Pro PHP and jQuery by Jason Lengstorf.pdf - Computer Science ...

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CHAPTER 10 ■ EXTENDING JQUERY
Performing Validation and Returning a Value
This step is nearly identical to one in the original function, except you access the pattern here through
the opts object:
(function($){
// Extends the jQuery object to validate date strings
$.validDate = function(date, options)
{
// Sets up default values for the method
var defaults = {
"pattern" : /^\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}$/
},
};
})(jQuery);
// Extends the defaults with user-supplied options
opts = $.extend(defaults, options);
// Returns true if a match is found, false otherwise
return date.match(opts.pattern)!=null;
Conforming to jQuery Plugin File Naming Conventions
To officially call a plugin a plugin, you must use the jQuery naming conventions for your plugin files. The
accepted format is jquery.[name of plugin].js—to meet this guideline, change the name of validdate.js
to jquery.validDate.js.
Modifying the Include Script
Now that the file name has changed, you need to update footer.inc.php to include it. Make the changes
shown in bold to load the correct file:
google.load("jquery", "1");