Codeigniter MY_Model class

Question

I'm trying to write my own MY_Model base class but I'm facing a weird problem:

/core/MY_Model.php

 function __construct() { if ( !empty($this->table)) { // query db, etc. } else { // even though that I set $this->table value // in the child class, I always ended up here // it's always empty!!!! log_message('error', 'some error message'); } // ... } }

/models/test_model.php

 function __construct() { parent::__construct(); } // ... }

even though that I set $this->table value in the child class, I always ended up finding $table value empty in MY_Model class, it's always empty!!!! any hint please?!

As far as I see you try to override property $table, right? I'm asking just to make clear if I understand your question well. — Leri
– Leri, Commented Jun 4, 2012 at 13:06
PLB: Not exactly, I'm trying to pass table name to the parent class to make it query database for some results. I thought redefining $table property in child class will do that. But it's not updating parent class $table property. If do a var_dump() in parent constructor $table property is still empty. thank u. — Steph
– Steph, Commented Jun 4, 2012 at 13:09
That's weird, I do the exact same thing in my MY_Model but $table is set as it should in the parent class... — nebulousGirl
– nebulousGirl, Commented Jun 4, 2012 at 13:12
@Stephanie strange. I've even tested your script, because it should be working and it really does what you expect. — Leri
– Leri, Commented Jun 4, 2012 at 13:14

Laurence · Accepted Answer · 2012-06-04 16:18:41Z

Unless you need something specific/special - you should just use Jamie Rumbelows "MY_Model" - it will probably be better than anything you could write (or me) - and allows you to focus writing other code. No need to re-invent the wheel.

You can get the code from GitHub here

And here is an awesome tutorial that shows you how to use the MY_Model in your application.

Honestly - give it a go - you wont regret it.

WebNovice · Accepted Answer · 2012-07-09 16:28:23Z

In your model constructor, do this:

class Test_model extends MY_Model{ public function __construct() { parent::__construct(); $this->table = 'test_model'; } //... }

Kao · Accepted Answer · 2012-09-26 07:33:35Z

You shouldn't try to override the $table variable in the child class. What you're doing is:

CI_MODEL contains:
- protected $table, of own scope.
MY_Model contains:
- protected $table, of own scope. This overrides the inherited variable $table.

When you override it in the child class, it won't bubble up to the parent class, cause the $table will become a part of the child class only.

What you need to do is remove the declaration of the $table variable in the child:

/models/test_model.php <?php class Test_model extends MY_Model { function __construct() { parent::__construct(); $this->table = 'test_models'; } // ... }

Collectives™ on Stack Overflow

Codeigniter MY_Model class

3 Answers 3

Comments

Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Related