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<?php |
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declare(strict_types=1); |
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namespace Shoot\Shoot; |
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/** |
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* Represents the data available to a view. |
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*/ |
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class PresentationModel |
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{ |
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/** |
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* Constructs an instance of PresentationModel. Takes an associative array of variables to be set on the model. Only |
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* sets variables which have been defined in the model. |
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* |
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* @param mixed[] $variables |
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*/ |
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final public function __construct(array $variables = []) |
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{ |
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$this->setVariables($variables); |
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} |
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/** |
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* Returns the name of the presentation model. |
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* |
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* @return string |
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*/ |
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final public function getName(): string |
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{ |
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return static::class; |
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} |
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/** |
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* Returns a single variable, or the given default value it it's missing. |
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* |
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* @param string $variable |
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* @param mixed $default |
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* |
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* @return mixed |
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*/ |
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final public function getVariable(string $variable, $default = null) |
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{ |
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return $this->$variable ?? $default; |
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} |
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/** |
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* Returns all variables defined in the model. |
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* |
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* @return mixed[] |
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*/ |
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final public function getVariables(): array |
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{ |
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return get_object_vars($this); |
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} |
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/** |
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* Returns a clone of this presentation model with the new variables set. |
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* |
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* @param mixed[] $variables |
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* |
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* @return PresentationModel |
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*/ |
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final public function withVariables(array $variables): self |
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{ |
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$new = clone $this; |
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$new->setVariables($variables); |
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return $new; |
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} |
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/** |
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* @param mixed[] $variables |
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* |
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* @return void |
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*/ |
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private function setVariables(array $variables): void |
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{ |
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foreach ($variables as $variable => $value) { |
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if ($this->variableExists($variable)) { |
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$this->$variable = $value; |
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} |
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} |
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} |
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/** |
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* @param string $variable |
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* |
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* @return bool |
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*/ |
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private function variableExists(string $variable): bool |
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{ |
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if (static::class === self::class) { |
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return true; |
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} |
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return property_exists($this, $variable); |
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} |
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} |
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shootphp /
shoot
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