87 lines
2.4 KiB
PHP
87 lines
2.4 KiB
PHP
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<?php
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namespace nur\v\base;
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use nur\b\ValueException;
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use nur\F;
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use nur\str;
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trait TActionSupport {
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/**
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* @return string nom du paramètre qui contient l'action à effectuer.
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* retourner null pour désactiver le support des actions
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*/
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protected function ACTION_PARAM(): ?string {
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return static::ACTION_PARAM;
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}
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/** @return array liste des actions valides */
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protected function VALID_ACTIONS(): ?array {
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return static::VALID_ACTIONS;
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}
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/** @var string|false action à déclencher manuellement */
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private $doAction;
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function doAction(string $action): void {
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$this->doAction = $action;
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}
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/** obtenir l'action demandée par l'utilisateur */
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protected function getAction(): ?string {
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$action = $this->doAction;
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if ($action === false) return null;
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if ($action === null) {
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$actionParam = $this->ACTION_PARAM();
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if ($actionParam === null) return null;
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$action = F::get($actionParam);
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}
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return $action;
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}
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/** vérifier si $action est une action valide */
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protected function isValidAction(string $action): bool {
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if ($action === $this->doAction) return true;
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$validActions = $this->VALID_ACTIONS();
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return $validActions !== null && in_array($action, $validActions);
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}
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/** retourner true si on va déclencher une action */
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protected function willDispatchAction(): bool {
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if ($this->doAction === false) return false;
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$action = $this->getAction();
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return $action !== null && $this->isValidAction($action);
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}
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private $actionDispatched = false;
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private $actionCompleted = true;
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function dispatchAction(bool $dispatch=true): void {
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if ($this->actionDispatched) return;
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if ($dispatch) {
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$action = $this->getAction();
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if ($action !== null) {
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if (!$this->isValidAction($action)) {
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throw ValueException::invalid_value($action, "action");
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}
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$method = str_replace("-", "_", $action) . "_action";
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$method = str::us2camel($method);
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$retval = $this->$method();
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$this->actionCompleted = $retval !== false;
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}
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} else {
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$this->doAction = false;
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}
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$this->actionDispatched = true;
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}
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function haveContent(): bool {
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return parent::haveContent() && (
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!$this->actionCompleted || !$this->willDispatchAction()
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);
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}
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function afterSetup(): void {
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$this->dispatchAction();
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parent::afterSetup();
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}
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}
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