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<?php
/* Copyright (C) 2006-2008 Laurent Destailleur  <eldy@users.sourceforge.net>
 * Copyright (C) 2012      Cedric Salvador      <csalvador@gpcsolutions.fr>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

/**
 *	\file       htdocs/core/class/commonobjectline.class.php
 *  \ingroup    core
 *  \brief      File of the superclass of classes of lines of business objects (invoice, contract, PROPAL, commands, etc. ...)
 */


/**
 *  Parent class for class inheritance lines of business objects
 *  This class is useless for the moment so no inherit are done on it
 */
abstract class CommonObjectLine extends CommonObject
{
	/**
	 * Id of the line
	 * @var int
	 */
	public $id;

	/**
	 * Id of the line
	 * @var int
	 * @deprecated Try to use id property as possible (even if field into database is still rowid)
	 * @see $id
	 */
	public $rowid;

	/**
	 * Product/service unit code ('km', 'm', 'p', ...)
	 * @var string
	 */
	public $fk_unit;


    /**
     *	Returns the translation key from units dictionary.
     *  A langs->trans() must be called on result to get translated value.
     *
     * 	@param	string $type Label type (long or short)
     *	@return	string|int <0 if ko, label if ok
     */
	public function getLabelOfUnit($type = 'long')
	{
		global $langs;

		if (!$this->fk_unit) {
			return '';
		}

		$langs->load('products');

		$label_type = 'label';

		if ($type == 'short')
		{
			$label_type = 'short_label';
		}

		$sql = 'select '.$label_type.' from '.MAIN_DB_PREFIX.'c_units where rowid='.$this->fk_unit;
		$resql = $this->db->query($sql);
		if($resql && $this->db->num_rows($resql) > 0)
		{
			$res = $this->db->fetch_array($resql);
			$label = $res[$label_type];
			$this->db->free($resql);
			return $label;
		}
		else
		{
			$this->error=$this->db->error().' sql='.$sql;
			dol_syslog(get_class($this)."::getLabelOfUnit Error ".$this->error, LOG_ERR);
			return -1;
		}
	}
	// Currently we need function at end of file CommonObject for all object lines. Should find a way to avoid duplicate code.

	// For the moment we use the extends on CommonObject until PHP min is 5.4 so use Traits.
}