我们来生成第一个模型

复制代码 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'

MassAssignmentException，laravel保护我们不能直接插入记录。比如，在一些特殊情况下我们需要直接利用表单的信息填充数据库记录，但是如果我们并没有在表单中添加密码字段，而黑客产生了密码字段连同我们的其他字段一起送回服务器，这将产生修改密码的危险，所以我们必须明确的告诉laravel我们的模型那些字段是可以直接填充的。

修改我们的模型文件 Article.php

<?php namespace App;use Illuminate\Database\Eloquent\Model;class Article extends Model { protected $fillable = [ 'title', 'body', 'published_at' ];}

表示，title, body, published_at 是可以直接填充的。

退出 tinker，重新进入

>>> $article = App\Article::create(['title' => 'New Article', 'body' => 'New body', 'published_at' => Carbon\Carbon::now()]);=> <App\Article #000000005051b2c7000000007ec432dd> { title: "New Article", body: "New body", published_at: <Carbon\Carbon #000000005051b2c6000000007ec4081d> { date: "2015-03-28 06:55:19", timezone_type: 3, timezone: "UTC" }, updated_at: "2015-03-28 06:55:19", created_at: "2015-03-28 06:55:19", id: 2 } # It's ok>>> 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" ], [ "id" => "2", "title" => "New Article", "body" => "New body", "published_at" => "2015-03-28 06:55:19", "created_at" => "2015-03-28 06:55:19", "updated_at" => "2015-03-28 06:55:19" ] ]>>> $article = App\Article::find(2);=> <App\Article #000000005051b22b000000007ec432dd> { id: "2", title: "New Article", body: "New body", published_at: "2015-03-28 06:55:19", created_at: "2015-03-28 06:55:19", updated_at: "2015-03-28 06:55:19" }>>> $article->update(['body' => 'New Updaet Body']);=> true#update自动调用save()

以上所述就是本文的全部内容了，希望能够对大家学习Laravel5框架有所帮助。