git.roojs.org Git - Pman.Core/blob - UpdateDatabase/MysqlEngineCharset.php

   1 <?php
   2 /**
   3   fixes character set and engine=InnoDB.. in Mysql
   4   more efficent
   5  */
   6
   7 class Pman_Core_UpdateDatabase_MysqlEngineCharset {
   8
   9     var $dburl;
  10     var $schema = array();
  11     var $links = array();
  12
  13     function __construct()
  14     {
  15
  16         $this->loadIniFiles(); //?? shared???
  17
  18         // update the engine first - get's around 1000 character limit on indexes..cd
  19         // however - Innodb does not support fulltext indexes, so this may fail...
  20         $this->updateEngine();
  21
  22         $this->updateCharacterSet();
  23
  24
  25     }
  26
  27     function loadIniFiles()
  28     {
  29         // will create the combined ini cache file for the running user.
  30
  31         $ff = HTML_FlexyFramework::get();
  32         $ff->generateDataobjectsCache(true);
  33         $this->dburl = parse_url($ff->database);
  34
  35
  36         $dbini = 'ini_'. basename($this->dburl['path']);
  37
  38
  39         $iniCache = isset( $ff->PDO_DataObject) ?  $ff->DB_DataObject['schema_location'] : $ff->DB_DataObject[$dbini];
  40         if (!file_exists($iniCache)) {
  41             return;
  42         }
  43
  44         $this->schema = parse_ini_file($iniCache, true);
  45         $this->links = parse_ini_file(preg_replace('/\.ini$/', '.links.ini', $iniCache), true);
  46
  47
  48
  49     }
  50
  51     function updateCharacterSet()
  52     {
  53         $db = DB_DataObject::factory('core_enum')->getDatabaseConnection();
  54         $views = $db->getListOf(  'views');
  55
  56
  57         foreach (array_keys($this->schema) as $tbl){
  58
  59             if(strpos($tbl, '__keys') !== false ){
  60                 continue;
  61             }
  62
  63             if(in_array($tbl , $views)) {
  64                 continue;
  65             }
  66
  67             $ce = DB_DataObject::factory('core_enum');
  68
  69             $ce->query("
  70                 SELECT
  71                         CCSA.character_set_name csname,
  72                         CCSA.collation_name collatename
  73                 FROM
  74                         information_schema.`TABLES` T,
  75                         information_schema.`COLLATION_CHARACTER_SET_APPLICABILITY` CCSA
  76                 WHERE
  77                         CCSA.collation_name = T.table_collation
  78                     AND
  79                         T.table_schema = '{$ce->database()}' -- COLLATE utf8_general_ci
  80                     AND
  81                         T.table_name = '{$tbl}' -- COLLATE utf8_general_ci
  82             ");
  83
  84             if (!$ce->fetch()) {
  85                 continue;
  86             }
  87
  88             if($ce->csname == 'utf8' && $ce->collatename == 'utf8_general_ci'){
  89                 echo "utf8: SKIP $tbl\n";
  90                 continue;
  91             }
  92             // this used to be utf8_unicode_ci
  93             //as the default collation for stored procedure parameters is utf8_general_ci and you can't mix collations.
  94
  95             $ce = DB_DataObject::factory('core_enum');
  96             // not sure why, but convert to does not actually change the 'charset=' bit..
  97             $ce->query("ALTER TABLE $tbl CHARSET=utf8");
  98             $ce->query("ALTER TABLE {$tbl} CONVERT TO CHARACTER SET  utf8 COLLATE utf8_general_ci");
  99             echo "utf8: FIXED {$tbl}\n";
 100
 101         }
 102     }
 103     function updateEngine()
 104     {
 105         $db = DB_DataObject::factory('core_enum');
 106         $db->query("show variables like 'innodb_file_per_table'");
 107         $db->fetch();
 108         if ($db->Value == 'OFF') {
 109             die("Error: set innodb_file_per_table = 1 in my.cnf\n\n");
 110         }
 111
 112         // get a list of table views...
 113         // innodb in single files is far more efficient that MYD or one big innodb file.
 114         // first check if database is using this format.
 115
 116
 117
 118         $db = DB_DataObject::factory('core_enum')->getDatabaseConnection();
 119         $views = $db->getListOf( 'views');  // needs updated pear...
 120
 121
 122
 123
 124         foreach (array_keys($this->schema) as $tbl){
 125
 126             if(strpos($tbl, '__keys') !== false ){
 127                 continue;
 128             }
 129             if(in_array($tbl , $views)) {
 130                 continue;
 131             }
 132
 133             $ce = DB_DataObject::factory('core_enum');
 134
 135             $ce->query("
 136                 select
 137                     engine
 138                 from
 139                     information_schema.tables
 140                 where
 141                     table_schema='{$ce->database()}'
 142                     and
 143                     table_name = '{$tbl}'
 144             ");
 145
 146             if (!$ce->fetch()) {
 147                 continue;
 148             }
 149
 150             if($ce->engine == 'InnoDB' ){
 151                 echo "InnoDB: SKIP $tbl\n";
 152                 continue;
 153             }
 154             // this used to be utf8_unicode_ci
 155             //as the default collation for stored procedure parameters is utf8_general_ci and you can't mix collations.
 156
 157             $ce = DB_DataObject::factory('core_enum');
 158             $ce->query("ALTER TABLE $tbl ENGINE=InnoDB");
 159             echo "InnoDB: FIXED {$tbl}\n";
 160
 161         }
 162     }
 163
 164 }
 165