Laravel 5框架学习之Eloquent （laravel 的ORM）

我们来生成第一个模型

代码如下:
php artisan make:model Article
#输出
Model created successfully.
Created Migration: 2015_03_28_062517_create_articles_table

查看一下生成的文件 app/Article.php

<?php namespace App;use Illuminate/Database/Eloquent/Model;class Article extends Model { //}

没什么特别的，除了继承自 Model 以外，但是具有强大的功能，这些都封装在laravel的Model中。模型自动具有了 save() update() findXXX() 等强大的功能。

tinker 是 laravel提供的命令行工具，可以和项目进行交互。

php artisan tinker#以下是在tinker中的交互输入Psy Shell v0.4.1 (PHP 5.4.16 — cli) by Justin Hileman>>> $name = 'zhang jinglin';=> "zhang jinglin">>> $name=> "zhang jinglin">>> $article = new App/Article;=> <App/Article #000000005c4b7ee400000000ab91a676> {}>>> $article->title = 'My First Article';=> "My First Article">>> $article->body = 'Some content...';=> "Some content...">>> $article->published_at = Carbon/Carbon::now();=> <Carbon/Carbon #000000005c4b7ee600000000ab91dcb6> {    date: "2015-03-28 06:37:22",    timezone_type: 3,    timezone: "UTC"  }>>> $article;=> <App/Article #000000005c4b7ee400000000ab91a676> {    title: "My First Article",    body: "Some content...",    published_at: <Carbon/Carbon #000000005c4b7ee600000000ab91dcb6> {      date: "2015-03-28 06:37:22",      timezone_type: 3,      timezone: "UTC"    }  }>>> $article->toArray();=> [    "title"    => "My First Article",    "body"     => "Some content...",    "published_at" => <Carbon/Carbon #000000005c4b7ee600000000ab91dcb6> {      date: "2015-03-28 06:37:22",      timezone_type: 3,      timezone: "UTC"    }  ]>>> $article->save();=> true#查看数据结果，添加了一条记录>>> App/Article::all()->toArray();=> [    [      "id"      => "1",      "title"    => "My First Article",      "body"     => "Some content...",      "published_at" => "2015-03-28 06:37:22",      "created_at"  => "2015-03-28 06:38:53",      "updated_at"  => "2015-03-28 06:38:53"    ]  ]>>> $article->title = 'My First Update Title';=> "My First Update Title">>> $article->save();=> true>>> App/Article::all()->toArray();=> [    [      "id"      => "1",      "title"    => "My First Update Title",      "body"     => "Some content...",      "published_at" => "2015-03-28 06:37:22",      "created_at"  => "2015-03-28 06:38:53",      "updated_at"  => "2015-03-28 06:42:03"    ]  ]  >>> $article = App/Article::find(1);=> <App/Article #000000005c4b7e1600000000ab91a676> {    id: "1",    title: "My First Update Title",    body: "Some content...",    published_at: "2015-03-28 06:37:22",    created_at: "2015-03-28 06:38:53",    updated_at: "2015-03-28 06:42:03"  }>>> $article = App/Article::where('body', 'Some content...')->get();=> <Illuminate/Database/Eloquent/Collection #000000005c4b7e1800000000ab91a676> [    <App/Article #000000005c4b7e1b00000000ab91a676> {      id: "1",      title: "My First Update Title",      body: "Some content...",      published_at: "2015-03-28 06:37:22",      created_at: "2015-03-28 06:38:53",      updated_at: "2015-03-28 06:42:03"    }  ]>>> $article = App/Article::where('body', 'Some content...')->first();=> <App/Article #000000005c4b7e1900000000ab91a676> {    id: "1",    title: "My First Update Title",    body: "Some content...",    published_at: "2015-03-28 06:37:22",    created_at: "2015-03-28 06:38:53",    updated_at: "2015-03-28 06:42:03"  }>>> >>> $article = App/Article::create(['title' => 'New Article', 'body' => 'New body', 'published_at' => Carbon/Carbon::now()]);Illuminate/Database/Eloquent/MassAssignmentException with message 'title'