Rails Style Flash Messages

[RossC0]

I think this is something that is going to be considered in version 1 or beyond.

However, if you can't wait heres an example of how you can easily achieve this.

Extending core classes

• BaseView - Get the Flash Class and automatically sets to Attribute for template

Flash Class

• Simple parameter holder, gets any flash messages from session in the constructor.

Usage

Before the View

• Either pass in the $rd and in the view write to a message - could be automated
• Add to the session i.e.:

  $storage->write('agavi.org.flash', array($message, $style));
  

View

  $this->flash->write($message, $style);

Master Template

<?php if ($t['flash']->hasFlash()): ?>
<?php $flash = $t['flash']->read();?>
<div class='flash <?php echo $flash['1']; ?>'><?php echo $flash['0']; ?></div>
<?php endif; ?>

Caveats

• Flash messages are destroyed as soon as the flash->read(); method is called.
• Flash messages will live in the session until flash->read() is called.
• Only allows a single flash message.
• Not integrated so mulitple interfaces i.e. add via the session before the view and via $this->flash in the view.

[RossC0]

Base View

[ross]

Updated - some bug fixes ensure request data is available

[anonymous]

Can we move initialize from BaseView? to BaseAction?? so it's possible to use $this->flash in Action and in View?

[SunboX]

some modification to Flash class:

/**

• Checks for flash messages of type $type *
• @return bool whether or not there is a flash messages of given type *
• @author André Fiedler
• @since 1.0 */

function hasFlashType($type) {

$flash = $this->getParameter('flash'); return @$flash[1] === $type;

}

/**

• Returns the Flash Messages Array *
• @return array an array of flash messages *
• @author Ross Lawley
• @since 0.11 */

function read() {

return $this->removeParameter('flash');

}

[ross]

Updated Class - made standalone - so session only based. Added hasFlashType - thanks André.

[benjamin@…]

Flash Message Class which can has different Message Types