If you want to understand what's in your Zend_Search_Lucene index files, then download Luke (http://www.getopt.org/luke/) and point it at the directory containing your index files.
This is screenshot of my test index:
Wow!
What a very useful tool!
This is how it works:
views/helpers/MyHelper.php contains class Zend_View_Helper_MyHelper which has a function called myHelper()
Also, if you add a function called setView() to your class, then the View will pass you an instance of itself before it calls your view helper function.
i.e.
Class Zend_View_Helper_MyHelper { protected $_view; public function setView($view) { $this->_view = $view; } public function myHelper($myVar) { return $this->_view->escape($myVar); } }
Just a heads-up. Tomorrow, this site is being moved to a new server and so is going to be down for most of tomorrow from around 10:00 (GMT) to late evening.
The basic usage of Zend_Filter_Input is:
$filters = array('body' => array('StringTrim' , 'StripTags')); $validators = array('body' => 'Alpha'); $input = new Zend_Filter_Input($filters, $validators, $_POST); if ($input->isValid()) { // do something with form } else { // failed validation $messages = $input->getMessages(); // iterate though $messages to display to user }
The problem is that the message you get out isn't always written as you would like. Consider the output if the body record is empty. A dump() of $messages gives this:
array(1) {
["body"] => array(1) {
[0] => string(21) "" is an empty string"
}
}
The text isn't exactly what I would want to display to a user. To change it you pass in a messages parameter to the $validators array:
$filters = array('body' => array('StringTrim' , 'StripTags')); $validators = array( 'body' => array('Alpha', 'messages'=>array(Zend_Validate_Alpha::STRING_EMPTY=>'The body is empty!'))); $input = new Zend_Filter_Input($filters, $validators, $_POST);
This works as expected. The problem now is that you need to know the "magic constants", so here is a list of all the constants and the associated default message:
Finally, you can also change the generic "not empty" and "missing" messages in Zend_Filter_Input using:
$options = array( 'notEmptyMessage' => "A non-empty value is required for field '%field%'", 'missingMessage' => "Field '%field%' is required" ); $filters = array('body' => array('StringTrim' , 'StripTags')); $validators = array('body' => 'Alpha'); $input = new Zend_Filter_Input($filters, $validators, $_POST); $input->setOptions($options);
Now you can fix those messages to say something useful and your users will thank you for it!
Now that it's been announced by Manning, I think I can talk a little more about the project that's been taking up most of my spare time!
Zend Framework in Action is a collaboration between myself and Nick Lo. We are still writing, but Chapter 1 is available for you to download and see where we are heading with the book. Manning has an early access program where you can get access to pre-production PDFs of each chapter if you can't wait. As a bonus for signing up early, you get to tell us what's wrong (and what's right!) before the prose is committed to the printed page so we can fix it and you'll get a better final book.
In order to set expectations, I should probably point out that Zend Framework in Action is a tutorial book intended to show how to use the components of the framework together within "real world" projects. Each component is dealt with in a "what is it?", "why use it?", "how do you use it?", "let's use it in the real world" manner. It's not an advanced exposition of each component as that would take many books!
So far, I've learnt that writing a book is considerably different (and much harder!) than writing a tutorial. Having help from the excellent people at Manning has eased the transition from writing when I feel like it to sitting down and writing daily. I still need to work out how to write good quality prose at a decent pace though!
This is getting a lot of blog-sphere time at the moment. What an excellent idea!
(Via The Guardian, who found it on TechCrunch)
I've finally updated the source code to my Zend Framework tutorial so that the hidden field in the form is named "id" rather than "ID". A minor error that meant that editing didn't work! This is because in PHP $_POST['id'] is not the same as $_POST['ID']!
Whilst I was poking around the source code, I also changed the Zend Auth tutorial to use $db rather than $dbAdapter so that it is consistent with the first tutorial. I've updated the PDF to reflect this too.
I've also updated the Zip files for both tutorials too.
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