Annotation of loncom/interface/lonsearchcat.pm, revision 1.41

1.1       www         1: # The LearningOnline Network
                      2: # Search Catalog
                      3: #
1.2       harris41    4: # 03/08/2001 Scott Harrison
1.1       www         5: #
1.41    ! harris41    6: # Functions
        !             7: #
        !             8: # handler(server reference) : interacts with the Apache server layer
        !             9: #                             (for /adm/searchcat URLs)
        !            10: # simpletextfield(name,value) : returns HTML formatted string for simple text
        !            11: #                               field
        !            12: # simplecheckbox(name,value) : returns HTML formatted string for simple
        !            13: #                              checkbox
        !            14: # searchphrasefield(title,name,value) : returns HTML formatted string for
        !            15: #                                       a search expression phrase field
        !            16: # dateboxes(name, defaultmonth, defaultday, defaultyear) : returns HTML
        !            17: #                                                          formatted string
        !            18: #                                                          for a calendar date
        !            19: # selectbox(title,name,value,%HASH=options) : returns HTML formatted string for
        !            20: #                                             a selection box field
        !            21: # advancedsearch() : 
        !            22: # filled(field) : determines whether a given field has been filled
        !            23: # basicsearch() : 
        !            24: # output_blank_field_error() : outputs a message saying that more fields need
        !            25: #                              to be filled in
        !            26: # output_results() : outputs results from search
        !            27: # build_SQL_query() : builds a SQL query string from a logical expression
        !            28: #                     with AND/OR keywords
        !            29: 
1.1       www        30: package Apache::lonsearchcat;
                     31: 
                     32: use strict;
                     33: use Apache::Constants qw(:common);
1.6       harris41   34: use Apache::lonnet();
                     35: use Apache::File();
1.7       harris41   36: use CGI qw(:standard);
1.41    ! harris41   37: use Text::Query;
1.1       www        38: 
1.3       harris41   39: my %language;
                     40: my $scrout;
                     41: my %metadatafields;
                     42: my %cprtag;
                     43: my %mimetag;
                     44: 
1.1       www        45: sub handler {
                     46:     my $r = shift;
1.7       harris41   47: 
                     48: # -------------------------------------- see if called from an interactive mode
                     49:     map {
                     50:        my ($name, $value) = split(/=/,$_);
                     51:        $value =~ tr/+/ /;
                     52:        $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
                     53:        if ($name eq 'catalogmode') {
                     54: 	   $ENV{'form.'.$name}=$value;
                     55:        }
                     56:     } (split(/&/,$ENV{'QUERY_STRING'}));
                     57: 
1.1       www        58:     $r->content_type('text/html');
                     59:     $r->send_http_header;
                     60:     return OK if $r->header_only;
                     61: 
1.3       harris41   62:     %metadatafields=();
                     63: 
1.8       harris41   64:     my $hidden='';
                     65:     $hidden=<<END if $ENV{'form.catalogmode'} eq 'interactive';
                     66: <input type='hidden' name='catalogmode' value='interactive'>
                     67: END
                     68: 
1.3       harris41   69: # ------------------------------------------------ First, check out environment
                     70:     $metadatafields{'owner'}=$ENV{'user.name'}.'@'.$ENV{'user.domain'};
                     71: 
1.8       harris41   72: # --------------------------------- Compute various listings of metadata values
1.3       harris41   73:     
                     74:     %language=();
                     75:     $language{'any'}='Any language';
                     76:     {
                     77: 	my $fh=Apache::File->new($r->dir_config('lonTabDir').'/language.tab');
                     78: 	map {
                     79: 	    $_=~/(\w+)\s+([\w\s\-]+)/;
                     80: 	    $language{$1}=$2;
                     81: 	} <$fh>;
                     82:     }
                     83: 
                     84:     %cprtag=();
                     85:     $cprtag{'any'}='Any copyright/distribution';
                     86:     {
                     87: 	my $fh=Apache::File->new($r->dir_config('lonIncludes').'/copyright.tab');
                     88: 	map {
                     89: 	    $_=~/(\w+)\s+([\w\s\-]+)/;
                     90: 	    $cprtag{$1}=$2;
                     91: 	} <$fh>;
                     92:     }
                     93: 
                     94:     %mimetag=();
                     95:     $mimetag{'any'}='Any type';
                     96:     {
                     97: 	my $fh=Apache::File->new($r->dir_config('lonTabDir').'/filetypes.tab');
                     98: 	map {
                     99: 	    $_=~/(\w+)\s+(\w+)\s+([\w\s\-]+)/;
                    100: 	    $mimetag{$1}=".$1 $3";
                    101: 	} <$fh>;
                    102:     }
                    103: 
1.6       harris41  104:     if ($ENV{'form.basicsubmit'} eq 'SEARCH') {
1.19      harris41  105: 	return &basicsearch($r,\%ENV);
1.6       harris41  106:     }
1.18      harris41  107:     elsif ($ENV{'form.advancedsubmit'} eq 'SEARCH') {
                    108: 	return &advancedsearch($r,\%ENV);
                    109:     }
1.6       harris41  110: 
1.8       harris41  111:     $scrout=''; # building a part of screen output
1.3       harris41  112:     $scrout.=&searchphrasefield('Limit by title','title',
1.11      harris41  113: 			$ENV{'form.title'});
1.3       harris41  114: 
                    115:     $scrout.=&searchphrasefield('Limit by author','author',
1.11      harris41  116: 			$ENV{'form.author'});
1.3       harris41  117: 
                    118:     $scrout.=&searchphrasefield('Limit by subject','subject',
1.11      harris41  119: 			$ENV{'form.subject'});
                    120: 
                    121:     $scrout.=&searchphrasefield('Limit by keywords','keywords',
                    122: 			$ENV{'form.keywords'});
                    123: 
                    124:     $scrout.=&searchphrasefield('Limit by URL','url',
                    125: 			$ENV{'form.url'});
                    126: 
                    127:     $scrout.=&searchphrasefield('Limit by version','version',
                    128: 			$ENV{'form.version'});
1.3       harris41  129: 
                    130:     $scrout.=&searchphrasefield('Limit by notes','notes',
1.11      harris41  131: 			$ENV{'form.notes'});
1.3       harris41  132: 
                    133:     $scrout.=&searchphrasefield('Limit by abstract','abstract',
1.11      harris41  134: 			$ENV{'form.abstract'});
1.3       harris41  135: 
1.11      harris41  136:     $ENV{'form.mime'}='notxxx' unless length($ENV{'form.mime'});
1.3       harris41  137:     $scrout.=&selectbox('Limit by MIME type','mime',
1.11      harris41  138: 			$ENV{'form.mime'},%mimetag);
                    139: 
                    140:     $ENV{'form.language'}='any' unless length($ENV{'form.language'});
1.3       harris41  141: 
                    142:     $scrout.=&selectbox('Limit by language','language',
1.11      harris41  143: 			$ENV{'form.language'},%language);
1.3       harris41  144:     
1.8       harris41  145: 
                    146: # ------------------------------------------------ Compute date selection boxes
                    147:     $scrout.=<<CREATIONDATESTART;
1.3       harris41  148: <p>
                    149: <font color="#800000" face="helvetica"><b>LIMIT BY CREATION DATE RANGE:</b>
                    150: </font>
                    151: <br>
1.8       harris41  152: between:
                    153: CREATIONDATESTART
1.11      harris41  154:     $scrout.=&dateboxes('creationdatestart',1,1,1976,
                    155: 			$ENV{'form.creationdatestart_month'},
                    156: 			$ENV{'form.creationdatestart_day'},
                    157: 			$ENV{'form.creationdatestart_year'},
                    158: 			);
1.8       harris41  159:     $scrout.=<<CREATIONDATEEND;
                    160: and:
                    161: CREATIONDATEEND
1.11      harris41  162:     $scrout.=&dateboxes('creationdateend',12,31,2051,
                    163: 			$ENV{'form.creationdateend_month'},
                    164: 			$ENV{'form.creationdateend_day'},
                    165: 			$ENV{'form.creationdateend_year'},
                    166: 			);
1.8       harris41  167:     $scrout.="</p>";
                    168: 
                    169:     $scrout.=<<LASTREVISIONDATESTART;
                    170: <p>
                    171: <font color="#800000" face="helvetica"><b>LIMIT BY LAST REVISION DATE RANGE:
                    172: </b></font>
                    173: <br>between:
                    174: LASTREVISIONDATESTART
1.11      harris41  175:     $scrout.=&dateboxes('lastrevisiondatestart',1,1,1976,
                    176: 			$ENV{'form.lastrevisiondatestart_month'},
                    177: 			$ENV{'form.lastrevisiondatestart_day'},
                    178: 			$ENV{'form.lastrevisiondatestart_year'},
                    179: 			);
1.8       harris41  180:     $scrout.=<<LASTREVISIONDATEEND;
                    181: and:
                    182: LASTREVISIONDATEEND
1.11      harris41  183:     $scrout.=&dateboxes('lastrevisiondateend',12,31,2051,
                    184: 			$ENV{'form.lastrevisiondateend_month'},
                    185: 			$ENV{'form.lastrevisiondateend_day'},
                    186: 			$ENV{'form.lastrevisiondateend_year'},
                    187: 			);
1.8       harris41  188:     $scrout.='</p>';
                    189: 
                    190:     $scrout.=&searchphrasefield('Limit by publisher/owner','owner',
1.11      harris41  191: 				$ENV{'form.owner'});
                    192: #			$metadatafields{'owner'});
1.8       harris41  193: 
1.11      harris41  194:     $ENV{'form.copyright'}='any' unless length($ENV{'form.copyright'});
1.8       harris41  195:     $scrout.=&selectbox('Limit by copyright/distribution','copyright',
1.11      harris41  196: 			$ENV{'form.copyright'},%cprtag);
1.8       harris41  197: 
1.14      harris41  198: # ------------------------------------------- Compute customized metadata field
                    199:     $scrout.=<<CUSTOMMETADATA;
                    200: <p>
                    201: <font color="#800000" face="helvetica"><b>LIMIT BY OTHER METADATA FIELDS:</b>
                    202: </font>
                    203: For author-specific metadata, enter in an expression in the form of 
                    204: <i>key</i>=<i>value</i> separated by operators such as AND or OR.<br>
                    205: <b>Example:</b> grandmother=75 OR grandfather=85
                    206: <br>
                    207: CUSTOMMETADATA
                    208: $scrout.=&simpletextfield('custommetadata',$ENV{'form.custommetadata'});
1.15      harris41  209: $scrout.=' <i>initial users of this system do not need to worry about this option</i>';
1.14      harris41  210: 
1.8       harris41  211: # ---------------------------------------------------------------- Print screen
                    212:     $r->print(<<ENDDOCUMENT);
                    213: <html>
                    214: <head>
                    215: <title>The LearningOnline Network with CAPA</title>
                    216: </head>
                    217: <body bgcolor="#FFFFFF">
                    218: <img align=right src=/adm/lonIcons/lonlogos.gif>
                    219: <h1>Search Catalog</h1>
                    220: <form method="post" action="/adm/searchcat">
                    221: $hidden
                    222: <hr>
                    223: <h3>Basic Search</h3>
                    224: <p>
                    225: Enter terms or phrases separated by search operators
                    226: such as AND or OR then press SEARCH below.  Terms should be specific
                    227: to the title, author, subject, notes, or abstract information associated
                    228: with a resource.
                    229: <br>
1.11      harris41  230: ENDDOCUMENT
                    231:     $r->print(&simpletextfield('basicexp',$ENV{'form.basicexp'}));
                    232:     $r->print(' ');
                    233:     $r->print(&simplecheckbox('titleonly',$ENV{'form.titleonly'}));
                    234:     $r->print('<font color="#800000">Title only</font> ');
                    235:     $r->print(&simplecheckbox('allversions',$ENV{'form.allversions'}));
                    236:     $r->print(<<ENDDOCUMENT);
                    237: <font color="#800000">Search historic archives</font>
1.8       harris41  238: <br>
                    239: <input type="submit" name="basicsubmit" value="SEARCH">
                    240: <input type="reset" name="reset" value="RESET">
                    241: <input type="button" name="close" value="CLOSE" onClick="self.close()">
                    242: </p>
                    243: <hr>
                    244: <h3>Advanced Search</h3>
                    245: $scrout
                    246: <p>
                    247: <input type="submit" name="advancedsubmit" value="SEARCH">
                    248: <input type="reset" name="reset" value="RESET">
                    249: <input type="button" name="close" value="CLOSE" onClick="self.close()">
1.3       harris41  250: </p>
1.8       harris41  251: </form>
                    252: </body>
                    253: </html>
                    254: ENDDOCUMENT
                    255:     return OK;
                    256: } 
                    257: 
                    258: # --------------------------------------------------------- Various form fields
                    259: 
1.11      harris41  260: sub simpletextfield {
                    261:     my ($name,$value)=@_;
                    262:     return '<input type=text name="'.$name.'" size=20 value="'.$value.'">';
                    263: }
                    264: 
                    265: sub simplecheckbox {
                    266:     my ($name,$value)=@_;
                    267:     my $checked='';
                    268:     $checked="CHECKED" if $value eq 'on';
                    269:     return '<input type=checkbox name="'.$name.'" '. $checked . '>';
                    270: }
                    271: 
1.8       harris41  272: sub searchphrasefield {
                    273:     my ($title,$name,$value)=@_;
                    274:     my $instruction=<<END;
                    275: Enter terms or phrases separated by search operators such
                    276: as AND or OR.
                    277: END
                    278:     my $uctitle=uc($title);
                    279:     return "\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:</b>".
                    280: 	   "</FONT> $instruction<br>".
                    281:            '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
                    282: }
1.3       harris41  283: 
1.8       harris41  284: sub dateboxes {
1.11      harris41  285:     my ($name,$defaultmonth,$defaultday,$defaultyear,
                    286: 	$currentmonth,$currentday,$currentyear)=@_;
                    287:     ($defaultmonth,$defaultday,$defaultyear)=('','','');
                    288:     my $month=<<END;
1.8       harris41  289: <select name="${name}_month">
1.11      harris41  290: <option value='$defaultmonth'> </option>
                    291: <option value="1">January</option>
                    292: <option value="2">February</option>
                    293: <option value="3">March</option>
                    294: <option value="4">April</option>
                    295: <option value="5">May</option>
                    296: <option value="6">June</option>
                    297: <option value="7">July</option>
                    298: <option value="8">August</option>
                    299: <option value="9">September</option>
1.3       harris41  300: <option value="10">October</option>
                    301: <option value="11">November</option>
                    302: <option value="12">December</option>
                    303: </select>
1.11      harris41  304: END
                    305:     $month=~s/(\"$currentmonth\")/$1 SELECTED/ if length($currentmonth);
                    306:     my $day=<<END;
1.8       harris41  307: <select name="${name}_day">
1.11      harris41  308: <option value='$defaultday'> </option>
                    309: <option value="1">1</option>
                    310: <option value="2">2</option>
                    311: <option value="3">3</option>
                    312: <option value="4">4</option>
                    313: <option value="5">5</option>
                    314: <option value="6">6</option>
                    315: <option value="7">7</option>
                    316: <option value="8">8</option>
                    317: <option value="9">9</option>
                    318: <option value="10">10</option>
                    319: <option value="11">11</option>
                    320: <option value="12">12</option>
                    321: <option value="13">13</option>
                    322: <option value="14">14</option>
                    323: <option value="15">15</option>
                    324: <option value="16">16</option>
                    325: <option value="17">17</option>
                    326: <option value="18">18</option>
                    327: <option value="19">19</option>
                    328: <option value="20">20</option>
                    329: <option value="21">21</option>
                    330: <option value="22">22</option>
                    331: <option value="23">23</option>
                    332: <option value="24">24</option>
                    333: <option value="25">25</option>
                    334: <option value="26">26</option>
                    335: <option value="27">27</option>
                    336: <option value="28">28</option>
                    337: <option value="29">29</option>
                    338: <option value="30">30</option>
                    339: <option value="31">31</option>
1.3       harris41  340: </select>
1.11      harris41  341: END
                    342:     $day=~s/(\"$currentday\")/$1 SELECTED/ if length($currentday);
                    343:     my $year=<<END;
1.8       harris41  344: <select name="${name}_year">
1.11      harris41  345: <option value='$defaultyear'> </option>
                    346: <option value="1976">1976</option>
                    347: <option value="1977">1977</option>
                    348: <option value="1978">1978</option>
                    349: <option value="1979">1979</option>
                    350: <option value="1980">1980</option>
                    351: <option value="1981">1981</option>
                    352: <option value="1982">1982</option>
                    353: <option value="1983">1983</option>
                    354: <option value="1984">1984</option>
                    355: <option value="1985">1985</option>
                    356: <option value="1986">1986</option>
                    357: <option value="1987">1987</option>
                    358: <option value="1988">1988</option>
                    359: <option value="1989">1989</option>
                    360: <option value="1990">1990</option>
                    361: <option value="1991">1991</option>
                    362: <option value="1992">1992</option>
                    363: <option value="1993">1993</option>
                    364: <option value="1994">1994</option>
                    365: <option value="1995">1995</option>
                    366: <option value="1996">1996</option>
                    367: <option value="1997">1997</option>
                    368: <option value="1998">1998</option>
                    369: <option value="1999">1999</option>
                    370: <option value="2000">2000</option>
                    371: <option value="2001">2001</option>
                    372: <option value="2002">2002</option>
                    373: <option value="2003">2003</option>
                    374: <option value="2004">2004</option>
                    375: <option value="2005">2005</option>
                    376: <option value="2006">2006</option>
                    377: <option value="2007">2007</option>
                    378: <option value="2008">2008</option>
                    379: <option value="2009">2009</option>
                    380: <option value="2010">2010</option>
                    381: <option value="2011">2011</option>
                    382: <option value="2012">2012</option>
                    383: <option value="2013">2013</option>
                    384: <option value="2014">2014</option>
                    385: <option value="2015">2015</option>
                    386: <option value="2016">2016</option>
                    387: <option value="2017">2017</option>
                    388: <option value="2018">2018</option>
                    389: <option value="2019">2019</option>
                    390: <option value="2020">2020</option>
                    391: <option value="2021">2021</option>
                    392: <option value="2022">2022</option>
                    393: <option value="2023">2023</option>
                    394: <option value="2024">2024</option>
                    395: <option value="2025">2025</option>
                    396: <option value="2026">2026</option>
                    397: <option value="2027">2027</option>
                    398: <option value="2028">2028</option>
                    399: <option value="2029">2029</option>
                    400: <option value="2030">2030</option>
                    401: <option value="2031">2031</option>
                    402: <option value="2032">2032</option>
                    403: <option value="2033">2033</option>
                    404: <option value="2034">2034</option>
                    405: <option value="2035">2035</option>
                    406: <option value="2036">2036</option>
                    407: <option value="2037">2037</option>
                    408: <option value="2038">2038</option>
                    409: <option value="2039">2039</option>
                    410: <option value="2040">2040</option>
                    411: <option value="2041">2041</option>
                    412: <option value="2042">2042</option>
                    413: <option value="2043">2043</option>
                    414: <option value="2044">2044</option>
                    415: <option value="2045">2045</option>
                    416: <option value="2046">2046</option>
                    417: <option value="2047">2047</option>
                    418: <option value="2048">2048</option>
                    419: <option value="2049">2049</option>
                    420: <option value="2050">2050</option>
                    421: <option value="2051">2051</option>
1.3       harris41  422: </select>
                    423: END
1.11      harris41  424:     $year=~s/(\"$currentyear\")/$1 SELECTED/ if length($currentyear);
                    425:     return "$month$day$year";
1.3       harris41  426: }
                    427: 
                    428: sub selectbox {
                    429:     my ($title,$name,$value,%options)=@_;
                    430:     my $uctitle=uc($title);
                    431:     my $selout="\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:".
                    432: 	"</b></font><br>".'<select name="'.$name.'">';
                    433:     map {
                    434:         $selout.='<option value="'.$_.'"';
                    435:         if ($_ eq $value) { $selout.=' selected'; }
                    436:         $selout.='>'.$options{$_}.'</option>';
                    437:     } sort keys %options;
                    438:     return $selout.'</select>';
1.6       harris41  439: }
                    440: 
1.18      harris41  441: # ------------------------------------------------ Performing a advanced search
                    442: sub advancedsearch {
                    443:     my ($r,$envhash)=@_;
                    444:     my %ENV=%{$envhash};
                    445: 
1.32      harris41  446:     my $fillflag=0;
                    447:     for my $field ('title','author','subject','keywords','url','version',
                    448: 		   'notes','abstract','mime','language','owner',
                    449: 		   'custommetadata') {
1.40      harris41  450: 	if (&filled($ENV{"form.$field"})) {
1.32      harris41  451: 	    $fillflag++;
                    452: 	}
                    453:     }
                    454: 
                    455:     unless ($fillflag) {
                    456: 	&output_blank_field_error($r);
                    457: 	return OK;
                    458:     }
1.39      harris41  459: 
                    460:     my $query='';
                    461: #    my $concatarg=join(',"    ",',
                    462: #		       ('title', 'author', 'subject', 'notes', 'abstract'));
                    463: 
                    464:     $query="select * from metadata where concat(title) like '\%$ENV{'form.title'}\%'";
                    465:     my $reply=&Apache::lonnet::metadata_query($query);
                    466: 
1.38      harris41  467:     &output_results($r,$envhash,$reply);
1.24      harris41  468:     return OK;
1.18      harris41  469: }
                    470: 
1.26      harris41  471: # ---------------------------------------------------- see if a field is filled
                    472: sub filled {
1.31      harris41  473:     my ($field)=@_;
                    474:     if ($field=~/\S/) {
1.28      harris41  475: 	return 1;
                    476:     }
                    477:     else {
                    478: 	return 0;
                    479:     }
1.26      harris41  480: }
                    481: 
1.6       harris41  482: # --------------------------------------------------- Performing a basic search
                    483: sub basicsearch {
1.19      harris41  484:     my ($r,$envhash)=@_;
                    485:     my %ENV=%{$envhash};
1.6       harris41  486: 
1.26      harris41  487:     unless (&filled($ENV{'form.basicexp'})) {
1.24      harris41  488: 	&output_blank_field_error($r);
                    489: 	return OK;
                    490:     }
1.22      harris41  491: 
1.39      harris41  492:     my $query='';
1.33      harris41  493:     my $concatarg=join(',"    ",',
                    494: 		       ('title', 'author', 'subject', 'notes', 'abstract'));
                    495: 
                    496:     $query="select * from metadata where concat($concatarg) like '\%$ENV{'form.basicexp'}\%'";
1.13      harris41  497:     my $reply=&Apache::lonnet::metadata_query($query);
1.36      harris41  498:     &output_results($r,$envhash,$reply);
1.18      harris41  499:     return OK;
1.22      harris41  500: }
                    501: 
                    502: sub output_blank_field_error {
                    503:     my ($r)=@_;
                    504:     # make query information persistent to allow for subsequent revision
                    505:     my $persistent='';
                    506:     map {
                    507: 	if (/^form\./ && !/submit/) {
                    508: 	    my $name=$_;
                    509: 	    my $key=$name;
                    510: 	    $name=~s/^form\.//;
                    511: 	    $persistent.=<<END;
                    512: <INPUT TYPE='hidden' NAME='$name' VALUE='$ENV{$key}'>
                    513: END
                    514:         }
                    515:     } (keys %ENV);
                    516: 
                    517:     $r->print(<<BEGINNING);
                    518: <html>
                    519: <head>
                    520: <title>The LearningOnline Network with CAPA</title>
                    521: BEGINNING
                    522:     $r->print(<<RESULTS);
                    523: </head>
                    524: <body bgcolor="#ffffff">
                    525: <img align=right src=/adm/lonIcons/lonlogos.gif>
                    526: <h1>Search Catalog</h1>
                    527: <form method="post" action="/adm/searchcat">
                    528: $persistent
                    529: <input type='button' value='Revise search request'
                    530: onClick='this.form.submit();'>
                    531: <input type='button' value='CLOSE'
                    532: onClick='self.close();'>
                    533: <hr>
                    534: <h3>Helpful Message</h3>
                    535: <p>
                    536: Incorrect search query due to blank entry fields.
                    537: You need to fill in the relevant
                    538: fields on the search page in order for a query to be
                    539: processed.
                    540: </p>
                    541: </body>
                    542: </html>
                    543: RESULTS
1.18      harris41  544: }
1.6       harris41  545: 
1.18      harris41  546: # ----------------------------- format and output results based on a reply list
                    547: sub output_results {
1.36      harris41  548:     my ($r,$envhash,@replylist)=@_;
1.19      harris41  549:     my %ENV=%{$envhash};
1.18      harris41  550:     foreach my $reply (@replylist) {
                    551: 
                    552: 	my @results;
                    553: 
                    554: 	my $replyfile='';
                    555: 	$reply=~/^([\.\w]+)$/; # must do since 'use strict' checks for tainting
                    556: 	$replyfile=$r->dir_config('lonDaemons').'/tmp/'.$1;
                    557: 	$reply=~/(.*?)\_/;
                    558: 	my $hostname=$1;
                    559: 
                    560: 	{
                    561: 	    while (1) {
                    562: 		last if -e $replyfile;
                    563: 		sleep 1;
                    564: 	    }
                    565: 	    # QUESTION: how should I handle this error condition..
                    566: 	    # I'm sure there is syntax elsewhere I can use..
                    567: 	    my $fh=Apache::File->new($replyfile) or
                    568: 		($r->print('file cannot be opened') and return OK);
                    569: 	    @results=<$fh>;
1.6       harris41  570: 	}
                    571: 
1.18      harris41  572: 	my $compiledresult='';
1.6       harris41  573: 
1.18      harris41  574: 	foreach my $result (@results) {
                    575: 	    my ($title,$author,$subject,$url,$keywords,$version,
                    576: 		$notes,$abstract,$mime,$lang,
                    577: 		$creationdate,$lastrevisiondate,$owner,$copyright
                    578: 		)=map {&Apache::lonnet::unescape($_)} (split(/\,/,$result));
                    579: 	    my $shortabstract=$abstract;
                    580: 	    $shortabstract=substr($abstract,0,200) if length($abstract)>200;
                    581: 	    $compiledresult.=<<END;
1.6       harris41  582: <p>
1.8       harris41  583: END
1.18      harris41  584:             $compiledresult.=<<END if $ENV{'form.catalogmode'} eq 'interactive';
1.8       harris41  585: <font size='-1'><INPUT TYPE="button" NAME="returnvalues" VALUE="SELECT"
1.10      harris41  586: onClick="javascript:select_data('$title','$url')">
1.8       harris41  587: </font>
                    588: <br>
                    589: END
1.18      harris41  590:             $compiledresult.=<<END;
1.21      harris41  591: <b>URL: </b> <A HREF="http://$ENV{'HTTP_HOST'}$url" TARGET='search_preview'>$url</A>
1.17      harris41  592: <br>
1.6       harris41  593: <b>Title:</b> $title<br>
                    594: <b>Author(s):</b> $author<br>
                    595: <b>Subject:</b> $subject<br>
1.9       harris41  596: <b>Keyword(s):</b> $keywords<br>
1.6       harris41  597: <b>Notes:</b> $notes<br>
                    598: <b>Abstract:</b> $shortabstract<br>
                    599: <b>MIME Type:</b> $mimetag{$mime}<br>
                    600: <b>Language:</b> $language{$lang}<br>
                    601: <b>Creation Date:</b> $creationdate<br>
                    602: <b>Last Revision Date:</b> $lastrevisiondate<br>
                    603: <b>Publisher/Owner:</b> $owner<br>
                    604: <b>Copyright/Distribution:</b> $copyright<br>
                    605: <b>Repository Location:</b> $hostname
                    606: </p>
                    607: END
1.18      harris41  608:         }
1.6       harris41  609: 
1.18      harris41  610: 	unless ($compiledresult) {
                    611: 	    $compiledresult="There were no results that matched your query";
                    612: 	}
1.6       harris41  613: 
1.18      harris41  614: 	# make query information persistent to allow for subsequent revision
                    615: 	my $persistent='';
                    616: 	map {
                    617: 	    if (/^form\./ && !/submit/) {
                    618: 		my $name=$_;
                    619: 		my $key=$name;
                    620: 		$name=~s/^form\.//;
                    621: 		$persistent.=<<END;
1.9       harris41  622: <INPUT TYPE='hidden' NAME='$name' VALUE='$ENV{$key}'>
                    623: END
1.18      harris41  624:             }
                    625: 	} (keys %ENV);
1.9       harris41  626: 
1.18      harris41  627: 	$r->print(<<BEGINNING);
1.6       harris41  628: <html>
                    629: <head>
                    630: <title>The LearningOnline Network with CAPA</title>
1.8       harris41  631: BEGINNING
1.18      harris41  632:         $r->print(<<SCRIPT) if $ENV{'form.catalogmode'} eq 'interactive';
1.8       harris41  633: <script>
                    634:     function select_data(title,url) {
                    635: 	changeTitle(title);
                    636: 	changeURL(url);
                    637:     }
                    638:     function changeTitle(val) {
                    639: 	if (opener.inf.document.forms.resinfo.elements.t) {
                    640: 	    opener.inf.document.forms.resinfo.elements.t.value=val;
                    641: 	}
                    642:     }
                    643:     function changeURL(val) {
                    644: 	if (opener.inf.document.forms.resinfo.elements.u) {
                    645: 	    opener.inf.document.forms.resinfo.elements.u.value=val;
                    646: 	}
                    647:     }
                    648: </script>
                    649: SCRIPT
1.18      harris41  650:         $r->print(<<RESULTS);
1.6       harris41  651: </head>
                    652: <body bgcolor="#ffffff">
                    653: <img align=right src=/adm/lonIcons/lonlogos.gif>
                    654: <h1>Search Catalog</h1>
                    655: <form method="post" action="/adm/searchcat">
1.9       harris41  656: <input type='button' value='Revise search request'
                    657: onClick='this.form.submit();'>
1.11      harris41  658: <input type='button' value='CLOSE'
                    659: onClick='self.close();'>
1.9       harris41  660: $persistent
1.6       harris41  661: <hr>
                    662: <h3>Search Query</h3>
                    663: <p>
1.19      harris41  664: <b>Basic search:</b> $ENV{'form.basicexp'}
1.6       harris41  665: </p>
                    666: <h3>Search Results</h3>
                    667: $compiledresult
                    668: </body>
                    669: </html>
                    670: RESULTS
1.18      harris41  671:     }
1.41    ! harris41  672: }
        !           673: 
        !           674: # ------------------------------------------------------------- build_SQL_query
        !           675: sub build_SQL_query {
        !           676: 
1.3       harris41  677: }
1.1       www       678: 
                    679: 1;
                    680: __END__

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