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Joomla! Programmers Documentation
Manual Index
Index of Articles
Introduction
Joomla! Programmers Documentation
Development Strategy
Joomla! Development Strategy
Software Release Cycle
Backward Compatibility Policy
Security Policy
Code Updates
Get Started
Get Started
Technical Requirements
IDE
IDE
PhpStorm
PhpStorm
Debugging
Visual Studio Code
Eclipse
GIT
Git
Git Basics
GitHub Example 1: This Manual
GitHub Example 2: Joomla! CMS
Composer
NPM
Coding Style Guide
General Concepts
General Concepts
Joomla's Lifecycle
Namespaces
Namespaces
Finding Class files with PSR4
Joomla Namespace Prefixes
Defining your Namespace Prefix
Class Autoloading
Extension And Dispatcher
Extension and Dispatcher Classes
Extension Class for Components
Dispatcher Class for Components
Extension and Dispatcher Classes for Modules
Extension and Dispatcher Classes for Plugins
Categories
Categories Overview
Using the Categories API
Implementing Categories in your Component
Dependency Injection
Dependency Injection
Basic Concept
The Dependency Injection Container
JConfig Example
Extensions and Child Containers
Registering Subdependencies
Modules and Plugins
Dependency Injection Issues
ACL
ACL
How Joomla Access Works
Permissions
Classes
Classes
Introduction
Dashboard
Database
Introduction
Select Data from the Database
Query Results
Insert Data into the Database
Updating a Record
Deleting a Record
Form Fields
Form Fields
Standard Fields
Standard Form Fields
Accessiblemedia Form Field
Accesslevel Form Field
Aliastag Form Field
Author Form Field
Cachehandler Form Field
Calendar Form Field
Captcha Form Field
Category Form Field
Checkbox Form Field
Checkboxes Form Field
ChromeStyle Form Field
Color Form Field
Combo Form Field
Componentlayout Form Field
Components Form Field
Contenthistory Form Field
ContentLanguage Form Field
Contenttype Form Field
DatabaseConnection Form Field
Date Form Field
Datetime Form Field
Editor Form Field
Email Form Field
File Form Field
Filelist Form Field
Folderlist Form Field
Frontendlanguage Form Field
Groupedlist Form Field
Headertag Form Field
Hidden Form Field
Imagelist Form Field
Integer Form Field
Language Form Field
Lastvisitdaterange Form Field
Limitbox Form Field
List Form Field
Media Form Field
Menu Form Field
Menuitem Form Field
Meter Form Field
ModalSelect Field
Modulelayout Form Field
Moduleorder Form Field
Moduleposition Form Field
Moduletag Form Field
Note Form Field
Number Form Field
Ordering Form Field
Password Form Field
Plugins Form Field
Pluginstatus Form Field
Predefinedlist Form Field
Radio Form Field
Radiobasic Form Field
Range Form Field
Redirectstatus Form Field
Registrationdaterange Form Field
Rules Form Field
Schemaorgcomponentsections Form Field
Sessionhandler Form Field
Spacer Form Field
SQL Form Field
Status Form Field
Subform Form Field
Tag Form Field
Telephone Form Field
Templatestyle Form Field
Text Form Field
Textarea Form Field
Time Form Field
Timezone Form Field
Transition Form Field
URL Form Field
User Form Field
Useractive Form Field
Usergrouplist Form Field
Userstate Form Field
WorkflowComponentSections Form Field
Workflowcondition Form Field
Workflowstage Form Field
Standard Form Field Attributes
Custom Fields Overview
Example Custom Fields
Forms
Forms
How Forms Work
MVC and other considerations
Server-side Validation
Client-side Validation
Manipulating Forms
Guided Tours
Guided Tours
Guided Tours Create Whatsnewtour
Guided Tours Creating Tours
Icons
Input
Javascript
JavaScript
Adding JavaScript to your Extension
Ajax and JsonResponse
Using com_ajax for Modules, Plugins and Templates
Js Library
Joomla JavaScript Library
Joomla core.js
Joomla Editors script
Joomla Dialog (popup) script
Content select (in modal) and cross window communication
Logging
Mail
Menus and Menuitems
Multilingual
Multilingual
Using Text Class
Language Files
Plural
Using Variables
Format Specifiers
Routing
Routing
Parsing an SEF URL
Building an SEF URL
RouterView
Accessing the Component Router class
Table
Table
Table-basic-table
Advanced Table Functionality
Introduction
User
Web Asset Manager
Web Services
Workflows
Building Extensions
Build Extensions
Install Update
Installation and Update
Installation
Installing Extensions
Manifest Files
Install Process and Script Files
Changelogs
Packages
Update Servers
Components
Components
MVC
Joomla Model View Controller pattern
MVC Overview
MVC Factory Overview
Post-Request-Get Pattern
Joomla Library MVC Classes
Component Examples
Component Examples
Example Form Component
Ajaxdemo Component
Custom Fields
Quicktask Link and Icon
Routing
Hide Table Columns
Tags
Modules
Modules
Module Development Tutorial
Module Development Tutorial
Step 1 Basic Module
Step 2 Adding a tmpl file
Step 3 Adding a helper file
Step 4 Adding Language Support
Step 5 Adding Configuration
Step 6 Adding a Script File
Step 7 Adding Javascript
Step 8 Dependency Injection
Step 9 Adding Ajax
Step 10 Using AbstractModuleDispatcher
Step 11 Update Server
Module Examples
Module Examples
Basic Module
Map Module
Plugins
Plugins
How Plugins Work
Plugins-methods-and-arguments
Plugin Tutorial
Plugin Advanced Features
Plugin Events
List of Plugin Events
Application / System Events
Content Events
Installer Events
Module Events
Plugin Examples
Plugin Examples
Ajax Plugin
Console Plugin - Hello World
Console Plugin Example - Execute a file of SQL statements
System Plugin Router Rules
Filesystem Plugin - Basic
Filesystem Plugin - FTP
Captcha Plugin
Editors Plugin
Editors Buttons (XTD) Plugin
User Plugin
WorkflowPlugin
Templates
Templates
Color scheme support
Custom Error Pages
Supporting Right to Left Languages
templateDetails.xml
Template
Packages
Libraries
Libraries
Creating a Joomla Library
Custom Script
Custom PHP Script
Example PHP Script
To Logon or not to Logon
Install
Daemon
Creating a Daemon Process
Accessibility
Accessibility
W3C Standards
Best Practices
Best Practices for Accessible Design
Page Template
Tooltip
Element Library
Accessible UI Library
Element Template
Testing Accessibility
Reporting Errors
Further Reading
Security
Security
Fundamentals
Common Vulnerabilities
Input Handling
Secure DB Queries
CSRF Protection
Forms & Validations
Common Errors
Common Errors
Testing
Testing
Automated Tests
Automated Testing
Concepts
System Tests
System Testing
Setup your testing environment
Writing Tests
Unit Tests
Unit Testing
Setup your testing environment
Writing Tests
Manual Tests
Manual Testing
The Joomla! Patch Tester
GitHub Codespaces
Prebuild Packages
Web Services Api
Web Services API
Json Response Format
JSON Response Format
User Interface Text
User Interface Text Guidelines
A Z
Action or Description
Capitalisation
Use of the Joomla Name
Punctuation
Words to Watch
External References
Index
Module Examples
In this section you can find worked examples of modules.
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