modules/Installer/Installer.php

   1 <?php
   2
   3 /**
   4  * An installer-module
   5  * This module installs a chosen module using the data model definitions of the module. At the moment it is assumed that
   6  * all dependencies is installed when trying to install a module.
   7  * @author Sebastian Skejø
   8  */
   9
  10 class Installer extends AOOSModule {
  11     public function show() {
  12         $url = "http://".$_SERVER["HTTP_HOST"].$_SERVER["REQUEST_URI"];
  13         $str = "";
  14
  15         if (isset($_POST["module"])) {
  16             if ($this->installModule($_POST["module"])) {
  17                 $str .= '<p style="color: green;">'.$_POST["module"].' installed successfully!</p>';
  18             }
  19         }
  20
  21         $str .= "<h1>Installed modules:</h1>";
  22         foreach ($this->getInstalledModules() as $module) {
  23             $str .= "<p>".$module."</p>";
  24         }
  25         $str .= "<h1>Uninstalled modules:</h1>";
  26         foreach ($this->getUninstalledModules() as $module) {
  27             $str .= '<form method="post" action="'.$url.'">
  28                 <p>'.$module.'
  29                 <input name="module" type="hidden" value="'.$module.'" />
  30                 <input type="submit" value="Install!" />
  31                 </p>
  32                 </form>';
  33         }
  34         return $str;
  35     }
  36
  37     public function dataModelDefinition() {
  38         $m = $this->core()->modules();
  39 /*        $m = new AOOSModel($this->core());
  40         $m->setColumnIndex(array("NAME", "DEPS"));
  41
  42         $m->setProperty("NAME", AOOSMODEL_TYPE_STRING,
  43             AOOSMODEL_PROP_FROM_DATABASE);*/
  44
  45         return $m;
  46     }
  47
  48     public function postInitialization() {
  49         $m = $this->dataModel();
  50         $m->setTable($this->core()->getSetting("module_table"));
  51         $m->populate();
  52     }
  53
  54     /**
  55      * Returns an array with names of all uninstalled modules
  56      * @return array
  57      */
  58     public function getUninstalledModules() {
  59         $all = $this->getAllModules();
  60         $installed = $this->getInstalledModules();
  61         $uninstalled = array();
  62
  63         foreach ($all as $module) {
  64             if (!in_array($module, $installed)) {
  65                 $uninstalled[] = $module;
  66             }
  67         }
  68         return $uninstalled;
  69     }
  70
  71     /**
  72      * Returns an array with names of all installed modules.
  73      * @return array
  74      */
  75     public function getInstalledModules() {
  76         $modules = $this->getAllModules();
  77         $installed = array();
  78         foreach ($modules as $module) {
  79             if ($this->dataModel()->find(array("NAME" => $module)) !== false) {
  80                 $installed[] = $module;
  81             }
  82         }
  83         return $installed;
  84     }
  85
  86     /**
  87      * Returns an array containing names of both installed and uninstalled modules
  88      * @return array
  89      */
  90     public function getAllModules() {
  91         $this->dataModel()->populate();
  92         $d = dir($this->core()->getSetting("module_dir"));
  93         $modules = array();
  94         while (false !== ($entry = $d->read())) {
  95             $path = $this->core()->getSetting("module_dir").$entry;
  96             if (is_dir($path) && $entry != "." && $entry != "..") {
  97                 $modules[] = $entry;
  98             }
  99         }
 100         return $modules;
 101     }
 102
 103     /**
 104      * Tries to install $module. If install is successfull true is returned, otherwise an AOOSException is thrown and
 105      * false is returned.
 106      * @param $module A string representing the module name
 107      * @return bool
 108      */
 109     public function installModule($module) {
 110         $path = $this->core()->getSetting("module_dir").$module."/".$module.$this->core()->getSetting("extension");
 111         require $path;
 112
 113         $deps = call_user_func(array($module,"dependencies"));
 114         $this->dataModel()->insert(array("NAME" => $module,
 115             "DEPS" => implode(",",$deps)));
 116         $this->dataModel()->save();
 117         print_r($this->core()->modules()->getColumn("NAME"));
 118
 119         $m = $this->core()->loadModule($module);
 120         $m->dataModel()->create();
 121
 122         return true;
 123     }
 124
 125     /**
 126      * Removes a module from the database. If the module is successfully removed true is returned. Otherwise false is
 127      * returned. If $module isn't a module in the database an AOOSException is thrown.
 128      * @param $module A string representing the module name
 129      * @return bool
 130      */
 131     public function uninstallModule($module) {
 132         return true;
 133     }
 134 }
 135 ?>