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<?php |
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namespace Alpha\Model\Type; |
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use Alpha\Model\ActiveRecord; |
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use Alpha\Model\ActiveRecordProviderFactory; |
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use Alpha\Model\Type\SmallText; |
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use Alpha\Exception\RecordNotFoundException; |
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use Alpha\Exception\AlphaException; |
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use Alpha\Exception\IllegalArguementException; |
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use Alpha\Util\Config\ConfigProvider; |
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use Alpha\Util\Logging\Logger; |
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/** |
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* The DEnum (Dynamic Enum) complex data type. Similiar to Enum, |
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* except list items are stored in a database table and are editable. |
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* |
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* @since 1.0 |
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* |
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* @author John Collins <[email protected]> |
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* @license http://www.opensource.org/licenses/bsd-license.php The BSD License |
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* @copyright Copyright (c) 2017, John Collins (founder of Alpha Framework). |
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* All rights reserved. |
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* |
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* <pre> |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the |
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* following conditions are met: |
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* |
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* * Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the |
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* following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the |
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* following disclaimer in the documentation and/or other |
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* materials provided with the distribution. |
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* * Neither the name of the Alpha Framework nor the names |
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* of its contributors may be used to endorse or promote |
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* products derived from this software without specific |
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* prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* </pre> |
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*/ |
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class DEnum extends ActiveRecord implements TypeInterface |
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{ |
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/** |
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* An array of valid DEnum options. |
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* |
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* @var array |
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* |
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* @since 1.0 |
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*/ |
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protected $options = array(); |
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/** |
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* The currently selected DEnum option. |
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* |
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* @var int |
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* |
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* @since 1.0 |
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*/ |
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protected $value; |
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/** |
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* The name of the DEnum used in the database. |
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* |
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* @var \Alpha\Model\Type\SmallText |
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* |
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* @since 1.0 |
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*/ |
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protected $name; |
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/** |
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* The name of the database table for the class. |
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* |
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* @var string |
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* |
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* @since 1.0 |
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*/ |
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const TABLE_NAME = 'DEnum'; |
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/** |
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* An array of data display labels for the class properties. |
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* |
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* @var array |
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* |
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* @since 1.0 |
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*/ |
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protected $dataLabels = array('ID' => 'DEnum ID#', 'name' => 'Name'); |
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/** |
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* The message to display to the user when validation fails. |
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* |
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* @var string |
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* |
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* @since 1.0 |
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*/ |
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protected $helper = 'Not a valid denum option!'; |
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/** |
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* Trace logger. |
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* |
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* @var \Alpha\Util\Logging\Logger |
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* |
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* @since 1.2 |
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*/ |
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private static $logger = null; |
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/** |
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* Constructor that sets up the DEnum options. |
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* |
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* @param string $name |
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*/ |
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public function __construct($name = null) |
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{ |
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self::$logger = new Logger('DEnum'); |
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// ensure to call the parent constructor |
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parent::__construct(); |
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$this->markTransient('options'); |
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$this->markTransient('value'); |
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$this->markTransient('helper'); |
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$this->name = new SmallText($name); |
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if (isset($name)) { |
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$this->saveIfNew(); |
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} |
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} |
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/** |
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* Saves a new DEnum record with the same name as this instance if one does not already exist |
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* |
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* @return void |
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* |
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* @since 3.0 |
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*/ |
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public function saveIfNew() |
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{ |
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if (isset($this->name) && $this->checkTableExists()) { |
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try { |
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$this->loadByAttribute('name', $this->name); |
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} catch (RecordNotFoundException $e) { |
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// DEnum does not exist so create it |
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$this->save(); |
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} |
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try { |
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$this->getOptions(); |
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} catch (AlphaException $e) { |
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self::$logger->warn($e->getMessage()); |
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} |
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} |
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} |
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/** |
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* Setter for the name of the DEnum used in the database. |
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* |
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* @param string $name |
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* |
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* @since 1.0 |
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*/ |
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public function setName($name) |
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{ |
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$this->name->setValue($name); |
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} |
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/** |
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* Get the array of DEnum options from the database. |
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* |
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* @param bool $alphaSort |
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* |
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* @return array |
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* |
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* @since 1.0 |
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* |
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* @throws \Alpha\Exception\AlphaException |
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*/ |
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public function getOptions($alphaSort = false) |
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{ |
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try { |
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$options = new self(); |
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$options->loadByAttribute('name', $this->name->getValue()); |
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} catch (RecordNotFoundException $e) { |
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throw new AlphaException('Failed to load DEnum '.$this->name->getValue().', not found in database.'); |
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} |
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// now build an array of item indexes to be returned |
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$count = 0; |
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$this->options = array(); |
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$item = new DEnumItem(); |
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foreach ($item->loadItems($options->getID()) as $DEnumItem) { |
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$this->options[$DEnumItem->getID()] = $DEnumItem->getValue(); |
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++$count; |
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} |
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if ($alphaSort) { |
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asort($this->options, SORT_STRING); |
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} |
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return $this->options; |
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} |
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/** |
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* Getter for the validation helper string. |
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* |
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* @return string |
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* |
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* @since 1.0 |
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*/ |
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public function getHelper() |
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{ |
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return $this->helper; |
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} |
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/** |
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* Set the validation helper text. |
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* |
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* @param string $helper |
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* |
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* @since 1.0 |
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*/ |
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public function setHelper($helper) |
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{ |
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$this->helper = $helper; |
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} |
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/** |
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* Getter for the name. |
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* |
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* @return SmallText |
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* |
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* @since 1.0 |
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*/ |
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public function getName() |
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{ |
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return $this->name; |
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} |
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/** |
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* Used to get the current DEnum item selected index value. |
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* |
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* @return int |
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* |
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* @since 1.0 |
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*/ |
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public function getValue() |
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{ |
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return $this->value; |
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} |
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/** |
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* Used to get the current DEnum item string value. |
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* |
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* @return string |
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* |
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* @since 1.0 |
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*/ |
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public function getDisplayValue() |
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{ |
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// check to see if the options have already been loaded from the DB |
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if (empty($this->options)) { |
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$this->getOptions(); |
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} |
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$val = Integer::zeroPad($this->value); |
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if (isset($this->options[$val])) { |
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return $this->options[$val]; |
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} else { |
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return 'Unknown'; |
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} |
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} |
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/** |
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* Used to select the current DEnum item. |
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* |
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* @param string $item |
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* |
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* @since 1.0 |
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*/ |
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public function setValue($item) |
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{ |
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// check to see if the options have already been loaded from the DB |
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if (empty($this->options)) { |
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$this->getOptions(); |
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} |
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// confirm that the item ID provided is a valid key for the options array |
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if (in_array($item, array_keys($this->options))) { |
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$this->value = $item; |
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} else { |
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throw new IllegalArguementException($this->getHelper()); |
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} |
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} |
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/** |
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* Gets the count from the database of the DEnumItems associated with this object. |
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* |
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* @return int |
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* |
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* @since 1.0 |
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* |
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* @throws \Alpha\Exception\AlphaException |
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*/ |
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public function getItemCount() |
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{ |
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$config = ConfigProvider::getInstance(); |
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$provider = ActiveRecordProviderFactory::getInstance($config->get('db.provider.name'), $this); |
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$sqlQuery = 'SELECT COUNT(ID) AS item_count FROM DEnumItem WHERE DEnumID = \''.$this->getID().'\';'; |
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$this->setLastQuery($sqlQuery); |
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$result = $provider->query($sqlQuery); |
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if (count($result) > 0 && isset($result[0]['item_count'])) { |
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return $result[0]['item_count']; |
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} else { |
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throw new AlphaException('Failed to get the item count for the DEnum. Database error string is ['.$provider->getLastDatabaseError().']'); |
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} |
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} |
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340
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/** |
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341
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* Used to get the DenumItem ID for the given option name. |
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* |
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* @param string $optionName |
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* |
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* @return int |
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* |
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347
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* @since 1.0 |
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348
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*/ |
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349
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|
public function getOptionID($optionName) |
|
350
|
|
|
{ |
|
351
|
|
|
$denumItem = new DEnumItem(); |
|
352
|
|
|
$denumItem->loadByAttribute('value', $optionName); |
|
353
|
|
|
$id = $denumItem->getID(); |
|
354
|
|
|
|
|
355
|
|
|
if (!empty($id)) { |
|
356
|
|
|
return $id; |
|
357
|
|
|
} else { |
|
358
|
|
|
return 0; |
|
359
|
|
|
} |
|
360
|
|
|
} |
|
361
|
|
|
|
|
362
|
|
|
/** |
|
363
|
|
|
* Used to convert the object to a printable string. |
|
364
|
|
|
* |
|
365
|
|
|
* @return string |
|
366
|
|
|
* |
|
367
|
|
|
* @since 1.0 |
|
368
|
|
|
*/ |
|
369
|
|
|
public function __toString() |
|
370
|
|
|
{ |
|
371
|
|
|
return strval($this->value); |
|
372
|
|
|
} |
|
373
|
|
|
} |
|
374
|
|
|
|