Level 53
@vlauciani Inheritance or trait.
Mar 7, 2015
6
Level 1
Using one "Accessor" in more then one Model
Hi all
I need to execute a simple PHP 'round' function on Latitude and Longitude attributes that are stored in differente MySQL tables.
Now I've two methods:
class Restaurant extends Model {
public function getLonAttribute($value)
{
return round($value, 3);
}
public function getLatAttribute($value)
{
return round($value, 3);
}
}
and
class Bar extends Model {
public function getLonAttribute($value)
{
return round($value, 3);
}
public function getLatAttribute($value)
{
return round($value, 3);
}
}
I don't want to repeat these functions for each Model where I need to 'round' the Latitude and Longitude; what is the best practice to write It one time and inherited these functions into the Models?
Level 1
I'd put them in a trait.
trait HasLocationAttributes {
public function getLonAttribute($value)
{
return round($value, 3);
}
public function getLatAttribute($value)
{
return round($value, 3);
}
}
class Restaurant extends Model {
use HasLocationAttributes;
}
class Bar extends Model {
use HasLocationAttributes;
}
1 like
Level 1
Thank you @sebdd But, where I can find a guide/example for "trait"? I've never used it and I don't know If I need create (and where) a file for "trait" functions; is this a new Model file? Thank you again.
Level 53
@vlauciani In the source mate http://php.net/manual/pl/language.oop5.traits.php
Laravel5 uses them a lot, so just check the codebase.
Level 1
Thank you @JarekTkaczyk for the link.
The concept is clear, but I need to understand how to implements in Laravel5. The "trait" code should be written into which folder? how I can the file?
Thank you.
Level 14
Hi @vlauciani if you are using any Domain Layer composed of some folders, you could make a Core folder to put some of those traits, interfaces or classes that you may reuse.
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