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Jumi is the set of extensions (or add-ons) for Joomla!An extension is used to add capabilities to Joomla! that do not exist in the base core code. There are thousands of them. You can find more examples over at our ever growing Joomla! Extensions Directory. Prepare to be amazed at the amount of exciting work produced by our active developer community!
There are five types of Joomla! extensions:
Jumi comes as the component and the language (only for Joomla 1.5), the plugin and the module extensions for Joomla!
Components - general info:
A Component is the largest and most complex of the Extension types. Components are like mini-applications that render the main body of the page. An analogy that might make the relationship easier to understand would be that Joomla! is a book and all the Components are chapters in the book. The core Article Component (com_content), for example, is the mini-application that handles all core Article rendering just as the core registration Component (com_user) is the mini-application that handles User registration.
A Component will manage data, set displays, provide functions, and in general can perform any operation that does not fall under the general functions of the core code.
Components work hand in hand with Modules and Plugins to provide a rich variety of content display and functionality aside from the standard Article and content display. They make it possible to completely transform Joomla! and greatly expand its capabilities.
Modules - general info:
A Module is more lightweight and flexible Extension used for page rendering then a component. Modules are used for small bits of the page that are generally less complex and able to be seen across different Components. To continue in our book analogy, a Module can be looked at as a footnote or header block, or perhaps an image/caption block that can be rendered on a particular page. Obviously you can have a footnote on any page but not all pages will have them. Footnotes also might appear regardless of which chapter you are reading. Similarly Modules can be rendered regardless of which Component you have loaded.
Modules are like little mini-applets that can be placed anywhere on your site. They work in conjunction with Components in some cases and in others are complete stand alone snippets of code used to display some data from the database such as Articles (Newsflash) Modules are usually used to output data but they can also be interactive form items to input data for example the Login Module or Polls.
Modules can be assigned to Module positions which are defined in your Template and in the back-end while editing the Module Position settings. For example, "left" and "right" are common for a 3 column layout.
Each Module is assigned to a Module position on your site. If you wish it to display in two different locations you must copy the Module and assign the copy to display at the new location. You can also set which Menu Items (and thus pages) a Module will display on, you can select all Menu Items or you can pick and choose by holding down the control key and selecting multiple locations one by one in the Modules [Edit] screen.
Plugins - general info:
One of the more advanced Extensions for Joomla! is the Plugin. In previous versions of Joomla! (i.e. before 1.5 version) plugins were known as "mambots". Aside from changing their name their functionality has been expanded. A Plugin is a section of code that runs when a pre-defined event happens within Joomla!. Using a Plugin allows a developer to change the way their code behaves depending upon which plugins are installed to react to an event.
There are several types of plugins in Joomla! there. E.g. editors, authentication, content plugins etc. They differs in usage and behavior.
Jumi plugin belongs to the family of the so called content plugins. That means it includes custom codes into the Joomla! articles only.
Content plugins alter the appearance of Joomla! articles. They can include something into an article, change certain words, assign html classes used in the article, etc., etc.
Languages - general info:
New to Joomla! 1.5 and perhaps the most basic and critical Extension is a Language. Joomla! is released with multiple Installation Languages but the base Site and Administrator are packaged in just the one Language en-GB - being English with GB spelling for example. To include all the translations currently available would bloat the core package and make it unmanageable for uploading purposes. The Language files enable all the User interfaces both Front-end and Back-end to be presented in the local preferred language. Note these packs do not have any impact on the actual content such as Articles.
Jumi is a tool tooSome modules (e.g. newsflash, mainmenu, whosonline, etc.) and plugins (e.g. vote, pagebreak, etc.) provides output immediately after they are publish. Jumi is different. Jumi is a tool.
A tool itself provides nothing. It's empty. Like CMS Joomla! without any content. You have to give Jumi some material that can be processed and presented to users. The material for Jumi are cutom codes.
Jumi takes some source, written or stored, and injects it into Joomla!
Simple and powerful.
Jumi - component, plugin and module tools
Jumi extension output depends on the source included.
Jumi component output is into its own page.
Jumi module output is into a module position.
Jumi plugin output is into a defined position in an article.
When choosing Jumi for extending Joomla! capabilities answer these two questions:
- WHAT should be seen?
- WHERE the effect will be seen?
- The WHAT question is about a source to be included.
- The WHERE question is about the type of the Jumi extension: Jumi module, Jumi plugin or Jumi component.
- What can be done with Jumi?
Known Jumi solutions covers these applications:
- third party advertising banners (Google AdSence, Amazon, AdBrite, ...)
- own adverts
- forms (contacts, orders, survey, polls, ...)
Jumi - Jack of all the trades?No! Jumi has its limitations. Sorry.
The most serious follows:
Jumi can include only files that resides on your server.
Jumi is not responsible for selfconsistent output of the included file.
Jumi plugin has memory limitations.
- Other Extensions
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