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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Form\Extension\Core\ChoiceList; /** * Contains choices that can be selected in a form field. * * Each choice has three different properties: * * - Choice: The choice that should be returned to the application by the * choice field. Can be any scalar value or an object, but no * array. * - Label: A text representing the choice that is displayed to the user. * - Value: A uniquely identifying value that can contain arbitrary * characters, but no arrays or objects. This value is displayed * in the HTML "value" attribute. * * @author Bernhard Schussek <bschussek@gmail.com> */ interface ChoiceListInterface { /** * Returns the list of choices * * @return array The choices with their indices as keys */ public function getChoices(); /** * Returns the values for the choices * * @return array The values with the corresponding choice indices as keys */ public function getValues(); /** * Returns the choice views of the preferred choices as nested array with * the choice groups as top-level keys. * * Example: * * <source> * array( * 'Group 1' => array( * 10 => ChoiceView object, * 20 => ChoiceView object, * ), * 'Group 2' => array( * 30 => ChoiceView object, * ), * ) * </source> * * @return array A nested array containing the views with the corresponding * choice indices as keys on the lowest levels and the choice * group names in the keys of the higher levels */ public function getPreferredViews(); /** * Returns the choice views of the choices that are not preferred as nested * array with the choice groups as top-level keys. * * Example: * * <source> * array( * 'Group 1' => array( * 10 => ChoiceView object, * 20 => ChoiceView object, * ), * 'Group 2' => array( * 30 => ChoiceView object, * ), * ) * </source> * * @return array A nested array containing the views with the corresponding * choice indices as keys on the lowest levels and the choice * group names in the keys of the higher levels * * @see getPreferredValues */ public function getRemainingViews(); /** * Returns the choices corresponding to the given values. * * The choices can have any data type. * * The choices must be returned with the same keys and in the same order * as the corresponding values in the given array. * * @param array $values An array of choice values. Not existing values in * this array are ignored * * @return array An array of choices with ascending, 0-based numeric keys */ public function getChoicesForValues(array $values); /** * Returns the values corresponding to the given choices. * * The values must be strings. * * The values must be returned with the same keys and in the same order * as the corresponding choices in the given array. * * @param array $choices An array of choices. Not existing choices in this * array are ignored * * @return array An array of choice values with ascending, 0-based numeric * keys */ public function getValuesForChoices(array $choices); /** * Returns the indices corresponding to the given choices. * * The indices must be positive integers or strings accepted by * {@link FormConfigBuilder::validateName()}. * * The index "placeholder" is internally reserved. * * The indices must be returned with the same keys and in the same order * as the corresponding choices in the given array. * * @param array $choices An array of choices. Not existing choices in this * array are ignored * * @return array An array of indices with ascending, 0-based numeric keys * * @deprecated Deprecated since version 2.4, to be removed in 3.0. */ public function getIndicesForChoices(array $choices); /** * Returns the indices corresponding to the given values. * * The indices must be positive integers or strings accepted by * {@link FormConfigBuilder::validateName()}. * * The index "placeholder" is internally reserved. * * The indices must be returned with the same keys and in the same order * as the corresponding values in the given array. * * @param array $values An array of choice values. Not existing values in * this array are ignored * * @return array An array of indices with ascending, 0-based numeric keys * * @deprecated Deprecated since version 2.4, to be removed in 3.0. */ public function getIndicesForValues(array $values); }
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