Total Complexity | 45 |
Total Lines | 255 |
Duplicated Lines | 0 % |
Changes | 4 | ||
Bugs | 0 | Features | 0 |
Complex classes like Router often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Router, and based on these observations, apply Extract Interface, too.
1 | <?php |
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7 | class Router{ |
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8 | use Helper, CheckTrait; |
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9 | |||
10 | private static $instance = null; |
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11 | private array $routers = []; |
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12 | private ?string $prefix = null; |
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13 | private $protocol = null; |
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14 | private $filtersSet = null; |
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15 | private $filter = null; |
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16 | private $group = false; |
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17 | private $lastReturn = null; |
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18 | |||
19 | public function __construct() |
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20 | { |
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21 | return $this; |
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22 | } |
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23 | |||
24 | public static function create(): Router |
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25 | { |
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26 | self::getInstance()->check_config(); |
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27 | self::getInstance()->import(ROUTER_CONFIG['path']); |
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28 | return self::getInstance(); |
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29 | } |
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30 | |||
31 | public static function getInstance(): Router |
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32 | { |
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33 | self::$instance = (is_null(self::$instance)) ? new self() : self::$instance; |
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34 | return self::$instance; |
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35 | } |
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36 | |||
37 | public static function form(string $uri, string $controll): Router |
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38 | { |
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39 | return self::getInstance()->add($uri, $controll, 'form'); |
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40 | } |
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41 | |||
42 | public static function get(string $uri, string $controll): Router |
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43 | { |
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44 | return self::getInstance()->add($uri, $controll, 'get'); |
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45 | } |
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46 | |||
47 | public static function post(string $uri, string $controll): Router |
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48 | { |
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49 | return self::getInstance()->add($uri, $controll, 'post'); |
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50 | } |
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51 | |||
52 | public static function ajax(string $uri, string $controll): Router |
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53 | { |
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54 | return self::getInstance()->add($uri, $controll, 'ajax'); |
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55 | } |
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56 | |||
57 | public static function add(string $uri, string $controll, string $protocol): Router |
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58 | { |
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59 | return self::getInstance()->set($uri, $controll, $protocol); |
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60 | } |
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61 | |||
62 | public function set($url , $role , $protocol = null): Router |
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63 | { |
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64 | $url = (substr($url,0,1) !=='/' and strlen($url) > 0) ? "/{$url}" : $url; |
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65 | |||
66 | foreach($this->routers as $key => $value){ |
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67 | if( md5($this->prefix . $value['url'] . $value['protocol'] ) === md5( $url . $protocol ) ){ |
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68 | throw new Exception("There is already a route with the url {$url} and with the {$protocol} protocol configured."); |
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69 | } |
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70 | } |
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71 | |||
72 | $route = [ |
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73 | 'url' => $this->prefix.$url, |
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74 | 'role' => $role, |
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75 | 'protocol' => $protocol, |
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76 | 'filters' => null, |
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77 | 'group' => self::getInstance()->group |
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78 | ]; |
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79 | |||
80 | $this->routers[] = $route; |
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81 | |||
82 | return self::getInstance(); |
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83 | } |
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84 | |||
85 | public static function group(string $prefix,$callback): Router |
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86 | { |
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87 | self::getInstance()->prefix = (substr($prefix,0,1) !== '/') ? "/{$prefix}" : $prefix; |
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88 | self::getInstance()->group = sha1(date('d/m/Y h:m:i')); |
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89 | $callback(); |
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90 | self::getInstance()->group = null; |
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91 | self::getInstance()->prefix = null; |
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92 | self::getInstance()->lastReturn = true; |
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93 | return self::getInstance(); |
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94 | } |
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95 | |||
96 | public static function name(string $name): Router |
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97 | { |
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98 | |||
99 | if(self::getInstance()->lastReturn){ |
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100 | throw new Exception("There is no reason to call a {$name} route group."); |
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101 | } |
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102 | |||
103 | $currentRoute = end(self::getInstance()->routers); |
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104 | |||
105 | foreach(self::getInstance()->routers as $key => $value){ |
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106 | if(array_key_exists($name, self::getInstance()->routers)){ |
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107 | throw new Exception("There is already a route with the name {$name} configured."); |
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108 | } |
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109 | } |
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110 | |||
111 | $currentRoute['name'] = $name; |
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112 | |||
113 | self::getInstance()->routers[count(self::getInstance()->routers)-1] = $currentRoute; |
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114 | |||
115 | self::getInstance()->lastReturn = null; |
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116 | |||
117 | return self::getInstance(); |
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118 | } |
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119 | |||
120 | private function byName(string $route_name) |
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121 | { |
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122 | $currentProtocol = $this->getProtocol(); |
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123 | |||
124 | $this->check_name($route_name); |
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125 | |||
126 | $route = $this->routers[$route_name]; |
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127 | |||
128 | $this->check_protocol($route['protocol'], $currentProtocol); |
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129 | |||
130 | $this->check_filtering($route); |
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131 | |||
132 | $this->Controller($route['role']); |
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133 | return true; |
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134 | } |
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135 | |||
136 | public function dispatch(?string $route_name = null): bool |
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137 | { |
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138 | if(!is_null($route_name)){ |
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139 | return $this->byName($route_name); |
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140 | } |
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141 | |||
142 | $currentProtocol = $this->getProtocol(); |
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143 | |||
144 | foreach(array_reverse($this->routers) as $r => $route){ |
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145 | |||
146 | $this->hasProtocol($route, $currentProtocol); |
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147 | |||
148 | $route_loop = explode( |
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149 | '/', |
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150 | (substr($route['url'],strlen($route['url'])-1,1) === '/') |
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151 | ? substr($route['url'], 0, -1) |
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152 | : $route['url'] |
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153 | ); |
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154 | |||
155 | /* ONLY FOR DEBUG CONDITION */ |
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156 | $route_request = $route_loop; |
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157 | /*$route_request = explode( |
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158 | '/', |
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159 | (substr($_SERVER['REQUEST_URI'],strlen($_SERVER['REQUEST_URI'])-1,1) === '/') |
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160 | ? substr($_SERVER['REQUEST_URI'], 0, -1) |
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161 | : $_SERVER['REQUEST_URI'] |
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162 | );*/ |
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163 | |||
164 | if(count($route_loop) !== count($route_request)){ |
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165 | continue; |
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166 | } |
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167 | |||
168 | for($rr = 0; $rr < count($route_loop); $rr++){ |
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169 | $param = (substr($route_loop[$rr],0,1)==='{'); |
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170 | |||
171 | if($param){ |
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172 | $param_name = substr($route_loop[$rr],1,strlen($route_loop[$rr])-2); |
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173 | $data[$param_name] = $route_request[$rr]; |
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174 | } |
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175 | |||
176 | if(!$param and $route_loop[$rr] !== $route_request[$rr]){ |
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177 | continue 2; |
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178 | } |
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179 | } |
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180 | |||
181 | $this->check_filtering($route); |
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182 | |||
183 | $this->Controller($route['role']); |
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184 | return true; |
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185 | } |
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186 | |||
187 | throw new Exception('Page not found.',404); |
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188 | } |
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189 | |||
190 | public static function filter($filters): Router |
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191 | { |
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192 | if(self::getInstance()->lastReturn !== null){ |
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193 | $currentGroup = end(self::getInstance()->routers)['group']; |
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194 | |||
195 | foreach (self::getInstance()->routers as $key => $value) { |
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196 | |||
197 | if($value['group'] === $currentGroup){ |
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198 | $currentRoute = self::getInstance()->addFilter(self::getInstance()->routers[$key],$filters); |
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199 | self::getInstance()->routers[$key] = $currentRoute; |
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200 | } |
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201 | |||
202 | } |
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203 | |||
204 | }else{ |
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205 | self::getInstance()->routers[count(self::getInstance()->routers)-1] = self::getInstance()->addFilter(end(self::getInstance()->routers),$filters); |
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206 | } |
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207 | |||
208 | return self::getInstance(); |
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209 | } |
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210 | |||
211 | public static function addFilter(array $route, $filter): array |
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212 | { |
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213 | if(is_null($route['filters'])){ |
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214 | $route['filters'] = $filter; |
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215 | return $route; |
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216 | } |
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217 | |||
218 | $filters = (is_array($filter)) ? $filter : [0 => $filter]; |
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219 | |||
220 | if(is_array($route['filters'])){ |
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221 | foreach ($route['filters'] as $key => $value) { |
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222 | $filters[] = $value; |
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223 | } |
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224 | }else{ |
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225 | $filters[] = $route['filters']; |
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226 | } |
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227 | |||
228 | $route['filters'] = $filters; |
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229 | return $route; |
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230 | } |
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231 | |||
232 | public function Controller(string $controll): void |
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262 | } |
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263 | } |
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264 | |||
265 | } |
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266 |