文件名称：Learning Joomla! 1.5 Extension Development Creating Modules, Components, and Plugins with PHP
文件大小：3.4MB
文件格式：PDF
更新时间：2011-08-22 16:04:40
joomla Component module plugin
Joomla! is an award-winning content management system with a powerful extension
system. This makes it easy for third-party developers to build code extending
Joomla\'s core functionality without hacking or modifying the core code.
Once an extension is developed, it can be packaged into a ZIP fle for site
administrators to upload and use. The people who manage Joomla!-based websites
and want to use extensions need not know any programming at all. Once the ZIP fle
is uploaded, the extension is installed.
The name Joomla! comes from the Swahili word \'jumla\', meaning \"all together\" or \"as
a whole\". When you install an extension in Joomla!, it blends in with the rest of the
site; all the extensions truly appear \"all together, as a whole\".
What This Book Covers
Chapter 1 gives an overview of how Joomla! works. The example project
used throughout the book is also introduced. The three types of extensions
(components, modules, and plug-ins) are covered along with descriptions of how
they work together.
Chapter 2 begins the development of the component used in the project. Initial entries
are made in the database and toolbars for the back end are built. The general fle
structure of Joomla! is also introduced.
Chapter 3 walks through the creation of the back-end interface for creating,
editing, and deleting records in the project. Database table classes are introduced,
as well as common HTML elements used to make the project blend in with other
Joomla! extensions.
Chapter 4 builds a front-end interface for listing and viewing records. Additionally,
code to generate and interpret search-engine-friendly links is covered. The project is
also expanded slightly when a commenting feature is added.
Chapter 5 introduces a module used to list records on every page of the site. The
module takes advantage of layouts, where the same data can be formatted differently
depending on how the code is called. Some of the code is also separated out into a
helper class so that the main code generating the module stays simple.
Chapter 6 rewrites the component developed in Chapters 2, 3, and 4 so that it follows
the Model, View, Controller design pattern. Controls over the publishing of records
are introduced, in addition to an interface for removing offensive comments. More
toolbars are added and the search-engine-friendly URL code is redesigned.
Chapter 7 develops three plug-ins. The frst plug-in fnds the names of records in
the database and turns them in to links to those records. A second plug-in displays
a short summary of the record when certain code is added to content articles.
Finally, another plug-in is designed so that records are pulled up along with Joomla!
content searches.
Chapter 8 adds confguration parameters to the component, module, and plug-ins.
These are handled through XML and generate a predictable interface in the back
end for setting options. Retrieving the values of these parameters is standardized
through built-in functions.
Chapter 9 expands the XML fles used for parameters and adds a listing of all the
fles in each extension. Once this fle is compressed along with the rest of the code
into a ZIP archive, it is ready to be installed on another copy of Joomla! without any
programmer intervention. Custom installation scripts and SQL code are also added
to the component.