How can handle Messages??

San · #1 (**permalink**) 02-07-2007, 12:40 PM

Hi all,
How u were handling success/failure/error like messages in ZF projects
Thanks
San.

nargo · #2 (**permalink**) 02-08-2007, 12:34 PM

I am not quite sure i fully understand what you want to find out.

Anyway, I think best approach is by using try-catch mechanism from PHP5.

potatobob · #3 (**permalink**) 02-10-2007, 07:21 PM

In general if I was using the mvc method, I would throw exceptions and catch them in a higher level in the application. If an exception is not caught then have the controller save it, so we can check for uncaught exceptions later and give our own error message to the user. It is also a good to store uncaught exceptions to a logger for analysis.

As for errors, I have a custom error handler which saves all errors to a buffer object until after execution of dispatch process has finished. The error system is too complicated for me to explain right now, but this way we can handle problems more efficiently.

frosty1 · #4 (**permalink**) 05-14-2007, 11:34 PM

i use this very simple helper to handle my errors. it saves the errors to a session so you dont have to worry about redirects clearing the error.

PHP Code:


			
<?php

class libErrors

{

    private $ns;

    private $errors;

    

    function __construct()

    {

        $this->ns = new Zend_Session_Namespace('errors'); 

        $this->errors = $this->ns->errors;   

    }

    

    function clear()

    {

        unset($this->errors);

        $this->updateNs();

    }

    

    function add($error)

    {

        $this->errors[] = $error;

        $this->updateNs();

    }

    

    function hasErrors()

    {

        if(count($this->errors) > 0){

            return true;

        }

    }

    

    function get()

    {

        return $this->errors;

    }

    

    private function updateNs()

    {

        $this->ns->errors = $this->errors;

    }

}

i then use this view helper, renderAlert (which handles both errors and messages to the user)

PHP Code:


			
    public function RenderAlert(){

        $m = new libMessage();

        $e = new libErrors();

        $alert = false;

        $view = Zend_Registry::get('view');

        

        if($m->hasMessage() || $e->hasErrors()){

            if($m->hasMessage()){

                $message = "<p>" . $m->get() . "</p>";

            }

            

            if($e->hasErrors()){

                $error = "<p>The following errors have occurred:</p>" . $view->HtmlList($e->get());

            }

            $alert = "<div class='message_box'>" . $message . $error . "</div>";

        }

        

        //after this renders it clears the errors and messages

        $m->clear();

        $e->clear();

        

        return $alert;

    }

Dead_Thinker · #5 (**permalink**) 05-29-2007, 05:10 PM

Quote:

Originally Posted by frosty1

i use this very simple helper to handle my errors. it saves the errors to a session so you dont have to worry about redirects clearing the error.

PHP Code:


			
<?php

class libErrors

{

    private $ns;

    private $errors;

    

    function __construct()

    {

        $this->ns = new Zend_Session_Namespace('errors'); 

        $this->errors = $this->ns->errors;   

    }

    

    function clear()

    {

        unset($this->errors);

        $this->updateNs();

    }

    

    function add($error)

    {

        $this->errors[] = $error;

        $this->updateNs();

    }

    

    function hasErrors()

    {

        if(count($this->errors) > 0){

            return true;

        }

    }

    

    function get()

    {

        return $this->errors;

    }

    

    private function updateNs()

    {

        $this->ns->errors = $this->errors;

    }

}

i then use this view helper, renderAlert (which handles both errors and messages to the user)

PHP Code:


			
    public function RenderAlert(){

        $m = new libMessage();

        $e = new libErrors();

        $alert = false;

        $view = Zend_Registry::get('view');

        

        if($m->hasMessage() || $e->hasErrors()){

            if($m->hasMessage()){

                $message = "<p>" . $m->get() . "</p>";

            }

            

            if($e->hasErrors()){

                $error = "<p>The following errors have occurred:</p>" . $view->HtmlList($e->get());

            }

            $alert = "<div class='message_box'>" . $message . $error . "</div>";

        }

        

        //after this renders it clears the errors and messages

        $m->clear();

        $e->clear();

        

        return $alert;

    }

I think that's very interesting, i have made something like this. I have a utility class, and one of its methotds is a message method who puts a class (for icon), title and message on session, and i have a "session" on my header who show the message, another way to show the message is using javascript, a few effects with Script.aculo.us made it a lot more pretty

People here thinks thats cool. And we are making the second system with that.

Sorry for my english.
P.S.: I love to have found that forum.
Hugs.

priji · #6 (**permalink**) 01-04-2008, 05:16 AM

Thank you very much

Leif.Högberg · #7 (**permalink**) 01-08-2008, 10:35 AM

You might also want to take a look at the action helper flashMessenger.
Although it doesn't come with a view helper to match one can be easily written and together they would accomplish more or less the same thing as the suggestions above.

Note: Just to make it clear. You would need to manualy feed the flashMessenger with the errors you'd want to display to the user.

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