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Delta4x4 created an off-road capable Tesla Model 3 built to drive through the wilderness in Norway. The upgrades include new all-terrain tires, new wheels, and a body lift kit. The lift kit costs around $568, while the new 18-inch wheels and tires are about $1,775, although the latter price jumps to $2,958 with Klassic B wheels. Visit Business Insider's homepage for more stories. Germany-based Delta4x4 has created an off-road capable Tesla Model 3 built to traverse the wilderness in Norway. The company was founded in Bavaria, Germany in 1980 by Josef Loder, the son of a Ford dealer, and two of his...
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European banks are set to face credit losses of as much as 800 billion euros ($947 billion) in the next three years in a worst-case scenario, according to an Oliver Wyman report. In case the region is not hit by a second COVID-19 wave, a sharp rise in unsecured loan losses might still cost banks in Europe about 400 billion euros ($473 billion), the report said. "The pandemic is unlikely to cripple the European banking sector, however many banks will be pushed into a 'limbo state', with very weak returns," said Oliver Wyman's co-head of EMEA financial services. Visit Business Insider's homepage...
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France posted a nearly 14% decline in output, a third consecutive quarterly drop for the economy, and the worst three month fall in history, according to data released Friday. Although things were expected to be worse as economists predicted a decline of 15.2%, the second-quarter figures reflect the painful economic state that the COVID-19 outbreak left France in. France's "negative developments in the first half of 2020 is linked to the shut-down of 'non-essential' activities in the context of the implementation of the lockdown between mid-March and the beginning of May," the country's statistics agency said. In other parts of Europe, Germany posted...
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Germany's economy saw a sharp 10% drop in the second quarter of 2020, the worst quarterly GDP contraction since records began in 1970. Germany's record decline reflected the impact of an economic plunge across areas including trade, consumer spending, and investment.  Unemployment remains a concern with jobs in the country's major airlines and automotive sectors at high risk. Fears are growing over an expected COVID-19 second wave with an influx of tourists and reopening of businesses. Visit Business Insider's homepage for more stories. Europe's biggest economy slumped the most since 1970, with GDP declining 10% in the second quarter, the country's statistics...
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Some European economies are picking up from coronavirus-led recessions earlier in the year as they loosen lockdown restrictions and reopen businesses, a set of business surveys showed. IHS Markit's Composite Purchasing Managers' Index showed significant improvements in both manufacturing and service sectors in July for the UK, France, Germany, and the wider Eurozone. Output across the euro area grew at the fastest rate in over two years as economies reopened, Chris Williamson, IHS Markit's chief economist commented. An economist at UBS Wealth Management said a key area to watch out for in the months ahead will be the labour market as firms report...
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One of the UK's largest market trading platforms, IG, saw a massive spike in active users and revenue amid a boom in day-trading, and higher market volatility during the pandemic. The trading platform added close to 100,000 new users in the fiscal year 2020, a 34% rise from the previous year. It also saw average daily trade volumes exceed 1 million in March, up from an average of only 336,000 in the same month in 2019. IG's annual pre-tax profits jumped 52% to $374 million, it said. Visit Business Insider's homepage for more stories. IG Group, one of the UK's biggest retail trading...
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Extensions
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Article Index
Extensions
Components
Modules
Plugins
Languages
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Out of the box, Joomla! does a great job of managing the content needed to make your Web site sing. But for many people, the true power of Joomla! lies in the application framework that makes it possible for developers all around the world to create powerful add-ons that are called Extensions. An Extension is used to add capabilities to Joomla! that do not exist in the base core code. Here are just some examples of the hundreds of available Extensions:

  • Dynamic form builders
  • Business or organisational directories
  • Document management
  • Image and multimedia galleries
  • E-commerce and shopping cart engines
  • Forums and chat software
  • Calendars
  • E-mail newsletters
  • Data collection and reporting tools
  • Banner advertising systems
  • Paid subscription services
  • and many, many, more

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!

A useful guide to the Extension site can be found at:
http://extensions.joomla.org/content/view/15/63/

Types of Extensions

There are five types of extensions:

  • Components
  • Modules
  • Templates
  • Plugins
  • Languages

You can read more about the specifics of these using the links in the Article Index - a Table of Contents (yet another useful feature of Joomla!) - at the top right or by clicking on the Next link below.


Component - Joomla! Extension Directory Components

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.

Many of Joomla!'s core features are provided by the use of default Components such as:

  • Contacts
  • Front Page
  • News Feeds
  • Banners
  • Mass Mail
  • Polls

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.


Module - Joomla! Extension Directory Modules

A more lightweight and flexible Extension used for page rendering is a Module. 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. Simlarly 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 using the Module Manager and editing the Module Position settings. For example, "left" and "right" are common for a 3 column layout.

Displaying Modules

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

Note: Your Main Menu is a Module! When you create a new Menu in the Menu Manager you are actually copying the Main Menu Module (mod_mainmenu) code and giving it the name of your new Menu. When you copy a Module you do not copy all of its parameters, you simply allow Joomla! to use the same code with two separate settings.

Newsflash Example

Newsflash is a Module which will display Articles from your site in an assignable Module position. It can be used and configured to display one Category, all Categories, or to randomly choose Articles to highlight to Users. It will display as much of an Article as you set, and will show a Read more... link to take the User to the full Article.

The Newsflash Component is particularly useful for things like Site News or to show the latest Article added to your Web site.


Plugin - Joomla! Extension Directory Plugins

One of the more advanced Extensions for Joomla! is the Plugin. In previous versions of Joomla! 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!. Editors are Plugins, for example, that execute when the Joomla! event onGetEditorArea occurs. Using a Plugin allows a developer to change the way their code behaves depending upon which Plugins are installed to react to an event.


Language - Joomla! Extensions Directory Languages

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.

More information on languages is available from the
http://community.joomla.org/translations.html

Last Updated on Monday, 11 August 2008 06:00