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<?php declare(strict_types=1); |
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namespace Suricate; |
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class Flash |
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{ |
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const TYPE_SUCCESS = 'success'; |
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const TYPE_INFO = 'info'; |
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const TYPE_ERROR = 'error'; |
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const TYPE_DATA = 'data'; |
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public static $types = [ |
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self::TYPE_SUCCESS, |
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self::TYPE_INFO, |
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self::TYPE_ERROR, |
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self::TYPE_DATA, |
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]; |
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private static $items = []; |
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private static $consumed = false; |
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public static function read() |
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{ |
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if (!self::$consumed) { |
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// Get notification |
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self::$items = (array) Suricate::Session()->read('flash'); |
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// Erase (consume) |
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Suricate::Session()->destroy('flash'); |
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self::$consumed = true; |
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} |
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} |
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/** |
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* Render success / info / error messages in HTML |
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* |
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* @return string |
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*/ |
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public static function renderMessages(): string |
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{ |
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self::read(); |
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$availableTypes = [ |
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self::TYPE_SUCCESS => 'success', |
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self::TYPE_INFO => 'info', |
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self::TYPE_ERROR => 'danger' |
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]; |
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$output = ''; |
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foreach ($availableTypes as $type => $displayAlias) { |
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$currentMessage = self::getMessages($type); |
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if (count($currentMessage)) { |
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$output .= '<div class="alert alert-' . $displayAlias . '">' . implode('<br/>', (array) $currentMessage) . '</div>'; |
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} |
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} |
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return $output; |
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} |
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/** |
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* Get flash data for a key |
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* |
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* @param string $key |
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* @return mixed |
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*/ |
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public static function getData(string $key) |
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{ |
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self::read(); |
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if (isset(self::$items[self::TYPE_DATA]) |
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&& array_key_exists($key, self::$items[self::TYPE_DATA])) { |
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return self::$items[self::TYPE_DATA][$key]; |
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} |
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return null; |
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} |
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/** |
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* Get flash message for a type |
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* |
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* @param string $type |
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* @return array |
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*/ |
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public static function getMessages(string $type): array |
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{ |
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self::read(); |
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if (isset(self::$items[$type])) { |
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$result = self::$items[$type]; |
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unset(self::$items[$type]); |
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return $result; |
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} |
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return []; |
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} |
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/** |
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* Write flash message or data to session |
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* |
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* @param string $type |
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* @param mixed $message |
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* @throws \InvalidArgumentException |
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* @return void |
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*/ |
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private static function write(string $type, $message) |
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{ |
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if (in_array($type, static::$types)) { |
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$currentSessionData = Suricate::Session()->read('flash'); |
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if (isset($currentSessionData[$type]) && is_array($currentSessionData[$type])) { |
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$newData = array_merge($currentSessionData[$type], (array) $message); |
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} else { |
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$newData = (array) $message; |
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} |
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$currentSessionData[$type] = $newData; |
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Suricate::Session()->write('flash', $currentSessionData); |
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self::$consumed = false; |
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return; |
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} |
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throw new \InvalidArgumentException("Unknown message type '$type'"); |
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} |
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/** |
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* Write message to flash storage |
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* |
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* @param string $type |
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* @param string $message |
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* @return void |
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*/ |
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public static function writeMessage(string $type, string $message) |
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{ |
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self::write($type, $message); |
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} |
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/** |
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* Write data to flash storage |
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* |
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* @param string $key |
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* @param mixed $data |
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* @return void |
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*/ |
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public static function writeData(string $key, $data) |
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{ |
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self::write(self::TYPE_DATA, [$key => $data]); |
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} |
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} |
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suricate-php /
framework
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