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     var $views = array();
  13
  14     function __construct()
  15     {
  16         // this might get run before we have imported the database
  17         // and hence not have any db.
  18         try {
  19             $this->loadIniFiles(); //?? shared???
  20         } catch(PDO_DataObject_Exception_InvalidConfig $e) {
  21             echo "SKipping MysqlEngineCharse - no database yet\n";
  22             return;
  23         }
  24
  25         $dbo = DB_DataObject::factory('core_enum');
  26         if (is_a($dbo, 'PDO_DataObject')) {
  27
  28             $this->views = $dbo->generator()->introspection()->getListOf('views');
  29         } else {
  30             $db = DB_DataObject::factory('core_enum')->getDatabaseConnection();
  31             $this->views = $db->getListOf( 'views');  // needs updated pear...
  32         }
  33
  34         // update the engine first - get's around 1000 character limit on indexes..cd
  35         // however - Innodb does not support fulltext indexes, so this may fail...
  36         $this->updateEngine();
  37
  38         $this->updateCharacterSet();
  39
  40
  41     }
  42
  43     function loadIniFiles()
  44     {
  45         // will create the combined ini cache file for the running user.
  46
  47         $ff = HTML_FlexyFramework::get();
  48         $ff->generateDataobjectsCache(true);
  49         $this->dburl = parse_url($ff->database);
  50
  51
  52         $dbini = 'ini_'. basename($this->dburl['path']);
  53
  54
  55         $iniCache = isset( $ff->PDO_DataObject) ?  $ff->PDO_DataObject['schema_location'] : $ff->DB_DataObject[$dbini];
  56         if (!file_exists($iniCache)) {
  57             return;
  58         }
  59
  60         $this->schema = parse_ini_file($iniCache, true);
  61         $this->links = parse_ini_file(preg_replace('/\.ini$/', '.links.ini', $iniCache), true);
  62
  63
  64
  65     }
  66
  67     function updateCharacterSet()
  68     {
  69         $views = $this->views;
  70
  71
  72         foreach (array_keys($this->schema) as $tbl){
  73
  74             if(strpos($tbl, '__keys') !== false ){
  75                 continue;
  76             }
  77
  78             if(in_array($tbl , $views)) {
  79                 continue;
  80             }
  81
  82             $ce = DB_DataObject::factory('core_enum');
  83
  84             $ce->query("
  85                 SELECT
  86                         CCSA.character_set_name csname,
  87                         CCSA.collation_name collatename
  88                 FROM
  89                         information_schema.`TABLES` T,
  90                         information_schema.`COLLATION_CHARACTER_SET_APPLICABILITY` CCSA
  91                 WHERE
  92                         CCSA.collation_name = T.table_collation
  93                     AND
  94                         T.table_schema = DATABASE() -- COLLATE utf8_general_ci
  95                     AND
  96                         T.table_name = '{$tbl}' -- COLLATE utf8_general_ci
  97             ");
  98
  99             if (!$ce->fetch()) {
 100                 continue;
 101             }
 102
 103             if($ce->csname == 'utf8' && $ce->collatename == 'utf8_general_ci'){
 104                 echo "utf8: SKIP $tbl\n";
 105                 continue;
 106             }
 107             // this used to be utf8_unicode_ci
 108             //as the default collation for stored procedure parameters is utf8_general_ci and you can't mix collations.
 109
 110             $ce = DB_DataObject::factory('core_enum');
 111             // not sure why, but convert to does not actually change the 'charset=' bit..
 112             $ce->query("ALTER TABLE $tbl CHARSET=utf8");
 113             $ce->query("ALTER TABLE {$tbl} CONVERT TO CHARACTER SET  utf8 COLLATE utf8_general_ci");
 114             echo "utf8: FIXED {$tbl}\n";
 115
 116         }
 117     }
 118     function updateEngine()
 119     {
 120         $db = DB_DataObject::factory('core_enum');
 121         $db->query("show variables like 'innodb_file_per_table'");
 122         $db->fetch();
 123
 124         $pg = HTML_FlexyFramework::get()->page;
 125
 126         if (empty($pg->opts['skip-mysql-checks'])) {
 127             if ($db->Value == 'OFF') {
 128                 die("Error: set innodb_file_per_table = 1 in my.cnf\n\n");
 129             }
 130
 131         }
 132
 133
 134         // get a list of table views...
 135         // innodb in single files is far more efficient that MYD or one big innodb file.
 136         // first check if database is using this format.
 137
 138
 139
 140         $views = $this->views;
 141
 142
 143         foreach (array_keys($this->schema) as $tbl){
 144
 145             if(strpos($tbl, '__keys') !== false ){
 146                 continue;
 147             }
 148
 149             if(in_array($tbl , $views)) {
 150                 continue;
 151             }
 152
 153             $ce = DB_DataObject::factory('core_enum');
 154
 155             $ce->query("
 156                 select
 157                     engine
 158                 from
 159                     information_schema.tables
 160                 where
 161                     table_schema= DATABASE()
 162                     and
 163                     table_name = '{$tbl}'
 164             ");
 165
 166             if (!$ce->fetch()) {
 167                 continue;
 168             }
 169             //AWS is returning captials?
 170             $engine = isset($ce->engine) ? $ce->engine : $ce->ENGINE;
 171
 172             if($engine == 'InnoDB' ){
 173                 echo "InnoDB: SKIP $tbl\n";
 174                 continue;
 175             }
 176             if($engine == 'ndbcluster' ){
 177                 echo "ndbcluster: SKIP $tbl\n";
 178                 continue;
 179             }
 180
 181             // should really determine if we are running in cluster ready ...
 182
 183             // this used to be utf8_unicode_ci
 184             //as the default collation for stored procedure parameters is utf8_general_ci and you can't mix collations.
 185
 186             $ce = DB_DataObject::factory('core_enum');
 187             $ce->query("ALTER TABLE $tbl ENGINE=InnoDB");
 188             echo "InnoDB: FIXED {$tbl}\n";
 189
 190         }
 191     }
 192
 193 }
 194