File vendors/shells/migrate.php | BEdita API doc

  1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95  96  97  98  99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180

<?php
/*-----8<--------------------------------------------------------------------
 * 
 * BEdita - a semantic content management framework
 * 
 * Copyright 2008 ChannelWeb Srl, Chialab Srl
 * 
 * This file is part of BEdita: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published 
 * by the Free Software Foundation, either version 3 of the License, or 
 * (at your option) any later version.
 * BEdita is distributed WITHOUT ANY WARRANTY; without even the implied 
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License 
 * version 3 along with BEdita (see LICENSE.LGPL).
 * If not, see <http://gnu.org/licenses/lgpl-3.0.html>.
 * 
 *------------------------------------------------------------------->8-----
 */

App::import('Core', 'String');
App::import('Core', 'Controller');
App::import('Core', 'Model');
App::import('Controller', 'App'); // BeditaException
App::import('Model', 'Document');

/**
 * @version         $Revision$
 * @modifiedby      $LastChangedBy$
 * @lastmodified    $LastChangedDate$
 * 
 * $Id$
 */
class MigrateDumpModel extends AppModel {
    var $useTable = "objects";
};

/**
 * Migration scripts base class
 *
 */
abstract class MigrationBase {
    
    protected $model;
    private $handle;
    
    protected function createInsert($data, $t) {
        $fields = "";
        $values = "";
        $count = 0;
        foreach ($data as $k=>$v) {
            if($v !== NULL) {
                if($count > 0) {
                    $fields .= ",";
                    $values .= ",";
                }
                $fields .= "`$k`";
                $values .= "'".addslashes($v)."'";
                $count++;
            }
        }
        return "INSERT INTO $t (".$fields.") VALUES ($values);\n";
    }
    
    public function setModel(Model $m) {
        $this->model = $m;
    }

    public function setFile($f) {
        $this->handle = fopen($f, "w");
        if($this->handle === FALSE) 
            throw new Exception("Error opening file: ".$f);
    }
    
    protected function write($s) {
        fwrite($this->handle, $s);
    }
    
    protected function close() {
        fclose($this->handle);
    }
    
    protected function copyTable($t) {
        $res = $this->model->query("SELECT * from $t");
        foreach ($res as $r) {
            $this->write($this->createInsert($r[$t], $t));
        }
    }

    protected function createExportFromArray(array $arr) {
        foreach ($arr as $method => $q) {
            if($method == "copy") {
                $tables =  explode(" ", $q);
                foreach ($tables as $t) {
                    $this->copyTable($t);
                }
            } else {
                $res = $this->model->query($q);
                if(is_array($res)) {
                    foreach ($res as $r) {
                        $this->$method($r);
                    }
                }
            }
        }
    }
    
    abstract public function createExport();
};

/**
 * Migration shell: shell script to migrate BEdita instances from previous versions.
 * You have to create a specific 'migration' script (defining a Migration class that extends MigrationBase), 
 * like:
 * class Migration extends MigrationBase {
 * }
 */
class MigrateShell extends Shell {

    const DEFAULT_MIGRATION_DUMP = 'bedita-migration.sql' ;
    
    public function main() {
        $this->migrate();
    }
    
    public function migrate() {
        
        $dbCfg = 'default';
        if (isset($this->params['db'])) {
            $dbCfg = $this->params['db'];
        }
        $db = ConnectionManager::getDataSource($dbCfg);
        $dbName = $db->config['database'];
        $this->out("Importing data from db config: $dbCfg - database=".$dbName);
        $model = new MigrateDumpModel();
        $model->setDataSource($dbCfg);
        
        $scr = $this->params['script'];
        if (empty($scr)) {
            $this->out("script file is mandatory, use -script ");
            return;
        }
        $this->out("Using script: $scr");
        include_once($scr);
        
        $migration = new Migration();
        $migration->setModel($model);
        $expFile = self::DEFAULT_MIGRATION_DUMP;
        if (isset($this->params['f'])) {
            $expFile = $this->params['f'];
        }
        if(file_exists($expFile)) {
            $res = $this->in("$expFile exists, overwrite? [y/n]");
            if($res == "y") {
                if(!unlink($expFile)){
                    throw new Exception("Error deleting $expFile");
                }
            } else {
                $this->out("Export aborted. Bye.");
                return;
            }
        }
        
        $migration->setFile($expFile);
        $migration->createExport();
    }
    
    function help() {
    
        $this->out('Available functions:');
        $this->out('1. migrate: migrate db data');
        $this->out(' ');
        $this->out('   Usage: migrate -script <migration-script.php> [-db <dbname>] [-f <sql-dump-filename>]');
        $this->out(' ');
    }
    
}

?>

Classes

Interfaces

Exceptions