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<?php |
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namespace As3\Modlr\Metadata\Traits; |
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use As3\Modlr\Exception\MetadataException; |
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use As3\Modlr\Metadata\AttributeMetadata; |
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/** |
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* Common attribute metadata get, set, and add methods. |
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* |
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* @author Jacob Bare <[email protected]> |
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*/ |
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trait AttributesTrait |
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{ |
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/** |
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* All attribute fields assigned to this metadata object. |
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* An attribute is a "standard" field, such as a string, integer, array, etc. |
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* |
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* @var AttributeMetadata[] |
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*/ |
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public $attributes = []; |
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/** |
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* Adds an attribute field. |
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* |
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* @param AttributeMetadata $attribute |
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* @return self |
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*/ |
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public function addAttribute(AttributeMetadata $attribute) |
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{ |
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$this->validateAttribute($attribute); |
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$this->attributes[$attribute->getKey()] = $attribute; |
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ksort($this->attributes); |
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return $this; |
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} |
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/** |
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* Determines if an attribute supports autocomplete functionality. |
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* |
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* @param string $key The attribute key. |
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* @return bool |
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*/ |
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public function attrSupportsAutocomplete($key) |
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{ |
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return isset($this->getAutocompleteAttributes()[$key]); |
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} |
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/** |
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* Gets an attribute field. |
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* Returns null if the attribute does not exist. |
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* |
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* @param string $key |
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* @return AttributeMetadata|null |
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*/ |
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public function getAttribute($key) |
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{ |
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if (!isset($this->attributes[$key])) { |
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return null; |
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} |
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return $this->attributes[$key]; |
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} |
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/** |
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* Gets all attribute fields. |
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* |
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* @return AttributeMetadata[] |
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*/ |
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public function getAttributes() |
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{ |
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return $this->attributes; |
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} |
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/** |
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* Gets all properties that are flagged for autocomplete in search. |
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* |
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* @return AttributeMetadata[] |
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*/ |
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public function getAutocompleteAttributes() |
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{ |
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static $attrs; |
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if (null !== $attrs) { |
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return $attrs; |
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} |
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$attrs = []; |
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foreach ($this->getAttributes() as $key => $attribute) { |
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if (false === $attribute->hasAutocomplete()) { |
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continue; |
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} |
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$attrs[$key] = $attribute; |
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} |
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return $attrs; |
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} |
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/** |
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* Determines if an attribute field exists. |
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* |
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* @param string $key |
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* @return bool |
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*/ |
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public function hasAttribute($key) |
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{ |
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return null !== $this->getAttribute($key); |
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} |
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/** |
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* Determines any attribute fields exist. |
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* |
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* @return bool |
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*/ |
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public function hasAttributes() |
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{ |
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return !empty($this->attributes); |
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} |
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/** |
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* Validates that the attribute can be added. |
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* |
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* @param AttributeMetadata $attribute |
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* @return self |
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* @throws MetadataException |
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*/ |
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abstract protected function validateAttribute(AttributeMetadata $attribute); |
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} |
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