Classes

File builder/form/field/FormFieldMultipleSelectChoice.class.php

File builder/form/field/FormFieldMultipleSelectChoice.class.php

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<?php
/**
 * This class manage select fields.
 * It provides you additionnal field options :
 * <ul>
 *  <li>multiple : Type of select field, mutiple allow you to check several options.</li>
 * </ul>
 * @package     Builder
 * @subpackage  Form\field
 * @copyright   &copy; 2005-2019 PHPBoost
 * @license     https://www.gnu.org/licenses/gpl-3.0.html GNU/GPL-3.0
 * @author      Regis VIARRE <crowkait@phpboost.com>
 * @version     PHPBoost 5.2 - last update: 2016 10 28
 * @since       PHPBoost 2.0 - 2009 04 28
 * @contributor Arnaud GENET <elenwii@phpboost.com>
 * @contributor Julien BRISWALTER <j1.seth@phpboost.com>
*/

class FormFieldMultipleSelectChoice extends AbstractFormField
{
    private $selected_options;
    private $options = array();
    private $size = 4;

    /**
     * Constructs a FormFieldMultipleSelectChoice.
     * @param string $id Field id
     * @param string $label Field label
     * @param mixed $value Default value (either a FormFieldEnumOption object or a string corresponding to the FormFieldEnumOption's raw value)
     * @param FormFieldEnumOption[] $options Enumeration of the possible values
     * @param string[] $field_options Map of the field options (this field has no specific option, there are only the inherited ones)
     * @param FormFieldConstraint List of the constraints
     */
    public function __construct($id, $label, array $selected_options, array $available_options, array $field_options = array(), array $constraints = array())
    {
        parent::__construct($id, $label, $selected_options, $field_options, $constraints);

        $this->set_css_form_field_class('form-field-multi-select');

        foreach ($available_options as $option)
        {
            $this->add_option($option);
        }

        $this->set_selected_options($selected_options);
    }

    public function set_selected_options(array $selected_options)
    {
        $value = array();

        foreach ($selected_options as $option)
        {
            if (is_string($option))
            {
                $value[] = $this->get_option($option);
            }
            else if ($option instanceof FormFieldSelectChoiceOption)
            {
                $value[] = $option;
            }
            else
            {
                throw new FormBuilderException('option ' . $option . ' isn\'t recognized');
            }
        }
        $this->selected_options = $value;
    }

    public function retrieve_value()
    {
        $request = AppContext::get_request();

        if ($request->has_parameter($this->get_html_id()))
        {
            $selected_options = $request->get_array($this->get_html_id());

            $value = array();
            foreach ($this->get_options() as $option)
            {
                if (in_array($option->get_raw_value(), $selected_options))
                {
                    $value[] = $option;
                }
            }
            $this->set_value($value);
        }
        else
        {
            $this->set_value(array());
        }
    }

    /**
     * @return string The html code for the select.
     */
    public function display()
    {
        $template = $this->get_template_to_use();

        $this->assign_common_template_variables($template);

        $template->assign_block_vars('fieldelements', array(
            'ELEMENT' => $this->get_html_code()->render(),
        ));

        return $template;
    }

    private function get_html_code()
    {
        $tpl = new FileTemplate('framework/builder/form/FormFieldMultipleSelectChoice.tpl');

        $lang = LangLoader::get('main');
        $tpl->put_all(array(
            'NAME' => $this->get_html_id(),
            'ID' => $this->get_id(),
            'HTML_ID' => $this->get_html_id(),
            'FORM_ID' => $this->get_form_id(),
            'SIZE' => $this->size,
            'CSS_CLASS' => $this->get_css_class(),
            'C_DISABLED' => $this->is_disabled(),
            'C_REQUIRED' => $this->is_required(),
            'L_SELECT_ALL' => $lang['select_all'],
            'L_UNSELECT_ALL' => $lang['select_none'],
            'L_SELECT_EXPLAIN' => $lang['explain_select_multiple']
        ));


        foreach ($this->get_options() as $multiple_select_option)
        {
            if ($multiple_select_option instanceof FormFieldSelectChoiceGroupOption)
            {
                foreach ($multiple_select_option->get_options() as $option)
                {
                    $select = $this->is_selected($option);
                    if ($select)
                    {
                        $option->set_active();
                    }
                }
            }
            else
            {
                $select = $this->is_selected($multiple_select_option);
                if ($select)
                {
                    $multiple_select_option->set_active();
                }
            }

            $tpl->assign_block_vars('options', array(
                'OPTION' => $multiple_select_option->display()
            ));
        }
        return $tpl;
    }

    protected function compute_options(array &$field_options)
    {
        foreach($field_options as $attribute => $value)
        {
            $attribute = TextHelper::strtolower($attribute);
            switch ($attribute)
            {
                case 'size':
                    $this->size = $value;
                    unset($field_options['size']);
                    break;
            }
        }
        parent::compute_options($field_options);
    }

    private function is_selected($option)
    {
        return in_array($option, $this->selected_options);
    }

    protected function get_default_template()
    {
        return new FileTemplate('framework/builder/form/FormField.tpl');
    }

    private function add_option(FormFieldEnumOption $option)
    {
        $option->set_field($this);
        $this->options[] = $option;
    }

    private function get_options()
    {
        return $this->options;
    }

    private function get_option($identifier)
    {
        foreach ($this->options as $option)
        {
            if ($option->get_raw_value() == $identifier || $option->get_label() == $identifier)
            {
                return $option;
            }
        }
        return null;
    }

    protected function get_js_specialization_code()
    {
        return 'field.getValue = function()
        {
            return jQuery("#'.$this->get_html_id().' :selected").length;
        }';
    }
}
?>