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         //print_R($ff->PDO_DataObject);exit;
  36
  37         $dbini = 'ini_'. basename($this->dburl['path']);
  38
  39
  40         $iniCache = $ff->DB_DataObject[$dbini];
  41         if (!file_exists($iniCache)) {
  42             return;
  43         }
  44
  45         $this->schema = parse_ini_file($iniCache, true);
  46         $this->links = parse_ini_file(preg_replace('/\.ini$/', '.links.ini', $iniCache), true);
  47
  48
  49
  50     }
  51
  52     function updateCharacterSet()
  53     {
  54         $db = DB_DataObject::factory('core_enum')->getDatabaseConnection();
  55         $views = $db->getListOf(  'views');
  56
  57
  58         foreach (array_keys($this->schema) as $tbl){
  59
  60             if(strpos($tbl, '__keys') !== false ){
  61                 continue;
  62             }
  63
  64             if(in_array($tbl , $views)) {
  65                 continue;
  66             }
  67
  68             $ce = DB_DataObject::factory('core_enum');
  69
  70             $ce->query("
  71                 SELECT
  72                         CCSA.character_set_name csname,
  73                         CCSA.collation_name collatename
  74                 FROM
  75                         information_schema.`TABLES` T,
  76                         information_schema.`COLLATION_CHARACTER_SET_APPLICABILITY` CCSA
  77                 WHERE
  78                         CCSA.collation_name = T.table_collation
  79                     AND
  80                         T.table_schema = '{$ce->database()}' -- COLLATE utf8_general_ci
  81                     AND
  82                         T.table_name = '{$tbl}' -- COLLATE utf8_general_ci
  83             ");
  84
  85             if (!$ce->fetch()) {
  86                 continue;
  87             }
  88
  89             if($ce->csname == 'utf8' && $ce->collatename == 'utf8_general_ci'){
  90                 echo "utf8: SKIP $tbl\n";
  91                 continue;
  92             }
  93             // this used to be utf8_unicode_ci
  94             //as the default collation for stored procedure parameters is utf8_general_ci and you can't mix collations.
  95
  96             $ce = DB_DataObject::factory('core_enum');
  97             // not sure why, but convert to does not actually change the 'charset=' bit..
  98             $ce->query("ALTER TABLE $tbl CHARSET=utf8");
  99             $ce->query("ALTER TABLE {$tbl} CONVERT TO CHARACTER SET  utf8 COLLATE utf8_general_ci");
 100             echo "utf8: FIXED {$tbl}\n";
 101
 102         }
 103     }
 104     function updateEngine()
 105     {
 106         $db = DB_DataObject::factory('core_enum');
 107         $db->query("show variables like 'innodb_file_per_table'");
 108         $db->fetch();
 109         if ($db->Value == 'OFF') {
 110             die("Error: set innodb_file_per_table = 1 in my.cnf\n\n");
 111         }
 112
 113         // get a list of table views...
 114         // innodb in single files is far more efficient that MYD or one big innodb file.
 115         // first check if database is using this format.
 116
 117
 118
 119         $db = DB_DataObject::factory('core_enum')->getDatabaseConnection();
 120         $views = $db->getListOf( 'views');  // needs updated pear...
 121
 122
 123
 124
 125         foreach (array_keys($this->schema) as $tbl){
 126
 127             if(strpos($tbl, '__keys') !== false ){
 128                 continue;
 129             }
 130             if(in_array($tbl , $views)) {
 131                 continue;
 132             }
 133
 134             $ce = DB_DataObject::factory('core_enum');
 135
 136             $ce->query("
 137                 select
 138                     engine
 139                 from
 140                     information_schema.tables
 141                 where
 142                     table_schema='{$ce->database()}'
 143                     and
 144                     table_name = '{$tbl}'
 145             ");
 146
 147             if (!$ce->fetch()) {
 148                 continue;
 149             }
 150
 151             if($ce->engine == 'InnoDB' ){
 152                 echo "InnoDB: SKIP $tbl\n";
 153                 continue;
 154             }
 155             // this used to be utf8_unicode_ci
 156             //as the default collation for stored procedure parameters is utf8_general_ci and you can't mix collations.
 157
 158             $ce = DB_DataObject::factory('core_enum');
 159             $ce->query("ALTER TABLE $tbl ENGINE=InnoDB");
 160             echo "InnoDB: FIXED {$tbl}\n";
 161
 162         }
 163     }
 164
 165 }
 166