1377: } 1378: return $parameter; 1379: } 1380: 1381: sub submitted { 1382: my ($who)=@_; 1383: 1384: # when scatron grading any submission is a submission 1385: if ($env{'form.submitted'} eq 'scantron') { return 1; } 1386: # if the caller only cared if this was a scantron submission 1387: if ($who eq 'scantron') { return 0; } 1388: # if the Submit Answer button for this particular part was pressed 1389: my $partid=$Apache::inputtags::part; 1390: if ($env{'form.submitted'} eq "part_$partid") { 1391: return 1; 1392: } 1393: if ($env{'form.submitted'} eq "yes" 1394: && defined($env{'form.submit_'.$partid})) { 1395: return 1; 1396: } 1397: # Submit All button on a .page was pressed 1398: if (defined($env{'form.all_submit'})) { return 1; } 1399: # otherwise no submission occurred 1400: return 0; 1401: } 1402: 1403: sub add_to_gradingqueue { 1404: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser(); 1405: if ( $courseid eq '' 1406: || $symb eq '' 1407: || $env{'request.state'} eq 'construct' 1408: || $Apache::lonhomework::type ne 'problem') { 1409: return; 1410: } 1411: 1412: my %queue_info = ( 'type' => 'problem', 1413: 'time' => time); 1414: 1415: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) { 1416: $queue_info{'slot'}= 1417: $Apache::lonhomework::history{"resource.0.checkedin.slot"}; 1418: } 1419: 1420: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info); 1421: if ($result ne 'ok') { 1422: &Apache::lonxml::error("add_to_queue said $result"); 1423: } 1424: } 1425: 1426: =pod 1427: 1428: =item check_status() 1429: 1430: basically undef and 0 (both false) mean that they still have work to do 1431: and all true values mean that they can't do any more work 1432: 1433: a return of undef means it is unattempted 1434: a return of 0 means it is attmpted and wrong but still has tries 1435: a return of 1 means it is marked correct 1436: a return of 2 means they have exceed maximum number of tries 1437: a return of 3 means it after the answer date 1438: 1439: =cut 1440: 1441: sub check_status { 1442: my ($id)=@_; 1443: if (!defined($id)) { $id=$Apache::inputtags::part; } 1444: my $curtime=&Apache::lonnet::EXT('system.time'); 1445: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate"); 1446: my $duedate=&Apache::lonhomework::due_date($id); 1447: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate"); 1448: if ( $opendate && $curtime > $opendate && 1449: $duedate && $curtime > $duedate && 1450: $answerdate && $curtime > $answerdate) { 1451: return 3; 1452: } 1453: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved"); 1454: if ($status =~ /^correct/) { return 1; } 1455: if (!$status) { return undef; } 1456: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries"); 1457: if ($maxtries eq '') { $maxtries=2; } 1458: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries"); 1459: if ($curtries < $maxtries) { return 0; } 1460: return 2; 1461: } 1462: 1463: =pod 1464: 1465: =item setup_prior_tries_hash() 1466: 1467: Foreach each past .submission $func is called with 3 arguments 1468: - the mode to set things up for (currently always 'grade') 1469: - the stored .submission string 1470: - The expansion of $data 1471: 1472: $data is an array ref containing elements that are either 1473: - scalars that are other elements of the history hash to pass to $func 1474: - ref to data to be passed untouched to $func 1475: 1476: $questiontype is the questiontype (currently only passed in if 1477: randomizebytry. 1478: 1479: =cut 1480: 1481: sub setup_prior_tries_hash { 1482: my ($func,$data,$questiontype) = @_; 1483: my $part = $Apache::inputtags::part; 1484: my $id = $Apache::inputtags::response[-1]; 1485: foreach my $i (1..$Apache::lonhomework::history{'version'}) { 1486: my $partprefix = "$i:resource.$part"; 1487: my $sub_key = "$partprefix.$id.submission"; 1488: next if (!exists($Apache::lonhomework::history{$sub_key})); 1489: my $type_key = "$partprefix.type"; 1490: my $type = $Apache::lonhomework::history{$type_key}; 1491: my @other_data; 1492: if (ref($data) eq 'ARRAY') { 1493: foreach my $datum (@{ $data }) { 1494: if (ref($datum)) { 1495: push(@other_data,$datum); 1496: } else { 1497: my $info_key = "$i:resource.$part.$id.$datum"; 1498: push(@other_data,$Apache::lonhomework::history{$info_key}); 1499: } 1500: } 1501: } 1502: if ($questiontype eq 'randomizetry') { 1503: my $order_key = "$partprefix.$id.foilorder"; 1504: my @whichopts = &Apache::lonnet::str2array($Apache::lonhomework::history{$order_key}); 1505: if (@whichopts > 0) { 1506: shift(@other_data); 1507: unshift(@other_data,\@whichopts); 1508: } 1509: } 1510: my $output = 1511: &$func('grade', 1512: $Apache::lonhomework::history{$sub_key}, 1513: \@other_data); 1514: if (defined($output)) { 1515: $Apache::inputtags::submission_display{$sub_key} = $output; 1516: } 1517: } 1518: } 1519: 1520: 1; 1521: __END__ 1522: 1523: =pod 1524: 1525: =cut