How to delete the first row - laravel

Question

I have some trouble with Laravel SQL builder. I want to delete the first row. I am using the below code:
DB::table('ahah')->first()->delete().
In the controller, I've already imported DB class using the statement use Illuminate\Support\Facades\DB. Can you tell me what's the problem and how to fix it?

Answer 1

It doesn't work because DB::table('ahah')->first() is returning a stdClass object. And of course, stdClass has no delete() method.
So you will need to get the first item of your table with SQL statements:
// Supposing your primary key column is called 'id'
DB::table('ahah')
->orderBy('id')
->limit(1)
->delete();

Answer 2

If are working in Laravel then it's better to use Eloquent ORM by creating Model.
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class User extends Model
{
// Code Stuff
}
fetch the first records and delete
$user = \App\Models\User::orderBy('id')->first()->delete();

Answer 3

ModelName: Change with your model
$item = ModelName::orderBy('id', 'ASC')->first();
$item->delete();

Answer 4

Use the oldest method for getting the first record:
$ahah_first = \DB::table('ahah')->oldest()->first();
\DB::table('ahah')->where('id', $ahah_first->id)->delete();

Answer 5

As others answered, your requirement should be fulfilled as you described in your question.
I'm just adding a cleaner technique to delete the FIRST row of the table. Create the model (made using Eloquent), then add a scope method which will return the first row of the table and then you just need to call delete() on the query builder.
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
class FooBarModel extends Model
{
protected $table = 'foo_bar';
/**
* Scope a query to retrieve first row.
*
* #param \Illuminate\Database\Eloquent\Builder $query
* #return \Illuminate\Database\Eloquent\Builder
*/
public function scopeFirstRow($query)
{
return $query->orderBy('id')->first(); // Assuming id is the name of primary key column in the table
}
}
Then you may delete the first row as:
FooBarModel::firstRow()->delete(); // This will delete the very first available row every time it is called
However, handling the exceptions is always a good practice. Here if no row exists in the table, then calling the above statement will raise an exception as the query builder object will return null. So better first check if the result is not null then only call delete() method.
$firstRow = FooBarModel::firstRow();
if (!is_null($firstRow)) {
$firstRow->delete();
}
Similarly, you can create other scopes as well to delete the last row, last to the last row, etc.
If you want to go for a more cleaner way than this then you can just write a method in the Model itself and write all code to delete there.
/**
* #return bool
*/
public static function deleteFirstRow()
{
$firstRow = self::firstRow();
if (!is_null($firstRow)) {
$firstRow->delete();
return true;
}
return false;
}
Then call deleteFirstRow() to delete first row.
FooBarModel::deleteFirstRow();
Hope this helps.