Laravel: URL in string

Question

I want to print a button in my Laravel (blade) views. I have made a function for creating this button, because of: if the user, who loads the view, doesn't have rights to see this button, the button won't show up (I haven't made this part yet). In every view where I need a button for something, I want to use this method. The return value of the method is:

<a href="{{ URL::to(scholen/toevoegen) }}"><button class="btn btn-primary">Nieuwe school</button></a>

There is just a problem: the method createButton() returns a string. So, {{ URL::to('scholen/toevoegen') }} doesn't work in blade.

Is there a solution for this? I don't want to type the url in my method, becuase of it has to be variable.

View

<?= Authorize::createButton('Nieuwe school', array('scholen', 'toevoegen'), null, 'btn btn-primary'); ?>

Helper Class

static function createButton($text = null, $route = null, $id = null, $class = null)
{

        $button = '<a href="{{ URL::to(<!URL!>) }}"><button class="<!CLASS!>"><!TEXT!></button></a>';

        if ($text != null) {
            $button = str_replace("<!TEXT!>", $text, $button);
        } 

        if ($route[0] != null && $route[1] != null) {
            $button = str_replace("<!URL!>", $route[0] .'/'. $route[1] . ($id != null ? '/'. $id : ''), $button);
        } 

        if ($class != null) {
            $button = str_replace("<!CLASS!>", $class, $button);
        }

        return $button;
}

Joel Hinz · Accepted Answer · 2014-12-12 11:17:18Z

I would suggest evaluated the route variables within the createButton() method, rather than in Blade - like this:

$button = '<a href="' . URL::to($someConstructedRoute) . '"><button class="<!CLASS!>"><!TEXT!></button></a>';

Now, all we need is to create the constructed route above that code.

However, I also think there's considerable room for improvement in your method with e.g. sprintf(). It also seems that the route should never actually be empty, because you always want a real link. Here's an example of how I might change it - but it's just a suggestion.

static function createButton($routeVars, $text = '', $id = null, $class = '')
{
    $route = implode('/', $routeVars);
    if ($id) $route .= '/' . $id;
    $url = URL::to($route);

    return sprintf('<a href="%s"><button class="%s">%s</button></a>', 
        $url, $class, $text
    );
}

By changing the nulls to empty strings, we can just include them as is. If there's no text provided, for instance, the button will look like <a href="somelink"><button class="someclass"></button></a> with no text.

Actually, I would probably extract the three route creation to a static method as well, but that might be a bit nitpicky.

Hope this helps. :)

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