Joomla! 1.5 Development Cookbook Table Of Contents

Table of Contents

• Preface

• Chapter 1: Development using JoomlaCode.org and SVN
• Setting up a JoomlaCode.org project
• Managing members of a JoomlaCode.org project
• Setting up JoomlaCode.org Subversion
• Understanding the Subversion skeleton
• Understanding revisions in Subversion
• Understanding the Subversion process
• Checking out a Subversion repository using TortoiseSVN
• Editing a working copy using TortoiseSVN
• Inspecting changes using TortoiseSVN
• Updating a working copy and resolving conflicts using TortoiseSVN
• Committing changes using TortoiseSVN
• Exporting a working copy using TortoiseSVN

• Chapter 2: Keeping Extensions Secure
• Writing SQL safe queries
• Writing SQL-safe LIKE string comparison queries
• Using the token
• Making a filename safe
• Making a directory path safe
• Making a path safe
• Safely retrieving request data
• Getting a value from an array

• Chapter 3: Working with the Database
• Executing a query
• Loading the first cell from the result of a query
• Loading the first record from a query
• Loading more than one record from a query
• Handling DBO errors
• Creating a JTable
• Creating a new record using a JTable
• Updating a record using a JTable
• Reading an existing record using a JTable
• Deleting a record using a JTable
• Checking a record in and out (record locking) using a JTable
• Modifying record ordering using a JTable
• Publishing and unpublishing a record using a JTable
• Incrementing a record hit counter using a JTable

• Chapter 4: The Session and the User
• Getting the session handler
• Adding data to the session
• Getting session data
• Checking for session data
• Checking the session token
• Getting the user
• Determining if the current user is a guest
• Getting the user's name and username
• Getting the user's group ID and type
• Restricting a user's access using Public, Registered, and Special
• Getting the user's parameters
• Setting the user's parameters
• Extending and editing user parameters
• Sending an email to the user

• Chapter 5: Multilingual Recipes
• Creating a translation
• Translating some text
• Determining the character length of a UTF-8 string
• Removing leading and trailing UTF-8 whitespace
• Comparing UTF-8 strings
• Finding a UTF-8 string in a UTF-8 string
• Executing a regular expression on a UTF-8 string
• Reversing a UTF-8 string
• Extracting a substring from a UTF-8 string
• Replacing occurrences of a UTF-8 string in a UTF-8 string
• Accessing characters in a UTF-8 string by position
• Converting a string from one encoding to another
• Creating a UTF-8 aware database installation script

• Chapter 6: Interaction and Styling
• Getting page and component parameters
• Adding CSS to a page
• Overriding component templates
• Adding JavaScript to a page
• Creating a modal window
• Generating modal content
• Updating an element using Ajax and MooTools
• Updating an element based on a form using Ajax and MooTools
• Providing an Ajax response from a component
• Enabling pagination in a list of items

• Chapter 7: Customizing the Document
• Setting the document title
• Setting the document generator
• Setting the document description
• Adding metadata to the document
• Changing the document character set
• Changing the document MIME type
• Controlling client caching of responses
• Creating a PDF in a component
• Creating an RSS or Atom feed in a component
• Outputting a RAW document from a component
• Using a custom JDocument in a component (PHP 5 only)

• Chapter 8: Customizing the Backend
• Disabling the menu bar
• Setting the toolbar title and icon
• Adding common item manipulation buttons to the toolbar
• Adding common itemized manipulation buttons to the toolbar
• Adding custom buttons to the toolbar
• Adding spacers and dividers to the toolbar
• Adding a help system to a component
• Creating a filter header for tabular data in an MVC component
• Filtering tabular data in an MVC component
• Creating toggle-enabled order column headers for tabular data in an MVC component
• Ordering tabular data in an MVC component

• Chapter 9: Keeping it Extensible and Modular
• Loading plugins
• Invoking a plugin
• Creating a Joomla! search plugin
• Creating your own library and import function
• Installing a plugin programmatically during a component installation
• Managing categories the easy way
• Defining JParameters using XML
• Creating a JParameter object
• Rendering a JParameter object
• Saving JParameter data
• Getting and setting values in a JParameter object
• Defining your own JParameter type

• Chapter 10: JObjects and Arrays
• Getting a JObject property
• Getting all of the public JObject properties
• Setting a JObject property
• Setting a batch of JObject properties
• Reporting an error in a JObject
• Getting an error from a JObject
• Getting all errors from a JObject
• Converting an object to an array
• Converting an array to an object
• Getting a column from a multidimensional array
• Getting a value from an array
• Casting all elements of an array to integers
• Sorting an array of objects
• Imploding an array

• Chapter 11: Error Handling and Reporting
• Raising an error-level J!error
• Raising a warning-level J!error
• Raising a notice-level J!error
• Enqueuing a message
• Changing the default J!error handling
• Handling and raising a bespoke J!error
• Logging errors and events using JLog
• Throwing exceptions with PHP 5
• Catching exceptions with PHP 5

• Chapter 12: Files and Folders
• Checking whether a file or folder exists
• Reading a file
• Deleting a file or folder
• Copying a file or folder
• Moving and renaming files and folders
• Creating a folder
• Uploading files to Joomla!
• Reading a directory structure
• Changing file and folder permissions

• Index