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