我们来生成第一个模型
<br />php artisan make:model Article<br />#输出<br />Model created successfully.<br />Created Migration: 2015_03_28_062517_create_articles_table<br />
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;=> {}>>> $article->title = 'My First Article';=> "My First Article">>> $article->body = 'Some content...';=> "Some content...">>> $article->published_at = Carbon\Carbon::now();=> { date: "2015-03-28 06:37:22", timezone_type: 3, timezone: "UTC" }>>> $article;=> { title: "My First Article", body: "Some content...", published_at: { date: "2015-03-28 06:37:22", timezone_type: 3, timezone: "UTC" } }>>> $article->toArray();=> [ "title" => "My First Article", "body" => "Some content...", "published_at" => { 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);=> { 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();=> [ { 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();=> { 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()]);=> { title: "New Article", body: "New body", published_at: { 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);=> { <strong>*本文来@源gao@daima#com搞(%代@#码@网2</strong><pre>搞代gaodaima码
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。
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转载请注明原文链接：Laravel 5框架学习之Eloquent （laravel 的ORM）_php实例
转载请注明原文链接：Laravel 5框架学习之Eloquent （laravel 的ORM）_php实例
