| 1 | <?php |
| 2 | /*************************************************************************** |
| 3 | * Copyright (C) 2003-2011 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 | /** Retreives subterms of a term to display in a tree |
| 29 | * @param $parent_jtid the id of the parent jobterm |
| 30 | * @param $filter enable filtering on jobterms that have been used in jobs or in mentors, in |
| 31 | * that case, each row as an 'nb' field that counts all profiles that match |
| 32 | * @param $token_filter a text (usually ending by %) the retreived subterms to jobterms that |
| 33 | * contains this tokens or that one of their children contains it. |
| 34 | * @return an iterator over jobterms with jtid, name, full_name and nb |
| 35 | */ |
| 36 | static public function getSubTerms($parent_jtid, $filter = self::ALL, $token_filter = null) { |
| 37 | switch ($filter) { |
| 38 | case self::ALL: |
| 39 | default: |
| 40 | $table = ''; |
| 41 | break; |
| 42 | case self::ONLY_JOBS: |
| 43 | $table = 'profile_job_term'; |
| 44 | break; |
| 45 | case self::ONLY_MENTORS: |
| 46 | $table = 'profile_mentor_term'; |
| 47 | break; |
| 48 | } |
| 49 | // we are in a tree looking for certain job terms: |
| 50 | $countingterms = false; |
| 51 | if ($table) { |
| 52 | $count = ', COUNT(DISTINCT j.pid) AS nb'; |
| 53 | $join = ' INNER JOIN profile_job_term_relation AS r2 ON (r2.jtid_1 = e.jtid) |
| 54 | INNER JOIN '.$table.' AS j ON (j.jtid = r2.jtid_2)'; |
| 55 | $countingterms = 'j.jtid'; |
| 56 | } else { |
| 57 | $count = $join = ''; |
| 58 | } |
| 59 | if (!empty($token_filter)) { |
| 60 | $join .= ' INNER JOIN profile_job_term_relation AS rtf ON (rtf.jtid_1 = e.jtid) '. |
| 61 | self::token_join_query(self::tokenize($token_filter), 'rtf', 'jtid_2'); |
| 62 | if (!$countingterms) { |
| 63 | $countingterms = 'rtf.jtid_2'; |
| 64 | } |
| 65 | } |
| 66 | if (!$countingterms) { |
| 67 | $select_leaf = 'IF(r_subbranch.jtid_1 IS NULL,1,0)'; |
| 68 | $join .= ' LEFT JOIN profile_job_term_relation AS r_subbranch ON (r_subbranch.jtid_1 = e.jtid AND r_subbranch.computed = "original") '; |
| 69 | } else { |
| 70 | // branches that have counting terms different that |
| 71 | // main branch will have subbranches |
| 72 | $select_leaf = 'MIN('.$countingterms.' = e.jtid)'; |
| 73 | } |
| 74 | return XDB::iterator('SELECT e.jtid, e.name, e.full_name'.$count.', '.$select_leaf.' AS leaf |
| 75 | FROM profile_job_term_enum AS e |
| 76 | INNER JOIN profile_job_term_relation AS r ON (r.jtid_2 = e.jtid)'.$join.' |
| 77 | WHERE r.jtid_1 = {?} AND r.computed = "original" |
| 78 | GROUP BY e.jtid |
| 79 | ORDER BY e.name', |
| 80 | $parent_jtid); |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * Display a JSon page containing the sub-branches of a branch in the job terms tree. |
| 85 | * @param $page the Platal page |
| 86 | * @param $filter filter helps to display only jobterms that are contained in jobs or in mentors |
| 87 | * |
| 88 | * @param Env::i('jtid') job term id of the parent branch, if none trunk will be used |
| 89 | * @param Env::v('attrfunc') the name of a javascript function that will be called when a branch |
| 90 | * is chosen |
| 91 | * @param Env::v('treeid') tree id that will be given as first argument of attrfunc function |
| 92 | * the second argument will be the chosen job term id and the third one the chosen job's full name. |
| 93 | * @param Env::v('text_filter') a string (usually ending by %) that will be used to filter |
| 94 | * subbranches, keeping only the one containing this text in its title or in the title of one of |
| 95 | * its subbranches. |
| 96 | */ |
| 97 | static public function ajaxGetBranch(&$page, $filter = self::ALL) { |
| 98 | pl_content_headers('application/json'); |
| 99 | $page->changeTpl('include/jobterms.branch.tpl', NO_SKIN); |
| 100 | $subTerms = self::getSubTerms(Env::v('jtid'), $filter, Env::v('text_filter')); |
| 101 | $page->assign('subTerms', $subTerms); |
| 102 | switch ($filter) { |
| 103 | case self::ONLY_JOBS: |
| 104 | $page->assign('filter', 'camarade'); |
| 105 | break; |
| 106 | case self::ONLY_MENTORS: |
| 107 | $page->assign('filter', 'mentor'); |
| 108 | break; |
| 109 | } |
| 110 | $page->assign('jtid', Env::v('jtid')); |
| 111 | $page->assign('text_filter', Env::v('text_filter')); |
| 112 | $page->assign('attrfunc', Env::v('attrfunc')); |
| 113 | $page->assign('treeid', Env::v('treeid')); |
| 114 | } |
| 115 | |
| 116 | static public function jsAddTree($platalpage, $domElement = '.term_tree', $treeid = '', $attrfunc = '') { |
| 117 | return '$("'.addslashes($domElement).'").jstree({ |
| 118 | "core" : {"strings":{"loading":"Chargement ..."}}, |
| 119 | "plugins" : ["themes","json_data"], |
| 120 | "themes" : { "url" : platal_baseurl + "css/jstree.css" }, |
| 121 | "json_data" : { "ajax" : { |
| 122 | "url" : platal_baseurl + "'.addslashes($platalpage).'", |
| 123 | "data" : function(nod) { |
| 124 | var jtid = 0; |
| 125 | if (nod != -1) { |
| 126 | jtid = nod.attr("id").replace(/^.*_([0-9]+)$/, "$1"); |
| 127 | } |
| 128 | return { |
| 129 | "jtid" : jtid, |
| 130 | "treeid" : "'.addslashes($treeid).'", |
| 131 | "attrfunc" : "'.addslashes($attrfunc).'" |
| 132 | } |
| 133 | } |
| 134 | }} });'; |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * Extract search token from term |
| 139 | * @param $term a utf-8 string that can contain any char |
| 140 | * @return an array of elementary tokens |
| 141 | */ |
| 142 | static public function tokenize($term) |
| 143 | { |
| 144 | $term = mb_strtoupper(replace_accent($term)); |
| 145 | $term = str_replace(array('/', ',', '(', ')', '"', '&', '»', '«'), ' ', $term); |
| 146 | $tokens = explode(' ', $term); |
| 147 | static $not_tokens = array('ET','AND','DE','DES','DU','D\'','OU','L\'','LA','LE','LES','PAR','AU','AUX','EN','SUR','UN','UNE','IN'); |
| 148 | foreach ($tokens as &$t) { |
| 149 | $t = preg_replace(array('/^-+/','/-+$/'), '', $t); |
| 150 | if (substr($t, 1, 1) == '\'' && in_array(substr($t, 0, 2), $not_tokens)) { |
| 151 | $t = substr($t, 2); |
| 152 | } |
| 153 | if (strlen($t) == 1 || in_array($t, $not_tokens)) { |
| 154 | $t = false; |
| 155 | continue; |
| 156 | } |
| 157 | } |
| 158 | return array_filter($tokens); |
| 159 | } |
| 160 | |
| 161 | /** |
| 162 | * Create the INNER JOIN query to restrict search to some job terms |
| 163 | * @param $tokens an array of the job terms to look for (LIKE comp) |
| 164 | * @param $table_alias the alias or name of the table with a jtid field to restrict |
| 165 | * @param $table_field the name of the field to restrict in table_alias, usually jtid |
| 166 | * @return a partial SQL query |
| 167 | */ |
| 168 | static public function token_join_query(array $tokens, $table_alias, $table_field = 'jtid') { |
| 169 | $joins = ''; |
| 170 | $i = 0; |
| 171 | foreach ($tokens as $t) { |
| 172 | ++$i; |
| 173 | $joins .= ' INNER JOIN profile_job_term_search AS s'.$i.' ON(s'.$i.'.jtid = '.$table_alias.'.'.$table_field.' AND s'.$i.'.search LIKE '.XDB::escape($t).')'; |
| 174 | } |
| 175 | return $joins; |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
| 180 | ?> |