Learning Joomla! 1.5 Extension Development: Creating - download pdf or read online

By Joseph L. LeBlanc

A functional instructional for developing your first Joomla! 1.5 extensions with personal home page

In aspect

Joomla! is the world's most popular open-source content material administration process, and the winner of the 2006 Open resource CMS Prize.

While Joomla! is choked with good points, its maximum caliber is that this can be very extensible, permitting any variety of complicated functions to be cleanly built-in. purchasing carts, boards, social networking profiles, activity forums, and genuine property listings are all examples of extensions builders have written for Joomla!. All of those can run off one Joomla! web site, whereas just one database, template, and middle have to be maintained. should you construct an extension to Joomla!, it is going to inherit the feel and appear of the final web site. Any form of software that may be coded in Hypertext Preprocessor is a possible part ready to be written!

If you are wanting to commence developing extensions for Joomla!, this ebook is for you. stroll in the course of the improvement of entire Joomla! elements and modules with this educational for Hypertext Preprocessor programmers. Written for Joomla! model 1.5 and validated opposed to pre-final releases, this ebook gets you all started coding your first extensions as speedy as attainable, and provides the positive aspects that may make your paintings glance professional!

The publication builds instance extensions to create, locate, advertise, and cross-link eating place reports. an element will deal with universal info goods noticeable throughout all studies resembling funds, reservations, delicacies kind, and site. Your viewers can be in a position to seek and kind in the course of the studies; including their very own standards to 0 in on their eating thoughts for the evening.

Your modules will spotlight new reports, drawing the eye of widespread viewers. eventually, plugins will pull items of the experiences into characteristic articles and others will combine them into searches. whether you do not personal a restaurant, you'll nonetheless locate the code appropriate on your personal improvement tasks, and the abilities you advance will make you a Joomla! developer to be reckoned with!

What you'll study from this e-book?

  • Code Joomla! elements, modules, and plugins from the floor up
  • Create toolbars, checklist displays, and menu goods
  • keep a constant glance and decrease repetitive code utilizing HTML features
  • Automate database list administration
  • Validate enter and withstand hack makes an attempt
  • Configure your modules via XML parameters
  • package deal and distribute your extensions

Approach

A useful educational, established round the improvement of coherent instance during the ebook. each one bankruptcy walks you thru the stairs so as to add a required function to the extension.

Who this ebook is written for?

This booklet is acceptable for personal home page programmers who are looking to take their first step in customizing and increasing the beneficial properties of Joomla! via customized personal home page improvement. it's not a reference consultant for complicated Joomla! developers.

You want merely the fundamentals of personal home page programming; no adventure of constructing Joomla! extensions is thought. you're anticipated to be conversant in the overall operation of Joomla!

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Additional resources for Learning Joomla! 1.5 Extension Development: Creating Modules, Components, and Plugins with PHP

Sample text

After binding, we can manipulate the member variables of $row directly. Since the quicktake and review fields accept HTML content, they need special handling as the bind() function automatically strips out HTML. To get around this, we use the getVar() member function of JRequest, passing in the form variable name, the default value, the request array we wish to pull from, the expected format, and the JREQUEST_ALLOWRAW flag respectively. In addition to recaputring the HTML data, we are also able to add default data or some other automatically generated data after binding.

The bind() function takes an associative array as the parameter and attempts to match all of the elements to member variables of the object. To reduce the risk of SQL [ 34 ] Chapter 3 injection attacks, we call JRequest::get() to sanitize the values from $_POST. This process escapes characters that could be used to control the SQL query. If bind() fails for some reason, we display this as a JavaScript alert and take the user back to the previous screen. After binding, we can manipulate the member variables of $row directly.

Determines that the page request is intended for the reviews component, it will call BuildParseRoute() and pass in an array of the relevant URL segments. These segments are ordered the same way we set them in ReviewsBuildRoute(). We initialize an array $vars to hold the variables we return. Then we set the task and id elements of this array to the first and second elements of $segments respectively. Finally, we return the array, which Joomla! in turn sets as request variables. This way, the entire routing process is transparent to the rest of the code: all of the request variables you would normally expect to be present under a conventional script call will be there.

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