SWDB/application/entity/Building.php

<?php

    /**
     * Building entity file.
     *
     * Creates the entity and makes it available.
     *
     * @category Entity
     */

    /**
     * Require dependent entities if not present.
     */
    require_once(PATH::ENTITY . "Entity.php");
    require_once(PATH::ENTITY . "K_Building.php");

    /**
     * A Building.
     *
     * Represents an object from the table 'building'.
     *
     * @category Entity
     */
    class Building extends Entity{

        /**
         * @var int Owner identifier.
         */
        public $uid;

        /**
         * @var K_Building Base building.
         */
        public $building;

        /**
         * @var int Gain per horu.
         */
        public $gain;

        /**
         * Constructor.
         *
         * Searches the database and retrieves the information about the
         * building, populating it and it's items.
         *
         * @param int $id Building identifier.
         * @global resource Database connection.
         */
        public function __construct($id){

            global $db;

            $statement = $db->prepare("
              SELECT
                uid,
                building,
                gain
              FROM building
              WHERE id = :id;
            ");
            $statement->bindValue(':id', $id, SQLITE3_INTEGER);
            $r = $statement->execute()->fetchArray(SQLITE3_ASSOC);
            if ($r){
                $this->uid = $r["uid"];
                $this->building = new K_Building($r["building"]);
                $this->gain = $r["gain"];
            }
        }
    }
?>