loncom/homework/response.pm - view

File: [LON-CAPA] / loncom / homework / response.pm
Revision 1.228: download - view: text, annotated - select for diffs
Tue Nov 29 13:24:38 2011 UTC (12 years, 5 months ago) by raeburn
Branches: MAIN
CVS tags: HEAD

- Bug 2802.
  - optionresponse::is_nonlenient() moved to inputtags::grading_is_nonlenient()
    to facilitate re-use.
  - where solved is "correct", awarded value < 1 permits new submission,
    only if lenient grading applies.
  - add lenient parameter to custompartial.problem template.

1: # The LearningOnline Network with CAPA 2: # various response type definitons response definition 3: # 4: # $Id: response.pm,v 1.228 2011/11/29 13:24:38 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: 60: BEGIN { 61: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse')); 62: } 63: 64: sub start_response { 65: my ($parstack,$safeeval)=@_; 66: my $id = &Apache::lonxml::get_id($parstack,$safeeval); 67: if ($#Apache::inputtags::import > -1) { 68: &Apache::lonxml::debug("Turning :$id: into"); 69: $id = join('_',@Apache::inputtags::import).'_'.$id; 70: &Apache::lonxml::debug("New :$id:"); 71: } 72: push (@Apache::inputtags::response,$id); 73: push (@Apache::inputtags::responselist,$id); 74: @Apache::inputtags::inputlist=(); 75: if ($Apache::inputtags::part eq '' && 76: !$Apache::lonhomework::ignore_response_errors) { 77: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"')); 78: } 79: if ($Apache::inputtags::response_with_no_part && 80: $Apache::inputtags::part ne '0') { 81: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />'); 82: } 83: if ($Apache::inputtags::part eq '0') { 84: $Apache::inputtags::response_with_no_part=1; 85: } 86: return $id; 87: } 88: 89: sub end_response { 90: #pop @Apache::inputtags::response; 91: @Apache::inputtags::inputlist=(); 92: return ''; 93: } 94: 95: sub start_hintresponse { 96: my ($parstack,$safeeval)=@_; 97: my $id = &Apache::lonxml::get_id($parstack,$safeeval); 98: push (@Apache::inputtags::hint,$id); 99: push (@Apache::inputtags::hintlist,$id); 100: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]); 101: return $id; 102: } 103: 104: sub end_hintresponse { 105: pop @Apache::inputtags::hint; 106: if (defined($Apache::inputtags::paramstack[-1])) { 107: %Apache::inputtags::params= 108: @{ pop(@Apache::inputtags::paramstack) }; 109: } 110: return ''; 111: } 112: 113: my @randomseeds; 114: sub pushrandomnumber { 115: my $rand_alg=&Apache::lonnet::get_rand_alg(); 116: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' || 117: $rand_alg eq '64bit2') { 118: # do nothing 119: } else { 120: my @seed=&Math::Random::random_get_seed(); 121: push(@randomseeds,\@seed); 122: } 123: &Apache::response::setrandomnumber(@_); 124: } 125: sub poprandomnumber { 126: my $rand_alg=&Apache::lonnet::get_rand_alg(); 127: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' || 128: $rand_alg eq '64bit2') { 129: return; 130: } 131: my $seed=pop(@randomseeds); 132: if ($seed) { 133: &Math::Random::random_set_seed(@$seed); 134: } else { 135: &Apache::lonxml::error("Unable to restore random algorithm."); 136: } 137: } 138: 139: sub setrandomnumber { 140: my ($ignore_id2,$target,$rndseed) = @_; 141: if (!defined($rndseed)) { 142: $rndseed=&Apache::structuretags::setup_rndseed(undef,$target); 143: } 144: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); } 145: &Apache::lonxml::debug("randseed $rndseed"); 146: # $rndseed=unpack("%32i",$rndseed); 147: my $rand_alg=&Apache::lonnet::get_rand_alg(); 148: my ($rndmod,$rndmod2); 149: 150: my ($id1,$id2,$shift_amt); 151: if ($Apache::lonhomework::parsing_a_problem) { 152: $id1=$Apache::inputtags::part; 153: if (defined($Apache::inputtags::response[-1])) { 154: $id2=$Apache::inputtags::response[-1]; 155: } 156: $shift_amt=scalar(@Apache::inputtags::responselist); 157: } elsif ($Apache::lonhomework::parsing_a_task) { 158: $id1=&Apache::bridgetask::get_dim_id(); 159: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) { 160: $id2=$Apache::bridgetask::instance{$id1}[-1]; 161: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}}); 162: } else { 163: $shift_amt=0; 164: } 165: } 166: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt"); 167: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' || 168: $rand_alg eq '64bit2') { 169: $rndmod=(&Apache::lonnet::numval($id1) << 10); 170: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); } 171: } elsif ($rand_alg eq '64bit3') { 172: $rndmod=(&Apache::lonnet::numval2($id1) << 10); 173: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); } 174: } elsif ($rand_alg eq '64bit4') { 175: my $shift=(4*$shift_amt)%30; 176: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30)); 177: if (defined($id2)) { 178: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift ); 179: } 180: } else { 181: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2"); 182: } 183: $Apache::lonhomework::results{'resource.'.$id1.'.rawrndseed'}=$rndseed; 184: if ($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: $Apache::lonhomework::results{'resource.'.$id1.'.rndseed'}=$rndseed; 201: &Apache::lonnet::setup_random_from_rndseed($rndseed); 202: return ''; 203: } 204: 205: sub meta_parameter_write { 206: my ($name,$type,$default,$display)=@_; 207: my $partref=$Apache::inputtags::part; 208: my $result='<parameter part="'.$Apache::inputtags::part.'"'; 209: if (defined($Apache::inputtags::response[-1])) { 210: $result.= ' id="'.$Apache::inputtags::response[-1].'"'; 211: $partref.='_'.$Apache::inputtags::response[-1]; 212: } 213: $result.= ' name="'.$name.'"'. 214: ' type="'.$type.'"'. 215: (defined($default)?' default="'.$default.'"':''). 216: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'') 217: .'></parameter>' 218: ."\n"; 219: return $result; 220: } 221: 222: sub meta_package_write { 223: my $name=shift; 224: my $result = '<parameter part="'.$Apache::inputtags::part.'"'; 225: if(defined($Apache::inputtags::response[-1])) { 226: $result.= ' id="'.$Apache::inputtags::response[-1].'"'; 227: } 228: $result.=' package="'.$name.'"></parameter>'."\n"; 229: return $result; 230: } 231: 232: sub meta_stores_write { 233: my ($name,$type,$display)=@_; 234: my $partref=$Apache::inputtags::part; 235: my $result = '<stores part="'.$Apache::inputtags::part.'"'; 236: if (defined($Apache::inputtags::response[-1])) { 237: $result.= ' id="'.$Apache::inputtags::response[-1].'"'; 238: $partref.='_'.$Apache::inputtags::response[-1]; 239: } 240: $result.= ' name="'.$name.'"'. 241: ' type="'.$type.'"'. 242: ' display="'.$display.' [Part: '.$partref.']"'. 243: "></stores>\n"; 244: } 245: 246: =pod 247: 248: =item mandatory_part_meta() 249: 250: Autogenerate metadata for mandatory 251: input (from RAT or lonparmset) and 252: output (to lonspreadsheet) 253: of each part 254: 255: Note: responseid-specific data 'submission' and 'awarddetail' 256: not available to spreadsheet -> skip here 257: 258: =cut 259: 260: 261: sub mandatory_part_meta { 262: return &meta_package_write('part'). 263: &meta_stores_write('solved','string','Problem Status'). 264: &meta_stores_write('tries','int_zeropos','Number of Attempts'). 265: &meta_stores_write('awarded','float','Partial Credit Factor'); 266: } 267: 268: sub meta_part_order { 269: if (@Apache::inputtags::partlist) { 270: my @parts=@Apache::inputtags::partlist; 271: shift(@parts); 272: return '<partorder>'.join(',',@parts).'</partorder>'."\n"; 273: } else { 274: return '<partorder>0</partorder>'."\n"; 275: } 276: } 277: 278: sub meta_response_order { 279: if (@Apache::inputtags::responselist) { 280: return '<responseorder>'.join(',',@Apache::inputtags::responselist). 281: '</responseorder>'."\n"; 282: } 283: } 284: 285: sub check_for_previous { 286: my ($curresponse,$partid,$id,$last,$type) = @_; 287: my %previous; 288: $previous{'used'} = 0; 289: my $questiontype = $Apache::lonhomework::type; 290: my $curr_rndseed = $env{'form.'.$partid.'.rndseed'}; 291: foreach my $key (sort(keys(%Apache::lonhomework::history))) { 292: if ($key =~ /resource\.\Q$partid\E\.\Q$id\E\.submission$/) { 293: if ( $last && $key =~ /^(\d+):/ ) { 294: next if ($1 >= $last); 295: } 296: &Apache::lonxml::debug("Trying $key"); 297: my $pastresponse=$Apache::lonhomework::history{$key}; 298: if ($pastresponse eq $curresponse) { 299: my $history; 300: if ( $key =~ /^(\d+):/ ) { 301: $history=$1; 302: next if ((($questiontype eq 'randomizetry') || 303: ($Apache::lonhomework::history{"$history:resource.$partid.type"} eq 'randomizetry')) && 304: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"})); 305: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"}; 306: $previous{'last'}='0'; 307: push(@{ $previous{'version'} },$history); 308: } else { 309: next if ((($questiontype eq 'randomizetry') || 310: ($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry')) && 311: ($curr_rndseed ne $Apache::lonhomework::history{"resource.$partid.rndseed"})); 312: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"}; 313: $previous{'last'}='1'; 314: } 315: $previous{'used'} = 1; 316: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; } 317: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; } 318: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:"); 319: } elsif ($type eq 'ci') { 320: if (lc($pastresponse) eq lc($curresponse)) { 321: if ($key =~ /^(\d+):/) { 322: my $history = $1; 323: next if (($questiontype eq 'randomizetry') && 324: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"})); 325: push (@{$previous{'versionci'}},$history); 326: $previous{'awardci'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"}; 327: $previous{'usedci'} = 1; 328: } 329: } 330: } 331: } 332: } 333: &Apache::lonhomework::showhash(%previous); 334: return %previous; 335: } 336: 337: sub handle_previous { 338: my ($previous,$ad)=@_; 339: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) { 340: if ($$previous{'last'}) { 341: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST'); 342: push(@Apache::inputtags::previous_version,$$previous{'version'}); 343: } elsif (($Apache::lonhomework::type ne 'survey') && 344: ($Apache::lonhomework::type ne 'surveycred') && 345: ($Apache::lonhomework::type ne 'anonsurvey') && 346: ($Apache::lonhomework::type ne 'anonsurveycred')) { 347: push(@Apache::inputtags::previous,'PREVIOUSLY_USED'); 348: push(@Apache::inputtags::previous_version,$$previous{'version'}); 349: } 350: } 351: } 352: 353: sub view_or_modify { 354: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser(); 355: my $myself=0; 356: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) { 357: $myself=1; 358: } 359: my $vgr=&Apache::lonnet::allowed('vgr',$courseid); 360: my $mgr=&Apache::lonnet::allowed('vgr',$courseid); 361: if ($mgr) { return "M"; } 362: if ($vgr) { return "V"; } 363: if ($myself) { return "V"; } 364: return ''; 365: } 366: 367: sub start_dataresponse { 368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 369: my $id = &Apache::response::start_response($parstack,$safeeval); 370: my $result; 371: if ($target eq 'web') { 372: $result = $token->[2]->{'display'}.':'; 373: } elsif ($target eq 'meta') { 374: $result = &Apache::response::meta_stores_write($token->[2]->{'name'}, 375: $token->[2]->{'type'}, 376: $token->[2]->{'display'}); 377: $result .= &Apache::response::meta_package_write('dataresponse'); 378: } 379: return $result; 380: } 381: 382: sub end_dataresponse { 383: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 384: my $result; 385: if ( $target eq 'web' ) { 386: } elsif ($target eq 'grade' ) { 387: if ( defined $env{'form.submitted'}) { 388: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser(); 389: my $allowed=&Apache::lonnet::allowed('mgr',$courseid); 390: if ($allowed) { 391: &Apache::response::setup_params('dataresponse',$safeeval); 392: my $partid = $Apache::inputtags::part; 393: my $id = $Apache::inputtags::response['-1']; 394: my $response = $env{'form.HWVAL_'.$id}; 395: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval); 396: if ( $response =~ /[^\s]/) { 397: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response; 398: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response; 399: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED'; 400: } 401: } else { 402: $result='Not Permitted to change values.' 403: } 404: } 405: } 406: &Apache::response::end_response; 407: return $result; 408: } 409: 410: sub start_customresponse { 411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 412: my $id = &Apache::response::start_response($parstack,$safeeval); 413: push(@Apache::lonxml::namespace,'customresponse'); 414: my $result; 415: @Apache::response::custom_answer=(); 416: @Apache::response::custom_answer_type=(); 417: &Apache::lonxml::register('Apache::response',('answer')); 418: if ($target eq 'web') { 419: if ( &Apache::response::show_answer() ) { 420: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack, 421: $safeeval); 422: $Apache::inputtags::answertxt{$id}=[$answer]; 423: } 424: } elsif ($target eq 'edit') { 425: $result.=&Apache::edit::tag_start($target,$token); 426: $result.=&Apache::edit::text_arg('String to display for answer:', 427: 'answerdisplay',$token,'50'); 428: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); 429: } elsif ($target eq 'modified') { 430: my $constructtag; 431: $constructtag=&Apache::edit::get_new_args($token,$parstack, 432: $safeeval,'answerdisplay'); 433: if ($constructtag) { 434: $result = &Apache::edit::rebuild_tag($token); 435: } 436: } elsif ($target eq 'answer' || $target eq 'grade') { 437: &Apache::response::reset_params(); 438: } elsif ($target eq 'meta') { 439: $result .= &Apache::response::meta_package_write('customresponse'); 440: } 441: return $result; 442: } 443: 444: sub end_customresponse { 445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 446: my $result; 447: my $part=$Apache::inputtags::part; 448: my $id=$Apache::inputtags::response[-1]; 449: if ( $target eq 'grade' && &Apache::response::submitted() ) { 450: my $response = &Apache::response::getresponse(); 451: if ($Apache::lonhomework::type eq 'exam' || 452: &Apache::response::submitted('scantron')) { 453: &Apache::response::scored_response($part,$id); 454: } elsif ( $response =~ /[^\s]/ && 455: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') { 456: if (!$Apache::lonxml::default_homework_loaded) { 457: &Apache::lonxml::default_homework_load($safeeval); 458: } 459: my %previous = &Apache::response::check_for_previous($response, 460: $part,$id); 461: $Apache::lonhomework::results{"resource.$part.$id.submission"}= 462: $response; 463: my $error; 464: ${$safeeval->varglob('LONCAPA::customresponse_submission')}= 465: $response; 466: 467: my ($award,$score) = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval); 468: if (!&Apache::inputtags::valid_award($award)) { 469: $error = $award; 470: $award = 'ERROR'; 471: } 472: &Apache::response::handle_previous(\%previous,$award); 473: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}= 474: $award; 475: if ($award eq 'ASSIGNED_SCORE') { 476: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=1.0*$score; 477: } 478: if ($error) { 479: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}= 480: $error; 481: } 482: } 483: } elsif ( $target eq 'answer') { 484: $result = &Apache::response::answer_header('customresponse'); 485: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack, 486: $safeeval); 487: if ($env{'form.answer_output_mode'} ne 'tex') { 488: $answer = '<b>'.$answer.'</b>'; 489: } 490: $result .= &Apache::response::answer_part('customresponse',$answer); 491: $result .= &Apache::response::answer_footer('customresponse'); 492: } 493: if ($target eq 'web') { 494: &setup_prior_tries_hash(\&format_prior_response_math); 495: } 496: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || 497: $target eq 'tex' || $target eq 'analyze') { 498: my $repetition = &repetition(); 499: &Apache::lonxml::increment_counter($repetition,"$part.$id"); 500: if ($target eq 'analyze') { 501: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse'; 502: &Apache::lonhomework::set_bubble_lines(); 503: } 504: } 505: pop(@Apache::lonxml::namespace); 506: pop(@Apache::response::custom_answer); 507: pop(@Apache::response::custom_answer_type); 508: &Apache::lonxml::deregister('Apache::response',('answer')); 509: &Apache::response::end_response(); 510: return $result; 511: } 512: 513: sub format_prior_response_custom { 514: my ($mode,$answer) =@_; 515: return '<span class="LC_prior_custom">'. 516: &HTML::Entities::encode($answer,'"<>&').'</span>'; 517: } 518: 519: sub start_mathresponse { 520: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 521: my $id = &Apache::response::start_response($parstack,$safeeval); 522: push(@Apache::lonxml::namespace,'mathresponse'); 523: my $result; 524: @Apache::response::custom_answer=(); 525: @Apache::response::custom_answer_type=(); 526: &Apache::lonxml::register('Apache::response',('answer')); 527: if ($target eq 'web') { 528: if ( &Apache::response::show_answer() ) { 529: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack, 530: $safeeval); 531: $Apache::inputtags::answertxt{$id}=[$answer]; 532: } 533: 534: } elsif ($target eq 'edit') { 535: $result.=&Apache::edit::tag_start($target,$token); 536: $result.=&Apache::edit::text_arg('String to display for answer:', 537: 'answerdisplay',$token,'50'); 538: $result.=&Apache::edit::select_arg('Algebra System:', 539: 'cas', 540: ['maxima','R'], 541: $token); 542: $result.=&Apache::edit::text_arg('Argument Array:', 543: 'args',$token). 544: &Apache::loncommon::help_open_topic('Maxima_Argument_Array'); 545: $result.=&Apache::edit::text_arg('Libraries:', 546: 'libraries',$token). 547: &Apache::loncommon::help_open_topic('Maxima_Libraries'); 548: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); 549: } elsif ($target eq 'modified') { 550: my $constructtag; 551: $constructtag=&Apache::edit::get_new_args($token,$parstack, 552: $safeeval,'answerdisplay','cas','args','libraries'); 553: if ($constructtag) { 554: $result = &Apache::edit::rebuild_tag($token); 555: } 556: } elsif ($target eq 'answer' || $target eq 'grade') { 557: &Apache::response::reset_params(); 558: } elsif ($target eq 'meta') { 559: $result .= &Apache::response::meta_package_write('mathresponse'); 560: } 561: return $result; 562: } 563: 564: sub edit_mathresponse_button { 565: my ($id,$field)=@_; 566: my $button=&mt('Edit Answer'); 567: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor'); 568: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'}; 569: return(<<ENDFORMULABUTTON); 570: <script type="text/javascript" language="JavaScript"> 571: function edit_${id}_${field} (textarea) { 572: thenumber = textarea; 573: thedata = document.forms['lonhomework'].elements[textarea].value; 574: newwin = window.open("/adm/dragmath/applet/MaximaPopup.html","","width=565,height=400,resizable"); 575: } 576: </script> 577: <a href="javascript:edit_${id}_${field}('${field}');void(0);"><img class="stift" src="$iconpath/stift.gif" alt="$button" title="$button" /></a> 578: ENDFORMULABUTTON 579: } 580: 581: sub end_mathresponse { 582: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 583: my $result; 584: my $part=$Apache::inputtags::part; 585: my $id=$Apache::inputtags::response[-1]; 586: if ( $target eq 'grade' && &Apache::response::submitted() ) { 587: my $response = &Apache::response::getresponse(); 588: if ( $response =~ /[^\s]/ ) { 589: if (!$Apache::lonxml::default_homework_loaded) { 590: &Apache::lonxml::default_homework_load($safeeval); 591: } 592: my %previous = &Apache::response::check_for_previous($response, 593: $part,$id); 594: $Apache::lonhomework::results{"resource.$part.$id.submission"}= 595: $response; 596: my $error; 597: my $award; 598: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval); 599: if ($cas eq 'maxima') { 600: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)]; 601: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args, 602: &Apache::lonxml::get_param('libraries',$parstack,$safeeval)); 603: } 604: if ($cas eq 'R') { 605: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)]; 606: $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args, 607: &Apache::lonxml::get_param('libraries',$parstack,$safeeval)); 608: } 609: 610: if (!&Apache::inputtags::valid_award($award)) { 611: $error = $award; 612: $award = 'ERROR'; 613: } 614: &Apache::response::handle_previous(\%previous,$award); 615: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}= 616: $award; 617: if ($error) { 618: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}= 619: $error; 620: } 621: } 622: } 623: if ($target eq 'web') { 624: &setup_prior_tries_hash(\&format_prior_response_math); 625: my $partid = $Apache::inputtags::part; 626: my $id = $Apache::inputtags::response[-1]; 627: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER') 628: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) { 629: $result.=&edit_mathresponse_button($id,"HWVAL_$id"); 630: } 631: } 632: 633: pop(@Apache::lonxml::namespace); 634: pop(@Apache::response::custom_answer); 635: pop(@Apache::response::custom_answer_type); 636: &Apache::lonxml::deregister('Apache::response',('answer')); 637: &Apache::response::end_response(); 638: return $result; 639: } 640: 641: sub format_prior_response_math { 642: my ($mode,$answer) =@_; 643: return '<span class="LC_prior_math">'. 644: &HTML::Entities::encode($answer,'"<>&').'</span>'; 645: } 646: 647: sub implicit_multiplication { 648: my ($expression)=@_; 649: # Escape scientific notation, so 3e8 does not become 3*e*8 650: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8 651: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&$$2$/gsi; 652: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8 653: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&$$2$/gsi; 654: # Fill in multiplication signs 655: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4 656: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs; 657: # )( -> )*(; ) ( -> )*( 658: $expression=~s/\)\s*$/$\*$/gs; 659: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A 660: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs; 661: # a ( -> a*( 662: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs; 663: # )a -> )*a; )3 -> )*3; ) 3 -> )*3 664: $expression=~s/$\s*([A-Za-z0-9])/\)\*$1/gs; 665: # 3&8 -> 3e8; 3&-4 -> 3e-4 666: $expression=~s/(\d+)\&$([\+\-]*\d+)$/$1e$2/gs; 667: return $expression; 668: } 669: 670: sub start_answer { 671: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 672: my $result; 673: push(@Apache::response::custom_answer, 674: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser)); 675: push(@Apache::response::custom_answer_type, 676: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval))); 677: $Apache::response::custom_answer_type[-1] =~ s/\s+//g; 678: if ($target eq "edit" ) { 679: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm'); 680: $result.=&Apache::edit::editfield($token->[1], 681: $Apache::response::custom_answer[-1], 682: '',80,4); 683: } elsif ( $target eq "modified" ) { 684: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser); 685: } 686: return $result; 687: } 688: 689: sub end_answer { 690: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 691: if ($target eq 'edit' ) { 692: return &Apache::edit::end_table(); 693: } 694: } 695: 696: sub decide_package { 697: my ($tagstack)=@_; 698: my $package; 699: if ($$tagstack[-1] eq 'parameter') { 700: $package='part'; 701: } else { 702: my $i=-1; 703: while (defined($$tagstack[$i])) { 704: if ($$tagstack[$i] =~ /(response|hint)$/) { 705: $package=$$tagstack[$i]; 706: last; 707: } 708: $i--; 709: } 710: } 711: return $package; 712: } 713: 714: sub start_responseparam { 715: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 716: my $result=''; 717: if ($target eq 'meta') { 718: $result = &meta_parameter_write($token->[2]->{'name'}, 719: $token->[2]->{'type'}, 720: $token->[2]->{'default'}, 721: $token->[2]->{'description'}); 722: } elsif ($target eq 'edit') { 723: $result.=&Apache::edit::tag_start($target,$token); 724: my $optionlist; 725: my $package=&decide_package($tagstack); 726: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) { 727: if ($key =~ /^\Q$package\E&(.*)&display$/) { 728: $optionlist.='<option value="'.$1.'">'. 729: $Apache::lonnet::packagetab{$key}.'</option>'; 730: } 731: } 732: if (defined($optionlist)) { 733: $result.=&mt('Use template:').' <select name="'. 734: &Apache::edit::html_element_name('parameter_package').'">'. 735: '<option value=""></option>'.$optionlist.'</select><br />'; 736: } 737: $result.=&Apache::edit::text_arg('Name:','name',$token). 738: &Apache::edit::text_arg('Type:','type',$token). 739: &Apache::edit::text_arg('Description:','description',$token). 740: &Apache::edit::text_arg('Default:','default',$token). 741: "</td></tr>"; 742: $result.=&Apache::edit::end_table; 743: } elsif ($target eq 'modified') { 744: my $constructtag=&Apache::edit::get_new_args($token,$parstack, 745: $safeeval,'name','type', 746: 'description','default'); 747: my $element=&Apache::edit::html_element_name('parameter_package'); 748: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') { 749: my $name=$env{"form.$element"}; 750: my $tag=&decide_package($tagstack); 751: $token->[2]->{'name'}=$name; 752: $token->[2]->{'type'}= 753: $Apache::lonnet::packagetab{"$tag&$name&type"}; 754: $token->[2]->{'description'}= 755: $Apache::lonnet::packagetab{"$tag&$name&display"}; 756: $token->[2]->{'default'}= 757: $Apache::lonnet::packagetab{"$tag&$name&default"}; 758: $token->[3] = ['name','type','description','default']; 759: $constructtag=1; 760: } 761: if ($constructtag) { 762: $result = &Apache::edit::rebuild_tag($token); 763: } 764: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' || 765: $target eq 'tex' || $target eq 'analyze' ) { 766: if ($env{'request.state'} eq 'construct') { 767: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval); 768: my $default=&Apache::lonxml::get_param('default',$parstack, 769: $safeeval); 770: if ($name) {$Apache::inputtags::params{$name}=$default;} 771: } 772: } 773: return $result; 774: } 775: 776: sub end_responseparam { 777: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 778: if ($target eq 'edit') { return ('','no'); } 779: return ''; 780: } 781: 782: sub start_parameter { 783: return &start_responseparam(@_); 784: } 785: 786: sub end_parameter { 787: return &end_responseparam(@_); 788: } 789: 790: sub reset_params { 791: %Apache::inputtags::params=(); 792: } 793: 794: sub setup_params { 795: my ($tag,$safeeval) = @_; 796: 797: if ($env{'request.state'} eq 'construct') { return; } 798: my %paramlist=(); 799: foreach my $key (keys(%Apache::lonnet::packagetab)) { 800: if ($key =~ /^\Q$tag\E/) { 801: my ($package,$name) = split(/&/,$key); 802: $paramlist{$name}=1; 803: } 804: } 805: foreach my $key (keys(%paramlist)) { 806: my $entry= 'resource.'.$Apache::inputtags::part; 807: if (defined($Apache::inputtags::response[-1])) { 808: $entry.='_'.$Apache::inputtags::response[-1]; 809: } 810: $entry.='.'.$key; 811: &Apache::lonxml::debug("looking for $entry"); 812: my $value = &Apache::lonnet::EXT("$entry"); 813: &Apache::lonxml::debug("$key has value :$value:"); 814: if ($value eq 'con_lost' || $value =~ /^error:/) { 815: &Apache::lonxml::debug("using nothing"); 816: $Apache::inputtags::params{$key}=''; 817: } else { 818: my $string="{return qq\0".$value."\0}"; 819: my $newvalue=&Apache::run::run($string,$safeeval,1); 820: if (defined($newvalue)) { $value=$newvalue; } 821: $Apache::inputtags::params{$key}=$value; 822: } 823: } 824: } 825: 826: { 827: my @answer_bits; 828: my $need_row_start; 829: 830: sub answer_header { 831: my ($type,$increment,$rows) = @_; 832: my $result; 833: if ($env{'form.answer_output_mode'} eq 'tex') { 834: undef(@answer_bits); 835: my $bit; 836: if ($Apache::lonhomework::type eq 'exam') { 837: $bit = ($Apache::lonxml::counter+$increment).') '; 838: } else { 839: $bit .= ' Answer for Part: \verb|'. 840: $Apache::inputtags::part.'| '; 841: } 842: push(@answer_bits,$bit); 843: } else { 844: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>'; 845: $result = '<table border="1"><tr>'; 846: if ($Apache::lonhomework::type eq 'exam') { 847: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>'; 848: } else { 849: $result .= $td.&mt('Answer for Part: [_1]', 850: $Apache::inputtags::part).'</td>'; 851: } 852: $result .= "\n"; 853: $need_row_start = 0; 854: } 855: return $result; 856: } 857: 858: sub next_answer { 859: my ($type) = @_; 860: my $result; 861: if ($env{'form.answer_output_mode'} eq 'tex') { 862: # FIXME ... need to do something with tex mode 863: } else { 864: $result .= "</tr>"; 865: $need_row_start = 1; 866: } 867: return $result; 868: } 869: 870: sub answer_part { 871: my ($type,$answer,$args) = @_; 872: my $result; 873: if ($env{'form.answer_output_mode'} eq 'tex') { 874: if (!$args->{'no_verbatim'}) { 875: my $to_use='|'; 876: foreach my $value (32..126) { 877: my $char=pack('c',$value); 878: if ($answer !~ /\Q$char\E/) { 879: $to_use=$char; 880: last; 881: } 882: } 883: my $fullanswer=$answer; 884: $answer=''; 885: foreach my $element (split(/[\;]/,$fullanswer)) { 886: if ($element ne '') { 887: $answer.= '\verb'.$to_use.$element.$to_use.' \newline'; 888: } 889: } 890: } 891: if ($answer ne '') { 892: push(@answer_bits,$answer); 893: } 894: } else { 895: if ($need_row_start) { 896: $result .= '<tr>'; 897: $need_row_start = 0; 898: } 899: $result .= '<td>'.$answer.'</td>'; 900: } 901: return $result; 902: } 903: 904: sub answer_footer { 905: my ($type) = @_; 906: my $result; 907: if ($env{'form.answer_output_mode'} eq 'tex') { 908: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline '; 909: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}'; 910: for (my $i=1;$i<=$#answer_bits;$i++) { 911: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}'; 912: } 913: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm '; 914: } else { 915: if (!$need_row_start) { 916: $result .= '</tr>'; 917: } 918: $result .= '</table>'; 919: } 920: return $result; 921: } 922: 923: } 924: 925: sub showallfoils { 926: if (defined($env{'form.showallfoils'})) { 927: my ($symb)=&Apache::lonnet::whichuser(); 928: if (($env{'request.state'} eq 'construct') || 929: ($env{'user.adv'} && $symb eq '') || 930: ($Apache::lonhomework::viewgrades) ) { 931: return 1; 932: } 933: } 934: if ($Apache::lonhomework::type eq 'survey') { return 1; } 935: if ($Apache::lonhomework::type eq 'surveycred') { return 1; } 936: if ($Apache::lonhomework::type eq 'anonsurvey') { return 1; } 937: if ($Apache::lonhomework::type eq 'anonsurveycred') { return 1; } 938: 939: return 0; 940: } 941: 942: =pod 943: 944: =item &getresponse(); 945: 946: Retreives the current submitted response, helps out in the case of 947: scantron mode. 948: 949: Returns either the exact text of the submission, or a bubbled response 950: converted to something usable. 951: 952: Optional Arguments: 953: $offset - (defaults to 1) if a problem has more than one bubble 954: response, pass in the number of the bubble wanted, (the 955: first bubble associated with a problem has an offset of 1, 956: the second bubble is 2 957: 958: $resulttype - undef -> a number between 0 and 25 959: 'A is 1' -> a number between 1 and 26 960: 'letter' -> a letter between 'A' and 'Z' 961: $lines - undef problem only needs a single line of bubbles. 962: nonzero Problem wants the first nonempty response in 963: $lines lines of bubbles. 964: $bubbles_per_line - Must be provided if lines is defined.. number of 965: bubbles on a line. 966: 967: =cut 968: 969: sub getresponse { 970: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_; 971: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1']; 972: my $response; 973: if (!defined($offset)) { 974: $offset=1; 975: } else { 976: $formparm.=":$offset"; 977: } 978: if (!defined($lines)) { 979: $lines = 1; 980: } 981: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7, 982: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14, 983: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21, 984: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25); 985: if ($env{'form.submitted'} eq 'scantron') { 986: my $part = $Apache::inputtags::part; 987: my $id = $Apache::inputtags::response[-1]; 988: 989: my $line; 990: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id}; 991: if (!$startline) { 992: $startline = $Apache::lonxml::counter; 993: } 994: for ($line = 0; $line < $lines; $line++) { 995: my $theline = $startline+$offset-1+$line; 996: $response = $env{"scantron.$theline.answer"}; 997: if ((defined($response)) && ($response ne "") && ($response ne " ")) { 998: last; 999: } 1000: 1001: } 1002: 1003: # save bubbled letter for later 1004: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.= 1005: $response; 1006: if ($resulttype ne 'letter') { 1007: $response = $let_to_num{$response}; 1008: if ($resulttype eq 'A is 1') { 1009: if ($response ne "") { 1010: $response = $response+1; 1011: } 1012: } 1013: if ($response ne "") { 1014: $response += $line * $bubbles_per_line; 1015: } 1016: } else { 1017: if ($response ne "") { 1018: my $raw = $response; 1019: $response = chr(ord($response) + $line * $bubbles_per_line); 1020: } 1021: } 1022: 1023: } else { 1024: $response = $env{$formparm}; 1025: } 1026: # 1027: # If we have a nonempty answer, correct the numeric value 1028: # of the answer for the line on which it was found. 1029: # 1030: 1031: return $response; 1032: } 1033: 1034: =pod 1035: 1036: =item &repetition(); 1037: 1038: In scalar context: 1039: 1040: returns: the number of lines that are required to encode the weight. 1041: (Default is for 10 bubbles per bubblesheet item; other (integer) 1042: values can be specified by using a custom Bubblesheet format file 1043: with an eighteenth entry (BubblesPerRow) set to the integer 1044: appropriate for the bubblesheets which will be used to assign weights. 1045: 1046: In array context: 1047: 1048: returns: number of lines required to encode weight, and bubbles/line. 1049: 1050: =cut 1051: 1052: sub repetition { 1053: my $id = $Apache::inputtags::part; 1054: my $weight = &Apache::lonnet::EXT("resource.$id.weight"); 1055: if (!defined($weight) || ($weight eq '')) { $weight=1; } 1056: my $bubbles_per_row; 1057: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) && 1058: ($env{'form.bubbles_per_row'} > 0)) { 1059: $bubbles_per_row = $env{'form.bubbles_per_row'}; 1060: } else { 1061: $bubbles_per_row = 10; 1062: } 1063: my $denominator = $bubbles_per_row; 1064: if (($env{'form.scantron_lastbubblepoints'} == 0) && 1065: ($bubbles_per_row > 1)) { 1066: $denominator = $bubbles_per_row - 1; 1067: } 1068: my $repetition = int($weight/$denominator); 1069: if ($weight % $denominator != 0) { $repetition++; } 1070: if (wantarray) { 1071: return ($repetition,$bubbles_per_row); 1072: } 1073: return $repetition; 1074: 1075: } 1076: 1077: =pod 1078: 1079: =item &scored_response(); 1080: 1081: Sets the results hash elements 1082: 1083: resource.$part_id.$response_id.awarded - to the floating point 1084: number between 0 and 1 that was awarded on the bubbled input 1085: 1086: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE' 1087: 1088: Returns 1089: 1090: the number of bubble sheet lines that were used (and likely need to 1091: be passed to &Apache::lonxml::increment_counter() 1092: 1093: Arguments 1094: 1095: $part_id - id of the part to grade 1096: $response_id - id of the response to grade 1097: 1098: 1099: =cut 1100: 1101: sub scored_response { 1102: my ($part,$id)=@_; 1103: my $repetition=&repetition(); 1104: my $bubbles_per_row; 1105: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) && 1106: ($env{'form.bubbles_per_row'} > 0)) { 1107: $bubbles_per_row = $env{'form.bubbles_per_row'}; 1108: } else { 1109: $bubbles_per_row = 10; 1110: } 1111: my $score=0; 1112: for (my $i=0;$i<$repetition;$i++) { 1113: # A is 1, B is 2, etc. 1114: my $increase=&Apache::response::getresponse($i+1); 1115: unless (($increase == $bubbles_per_row-1) && 1116: ($env{'form.scantron_lastbubblepoints'} == 0)) { 1117: # (get response return 0-9 and then we add 1) 1118: if ($increase ne '') { 1119: $score+=$increase+1; 1120: } 1121: } 1122: } 1123: my $weight = &Apache::lonnet::EXT("resource.$part.weight"); 1124: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; } 1125: my $pcr=$score/$weight; 1126: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr; 1127: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}= 1128: 'ASSIGNED_SCORE'; 1129: return $repetition; 1130: } 1131: 1132: sub whichorder { 1133: my ($max,$randomize,$showall,$hash,$rndseed)=@_; 1134: #&Apache::lonxml::debug("man $max randomize $randomize"); 1135: if (!defined(@{ $$hash{'names'} })) { return; } 1136: my @names = @{ $$hash{'names'} }; 1137: my @whichopt =(); 1138: my (%top,@toplist,%bottom,@bottomlist); 1139: if (!($showall || ($randomize eq 'no'))) { 1140: my $current=0; 1141: foreach my $name (@names) { 1142: $current++; 1143: if ($$hash{"$name.location"} eq 'top') { 1144: $top{$name}=$current; 1145: } elsif ($$hash{"$name.location"} eq 'bottom') { 1146: $bottom{$name}=$current; 1147: } 1148: } 1149: } 1150: my $topcount=0; 1151: my $bottomcount=0; 1152: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall) 1153: && ($#names > -1)) { 1154: #&Apache::lonxml::debug("Have $#whichopt max is $max"); 1155: my $aopt; 1156: if ($showall || ($randomize eq 'no')) { 1157: $aopt=0; 1158: } else { 1159: $aopt=int(&Math::Random::random_uniform() * ($#names+1)); 1160: } 1161: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt"); 1162: $aopt=splice(@names,$aopt,1); 1163: #&Apache::lonxml::debug("Picked $aopt"); 1164: if ($top{$aopt}) { 1165: $toplist[$top{$aopt}]=$aopt; 1166: $topcount++; 1167: } elsif ($bottom{$aopt}) { 1168: $bottomlist[$bottom{$aopt}]=$aopt; 1169: $bottomcount++; 1170: } else { 1171: push (@whichopt,$aopt); 1172: } 1173: } 1174: for (my $i=0;$i<=$#toplist;$i++) { 1175: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) } 1176: } 1177: for (my $i=0;$i<=$#bottomlist;$i++) { 1178: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) } 1179: } 1180: return @whichopt; 1181: } 1182: 1183: sub show_answer { 1184: my $part = $Apache::inputtags::part; 1185: my $award = $Apache::lonhomework::history{"resource.$part.solved"}; 1186: my $status = $Apache::inputtags::status[-1]; 1187: my $canshow = 0; 1188: if ($award =~ /^correct/) { 1189: if ((&Apache::inputtags::grading_is_nonlenient($part)) || 1190: ($Apache::lonhomework::history{"resource.$part.awarded"} == 1)) { 1191: $canshow = 1; 1192: } 1193: } 1194: return (($canshow && &Apache::lonhomework::show_problem_status()) 1195: || $status eq "SHOW_ANSWER"); 1196: } 1197: 1198: sub analyze_store_foilgroup { 1199: my ($shown,$attrs)=@_; 1200: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]"; 1201: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) { 1202: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; } 1203: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name); 1204: foreach my $attr (@$attrs) { 1205: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} = 1206: $Apache::response::foilgroup{"$name.".$attr}; 1207: } 1208: } 1209: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown }); 1210: } 1211: 1212: sub check_if_computed { 1213: my ($token,$parstack,$safeeval,$name)=@_; 1214: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval); 1215: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) { 1216: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]"; 1217: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1; 1218: } 1219: } 1220: 1221: sub pick_foil_for_concept { 1222: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_; 1223: if (not defined(@{ $Apache::response::conceptgroup{'names'} })) { return; } 1224: my @names = @{ $Apache::response::conceptgroup{'names'} }; 1225: my $pick=int(&Math::Random::random_uniform() * ($#names+1)); 1226: my $name=$names[$pick]; 1227: push @{ $Apache::response::foilgroup{'names'} }, $name; 1228: foreach my $attr (@$attrs) { 1229: $Apache::response::foilgroup{"$name.".$attr} = 1230: $Apache::response::conceptgroup{"$name.".$attr}; 1231: } 1232: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval); 1233: $Apache::response::foilgroup{"$name.concept"} = $concept; 1234: &Apache::lonxml::debug("Selecting $name in $concept"); 1235: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]"; 1236: if ($target eq 'analyze') { 1237: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} }, 1238: $concept); 1239: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}= 1240: $Apache::response::conceptgroup{'names'}; 1241: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) { 1242: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} }, 1243: $name); 1244: foreach my $attr (@$attrs) { 1245: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}= 1246: $Apache::response::conceptgroup{"$name.$attr"}; 1247: } 1248: } 1249: } 1250: push(@{ $hinthash->{"$part_id.concepts"} },$concept); 1251: $hinthash->{"$part_id.concept.$concept"}= 1252: $Apache::response::conceptgroup{'names'}; 1253: 1254: } 1255: 1256: =pod 1257: 1258: =item get_response_param() 1259: 1260: Get a parameter associated with a problem. 1261: Parameters: 1262: $id - the id of the paramater, either a part id, 1263: or a partid and responspe id joined by _ 1264: $name - Name of the parameter to fetch 1265: $default - Default value for the paramter. 1266: 1267: =cut 1268: 1269: sub get_response_param { 1270: my ($id,$name,$default)=@_; 1271: my $parameter; 1272: if ($env{'request.state'} eq 'construct' && 1273: defined($Apache::inputtags::params{$name})) { 1274: $parameter=$Apache::inputtags::params{$name}; 1275: } else { 1276: $parameter=&Apache::lonnet::EXT("resource.$id.$name"); 1277: } 1278: if (!defined($parameter) || $parameter eq '') { 1279: $parameter = $default; 1280: } 1281: return $parameter; 1282: } 1283: 1284: sub submitted { 1285: my ($who)=@_; 1286: 1287: # when scatron grading any submission is a submission 1288: if ($env{'form.submitted'} eq 'scantron') { return 1; } 1289: # if the caller only cared if this was a scantron submission 1290: if ($who eq 'scantron') { return 0; } 1291: # if the Submit Answer button for this particular part was pressed 1292: my $partid=$Apache::inputtags::part; 1293: if ($env{'form.submitted'} eq "part_$partid") { 1294: return 1; 1295: } 1296: if ($env{'form.submitted'} eq "yes" 1297: && defined($env{'form.submit_'.$partid})) { 1298: return 1; 1299: } 1300: # Submit All button on a .page was pressed 1301: if (defined($env{'form.all_submit'})) { return 1; } 1302: # otherwise no submission occurred 1303: return 0; 1304: } 1305: 1306: sub add_to_gradingqueue { 1307: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser(); 1308: if ( $courseid eq '' 1309: || $symb eq '' 1310: || $env{'request.state'} eq 'construct' 1311: || $Apache::lonhomework::type ne 'problem') { 1312: return; 1313: } 1314: 1315: my %queue_info = ( 'type' => 'problem', 1316: 'time' => time); 1317: 1318: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) { 1319: $queue_info{'slot'}= 1320: $Apache::lonhomework::history{"resource.0.checkedin.slot"}; 1321: } 1322: 1323: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info); 1324: if ($result ne 'ok') { 1325: &Apache::lonxml::error("add_to_queue said $result"); 1326: } 1327: } 1328: 1329: =pod 1330: 1331: =item check_status() 1332: 1333: basically undef and 0 (both false) mean that they still have work to do 1334: and all true values mean that they can't do any more work 1335: 1336: a return of undef means it is unattempted 1337: a return of 0 means it is attmpted and wrong but still has tries 1338: a return of 1 means it is marked correct 1339: a return of 2 means they have exceed maximum number of tries 1340: a return of 3 means it after the answer date 1341: 1342: =cut 1343: 1344: sub check_status { 1345: my ($id)=@_; 1346: if (!defined($id)) { $id=$Apache::inputtags::part; } 1347: my $curtime=&Apache::lonnet::EXT('system.time'); 1348: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate"); 1349: my $duedate=&Apache::lonnet::EXT("resource.$id.duedate"); 1350: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate"); 1351: if ( $opendate && $curtime > $opendate && 1352: $duedate && $curtime > $duedate && 1353: $answerdate && $curtime > $answerdate) { 1354: return 3; 1355: } 1356: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved"); 1357: if ($status =~ /^correct/) { return 1; } 1358: if (!$status) { return undef; } 1359: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries"); 1360: if ($maxtries eq '') { $maxtries=2; } 1361: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries"); 1362: if ($curtries < $maxtries) { return 0; } 1363: return 2; 1364: } 1365: 1366: =pod 1367: 1368: =item setup_prior_tries_hash() 1369: 1370: Foreach each past .submission $func is called with 3 arguments 1371: - the mode to set things up for (currently always 'grade') 1372: - the stored .submission string 1373: - The expansion of $data 1374: 1375: $data is an array ref containing elements that are either 1376: - scalars that are other elements of the history hash to pass to $func 1377: - ref to data to be passed untouched to $func 1378: 1379: $questiontype is the questiontype (currently only passed in if 1380: randomizebytry. 1381: 1382: =cut 1383: 1384: sub setup_prior_tries_hash { 1385: my ($func,$data,$questiontype) = @_; 1386: my $part = $Apache::inputtags::part; 1387: my $id = $Apache::inputtags::response[-1]; 1388: foreach my $i (1..$Apache::lonhomework::history{'version'}) { 1389: my $partprefix = "$i:resource.$part"; 1390: my $sub_key = "$partprefix.$id.submission"; 1391: next if (!exists($Apache::lonhomework::history{$sub_key})); 1392: my $type_key = "$partprefix.type"; 1393: my $type = $Apache::lonhomework::history{$type_key}; 1394: my @other_data; 1395: if (ref($data) eq 'ARRAY') { 1396: foreach my $datum (@{ $data }) { 1397: if (ref($datum)) { 1398: push(@other_data,$datum); 1399: } else { 1400: my $info_key = "$i:resource.$part.$id.$datum"; 1401: push(@other_data,$Apache::lonhomework::history{$info_key}); 1402: } 1403: } 1404: } 1405: if ($questiontype eq 'randomizetry') { 1406: my $order_key = "$partprefix.$id.foilorder"; 1407: my @whichopts = &Apache::lonnet::str2array($Apache::lonhomework::history{$order_key}); 1408: if (@whichopts > 0) { 1409: shift(@other_data); 1410: unshift(@other_data,\@whichopts); 1411: } 1412: } 1413: my $output = 1414: &$func('grade', 1415: $Apache::lonhomework::history{$sub_key}, 1416: \@other_data); 1417: if (defined($output)) { 1418: $Apache::inputtags::submission_display{$sub_key} = $output; 1419: } 1420: } 1421: } 1422: 1423: 1; 1424: __END__ 1425: 1426: =pod 1427: 1428: =cut