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How to delete records from database in Joomla?
Finally, there is also a delete method to remove records from the database. Below is the code for a simple Joomla module which you can install and run to demonstrate use of the JDatabase functionality for updating records in the database, and which you can adapt to experiment with some of the concepts described above.
Is there a trash can on Joomla for Mac?
Joomla’s trash can is similar to those on PC’s and Mac’s. Sending items to the trash can is an action that can be undone. In this short tutorial, I’m going to show you how to remove articles from the trash can and delete them forever.
How to create a database connection in Joomla?
Joomla can use different kinds of SQL database systems and run in a variety of environments with different table-prefixes. In addition to these functions, the class automatically creates the database connection. Besides instantiating the object you need just two lines of code to get a result from the database in a variety of formats.
How many lines of code to instantiate an object in Joomla?
Besides instantiating the object you need just two lines of code to get a result from the database in a variety of formats. Using the Joomla database layer ensures a maximum of compatibility and flexibility for your extension.
How to update email address in jdatabase-Joomla?
The code above updates the email address field in the users record of the currently logged-on user, toggling between upper case and lower case in successive reloads of the web page. The method Factory::getUser () returns the user object of the currently logged-on user, or if not logged on, then a blank user object, whose id field is set to zero.
What are the new features of Joomla platform API?
New versions of the Joomla Platform API provide additional functionality which extends the database layer further, and includes features such as connectors to a greater variety of database servers and the query chaining to improve readability of connection code and simplify SQL coding.
When to use jdatabase in Joomla tutorial?
Being able to use JDatabase is vital when you start developing for Joomla. The tutorial is split into two independent parts: Inserting, updating and removing data from the database. Selecting data from one or more tables and retrieving it in a variety of different forms.
When to use loadresult in Joomla database?
Use loadResult () when you expect just a single value back from your database query. This is often the result of a ‘count’ query to get a number of records: or where you are just looking for a single field from a single row of the table (or possibly a single field from the first row returned).
How to select username and email in Joomla?
The code above selects and outputs the username and email of the records in the Joomla users table, apart from those of the currently logged-on user. The method Factory::getUser() returns the user object of the currently logged-on user, or if not logged on, then a blank user object, whose id field is set to zero.