tbl_alter.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Alter one or more table columns/fields
   5  *
   6  * linked from table_structure, uses libraries/tbl_properties.inc.php to display
   7  * form and handles this form data
   8  *
   9  * @version $Id$
  10  */
  11
  12 /**
  13  * Gets some core libraries
  14  */
  15 require_once './libraries/common.inc.php';
  16 require_once './libraries/Table.class.php';
  17
  18 $GLOBALS['js_include'][] = 'functions.js';
  19 require_once './libraries/header.inc.php';
  20
  21 // Check parameters
  22 PMA_checkParameters(array('db', 'table'));
  23
  24 /**
  25  * Gets tables informations
  26  */
  27 require_once './libraries/tbl_common.php';
  28 require_once './libraries/tbl_info.inc.php';
  29 /**
  30  * Displays top menu links
  31  */
  32 $active_page = 'tbl_structure.php';
  33 // I don't see the need to display the links here, they will be displayed later
  34 //require './libraries/tbl_links.inc.php';
  35
  36
  37 /**
  38  * Defines the url to return to in case of error in a sql statement
  39  */
  40 $err_url = 'tbl_structure.php?' . PMA_generate_common_url($db, $table);
  41
  42
  43 /**
  44  * Modifications have been submitted -> updates the table
  45  */
  46 $abort = false;
  47 if (isset($do_save_data)) {
  48     $field_cnt = count($field_orig);
  49     for ($i = 0; $i < $field_cnt; $i++) {
  50         // to "&quot;" in tbl_sql.php
  51         $field_orig[$i]     = urldecode($field_orig[$i]);
  52         if (strcmp(str_replace('"', '&quot;', $field_orig[$i]), $field_name[$i]) == 0) {
  53             $field_name[$i] = $field_orig[$i];
  54         }
  55         $field_default_orig[$i] = urldecode($field_default_orig[$i]);
  56         if (strcmp(str_replace('"', '&quot;', $field_default_orig[$i]), $field_default[$i]) == 0) {
  57             $field_default[$i]  = $field_default_orig[$i];
  58         }
  59         $field_length_orig[$i] = urldecode($field_length_orig[$i]);
  60         if (strcmp(str_replace('"', '&quot;', $field_length_orig[$i]), $field_length[$i]) == 0) {
  61             $field_length[$i] = $field_length_orig[$i];
  62         }
  63         if (!isset($query)) {
  64             $query = '';
  65         } else {
  66             $query .= ', CHANGE ';
  67         }
  68
  69         $query .= PMA_Table::generateAlter($field_orig[$i], $field_name[$i],
  70             $field_type[$i], $field_length[$i], $field_attribute[$i],
  71             isset($field_collation[$i]) ? $field_collation[$i] : '',
  72             isset($field_null[$i]) ? $field_null[$i] : 'NOT NULL',
  73             $field_default[$i],
  74             isset($field_default_current_timestamp[$i]), $field_extra[$i],
  75             isset($field_comments[$i]) ? $field_comments[$i] : '',
  76             $field_default_orig[$i]);
  77     } // end for
  78
  79     // To allow replication, we first select the db to use and then run queries
  80     // on this db.
  81     PMA_DBI_select_db($db) or PMA_mysqlDie(PMA_DBI_getError(), 'USE ' . PMA_backquote($db) . ';', '', $err_url);
  82     // Optimization fix - 2 May 2001 - Robbat2
  83     $sql_query = 'ALTER TABLE ' . PMA_backquote($table) . ' CHANGE ' . $query;
  84     $error_create = FALSE;
  85     $result    = PMA_DBI_try_query($sql_query) or $error_create = TRUE;
  86
  87     if ($error_create == FALSE) {
  88         $message = PMA_Message::success('strTableAlteredSuccessfully');
  89         $message->addParam($table);
  90         $btnDrop = 'Fake';
  91
  92         // garvin: If comments were sent, enable relation stuff
  93         require_once './libraries/relation.lib.php';
  94         require_once './libraries/transformations.lib.php';
  95
  96         $cfgRelation = PMA_getRelationsParam();
  97
  98         // garvin: Rename relations&display fields, if altered.
  99         if (($cfgRelation['displaywork'] || $cfgRelation['relwork']) && isset($field_orig) && is_array($field_orig)) {
 100             foreach ($field_orig AS $fieldindex => $fieldcontent) {
 101                 if ($field_name[$fieldindex] != $fieldcontent) {
 102                     if ($cfgRelation['displaywork']) {
 103                         $table_query = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($cfgRelation['table_info'])
 104                                       . ' SET     display_field = \'' . PMA_sqlAddslashes($field_name[$fieldindex]) . '\''
 105                                       . ' WHERE db_name  = \'' . PMA_sqlAddslashes($db) . '\''
 106                                       . ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\''
 107                                       . ' AND display_field = \'' . PMA_sqlAddslashes($fieldcontent) . '\'';
 108                         $tb_rs    = PMA_query_as_cu($table_query);
 109                         unset($table_query);
 110                         unset($tb_rs);
 111                     }
 112
 113                     if ($cfgRelation['relwork']) {
 114                         $table_query = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($cfgRelation['relation'])
 115                                       . ' SET     master_field = \'' . PMA_sqlAddslashes($field_name[$fieldindex]) . '\''
 116                                       . ' WHERE master_db  = \'' . PMA_sqlAddslashes($db) . '\''
 117                                       . ' AND master_table = \'' . PMA_sqlAddslashes($table) . '\''
 118                                       . ' AND master_field = \'' . PMA_sqlAddslashes($fieldcontent) . '\'';
 119                         $tb_rs    = PMA_query_as_cu($table_query);
 120                         unset($table_query);
 121                         unset($tb_rs);
 122
 123                         $table_query = 'UPDATE ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($cfgRelation['relation'])
 124                                       . ' SET     foreign_field = \'' . PMA_sqlAddslashes($field_name[$fieldindex]) . '\''
 125                                       . ' WHERE foreign_db  = \'' . PMA_sqlAddslashes($db) . '\''
 126                                       . ' AND foreign_table = \'' . PMA_sqlAddslashes($table) . '\''
 127                                       . ' AND foreign_field = \'' . PMA_sqlAddslashes($fieldcontent) . '\'';
 128                         $tb_rs    = PMA_query_as_cu($table_query);
 129                         unset($table_query);
 130                         unset($tb_rs);
 131                     } // end if relwork
 132                 } // end if fieldname has changed
 133             } // end while check fieldnames
 134         } // end if relations/display has to be changed
 135
 136         // garvin: Update comment table for mime types [MIME]
 137         if (isset($field_mimetype) && is_array($field_mimetype) && $cfgRelation['commwork'] && $cfgRelation['mimework'] && $cfg['BrowseMIME']) {
 138             foreach ($field_mimetype AS $fieldindex => $mimetype) {
 139                 if (isset($field_name[$fieldindex]) && strlen($field_name[$fieldindex])) {
 140                     PMA_setMIME($db, $table, $field_name[$fieldindex], $mimetype, $field_transformation[$fieldindex], $field_transformation_options[$fieldindex]);
 141                 }
 142             }
 143         }
 144
 145         $active_page = 'tbl_structure.php';
 146         require './tbl_structure.php';
 147     } else {
 148         PMA_mysqlDie('', '', '', $err_url, FALSE);
 149         // garvin: An error happened while inserting/updating a table definition.
 150         // to prevent total loss of that data, we embed the form once again.
 151         // The variable $regenerate will be used to restore data in libraries/tbl_properties.inc.php
 152         if (isset($orig_field)) {
 153                 $field = $orig_field;
 154         }
 155
 156         $regenerate = true;
 157     }
 158 }
 159
 160 /**
 161  * No modifications yet required -> displays the table fields
 162  */
 163 if ($abort == FALSE) {
 164     if (!isset($selected)) {
 165         PMA_checkParameters(array('field'));
 166         $selected[]   = $field;
 167         $selected_cnt = 1;
 168     } else { // from a multiple submit
 169         $selected_cnt = count($selected);
 170     }
 171
 172     /**
 173      * @todo optimize in case of multiple fields to modify
 174      */
 175     for ($i = 0; $i < $selected_cnt; $i++) {
 176         if (!empty($submit_mult)) {
 177             $field = PMA_sqlAddslashes(urldecode($selected[$i]), TRUE);
 178         } else {
 179             $field = PMA_sqlAddslashes($selected[$i], TRUE);
 180         }
 181         $result        = PMA_DBI_query('SHOW FULL FIELDS FROM ' . PMA_backquote($table) . ' FROM ' . PMA_backquote($db) . ' LIKE \'' . $field . '\';');
 182         $fields_meta[] = PMA_DBI_fetch_assoc($result);
 183         PMA_DBI_free_result($result);
 184     }
 185     $num_fields  = count($fields_meta);
 186     $action      = 'tbl_alter.php';
 187
 188     // Get more complete field information
 189     // For now, this is done just for MySQL 4.1.2+ new TIMESTAMP options
 190     // but later, if the analyser returns more information, it
 191     // could be executed for any MySQL version and replace
 192     // the info given by SHOW FULL FIELDS FROM.
 193     /**
 194      * @todo put this code into a require()
 195      * or maybe make it part of PMA_DBI_get_fields();
 196      */
 197
 198     if (PMA_MYSQL_INT_VERSION < 50025) {
 199         // We also need this to correctly learn if a TIMESTAMP is NOT NULL, since
 200         // SHOW FULL FIELDS says NULL and SHOW CREATE TABLE says NOT NULL (tested
 201         // in MySQL 4.0.25).
 202
 203         $show_create_table = PMA_DBI_fetch_value(
 204             'SHOW CREATE TABLE ' . PMA_backquote($db) . '.' . PMA_backquote($table),
 205             0, 1);
 206         $analyzed_sql = PMA_SQP_analyze(PMA_SQP_parse($show_create_table));
 207     }
 208
 209     require './libraries/tbl_properties.inc.php';
 210 }
 211
 212
 213 /**
 214  * Displays the footer
 215  */
 216 require_once './libraries/footer.inc.php';
 217 ?>