Re: Comparable 2.xx to 3.xx functionality

Hey Dave,

1. Assuming you are in the UsersController and what to get the value of a single field of users with $id:

$tempKey =$this->Users->get($id, ['fields' => ['temp_key']])->tempKey;

While this is more verbose that 2.x was, I believe this is for the better.  You can quite easily implement a field method for your tables.

2. CakePHP 2.x is (Assuming UsersController):

$this->User->set($this->request->data);
if ($this->User->validates(array('fieldList' => array('email')))) {
}

CakePHP 3.x is (Assuming UsersController):

$userEntity = $this->Users->newEntity($this->request->data);
if ($this->Users->validate($userEntity, ['email'])) {
}

Or:

$validator = new \Cake\Validation\Validator();
$validator->add('email', ['rule' => 'email']);
$errors = $validator->errors($this->request->data);

Which, while more verbose, allows you to very easily create transient validation rules without needing to touch the ORM layer.

The Cake 3 ORM layer is far more complex than the old Cake 2.x model layer, however, this extra complexity makes it far more powerful. You can literally build any SQL statement you want without ever having to write a single line of SQL.

As for the switch to Square brackets, Cake 3 requires PHP 5.4, and [] is quicker to write than array(), so it makes sense.

And the namespacing and use's is a small price to pay for the benefits that namespaces provide.

Hope this clarifies things for you!

On Sunday, 21 September 2014 22:48:10 UTC+2, Dave Edwards wrote:

Thanks, I thought that this is where I may get some help over the new 'features' or ways of working in 3.xx, that I do not understand, and not told to go and read up on PHP - that's actually quite dismissive and patronising. What I actually need to understand is what you've done to Cake 3.xx. because I do not understand your new documentation - sorry for being so thick. I may be mistaken, but I thought that cake got it's name because using the framework was a 'piece of cake' i.e. simple to use - I'm afraid as a user of cake that this is no longer the case :(

I do understand 2.xx and its' documentation... not 3.xx

A a couple of examples, in 2.xx I could do this

$key = $this->User->field('temp_key')

now I have to do this

/* something else needs to go here, but I haven't worked it out yet  because I keep getting errors*/

$key = $users->find()->extract('temp_key')

another example is that I could do this

if ($this->User->validates(array('fieldList' => array('email'))))

{

}

now I have to do this

$users = TableRegistry::get('Users');

$user = $users->newEntity($this->request->data());

$valid = $users->validate($user, ['email']);

if ($valid) {

}

Is this progress?

With regards to square brackets, (now that I've looked it up), you could have simply said that in PHP 5.4 square brackets are a short syntax for array(), and whilst the old method will not be removed, we've decide to use them. I would have understood that - so I'm obviously not that thick.

If we were all programmers to your standard, we wouldn't need to use a framework, but a framework *should* remove the hard work...

Thanks for the reply.

Dave

On Sunday, 21 September 2014 21:03:00 UTC+1, José Lorenzo wrote:

I think to read a bit more of how php works, it will help you understand much better how to work with CakePHP. I don't know a good tutorial for learning PHP, though.
You can also google about the new features in the language since PHP 5.3, specially the changes in 5.4 since you look confused about the use of square brackets.

On Sunday, September 21, 2014 7:43:03 PM UTC+2, Dave Edwards wrote:

Thanks, but neither seem to work...

You suggested, $allTitles = $articles->find()->extract('title');

I tried $users->find()->extract('temp_key') but gives an error of 

Call to a member function find() on a non-object

You suggested $this->User->validates(array('fieldList' => array('email', 'password')))

I tried $this->User->validates(array('fieldList' => array('email'))) but gives an error of

Unknown method "validates"

I wouldn't have thought that the second solution would have worked anyway as 3.xx seems to have done away with the use of the word array in favour of square brackets. why I don't know?

In fact, I've just found an entry on validating in controllers in 'http://book.cakephp.org/3.0/en/orm/table-objects.html' why this isn't in 'http://book.cakephp.org/3.0/en/core-libraries/validation.html', I again don't know. This seems to be a common theme with the new docs, with a lot of useful information scattered across the docs in many different places and not always where you'd expect to find it!

Dave

On Sunday, 21 September 2014 13:29:55 UTC+1, Dr. Tarique Sani wrote:

There are several ways to achieve what you want and they are all in the docs. Quoting a few lines from the V3 Book

$allTitles = $articles->find()->extract('title'); //you can add a ->where() to this 

$this->User->validates(array('fieldList' => array('email', 'password')))

Yes your controller looks just about right and it is very easy to understand what to expect as I read further. 

HTH

T

On Sun, Sep 21, 2014 at 4:23 PM, Dave Edwards <goo...@bubbletoonz.com> wrote:

Hi,

I am trying to write an app in 3.xx using functionality that I have previously used in 2.xx but despite scouring the docs, I cannot find the answers. Apologies if they are in there, but there seems to be  5x the amount of documentation especially around the new ORM.

In 2.xx I could easily find the value of a single field e.g. $this->User->field('temp_key') Is there a 3.xx equivalent ?

In 2.xx I could validate a field in a model e.g. $this->User->validates(array('fieldList' => array('email'))) Is there a 3.xx equivalent ?

Lastly a general question. The top of my Users controller currently looks like this, and I've not yet finished it...

namespace App\Controller;

use App\Controller\AppController;

use Cake\Network\Exception\ForbiddenException;

use Cake\Event\Event;

use Cake\ORM\TableRegistry;

use Cake\Utility\Security;

use Cake\ORM\Entity;

class UsersController extends AppController {

Does this look right, compared to the simplicity of 2.xx this now looks very unwieldy and complicated?

Thanks for any replies.

Dave

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