classes/jobterms.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2010 Polytechnique.org                              *
   4  *  http://opensource.polytechnique.org/                                   *
   5  *                                                                         *
   6  *  This program is free software; you can redistribute it and/or modify   *
   7  *  it under the terms of the GNU General Public License as published by   *
   8  *  the Free Software Foundation; either version 2 of the License, or      *
   9  *  (at your option) any later version.                                    *
  10  *                                                                         *
  11  *  This program is distributed in the hope that it will be useful,        *
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
  14  *  GNU General Public License for more details.                           *
  15  *                                                                         *
  16  *  You should have received a copy of the GNU General Public License      *
  17  *  along with this program; if not, write to the Free Software            *
  18  *  Foundation, Inc.,                                                      *
  19  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
  20  ***************************************************************************/
  21
  22 class JobTerms {
  23
  24     const ALL = 'all';
  25     const ONLY_JOBS = 'jobs';
  26     const ONLY_MENTORS = 'mentors';
  27
  28     static public function getSubTerms($parent_jtid, $filter = self::ALL) {
  29         switch ($filter) {
  30           case self::ALL:
  31           default:
  32             $table = '';
  33             break;
  34           case self::ONLY_JOBS:
  35             $table = 'profile_job_term';
  36             break;
  37           case self::ONLY_MENTORS:
  38             $table = 'profile_mentor_term';
  39             break;
  40         }
  41         if ($table) {
  42             $count = ', COUNT(DISTINCT j.pid) AS nb';
  43             $join = ' INNER JOIN  profile_job_term_relation AS r2 ON (r2.jtid_1 = e.jtid)
  44                       INNER JOIN  '.$table.' AS j ON (j.jtid = r2.jtid_2)';
  45         } else {
  46             $count = $join = '';
  47         }
  48         return XDB::iterator('SELECT  e.jtid, e.name, e.full_name'.$count.'
  49                                 FROM  profile_job_term_enum AS e
  50                           INNER JOIN  profile_job_term_relation AS r ON (r.jtid_2 = e.jtid)'.$join.'
  51                                WHERE  r.jtid_1 = {?} AND r.computed = "original"
  52                             GROUP BY  e.jtid
  53                             ORDER BY  e.name',
  54                        $parent_jtid);
  55     }
  56
  57     /**
  58      * Display a JSon page containing the sub-branches of a branch in the job terms tree.
  59      * @param $page the Platal page
  60      * @param $filter filter helps to display only jobterms that are contained in jobs or in mentors
  61      *
  62      * @param Env::i('jtid') job term id of the parent branch, if none trunk will be used
  63      * @param Env::v('attrfunc') the name of a javascript function that will be called when a branch
  64      * is chosen
  65      * @param Env::v('treeid') tree id that will be given as first argument of attrfunc function
  66      * the second argument will be the chosen job term id and the third one the chosen job's full name.
  67      */
  68     static public function ajaxGetBranch(&$page, $filter = self::ALL) {
  69         pl_content_headers('application/json');
  70         $page->changeTpl('include/jobterms.branch.tpl', NO_SKIN);
  71         $subTerms = self::getSubTerms(Env::v('jtid'), $filter);
  72         $page->assign('subTerms', $subTerms);
  73         switch ($filter) {
  74           case self::ONLY_JOBS:
  75             $page->assign('filter', 'camarade');
  76             break;
  77           case self::ONLY_MENTORS:
  78             $page->assign('filter', 'mentor');
  79             break;
  80         }
  81         $page->assign('attrfunc', Env::v('attrfunc'));
  82         $page->assign('treeid', Env::v('treeid'));
  83     }
  84
  85     static public function jsAddTree($platalpage, $domElement = '.term_tree', $treeid = '', $attrfunc = '') {
  86         return '$("'.addslashes($domElement).'").jstree({
  87             "core" : {"strings":{"loading":"Chargement ..."}},
  88             "plugins" : ["themes","json_data"],
  89             "themes" : { "url" : platal_baseurl + "css/jstree.css" },
  90             "json_data" : { "ajax" : {
  91                 "url" : platal_baseurl + "'.addslashes($platalpage).'",
  92                 "data" : function(nod) {
  93                     var jtid = 0;
  94                     if (nod != -1) {
  95                         jtid = nod.attr("id").replace(/^.*_([0-9]+)$/, "$1");
  96                     }
  97                     return { "jtid" : jtid, "treeid" : "'.addslashes($treeid).'", "attrfunc" : "'.addslashes($attrfunc).'" }
  98                 }
  99             }} });';
 100     }
 101
 102     /**
 103      * Extract search token from term
 104      * @param $term a utf-8 string that can contain any char
 105      * @param an array of elementary tokens
 106      */
 107     static public function tokenize($term)
 108     {
 109         $term = mb_strtoupper(replace_accent($term));
 110         $term = str_replace(array('/', ',', '(', ')', '"', '&', '»', '«'), ' ', $term);
 111         $tokens = explode(' ', $term);
 112         static $not_tokens = array('ET','AND','DE','DES','DU','D\'','OU','L\'','LA','LE','LES','PAR','AU','AUX','EN','SUR','UN','UNE','IN');
 113         foreach ($tokens as &$t) {
 114             $t = preg_replace(array('/^-+/','/-+$/'), '', $t);
 115             if (substr($t, 1, 1) == '\'' && in_array(substr($t, 0, 2), $not_tokens)) {
 116                 $t = substr($t, 2);
 117             }
 118             if (strlen($t) == 1 || in_array($t, $not_tokens)) {
 119                 $t = false;
 120                 continue;
 121             }
 122         }
 123         return array_filter($tokens);
 124     }
 125
 126     /**
 127      * Create the INNER JOIN query to restrict search to some job terms
 128      * @param $tokens an array of the job terms to look for (LIKE comp)
 129      * @param $table_alias the alias or name of the table with a jtid field to restrict
 130      * @return a partial SQL query
 131      */
 132     static public function token_join_query(array $tokens, $table_alias) {
 133         $joins = '';
 134         $i = 0;
 135         foreach ($tokens as $t) {
 136             ++$i;
 137              $joins .= ' INNER JOIN  profile_job_term_search AS s'.$i.' ON(s'.$i.'.jtid = '.$table_alias.'.jtid AND s'.$i.'.search LIKE '.XDB::escape($t).')';
 138         }
 139         return $joins;
 140     }
 141 }
 142
 143 // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
 144 ?>