CODEWITHSUNDEEP
phplaravellaravel-blade
Moose
Moose

Reputation: 1241

Laravel Blade - User Allowed to Input Variable

I'm making an admin setting section of my laravel 5.2 app using the storage package from thetispro/laravel5-setting.

I'd like my admin users to be able to update email copy that get sent out to the user, but some of the emails include variables such as the users name. "Thanks for shopping with us, CUSTOMER NAME".

I can easily store the following in a setting, but when blade outputs it it just prints it out as a string instead of a variable. I've tried escaped and nonescaped the characters with {{}} and {{!! !!}. Here's what I have:

Email message an admin user can edit:

<h2>Hi, {{ $user->name }}</h2>
<p>Welcome to my web app</p>

In my view I have:

{!! Setting::get('emailuserinvite') !!}
<br /><br />
<!-- Testing both escaped and nonescaped versions -->
{{ Setting::get('emailuserinvite') }}

What blade renders is just:

echo "<h2>Hi, {{ $user->name }}</h2>
<p>Welcome to my web app</p>";

I was trying to make a custom blade directive that could close the echo, display the variable and open the echo back up, but that doesn't seem to be working correctly either.

// AppServiceProvider
Blade::directive('echobreak', function ($expression) {
  // echo "my string " . $var . " close string";
  $var = $expression;
  return "' . $var . '";
});

// Admin user settings
Hi @echobreak($user->name)
Welcome to my web app

Any advice would be appreciated! Thanks.

Update

I mocked up a simple test case using @abdou-tahiri's example but I'm still getting errors with the eval()'d code.

ErrorException in SettingController.php(26) : eval()'d code line 1:   Undefined variable: user

And here is my simple controller:

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;
use Blade;

class SettingController extends Controller
{

    public function index() {
        $user = [
            "fname" => "Sam",
            "lname" => "yerkes"];
        $str = '{{ $user }}';
        return $this->bladeCompile($str, $user);
    }

    private function bladeCompile($value, array $args = [])
    {
        $generated = \Blade::compileString($value);
        ob_start() and extract($args, EXTR_SKIP);
        try {
            eval('?>'.$generated);
        } 
        catch (\Exception $e) {
            ob_get_clean(); throw $e;
        }
        $content = ob_get_clean();
        return $content;
    }

}

Upvotes: 0

Views: 700

Answers (2)

Abdou Tahiri
Abdou Tahiri

Reputation: 4408

You may need to compile the string using Blade , check this helper function :

function blade_compile($value, array $args = array())
{
    $generated = \Blade::compileString($value);

    ob_start() and extract($args, EXTR_SKIP);

    // We'll include the view contents for parsing within a catcher
    // so we can avoid any WSOD errors. If an exception occurs we
    // will throw it out to the exception handler.
    try
    {
        eval('?>'.$generated);
    }

    // If we caught an exception, we'll silently flush the output
    // buffer so that no partially rendered views get thrown out
    // to the client and confuse the user with junk.
    catch (\Exception $e)
    {
        ob_get_clean(); throw $e;
    }

    $content = ob_get_clean();

    return $content;
}

so in your view file :

{!! blade_compile(Setting::get('emailuserinvite'),compact('user')) !!}

Check this Is there any way to compile a blade template from a string?

Upvotes: 0

GaurabDahal
GaurabDahal

Reputation: 876

<h2>Hi, $user->name</h2>
<p>Welcome to my web app</p>

Is this what you are trying to do?

<h2>Hi, {{$user->name}}</h2>
<p>Welcome to my web app</p>

Upvotes: 0

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