Default variable value in blade Laravel - laravel

Question

How do I set a default value to a variable in a blade partial?
So for example I have 2 variables:
softDelete
delete
witch I want by default to be true.
#if($softDelete)
<span data-toggle="tooltip" title="Publish">
<a href="#delete-{{ $id }}" class="btn btn-default btn-xs btn-flat">
<i class="fa fa-check"></i>
</a>
</span>
#endif
#if($delete)
<span data-toggle="tooltip" title="Delete">
<a href="#delete-{{ $id }}" class="btn btn-danger btn-xs btn-delete btn-flat details" data-toggle="modal" data-target="#delete_modal">
<i class="fa fa-trash"></i>
</a>
</span>
#endif
And when I send the view from controller to change the value for some of the variables, depending the case I need.
return view('platform.pages.blocks.property_table_actions',
[
'id' => $model->id,
'delete' => false
]);
I tried with a provider:
public function composeActionButtons()
{
view()->composer('platform.pages.blocks.property_table_actions', function ($view) {
$view
->with('softDelete', true)
->with('delete', true)
->with('view', true)
->with('edit', true);
});
}
but override the false values from controller.

Answer 1

Sometimes you may wish to echo a variable, but you aren't sure if the variable has been set. Basically, you want to do this:
{{ isset($name) ? $name : 'Default' }}
However, instead of writing a ternary statement, Blade allows you to use the following convenient short-cut:
{{ $name or 'Default' }}
from the laravel docs..
it should check with isset if the variable exists.. if not a default value is shown

Answer 2

I think you're approaching this task in the wrong way - personally. But if you insist, you could also just include a partial (I do this sometimes). Say in a variable, etc.
For example, something like this:
// in your view
#include('some.directory.for.partials', ['softDelete' => 'false']) // you can change this to any value
// partial can then run something like this:
#if(count($softDelete) || $softDelete)
...
#else
...
#endif
That said, I think you could probably just assign the variable in your controller when you're rendering your view. You're assigning a variable anyways. Why make things complicated with a view composer - when that logic could be in your controller? Just set 'delete' => false to true or what have you for each.

Answer 3

I found the best method to be this:
<?php
namespace App\Providers;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\View;
use Illuminate\Support\ServiceProvider;
class ViewComposerServiceProvider extends ServiceProvider
{
/**
* Bootstrap the application services.
*
* #return void
*/
public function boot()
{
$this->composeActionButtons();
}
/**
* Register the application services.
*
* #return void
*/
public function register()
{
//
}
/**
* Compose the Recent sidebar
*/
public function composeActionButtons()
{
view()->creator('platform.pages.blocks.property_table_actions', function ($view) {
$view
->with('softDelete', true)
->with('delete', true)
->with('view', true)
->with('edit', true);
});
}
}
and in controller:
return view('platform.pages.blocks.property_table_actions',
[
'id' => $model->id,
])
->with(['edit' =>false, 'softDelete' => false]);
View creators work almost exactly like view composers; however, they are fired immediately when the view is instantiated.
The callback that I defined with the Creator is called immediately after view() , which is before any ->with()s. This enables me to set a default value for the View and then override it when the View is called, if desired.

Answer 4

In Controller.php
function __construct() {
$softDelete= true;
$data = array('softDelete' => $softDelete);
view()->share($data);
}