mod_inventory_standard.php

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<?php
/* Copyright (C) 2026 Jose MARTINEZ <jose.martinez@pichinov.com>
 *
 * 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 <https://www.gnu.org/licenses/>.
 */
 
require_once DOL_DOCUMENT_ROOT.'/core/modules/inventory/modules_inventory.php';
 
 
class mod_inventory_standard extends ModeleNumRefInventory
{
  public $version = 'dolibarr'; // 'development', 'experimental', 'dolibarr'
 
  public $prefix = 'IV';
 
  public $error = '';
 
  public $name = 'standard';
 
  public $position = 40;
 
 
  public function info($langs)
  {
    global $langs;
    return $langs->trans("SimpleNumRefModelDesc", $this->prefix);
  }
 
 
  public function getExample()
  {
    return $this->prefix."0501-0001";
  }
 
 
  public function canBeActivated($object)
  {
    global $conf, $langs, $db;
 
    $coyymm = '';
    $max = '';
 
    $posindice = strlen($this->prefix) + 6;
    $sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".((int) $posindice).") AS SIGNED)) as max";
    $sql .= " FROM ".MAIN_DB_PREFIX."inventory";
    $sql .= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
    $sql .= " AND entity = ".((int) $conf->entity);
 
    $resql = $db->query($sql);
    if ($resql) {
      $row = $db->fetch_row($resql);
      if ($row) {
        $coyymm = substr($row[0], 0, 6);
        $max = $row[0];
      }
    }
    if ($coyymm && !preg_match('/'.$this->prefix.'[0-9][0-9][0-9][0-9]/i', $coyymm)) {
      $langs->load("errors");
      $this->error = $langs->trans('ErrorNumRefModel', $max);
      return false;
    }
 
    return true;
  }
 
  public function getNextValue($object)
  {
    global $db, $conf;
 
    // first we get the max value
    $posindice = strlen($this->prefix) + 6;
    $sql = "SELECT MAX(CAST(SUBSTRING(ref FROM ".((int) $posindice).") AS SIGNED)) as max";
    $sql .= " FROM ".MAIN_DB_PREFIX."inventory";
    $sql .= " WHERE ref LIKE '".$db->escape($this->prefix)."____-%'";
    $sql .= " AND entity = ".((int) $conf->entity);
 
    $resql = $db->query($sql);
    if ($resql) {
      $obj = $db->fetch_object($resql);
      if ($obj) {
        $max = intval($obj->max);
      } else {
        $max = 0;
      }
    } else {
      dol_syslog("mod_inventory_standard::getNextValue", LOG_DEBUG);
      return -1;
    }
 
    $date = !empty($object->date_inventory) ? $object->date_inventory : (!empty($object->date_creation) ? $object->date_creation : dol_now());
    $yymm = dol_print_date($date, "%y%m");
 
    if ($max >= (pow(10, 4) - 1)) {
      $num = $max + 1;
    } else { // If counter > 9999, we do not format on 4 chars, we take number as it is
      $num = sprintf("%04d", $max + 1);
    }
 
    dol_syslog("mod_inventory_standard::getNextValue return ".$this->prefix.$yymm."-".$num);
    return $this->prefix.$yymm."-".$num;
  }
}