admin/model/design/layout.php

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<?php
class ModelDesignLayout extends Model {
	public function addLayout($data) {
		$this->db->query("INSERT INTO " . DB_PREFIX . "layout SET name = '" . $this->db->escape((string)$data['name']) . "'");

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

		if (isset($data['layout_route'])) {
			foreach ($data['layout_route'] as $layout_route) {
				$this->db->query("INSERT INTO " . DB_PREFIX . "layout_route SET layout_id = '" . (int)$layout_id . "', store_id = '" . (int)$layout_route['store_id'] . "', route = '" . $this->db->escape($layout_route['route']) . "'");
			}
		}

		if (isset($data['layout_module'])) {
			foreach ($data['layout_module'] as $layout_module) {
				$this->db->query("INSERT INTO " . DB_PREFIX . "layout_module SET layout_id = '" . (int)$layout_id . "', code = '" . $this->db->escape($layout_module['code']) . "', position = '" . $this->db->escape($layout_module['position']) . "', sort_order = '" . (int)$layout_module['sort_order'] . "'");
			}
		}

		return $layout_id;
	}

	public function editLayout($layout_id, $data) {
		$this->db->query("UPDATE " . DB_PREFIX . "layout SET name = '" . $this->db->escape((string)$data['name']) . "' WHERE layout_id = '" . (int)$layout_id . "'");

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

		if (isset($data['layout_route'])) {
			foreach ($data['layout_route'] as $layout_route) {
				$this->db->query("INSERT INTO " . DB_PREFIX . "layout_route SET layout_id = '" . (int)$layout_id . "', store_id = '" . (int)$layout_route['store_id'] . "', route = '" . $this->db->escape($layout_route['route']) . "'");
			}
		}

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

		if (isset($data['layout_module'])) {
			foreach ($data['layout_module'] as $layout_module) {
				$this->db->query("INSERT INTO " . DB_PREFIX . "layout_module SET layout_id = '" . (int)$layout_id . "', code = '" . $this->db->escape($layout_module['code']) . "', position = '" . $this->db->escape($layout_module['position']) . "', sort_order = '" . (int)$layout_module['sort_order'] . "'");
			}
		}
	}

	public function deleteLayout($layout_id) {
		$this->db->query("DELETE FROM " . DB_PREFIX . "layout WHERE layout_id = '" . (int)$layout_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "layout_route WHERE layout_id = '" . (int)$layout_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "layout_module WHERE layout_id = '" . (int)$layout_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "category_to_layout WHERE layout_id = '" . (int)$layout_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "product_to_layout WHERE layout_id = '" . (int)$layout_id . "'");
		$this->db->query("DELETE FROM " . DB_PREFIX . "information_to_layout WHERE layout_id = '" . (int)$layout_id . "'");
	}

	public function getLayout($layout_id) {
		$query = $this->db->query("SELECT DISTINCT * FROM " . DB_PREFIX . "layout WHERE layout_id = '" . (int)$layout_id . "'");

		return $query->row;
	}

	public function getLayouts($data = array()) {
		$sql = "SELECT * FROM " . DB_PREFIX . "layout";