admin/model/localisation/geo_zone.php

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<?php
class ModelLocalisationGeoZone extends Model {
	public function addGeoZone($data) {
		$this->db->query("INSERT INTO " . DB_PREFIX . "geo_zone SET name = '" . $this->db->escape((string)$data['name']) . "', description = '" . $this->db->escape((string)$data['description']) . "', date_added = NOW()");

		$geo_zone_id = $this->db->getLastId();

		if (isset($data['zone_to_geo_zone'])) {
			foreach ($data['zone_to_geo_zone'] as $value) {
				$this->db->query("DELETE FROM " . DB_PREFIX . "zone_to_geo_zone WHERE geo_zone_id = '" . (int)$geo_zone_id . "' AND country_id = '" . (int)$value['country_id'] . "' AND zone_id = '" . (int)$value['zone_id'] . "'");				

				$this->db->query("INSERT INTO " . DB_PREFIX . "zone_to_geo_zone SET country_id = '" . (int)$value['country_id'] . "', zone_id = '" . (int)$value['zone_id'] . "', geo_zone_id = '" . (int)$geo_zone_id . "', date_added = NOW()");
			}
		}

		$this->cache->delete('geo_zone');
		
		return $geo_zone_id;
	}

	public function editGeoZone($geo_zone_id, $data) {
		$this->db->query("UPDATE " . DB_PREFIX . "geo_zone SET name = '" . $this->db->escape((string)$data['name']) . "', description = '" . $this->db->escape((string)$data['description']) . "', date_modified = NOW() WHERE geo_zone_id = '" . (int)$geo_zone_id . "'");

		$this->db->query("DELETE FROM " . DB_PREFIX . "zone_to_geo_zone WHERE geo_zone_id = '" . (int)$geo_zone_id . "'");

		if (isset($data['zone_to_geo_zone'])) {
			foreach ($data['zone_to_geo_zone'] as $value) {
				$this->db->query("DELETE FROM " . DB_PREFIX . "zone_to_geo_zone WHERE geo_zone_id = '" . (int)$geo_zone_id . "' AND country_id = '" . (int)$value['country_id'] . "' AND zone_id = '" . (int)$value['zone_id'] . "'");				

				$this->db->query("INSERT INTO " . DB_PREFIX . "zone_to_geo_zone SET country_id = '" . (int)$value['country_id'] . "', zone_id = '" . (int)$value['zone_id'] . "', geo_zone_id = '" . (int)$geo_zone_id . "', date_added = NOW()");
			}
		}

		$this->cache->delete('geo_zone');
	}

	public function deleteGeoZone($geo_zone_id) {
		$this->db->query("DELETE FROM " . DB_PREFIX . "geo_zone WHERE geo_zone_id = '" . (int)$geo_zone_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "zone_to_geo_zone WHERE geo_zone_id = '" . (int)$geo_zone_id . "'");

		$this->cache->delete('geo_zone');
	}

	public function getGeoZone($geo_zone_id) {
		$query = $this->db->query("SELECT DISTINCT * FROM " . DB_PREFIX . "geo_zone WHERE geo_zone_id = '" . (int)$geo_zone_id . "'");

		return $query->row;
	}

	public function getGeoZones($data = array()) {
		if ($data) {
			$sql = "SELECT * FROM " . DB_PREFIX . "geo_zone";

			$sort_data = array(
				'name',
				'description'
			);

			if (isset($data['sort']) && in_array($data['sort'], $sort_data)) {
				$sql .= " ORDER BY " . $data['sort'];