Yii2 routing when using CamelCase action names

Question

If you have say the following controller structure

Answer 1

You can make your own Basecontroller and overwrite createAction with a pattern allow uppercase like

preg_match('/^[a-zA-Z0-9\\-_]

 public function createAction($id)
{
    if ($id === '') {
        $id = $this->defaultAction;
    }

    $actionMap = $this->actions();
    if (isset($actionMap[$id])) {
        return Yii::createObject($actionMap[$id], [$id, $this]);
    } elseif (preg_match('/^[a-zA-Z0-9\\-_]+$/', $id) && strpos($id, '--') === false && trim($id, '-') === $id) {
        $methodName = 'action' . str_replace(' ', '', ucwords(implode(' ', explode('-', $id))));
        if (method_exists($this, $methodName)) {
            $method = new \ReflectionMethod($this, $methodName);
            if ($method->isPublic() && $method->getName() === $methodName) {
                return new InlineAction($id, $this, $methodName);
            }
        }
    }

    return null;
}

Answer 2

I was thrown a little about this change too, but eventually I found it makes the URL easier to read. I was unsure about having a case sensitive route in Yii1, in Yii2 I do not have this problem (or impression of a problem) anymore.

I am not sure about the exact reason, but I can tell you that for SEO it is better to have - separating words instead of having 1 big word.

When I rewrote an application in yii2, I put in the url manager all the old routes that i need to maintain.

        'urlManager' => [
            'class' => 'yii\web\UrlManager',
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => [
.................................................
                'site/registerInterest' => 'site/register-interest',
.................................................

            ],
        ],

So my old links work now just fine. You can also put a 301 redirect in .htaccess if you want from the old routes to the new ones to keep the SEO juice.