[1349] | 1 | <?php |
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| 2 | /** |
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| 3 | * Manage workflow module processes providing support for MVC architecture by controlling the process flow. |
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| 4 | * @author Carlos Eduardo Nogueira Gonçalves |
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| 5 | * @version 1.3 |
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| 6 | * @package Workflow |
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| 7 | * @license http://www.gnu.org/copyleft/gpl.html GPL |
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| 8 | */ |
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| 9 | class BaseController |
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| 10 | { |
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| 11 | /* begin attributes declaration */ |
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| 12 | |
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| 13 | /** |
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| 14 | * @var object $view Holds view layer instance |
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| 15 | * @access public |
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| 16 | */ |
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| 17 | var $view = null; |
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| 18 | |
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| 19 | /** |
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| 20 | * @var string $templateFile Template file reference |
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| 21 | * @access public |
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| 22 | */ |
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| 23 | var $templateFile = null; |
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| 24 | |
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| 25 | /** |
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| 26 | * @var object $model Holds model layer instance |
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| 27 | * @access public |
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| 28 | */ |
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| 29 | var $model = null; |
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| 30 | |
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| 31 | /* ends attributes declaration */ |
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| 32 | /** |
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| 33 | * Base controller layer constructor |
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| 34 | * |
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| 35 | * @access public |
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| 36 | * @param object $model Model layer instance for activities business logic |
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| 37 | * @return void |
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| 38 | * @param array $env MVC environment settings |
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| 39 | */ |
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| 40 | function BaseController(&$model , &$env) { |
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| 41 | /* Gets other layers instances for controlling them */ |
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| 42 | $this->view =& $env['view']; |
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| 43 | $this->templateFile =& $env['template_file']; |
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| 44 | $this->model =& $model; |
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| 45 | } |
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| 46 | /* begin methods declaration */ |
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| 47 | |
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| 48 | /** |
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| 49 | * Shows requested interface (template) |
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| 50 | * @param string $file Template file to be presented |
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| 51 | * @return void |
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| 52 | * @access public |
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| 53 | */ |
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| 54 | function showForm($file) { |
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| 55 | $this->templateFile = $file; |
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| 56 | } |
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| 57 | /** |
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| 58 | * Assigns all model's attributes into view layer |
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| 59 | * @return void. |
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| 60 | * @access public |
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| 61 | */ |
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| 62 | function syncVars() { |
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| 63 | /* retrieves only process attributes */ |
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| 64 | $processVars = $this->model->getAttributes(); |
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| 65 | |
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| 66 | /* makes synchronization */ |
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| 67 | foreach ( $processVars as $var => $value ) { |
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| 68 | $this->assign($var, $value); |
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| 69 | } |
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| 70 | } |
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| 71 | |
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| 72 | /** |
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| 73 | * Fills view vars with registered vars from model layer |
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| 74 | * @return void |
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| 75 | * @access public |
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| 76 | */ |
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| 77 | function loadViewVars() { |
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| 78 | foreach ( $this->model->viewData as $var => $value ) { |
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| 79 | $this->assign($var, $value); |
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| 80 | } |
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| 81 | } |
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| 82 | |
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| 83 | /** |
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| 84 | * Assigns value to a view var |
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| 85 | * @param string $var Template var name to be assigned |
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| 86 | * @param mixed $value Value assigned |
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| 87 | * @return void |
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| 88 | * @access public |
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| 89 | */ |
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| 90 | function assign($var, $value) { |
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| 91 | if (!empty($this->view)) |
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| 92 | $this->view->assign($var, $value); |
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| 93 | } |
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| 94 | |
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| 95 | /** |
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| 96 | * Halts activities execution |
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| 97 | * @return void |
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| 98 | * @access public |
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| 99 | */ |
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| 100 | function cancelar() { |
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| 101 | $this->model->setWfProperty($this->model->CANCELAR , true); |
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| 102 | } |
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| 103 | |
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| 104 | /** |
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| 105 | * Normalizes methods names replacing upper case letters by lower case ones, |
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| 106 | * blank spaces by underline chars and non-english chars by english ones. |
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| 107 | * @return string normalized method name |
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| 108 | * @access public |
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| 109 | */ |
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| 110 | function getNormalizedAction($str) { |
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| 111 | $ts = array("/[À-Å]/", "/Æ/", "/Ç/", "/[È-Ë]/", "/[Ì-Ï]/", "/Ð/", "/Ñ/", "/[Ò-ÖØ]/", "/×/", "/[Ù-Ü]/", "/Ý/", "/ß/", "/[à-å]/", "/æ/", "/ç/", "/[è-ë]/", "/[ì-ï]/", "/ð/", "/ñ/", "/[ò-öø]/", "/÷/", "/[ù-ü]/", "/[ý-ÿ]/"); |
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| 112 | $tn = array("A", "AE", "C", "E", "I", "D", "N", "O", "X", "U", "Y", "ss", "a", "ae", "c", "e", "i", "d", "n", "o", "x", "u", "y"); |
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| 113 | $output = strtolower(preg_replace($ts, $tn, $str)); |
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| 114 | while ($i = strpos($output, ' ')) |
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| 115 | $output = substr_replace($output, strtoupper($output[$i+1]), $i, 2); |
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| 116 | return $output; |
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| 117 | } |
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| 118 | |
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| 119 | /** |
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| 120 | * Searches and runs requested action's implementation in model layer |
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| 121 | * @param string $action Requested action |
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| 122 | * @return void |
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| 123 | * @access public |
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| 124 | */ |
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| 125 | function dispatch($action) |
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| 126 | { |
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| 127 | $action = $this->getNormalizedAction($action); |
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| 128 | if (method_exists($this, $action)) |
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| 129 | $this->{$action}(); |
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| 130 | else |
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| 131 | $this->__default(); |
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| 132 | } |
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| 133 | |
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| 134 | /** |
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| 135 | * Default activities action |
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| 136 | * @return void |
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| 137 | * @access public |
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| 138 | */ |
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| 139 | function __default() {} |
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| 140 | |
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| 141 | /** |
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| 142 | * Runs activity. It must be implemented in activities controller classes |
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| 143 | * @abstract |
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| 144 | * @param string $action Requested action |
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| 145 | * @return void |
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| 146 | * @access public |
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| 147 | */ |
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| 148 | function run($action) {} |
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| 149 | |
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| 150 | /** |
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| 151 | * Provides constructor access to its subclasses for processes startup settings |
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| 152 | * @param object $model Model layer instance for activities business logic |
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| 153 | * @param array $env MVC environment settings |
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| 154 | * @return void |
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| 155 | * @access public |
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| 156 | */ |
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| 157 | function super(&$model , &$env) { |
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| 158 | BaseController::BaseController(&$model , &$env); |
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| 159 | } |
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| 160 | /* ends method declarations */ |
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| 161 | } |
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| 162 | |
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| 163 | ?> |
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