close
//檔案:指令
php artisan make:model Post
資料夾的app出現一個post.php
內容如下
<?php
//檔案:app/post.php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Post extends Model
{
//
}
<?php
//檔案:app/post.php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Post extends Model
//parents
{
protected $table = 'posts';
//若沒有此行,定義的table會是posts(class名稱的小寫複數型)
protected $primaryKey = 'id';
//預設值,其實也可以不用打
}
//檔案:routes/web.php
use App\Post;
Route::get('/find', function () {
$posts = Post::all();
foreach ($posts as $post) {
return $post->title;
}
});
瀏覽器輸入:public/find
呈現出所有文章的標題
//檔案:routes/web.php
use App\Post;
Route::get('/find', function () {
$post = Post::find(2);
return $post->title;
});
瀏覽器輸入:public/find
呈現出編號2的文章標題
//檔案:routes/web.php
use App\Post;
Route::get('/findwhere', function () {
$post = Post::where('id',2)->get();
//->orderBy('id','desc')->take(1)
return $post;
});
瀏覽器輸入:public/findwhere
呈現出編號2的文章物件
//檔案:routes/web.php
use App\Post;
Route::get('/findmore', function () {
$post = Post::findOrFail(1);
return $post;
});
瀏覽器輸入:public/findmore
呈現錯誤,因為編號一被我刪掉了
若不希望沒文章而出現空畫面時使用
//檔案:routes/web.php
use App\Post;
Route::get('/basicinsert', function () {
$post = new Post;
$post->title = '又有新的標題惹';
$post->content = '又有新的內容惹';
$post->save();
});
瀏覽器輸入:public/basicinsert
呈現空白,資料庫多一筆資料
//檔案:routes/web.php
use App\Post;
Route::get('/basicinsert2', function () {
$post = Post::find(2);
//static method
$post->title = '標題要被改掉囉';
$post->content = '內容要被改掉囉';
$post->save();
});
瀏覽器輸入:public/basicinsert2
呈現空白,資料庫編號二的資料標題與內容被改掉
<?php
//檔案:app/post.php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Post extends Model
//parents
{
protected $fillable = ['title','content'];
}
//檔案:routes/web.php
use App\Post;
Route::get('/create', function () {
Post::create(['title'=>'更更新的標題','content'=>'更更新的內容']);
});
瀏覽器輸入:public/create
呈現空白,資料庫新增一筆資料
//檔案:routes/web.php
use App\Post;
Route::get('/update', function () {
Post::where('id',2)->where('is_admin',0)->update(['title'=>'我來改標題囉','content'=>'我來改內容囉']);
});
瀏覽器輸入:public/update
呈現空白,資料庫編號二資料被改掉
//檔案:routes/web.php
use App\Post;
Route::get('/delete', function () {
$post=Post::find(2);
$post->delete();
});
瀏覽器輸入:public/delete
呈現空白,資料庫編號二資料被刪掉
//檔案:routes/web.php
use App\Post;
Route::get('/delete2', function () {
Post::destroy(3);
});
瀏覽器輸入:public/delete2
呈現空白,資料庫編號三資料被刪掉
//檔案:routes/web.php
use App\Post;
Route::get('/delete2', function () {
Post::destroy([4,5]);
// Post::where('is_admin',0)->delete();
});
瀏覽器輸入:public/delete2
呈現空白,資料庫編號4.5資料被刪掉
//檔案:app/post.php
protected $table ='posts';
多一層保障
//檔案:app/user.php
protected $hidden = [
'password', 'remember_token',
];
不讓user的密碼被洩漏
//下指令
php artisan tinker
//tinker
$post= new App\Post; //定義變數
$post->create(['user_id'=>'1','title'=>'test','content'=>'hello']); //增加資料
//註:app/post.php裡面,fillable的東西才可以寫入
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