Installer.php

   1 <?php
   2 /*=====================================================================*\
   3 || ###################################################################
   4 || # Blue Static ISSO Framework
   5 || # Copyright (c)2005-2008 Blue Static
   6 || #
   7 || # This program is free software; you can redistribute it and/or modify
   8 || # it under the terms of the GNU General Public License as published by
   9 || # the Free Software Foundation; version 2 of the License.
  10 || #
  11 || # This program is distributed in the hope that it will be useful, but
  12 || # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13 || # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  14 || # more details.
  15 || #
  16 || # You should have received a copy of the GNU General Public License along
  17 || # with this program; if not, write to the Free Software Foundation, Inc.,
  18 || # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  19 || ###################################################################
  20 \*=====================================================================*/
  21
  22 /**
  23 * Installer creator (Install.php)
  24 *
  25 * @package      ISSO
  26 */
  27
  28 /**
  29 * Installer
  30 *
  31 * Installer modules should extend this class. In the install module router,
  32 * instantiate the right module. Methods beginning with step*() will be executed
  33 * in numerical order.
  34 *
  35 * @author               Blue Static
  36 * @copyright    Copyright (c)2005 - 2008, Blue Static
  37 * @package              ISSO
  38 *
  39 */
  40 abstract class BSInstaller
  41 {
  42         /**
  43         * All the method steps
  44         * @var array
  45         */
  46         private $steps = array();
  47
  48         /**
  49         * The file name of this module
  50         * @var string
  51         */
  52         protected $fileName;
  53
  54         /**
  55         * Constructor: set up the steps
  56         *
  57         * @param        string  The file name for this module
  58         */
  59         public function __construct($fileName)
  60         {
  61                 $this->fileName = $fileName;
  62
  63                 if (!BSApp::$input instanceof BSInput)
  64                 {
  65                         throw new Exception('BSApp::$input is not an instance of BSInput');
  66                 }
  67
  68                 $methods = get_class_methods($this);
  69                 foreach ($methods as $name)
  70                 {
  71                         if (preg_match('/step([0-9]+)/', $name))
  72                         {
  73                                 $this->steps[] = $name;
  74                         }
  75                 }
  76                 natsort($this->steps);
  77
  78                 $this->_runStep(BSApp::$input->inputClean('step', TYPE_UINT));
  79         }
  80
  81         // ###################################################################
  82         /**
  83         * An abstract method that needs to be overridden by a subclass that
  84         * populates the page title
  85         *
  86         * @return       string  Returns the page title
  87         */
  88         protected abstract function _pageTitle();
  89
  90         // ###################################################################
  91         /**
  92         * Abstract method that will return link to the page after all the
  93         * steps are completed. This needs to provide it's own <a>
  94         *
  95         * @return       string  Final page link
  96         */
  97         protected abstract function _finalLink();
  98
  99         // ###################################################################
 100         /**
 101         * Abstract method that prints out the first welcome screen that the
 102         * user sees when no step has been selected
 103         */
 104         protected abstract function _welcomePage();
 105
 106         // ###################################################################
 107         /**
 108         * Prints out the page header... you really don't do this more than
 109         * once
 110         */
 111         protected function _setUp()
 112         {
 113                 ?>
 114 <DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
 115         "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 116 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
 117 <head>
 118         <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
 119         <title><?= $this->_pageTitle() ?></title>
 120
 121         <style type="text/css">
 122         <!--
 123                 body
 124                 {
 125                         font-family: Verdana, Arial, Helvetica, sans-serif;
 126                         font-size: 12px;
 127                 }
 128
 129                 body a
 130                 {
 131                         color: rgb(0, 0, 238);
 132                 }
 133
 134                 h1
 135                 {
 136                         color: rgb(66, 137, 155);
 137                 }
 138
 139                 .buttonlink
 140                 {
 141                         margin-top: 20px;
 142                 }
 143
 144                 .buttonlink a
 145                 {
 146                         font-weight: bold;
 147                         padding: 5px;
 148                         border: 1px solid black;
 149                         text-decoration: none;
 150                         color: rgb(37, 37, 37);
 151                         background-color: rgb(239, 239, 239);
 152                         margin-top: 20px;
 153                 }
 154         //-->
 155         </style>
 156 </head>
 157 <body>
 158
 159                 <?php
 160         }
 161
 162         // ###################################################################
 163         /**
 164         * Runs the specific step method; if it does not exist, it will throw
 165         * an error
 166         *
 167         * @param        integer Step number
 168         */
 169         protected function _runStep($step)
 170         {
 171                 if ($step == 0)
 172                 {
 173                         $this->_setUp();
 174                         $this->_welcomePage();
 175                         $this->_setDown(0);
 176                 }
 177                 else if (in_array("step$step", $this->steps))
 178                 {
 179                         $this->_setUp();
 180                         $this->{"step$step"}();
 181                         $this->_setDown($step);
 182                 }
 183                 else
 184                 {
 185                         throw new Exception("step$step() does not exist in this module");
 186                 }
 187         }
 188
 189         // ###################################################################
 190         /**
 191         * Prints out the footer part of the page, and the appropriate forwarding
 192         * action button
 193         *
 194         * @param        integer Step number
 195         */
 196         protected function _setDown($step)
 197         {
 198                 // this is the last step, print the final button
 199                 if ($step == sizeof($this->steps))
 200                 {
 201                         echo '<div class="buttonlink">' . $this->_finalLink() . '</div>';
 202                 }
 203                 // just another step
 204                 else
 205                 {
 206                         echo '<div class="buttonlink"><a href="' . $this->fileName . '?step=' . ++$step . '">' . _('Next Step') . '</a></div>';
 207                 }
 208
 209                 echo '
 210 </body>
 211
 212 </html>';
 213         }
 214 }
 215
 216 ?>