model是MVC里的M
model的读取流程：数据库表=>model类实例=>controller透传=>前端展示
感觉没有python的peewee模块简洁
创建一个model
创建文件：src/AppBundle/Entity/BlogPost.php
<?php namespace AppBundle\Entity; use Doctrine\ORM\Mapping as ORM; /** * BlogPost * * @ORM\Table() * @ORM\Entity */ class BlogPost { /** * @var integer * * @ORM\Column(name="id", type="integer") * @ORM\Id * @ORM\GeneratedValue(strategy="AUTO") */ private $id; /** * @var string * * @ORM\Column(name="title", type="string", length=255) */ private $title; /** * @var string * * @ORM\Column(name="body", type="text") */ private $body; /** * @var \DateTime * * @ORM\Column(name="create_time", type="datetime") */ private $createTime; /** * Get id * * @return integer */ public function getId() { return $this->id; } /** * Set title * * @param string $title * @return BlogPost */ public function setTitle($title) { $this->title = $title; return $this; } /** * Get title * * @return string */ public function getTitle() { return $this->title; } /** * Set body * * @param string $body * @return BlogPost */ public function setBody($body) { $this->body = $body; return $this; } /** * Get body * * @return string */ public function getBody() { return $this->body; } /** * @return \DateTime */ public function getCreateTime() { return $this->createTime; } /** * @param \DateTime $createTime */ public function setCreateTime($createTime) { $this->createTime = $createTime; } }
说明：
BlogPost这个model从含义上表达了一篇博客，从实现上表达了数据库表的一行，有id、title、body、createTime几个属性，其中id是数据库的主键（自增1，不需要setId方法），title是博客的标题，body是博客内容，createTime是博客创建时间
配置网站数据库连接
数据库配置app/config/parameters.yml文件
parameters: database_host: 127.0.0.1 database_port: 3306 database_name: mywebsite database_user: root database_password: shareditor@126.COM mailer_transport: smtp mailer_host: 127.0.0.1 mailer_user: null mailer_password: null secret: 1a0cb131fb193436d0f6ce467f2d8b6c7c5b02da
app/console工具
$ php app/console doctrine:database:create # 初始化数据库 $ php app/console doctrine:schema:update --force # 新建数据表
手工往数据库里插入一行数据
mysql> insert into blog_post(title,body,create_time) values('这是标题','这是内容',now());
model的读取
src/AppBundle/Controller/BlogController.php中的showAction方法
public function showAction(Request $request) { $blogPostRepository = $this->getDoctrine()->getRepository('AppBundle:BlogPost'); $blogposts = $blogPostRepository->findAll(); return $this->render('blog/show.html.twig', array('title' => $blogposts[0]->getTitle(), 'content' => $blogposts[0]->getBody())); }
app/Resources/views/blog/show.html.twig
{% extends "base.html.twig" %} {% block title %}博客内容{% endblock title %} {% block body %} <div class="row jumbotron"> <div class="col-md-1 col-xs-1"></div> <div class="col-md-10 col-xs-10"><h1>{{ title }}</h1></div> <div class="col-md-1 col-xs-1"></div> </div> <div class="row"> <div class="col-md-1 col-xs-1"></div> <div class="col-md-10 col-xs-10"><h4>{{ content }}</h4></div> <div class="col-md-1 col-xs-1"></div> </div> {% endblock body %}
