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<?php |
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namespace Helix\Asana\Base; |
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use RuntimeException; |
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/** |
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* A resource with a GID. |
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* |
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* @see https://developers.asana.com/docs/object-hierarchy |
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*/ |
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abstract class AbstractEntity extends Data { |
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/** |
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* All entity classes must redeclare this to match their REST directory. |
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*/ |
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const DIR = ''; |
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/** |
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* All entity classes must redeclare this to match their `resource_type`. |
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*/ |
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const TYPE = ''; |
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/** |
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* Defines `opt_fields` expressions for lazy-loading/reloading fields. |
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* |
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* If not set here, the field name is used as-is. |
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* |
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* @var string[] `fieldName => (expression)` |
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*/ |
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const OPT_FIELDS = []; |
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/** |
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* @param self $entity |
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* @return bool |
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* @internal pool |
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*/ |
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final public function __merge (self $entity): bool { |
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$old = $this->toArray(); |
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$this->data = array_merge($this->data, array_diff_key($entity->data, $this->diff)); |
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return $this->toArray() !== $old; |
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} |
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/** |
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* The entity's canonical REST path. |
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* |
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* @return string |
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*/ |
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final public function __toString (): string { |
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return static::DIR . '/' . $this->getGid(); |
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} |
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/** |
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* Lazy-loads missing fields. |
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* |
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* @param string $field |
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* @return mixed |
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*/ |
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protected function _get (string $field) { |
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if (!array_key_exists($field, $this->data) and $this->hasGid()) { |
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$this->_reload($field); |
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} |
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return parent::_get($field); |
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} |
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/** |
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* @param string $field |
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*/ |
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protected function _reload (string $field): void { |
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assert($this->hasGid()); |
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$remote = $this->api->get($this, ['opt_fields' => static::OPT_FIELDS[$field] ?? $field]); |
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assert(array_key_exists($field, $remote)); |
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$this->_setField($field, $remote[$field]); |
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$this->api->getPool()->add($this); |
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} |
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protected function _setData (array $data): void { |
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// meaningless once the entity is being created. it's constant. |
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unset($data['resource_type'], $data['type']); |
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parent::_setData($data); |
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} |
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/** |
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* @return null|string |
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*/ |
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final public function getGid (): ?string { |
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return $this->data['gid'] ?? null; |
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} |
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/** |
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* Identifiers the entity is pooled with. |
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* |
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* @return string[] |
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*/ |
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public function getPoolKeys () { |
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return [$this->getGid(), (string)$this]; |
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} |
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/** |
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* All entity classes must declare a `TYPE` constant. |
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* |
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* @return string |
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*/ |
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final public function getResourceType (): string { |
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return static::TYPE; |
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} |
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/** |
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* @return bool |
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*/ |
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final public function hasGid (): bool { |
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return isset($this->data['gid']); |
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} |
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/** |
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* Fully reloads the entity from Asana. |
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* |
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* @return $this |
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*/ |
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public function reload () { |
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assert($this->hasGid()); |
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$remote = $this->api->get($this, ['opt_expand' => 'this']); |
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if (!isset($remote['gid'])) { // deleted? |
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$this->api->getPool()->remove($this->getPoolKeys()); |
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throw new RuntimeException("{$this} was deleted upstream."); |
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} |
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$this->_setData($remote); |
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$this->api->getPool()->add($this); |
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return $this; |
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} |
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133
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} |
hfw /
asana
