127 lines
3.7 KiB
PHP
127 lines
3.7 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2010, The volkszaehler.org project
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* @package default
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* @license http://www.opensource.org/licenses/gpl-license.php GNU Public License
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*/
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/*
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* This file is part of volkzaehler.org
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*
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* volkzaehler.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* volkzaehler.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with volkszaehler.org. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace Volkszaehler\Model;
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use Doctrine\Common\Collections\ArrayCollection;
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/**
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* Channel entity
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*
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* @author Steffen Vogel <info@steffenvogel.de>
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* @package default
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*
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* @Entity
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*/
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class Channel extends Entity {
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/**
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* @OneToMany(targetEntity="Data", mappedBy="channel", cascade={"remove"})
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* @OrderBy({"timestamp" = "ASC"})
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*/
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protected $data = NULL;
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/** @ManyToMany(targetEntity="Group", mappedBy="channels") */
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protected $groups;
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/**
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* indicator => interpreter, unit mapping
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*
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* @todo replace by properties?
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*/
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protected static $indicators = array(
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'power' => array('meter', 'W'),
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'gas' => array('meter', 'm³'),
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'water' => array('meter', 'm³'),
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'temperature' => array('sensor', '°C'),
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'pressure' => array('sensor', 'hPa'),
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'humidity' => array('sensor', '%')
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);
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/**
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* constructor
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*/
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public function __construct($indicator) {
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parent::__construct();
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if (!in_array($indicator, array_keys(self::$indicators))) {
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throw new \Exception($indicator . ' is no known indicator');
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}
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$this->indicator = $indicator;
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$this->data = new ArrayCollection();
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$this->groups = new ArrayCollection();
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}
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/**
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* Add a new data to the database
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* @todo move to Logger\Logger?
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*/
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public function addData(\Volkszaehler\Model\Data $data) {
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$this->data->add($data);
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}
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/**
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* Obtain channel interpreter to obtain data and statistical information for a given time interval
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*
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* @param Doctrine\ORM\EntityManager $em
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* @param integer $from timestamp in ms since 1970
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* @param integer $to timestamp in ms since 1970
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* @return Interpreter
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*/
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public function getInterpreter(\Doctrine\ORM\EntityManager $em, $from, $to) {
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$interpreterClassName = 'Volkszaehler\Interpreter\\' . ucfirst($this->getType()) . 'Interpreter';
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return new $interpreterClassName($this, $em, $from, $to);
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}
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/**
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* Validate
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*
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* @PrePersist @PreUpdate
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*/
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protected function validate() {
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if ($this->getResolution() <= 0 && $this->getType() == 'meter') {
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throw new Exception('resolution has to be a positive integer');
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}
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}
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/**
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* getter & setter
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*
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* @todo change to new property model
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*/
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public function getName() { return $this->name; }
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public function setName($name) { $this->name = $name; }
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public function getDescription() { return $this->description; }
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public function setDescription($description) { $this->description = $description; }
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public function getResolution() { return $this->resolution; }
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public function setResolution($resolution) { $this->resolution = $resolution; }
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public function getCost() { return $this->cost; }
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public function setCost($cost) { $this->cost = $cost; }
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public function getType() { return self::$indicators[$this->indicator][0]; }
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public function getUnit() { return self::$indicators[$this->indicator][1]; }
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public function getIndicator() { return $this->indicator; }
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}
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?>
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