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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