我们来生成第一个模型
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。
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: "UTC"
}
}
$article->toArray();
=> [
"title" => "My First Article","body" => "Some content...","published_at" => <Carbon\Carbon #000000005c4b7ee600000000ab91dcb6> {
date: "2015-03-28 06:37:22",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","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","updated_at" => "2015-03-28 06:42:03"
]
]
$article = App\Article::find(1);
=> <App\Article #000000005c4b7e1600000000ab91a676> {
id: "1",title: "My First Update Title",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",updated_at: "2015-03-28 06:42:03"
}
]
$article = App\Article::where('body','Some content...')->first();
=> <App\Article #000000005c4b7e1900000000ab91a676> {
id: "1",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。
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
It's ok
App\Article::all()->toArray();
=> [
[
"id" => "1","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",published_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。
原文链接：https://www.f2er.com/laravel/22159.html