How to add custom field in table using Joomla?

I am new in Joomla. I want to add custom fields in registration and I also want to 开发者_如何学Pythonsave its data to jos_users.

How do I add a custom field in jos_users table?

Please help me.

Joomla core doesnt allow adding custom fields to registration form. However with the help of some add-ons custom fields could be created, check these:

• Juser
• Extended reg

Now I don't know if those extensions save the data in to jos_user. Probably they crate a new table because of the custom fields. But they probably keep that table in sync with jos_user. You should ask this to the developer of the extension or try it yourself and see.

Another option is to modify joomla core yourself. If you add fields to the jos_users table in Joomla 1.5, you need to modify the following files:

libraries/joomla/database/table/user.php
libraries/joomla/user/user.php
com_user/views/user/tmpl/form.php
com_user/views/register/tmpl/default.php
com_users/views/user/tmpl/form.php

I read that modifying the core files is wrong because when you update to the latest version of joomla all the changes will be gone. I guess that if you think you will never update to the latest version then try modifying the core files. One awesome link is

http://www.youtube.com/watch?v=dk_86nHu3AM

You can now add fields to the user signup form, natively, straight out of the box, without additional plugins or modules.