Loading a model inside a model

Loading a model inside a model - Printable Version

+- CodeIgniter Forums (https://forum.codeigniter.com)
+-- Forum: Archived Discussions (https://forum.codeigniter.com/forumdisplay.php?fid=20)
+--- Forum: Archived Development & Programming (https://forum.codeigniter.com/forumdisplay.php?fid=23)
+--- Thread: Loading a model inside a model (/showthread.php?tid=12435)

Loading a model inside a model - El Forum - 10-19-2008

[eluser]robmcm[/eluser]
Hi,

I would like to have a model, that loads in various different models.

For example if you had a car model, it would load in the engine model, wheel model, interior model etc etc

The problem I have is codeigniter doesn't seem to allow me to load a model inside a model.

So when inside my car model, if I do the following:

Code:
$this->load->model('Engine_model', '', TRUE);

$this->engine = $this->Engine_model->load_from_id( $this->engineIdFk );

I get this error:

Code:
A PHP Error was encountered

Severity: Notice

Message: Undefined property: Car_model::$Engine_model

Filename: models/car_model.php

Line Number: 123

Is there a different way to load a model, or should my Car_model not really be a model, or at lease extend the codeigniter Model class?

Thanks

Rob

Loading a model inside a model - El Forum - 10-19-2008

[eluser]Mike Ryan[/eluser]
Hi Rob,

You need to call the engine model via the CI instance:

Code:
$CI =& get_instance();

$CI->load->library('Engine_model');

$this->engine = $CI->Engine_model->load_from_id( $this->engineIdFk );

Loading a model inside a model - El Forum - 10-19-2008

[eluser]robmcm[/eluser]
Thanks Mike!

I had just found this:

http://ellislab.com/forums/viewthread/49625/#240711

Someone there posted the same solution, seems to work Smile

Thanks

Rob