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<?php |
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/** |
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* micrometa |
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* |
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* @category Jkphl |
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* @package Jkphl\Micrometa |
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* @subpackage Jkphl\Micrometa\Ports\Item |
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* @author Joschi Kuphal <[email protected]> / @jkphl |
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* @copyright Copyright © 2017 Joschi Kuphal <[email protected]> / @jkphl |
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* @license http://opensource.org/licenses/MIT The MIT License (MIT) |
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*/ |
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/*********************************************************************************** |
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* The MIT License (MIT) |
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* |
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* Copyright © 2017 Joschi Kuphal <[email protected]> / @jkphl |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy of |
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* this software and associated documentation files (the "Software"), to deal in |
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* the Software without restriction, including without limitation the rights to |
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of |
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* the Software, and to permit persons to whom the Software is furnished to do so, |
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* subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS |
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR |
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER |
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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***********************************************************************************/ |
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namespace Jkphl\Micrometa\Ports\Item; |
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use Jkphl\Micrometa\Application\Item\ItemInterface; |
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use Jkphl\Micrometa\Ports\Exceptions\OutOfBoundsException; |
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use Jkphl\Micrometa\Ports\Rel\AlternateInterface; |
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use Jkphl\Micrometa\Ports\Rel\RelInterface; |
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/** |
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* Item object model |
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* |
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* @package Jkphl\Micrometa |
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* @subpackage Jkphl\Micrometa\Ports |
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*/ |
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class ItemObjectModel extends ItemList implements ItemObjectModelInterface |
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{ |
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/** |
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* Rel declarations |
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* |
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* @var RelInterface[] |
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*/ |
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protected $rels; |
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/** |
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* Alternate resources |
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* |
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* @var AlternateInterface[] |
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*/ |
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protected $alternates; |
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/** |
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* ItemList constructor |
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* |
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* @param ItemInterface[] $items Items |
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* @param RelInterface[] $rels Rel declarations |
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* @param AlternateInterface[] $alternates Alternate resources |
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*/ |
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public function __construct(array $items = [], array $rels = [], array $alternates = []) |
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{ |
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parent::__construct($items); |
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$this->rels = $rels; |
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$this->alternates = $alternates; |
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} |
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/** |
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* Return all rel declarations of a particular type |
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* |
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* @param string $type Rel type |
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* @param int|null $index Optional: particular index |
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* @return RelInterface|RelInterface[] Single rel=* declaration or list of particular rel declarations |
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* @throws OutOfBoundsException If the rel type is out of bounds |
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* @throws OutOfBoundsException If the rel index is out of bounds |
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* @api |
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*/ |
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public function rel($type, $index = null) |
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{ |
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if ($index === null) { |
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return $this->rels(); |
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} |
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// If the rel type is out of bounds |
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if (!array_key_exists($type, $this->rels)) { |
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throw new OutOfBoundsException( |
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sprintf(OutOfBoundsException::INVALID_REL_TYPE_STR, $type), |
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OutOfBoundsException::INVALID_REL_TYPE |
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); |
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} |
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// If the rel index is out of bounds |
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if (!is_int($index) || !array_key_exists($index, $this->rels[$type])) { |
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throw new OutOfBoundsException( |
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sprintf(OutOfBoundsException::INVALID_REL_INDEX_STR, $index, $type), |
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OutOfBoundsException::INVALID_REL_INDEX |
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); |
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} |
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return $this->rels[$type][$index]; |
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} |
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/** |
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* Return all rel=* declaration groups |
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* |
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* @return RelInterface[] Rel=* declaration groups |
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* @api |
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*/ |
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public function rels() |
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{ |
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return $this->rels; |
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} |
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/** |
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* Return all alternate resources |
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* |
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* @return AlternateInterface[] Alternate resources |
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* @api |
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*/ |
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public function alternates() |
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{ |
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return $this->alternates; |
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} |
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/** |
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* Return the alternate resource of a particular type |
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* |
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* @param string $type Alternate representation type |
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* @return AlternateInterface|null Alternate resource |
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* @throws OutOfBoundsException If the alternate type is out of bounds |
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* @api |
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*/ |
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public function alternate($type) |
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{ |
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// If the alternate type is out of bounds |
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if (!array_key_exists($type, $this->alternates)) { |
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throw new OutOfBoundsException( |
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sprintf(OutOfBoundsException::INVALID_ALTERNATE_TYPE_STR, $type), |
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OutOfBoundsException::INVALID_ALTERNATE_TYPE |
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); |
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} |
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return $this->alternates[$type]; |
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} |
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} |
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Let’s assume that you have a directory layout like this:
and let’s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as
OtherDir/Foo.php
does not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php
, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: