classes/pltableeditor.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2006 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 PLTableEditor {
  23     // the plat/al name of the page
  24     var $pl;
  25     // the table name
  26     var $table;
  27     // joint tables to delete when deleting an entry
  28     var $jtables = array();
  29     // sorting field
  30     var $sort = array();
  31     // the id field
  32     var $idfield;
  33     // possibility to edit the field
  34     var $idfield_editable;
  35     // vars
  36     var $vars;
  37     // number of displayed fields
  38     var $nbfields;
  39     // the field for sorting entries
  40     var $sortfield;
  41     var $sortdesc = false;
  42     // action to do to delete row:
  43         // null => delete effectively, false => no deletion, SQL
  44     var $delete_action;
  45     var $delete_message;
  46     /* table editor for platal
  47      * $plname : the PLname of the page, ex: admin/payments
  48      * $table : the table to edit, ex: profile_medals
  49      * $idfield : the field of the table which is the id, ex: id
  50      * $editid : is the id editable or not (if not, it is considered as an int)
  51      */
  52     function PLTableEditor($plname, $table, $idfield, $editid=false)
  53     {
  54         $this->pl = $plname;
  55         $this->table = $table;
  56         $this->idfield = $idfield;
  57         $this->sortfield = $idfield;
  58         $this->idfield_editable = $editid;
  59         $r = XDB::iterator("SHOW COLUMNS FROM $table");
  60         $this->vars = array();
  61         while ($a = $r->next()) {
  62             // desc will be the title of the column
  63             $a['desc'] = $a['Field'];
  64             $a['display'] = true;
  65
  66             if (substr($a['Type'],0,8) == 'varchar(') {
  67                 // limit editing box size
  68                 $a['Size'] = $a['Maxlength'] = substr($a['Type'], 8, strlen($a['Type']) - 9);
  69                 if ($a['Size'] > 40) $a['Size'] = 40;
  70                 // if too big, put a textarea
  71                 $a['Type'] = ($a['Maxlength']<200)?'varchar':'varchar200';
  72             }
  73             elseif ($a['Type'] == 'text' || $a['Type'] == 'mediumtext')
  74                 $a['Type'] = 'textarea';
  75             elseif (substr($a['Type'],0,4) == 'set(') {
  76                 // get the list of options
  77                 $a['List'] = explode('§',str_replace("','","§",substr($a['Type'], 5, strlen($a['Type']) - 7)));
  78                 if (count($a['List']) == 1) {
  79                     $a['Type'] = 'checkbox';
  80                     $a['Value'] = $a['List'][0];
  81                 } else {
  82                     $a['Type'] = 'set';
  83                 }
  84             }
  85             elseif (substr($a['Type'],0,5) == 'enum(') {
  86                 // get the list of options
  87                 $a['List'] = explode('§',str_replace("','","§",substr($a['Type'], 6, strlen($a['Type']) - 8)));
  88                 $a['Type'] = 'enum';
  89             }
  90             elseif (substr($a['Type'],0,10) == 'timestamp(' || $a['Type'] == 'datetime') {
  91                 $a['Type'] = 'timestamp';
  92             }
  93
  94             $this->vars[$a['Field']] = $a;
  95         }
  96         $this->vars[$idfield]['desc'] = 'id';
  97     }
  98     // called before creating a new entry
  99     function prepare_new()
 100     {
 101         $entry = array();
 102         foreach ($this->vars as $field => $descr) {
 103             $entry[$field] = $descr['Default'];
 104         }
 105         return $this->prepare_edit($entry);
 106     }
 107     // called before editing $entry
 108     function prepare_edit(&$entry) {
 109         foreach ($this->vars as $field => $descr) {
 110             if ($descr['Type'] == 'set') {
 111                 // get the list of options selected
 112                 $selected = explode(',', $entry[$field]);
 113                 $entry[$field] = array();
 114                 foreach ($selected as $option)
 115                     $entry[$field][$option] = 1;
 116             }
 117             if ($descr['Type'] == 'timestamp') {
 118                 // set readable timestamp
 119                 $date =& $entry[$field];
 120                 $date = preg_replace('/([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})/', '\3/\2/\1 \4:\5:\6', $date);
 121             }
 122             if ($descr['Type'] == 'date') {
 123                 $date =& $entry[$field];
 124                 $date = preg_replace('/([0-9]{4})-?([0-9]{2})-?([0-9]{2})/', '\3/\2/\1', $date);
 125             }
 126         }
 127         return $entry;
 128     }
 129     // change display of a field
 130     function describe($name, $desc, $display) {
 131         $this->vars[$name]['desc'] = $desc;
 132         $this->vars[$name]['display'] = $display;
 133     }
 134     // add a join table, when deleting a row corresponding entries will be deleted in these tables
 135     function add_join_table($name,$joinid,$joindel,$joinextra="") {
 136         if ($joindel)
 137             $this->jtables[$name] = array("joinid" => $joinid,"joinextra" => $joinextra?(" AND ".$joinextra):"");
 138     }
 139     // add a sort key
 140     function add_sort_field($key, $desc = false, $default = false)
 141     {
 142         if ($default) {
 143                         $this->sortfield = $key . ($desc ? ' DESC' : '');
 144                 } else {
 145                 $this->sort[] = $key . ($desc ? ' DESC' : '');
 146         }
 147     }
 148     // set an action when trying to delete row
 149     function on_delete($action = NULL, $message = NULL)
 150     {
 151         $this->delete_action = $action;
 152         $this->delete_message = $message;
 153     }
 154     // call when done
 155     function apply(&$page, $action, $id = false) {
 156         $page->changeTpl('core/table-editor.tpl');
 157         $list = true;
 158         if ($action == 'delete') {
 159                 if (!isset($this->delete_action)) {
 160                     foreach ($this->jtables as $table => $j)
 161                         XDB::execute("DELETE FROM {$table} WHERE {$j['joinid']} = {?}{$j['joinextra']}", $id);
 162                     XDB::execute("DELETE FROM {$this->table} WHERE {$this->idfield} = {?}",$id);
 163                     $page->trig("L'entrée ".$id." a été supprimée.");
 164                 } else if ($this->delete_action) {
 165                         XDB::execute($this->delete_action, $id);
 166                         if (isset($this->delete_message)) {
 167                         $page->trig($this->delete_message);
 168                         } else {
 169                         $page->trig("L'entrée ".$id." a été supprimée.");
 170                                 }
 171                 } else {
 172                     $page->trig("Impossible de supprimer l'entrée.");
 173                 }
 174         }
 175         if ($action == 'edit') {
 176             $r = XDB::query("SELECT * FROM {$this->table} WHERE {$this->idfield} = {?}",$id);
 177             $entry = $r->fetchOneAssoc();
 178             $page->assign('entry', $this->prepare_edit($entry));
 179             $page->assign('id', $id);
 180             $list = false;
 181         }
 182         if ($action == 'massadd') {
 183             $importer = new CSVImporter($this->table, $this->idfield_editable ? $this->idfield : null);
 184             $fields   = array();
 185             foreach ($this->vars as $field=>$descr) {
 186                 if ($this->idfield_editable || $field != $this->idfield) {
 187                     $fields[] = $field;
 188                     $importer->describe($field, @$descr['desc']);
 189                 }
 190             }
 191             $page->assign('massadd', true);
 192             $importer->apply($page, $this->pl . '/massadd', $fields);
 193             $list = false;
 194         }
 195         if ($action == 'new') {
 196             if (!$this->idfield_editable) {
 197                 $r = XDB::query("SELECT MAX({$this->idfield})+1 FROM {$this->table}");
 198                 $page->assign('id', $r->fetchOneCell());
 199                 $page->assign('entry', $this->prepare_new());
 200             }
 201             $list = false;
 202         }
 203         if ($action == 'update') {
 204             $values = "";
 205             $cancel = false;
 206             foreach ($this->vars as $field => $descr) {
 207                 if ($values) $values .= ',';
 208                 if (($field == $this->idfield) && !$this->idfield_editable)
 209                     $val = "'".addslashes($id)."'";
 210                 elseif ($descr['Type'] == 'set') {
 211                     $val = "";
 212                     if (Post::has($field)) foreach (Post::v($field) as $option) {
 213                         if ($val) $val .= ',';
 214                         $val .= $option;
 215                     }
 216                     $val = "'".addslashes($val)."'";
 217                 } elseif ($descr['Type'] == 'checkbox') {
 218                     $val = Post::has($field)?"'".addslashes($descr['Value'])."'":"''";
 219                 } elseif (Post::has($field)) {
 220                     $val = Post::v($field);
 221                     if ($descr['Type'] == 'timestamp') {
 222                         $val = preg_replace('/([0-9]{1,2})\/([0-9]{1,2})\/([0-9]{4}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})/', '\3\2\1\4\5\6', $val);
 223                     }
 224                     elseif ($descr['Type'] == 'date') {
 225                         $val = preg_replace('/([0-9]{1,2})\/([0-9]{1,2})\/([0-9]{4})/', '\3-\2-\1', $val);
 226                     }
 227                     $val = "'".addslashes($val)."'";
 228                 } else {
 229                     $cancel = true;
 230                     $page->trig("Il manque le champ ".$field);
 231                 }
 232                 $values .= $val;
 233             }
 234             if (!$cancel) {
 235                 if ($this->idfield_editable && ($id != Post::v($this->idfield)) && $action != 'new')
 236                     XDB::execute("UPDATE {$this->table} SET {$this->idfield} = {?} WHERE {$this->idfield} = {?}", Post::v($this->idfield), $id);
 237                 XDB::execute("REPLACE INTO {$this->table} VALUES ($values)");
 238                 if ($id !== false)
 239                     $page->trig("L'entrée ".$id." a été mise à jour.");
 240                 else
 241                     $page->trig("Une nouvelle entrée a été créée.");
 242             } else
 243                 $page->trig("Impossible de mette à jour.");
 244         }
 245         if ($action == 'sort') {
 246                 $this->sortfield = $id;
 247         }
 248         if ($action == 'sortdesc') {
 249                 $this->sortfield = $id.' DESC';
 250         }
 251         if ($list) {
 252             // user can sort by field by clicking the title of the column
 253             if (isset($this->sortfield)) {
 254                 // add this sort order after the others (chosen by dev)
 255                 $this->add_sort_field($this->sortfield);
 256                 if (substr($this->sortfield,-5) == ' DESC') {
 257                     $this->sortfield = substr($this->sortfield,0,-5);
 258                     $this->sortdesc = true;
 259                 }
 260             }
 261             if (count($this->sort) > 0) {
 262                 $sort = 'ORDER BY ' . join($this->sort, ',');
 263             }
 264             $it = XDB::iterator("SELECT * FROM {$this->table} $sort");
 265             $this->nbfields = 0;
 266             foreach ($this->vars as $field => $descr)
 267                 if ($descr['display']) $this->nbfields++;
 268             $page->assign('list', $it);
 269         }
 270         $page->assign('t', $this);
 271     }
 272 }
 273
 274 ?>