bebeboutik/modules/filtervp/filtervp.php

<?php
class Filtervp extends Module {
 //    const FILTER_ID = 75;
    const FILTER_ID = 1;
	// const FILTER_SIZE = 272;

	public function __construct() {
		$this->name = 'filtervp';
		$this->tab = 'front_office_features';
		$this->version = '1.0';

        parent::__construct();

        $this->displayName = $this->l('Filter by size');
        $this->description = $this->l('Enable to filter by size in VP.');
    }

    public function install() {
		if(!parent::install()
		OR !$this->registerHook('displayLeftVP')) {
			return FALSE;
		}

		return TRUE;
	}

    public function hookPrivateSales_Edit($params) {

        $attr_groups = Db::getInstance()->ExecuteS('
            SELECT
                al.`name`,
                a.`id_attribute_group`'.($params['sale'] !== NULL? ', (
                SELECT IFNULL(s.`id_sale`, NULL)
                FROM `'._DB_PREFIX_.'attribute_group_ps` s
                WHERE a.`id_attribute_group` = s.`id_attribute_group` AND s.`id_sale` = '.$params['sale']->id.'
            ) AS `id_sale`': '').'
            FROM ps_attribute_group a
            LEFT JOIN ps_attribute_group_lang al ON al.id_attribute_group = a.id_attribute_group
            WHERE al.`id_lang` = 2
        ');

        echo '
        <div class="form-group">
            <label class="control-label">'.$this->l('Attribute groups:').'</label>
            <div class="">
                <select id="attr_groups" name="attr_groups[]" multiple="multiple" size="5" class="form-control">';
            $all_opt = array();
            foreach($attr_groups as $attribute) {
                $all_opt[] = $attribute['id_attribute_group'];
                echo '<option value="'.$attribute['id_attribute_group'].'"'.(isset($attribute['id_sale']) && $attribute['id_sale'] !== NULL?' selected="selected"':'').'>'.$attribute['name'].'</option>';
            }
            echo '
                </select>
            </div>
            <div class="btn-group btn-group-sm" role="group">
                <button type="button" class="select_all_for_attr_group btn btn-default">Tout</button>
                <button type="button" class="clear_for_attr_group btn btn-default">Clear</button>
            </div>
            <script type="text/javascript">
            $(document).ready(function() {
                $("#attr_groups").select2({
                    maximumSelectionLength: '.count($attr_groups).',
                    placeholder: "'.$this->l('Select one or more attribute group:').'",
                    allowClear: true
                });
                $(".select_all_for_attr_group").on("click", function () { $("#attr_groups").select2().val(["'.(implode('","',$all_opt)).'"]).trigger("change"); });
                $(".clear_for_attr_group").on("click", function () { $("#attr_groups").select2().val(null).trigger("change"); });
            });
            </script>
            <div class="clear"></div>
        </div>';
    }

    public function hookPrivateSales_Delete($params) {
        Db::getInstance()->Execute('
            DELETE FROM `'._DB_PREFIX_.'attribute_group_ps`
            WHERE `id_sale` = '.$params['sale']->id
        );
    }

    public function hookPrivateSales_Create($params) {
        if($attr_groups = Tools::getValue('attr_groups')) {
            foreach($attr_groups as $group) {
                Db::getInstance()->Execute('
                    INSERT INTO `'._DB_PREFIX_.'attribute_group_ps` VALUES (
                        '.(int) $group.', '.$params['sale']->id.'
                    )
                ');
            }
        }
    }

    public function hookPrivateSales_Update($params) {
        Db::getInstance()->Execute('
            DELETE FROM `'._DB_PREFIX_.'attribute_group_ps`
            WHERE `id_sale` = '.$params['sale']->id
        );
        $this->hookPrivateSales_Create($params);
    }

    public function hookdisplayLeftVP($params) {
        global $smarty;
        $attributes = self::getAllAttrByGroup(Tools::getValue('id_category'));
        $smarty->assign(array(
            'attr' => $attributes,
        ));

        return $this->display(__FILE__, 'filter.tpl');
    }


  	public static function getAllValueAttr($id_attr, $id_cat){
      	global $cookie;

		$id_lang = $cookie->id_lang;
        $results = Db::getInstance()->ExecuteS('
            SELECT
                al.`name`,
                a.`id_attribute`
            FROM
                `'._DB_PREFIX_.'attribute` a
                INNER JOIN '._DB_PREFIX_.'attribute_lang al ON al.id_lang = "'.$id_lang.'" AND al.id_attribute = a.id_attribute
                INNER JOIN '._DB_PREFIX_.'category_product cp ON cp.id_category = "'.$id_cat.'"
                LEFT JOIN '._DB_PREFIX_.'product p ON cp.id_product = p.id_product
                INNER JOIN '._DB_PREFIX_.'product_attribute pa ON pa.id_product = cp.id_product
                INNER JOIN '._DB_PREFIX_.'product_attribute_combination pac ON pac.id_attribute = a.id_attribute AND pac.id_product_attribute = pa.id_product_attribute
            WHERE
                a.id_attribute_group = "'.$id_attr.'"
            GROUP BY
                a.`id_attribute`
            ORDER BY
                al.`name` ASC
        ');
        return $results;
    }

    public function getAllAttrByGroup($id_cat)
    {
        global $cookie;

        $id_lang = $cookie->id_lang;
        $results = Db::getInstance()->ExecuteS('
            SELECT
                al.`name`,
                a.`id_attribute`,
                agl.`name` as `group`
            FROM
                `'._DB_PREFIX_.'attribute` a
                LEFT JOIN '._DB_PREFIX_.'attribute_lang al ON al.id_lang = '.(int)$id_lang.' AND al.id_attribute = a.id_attribute
                LEFT JOIN '._DB_PREFIX_.'attribute_group_lang agl ON agl.id_attribute_group = a.id_attribute_group AND agl.id_lang = '.(int)$id_lang.'
                LEFT JOIN '._DB_PREFIX_.'attribute_group_ps agp ON agp.id_attribute_group = agl.id_attribute_group
                LEFT JOIN '._DB_PREFIX_.'privatesale_category pc ON pc.id_sale = agp.id_sale
                LEFT JOIN '._DB_PREFIX_.'category_product cp ON cp.id_category = pc.id_category
                LEFT JOIN '._DB_PREFIX_.'product p ON cp.id_product = p.id_product
                INNER JOIN ps_product_attribute pa ON pa.id_product = cp.id_product
                INNER JOIN ps_product_attribute_combination pac ON pac.id_attribute = a.id_attribute AND pac.id_product_attribute = pa.id_product_attribute
            WHERE agp.id_sale IS NOT NULL AND pc.id_category = '.(int)$id_cat.'
            GROUP BY
                a.`id_attribute`
            ORDER BY
                agl.`name` ASC, al.`name` ASC
        ');
        return $results;
    }

    public static function getAttrName($id_attr){
        global $cookie;
        $id_lang = $cookie->id_lang;
        return Db::getInstance()->getValue('
            SELECT
                `public_name`
            FROM `'._DB_PREFIX_.'attribute_group_lang`
            WHERE `id_attribute_group` = "'.(int)$id_attr.'"
            AND `id_lang` = "'.(int)$id_lang.'"
        ');
    }


}