Re: Confusion with $this->data and $this->alias as used in this function...

$this->alias is the name of the model. If your model is User, then you
must do that on $data to get the correct value.

$data['User']['password'] is equivalent to:
$data[$this->alias][$password_field] which is the better approach
because its dynamic.

On Sep 23, 4:59 pm, John L <confidentia...@gmail.com> wrote:
> Hello,
>
> I'm following this tutorial on the Auth component:http://bit.ly/aNWz3J
>
> I'm confused about three things and I can't figure it out on my own (trust
> me I tried).
>
> Class User extends AppModel {
>
> // ......
>
> function password_match($data, $password_field, $hashed=true) {
>     $password = $this->data[$this->alias][$password_field];
>     $keys = array_keys($data);
>     $password_confirm = $hashed ?
>     Security::hash($data[$keys[0]], null, true) :
>     $data[$keys[0]];
>     return $password === $password_confirm
>
> }
> }
>
> *Confusion #1: $data*
> It's my understanding that $data is a property of class Controller and it
> contains data which has been posted to the controller user HtmlHelper and
> that data here is accessible using the $this->data['ModelName']['fieldName']
> format.
>
> So why is it many times (in parameter list and in function body) that it's
> put out there simply as "$data"?
>
> *Confusion #2: $this->alias*
> What is $this->alias
>
> *Confusion #3: Where is the matching?*
> I don't see any matching.
>
> Hope you guys can help. Thank you so much.
>
> Jon Lyles

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