Why the $this->find( $id ) is generating error but get()->getRow() is working?

Why the $this->find( $id ) is generating error but get()->getRow() is working? - Printable Version

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+--- Thread: Why the $this->find( $id ) is generating error but get()->getRow() is working? (/showthread.php?tid=75387)

Why the $this->find( $id ) is generating error but get()->getRow() is working? - webdevron - 01-31-2020

In my model, I am trying to get an item by its ID. My code is given bellow:

PHP Code:
// namespace App\Models;
// use CodeIgniter\Model;

public function getItemByID( $cid ){
    return $this->find($cid);
} 

The above code generating the following error:

Code:
TypeError

Argument 1 passed to CodeIgniter\Database\BaseResult::getFirstRow() must be of the type string, null given, called in C:\Users\RON\OneDrive\Dev\oneb\core\Model.php on line 375

But the following code is working fine:

PHP Code:
public function getItemByID( $cid ){
    return $this->where([$this->primaryKey => $cid])->get()->getRow();
} 

What is the reason behind this?

Thanks in advance.

RE: Why the $this->find( $id ) is generating error but get()->getRow() is working? - zahhar - 02-01-2020

Check if column that stores primary key in your table is named "id" and indexed as primary key. Otherwise (e.g. name is "some_id") you should define it in your model:

<?php namespace App\Models;
use CodeIgniter\Model;
class UserModel extends Model
{
protected $table = 'users';
protected $primaryKey = 'some_id';
?>

RE: Why the $this->find( $id ) is generating error but get()->getRow() is working? - guilherme - 02-02-2020

My model is also showing this problem in the find method. It seems that he is not able to identify the return type, using entities or just defining array / object, the method does not run

RE: Why the $this->find( $id ) is generating error but get()->getRow() is working? - guilherme - 02-02-2020

I was using the constructor in the model. This caused a break in the initialization of the model's default settings.

RE: Why the $this->find( $id ) is generating error but get()->getRow() is working? - antonftn - 03-01-2021

(02-02-2020, 01:05 PM)guilherme Wrote: I was using the constructor in the model. This caused a break in the initialization of the model's default settings.

Thank you!!!!
I spent couple hours trying to figure it out Big Grin

RE: Why the $this->find( $id ) is generating error but get()->getRow() is working? - zenarter - 01-04-2022

I know this might be too late. But you can just add parent::construct() at your model's constructor pap

RE: Why the $this->find( $id ) is generating error but get()->getRow() is working? - kidando - 06-27-2022

(01-04-2022, 10:44 AM)zenarter Wrote: I know this might be too late. But you can just add parent::construct() at your model's constructor pap

Never too late. I was about to just forget about the constructor all together. Thanks