Custom Attributes in Liferay

Follow the steps for making custom attributes-

Go to Control Panel -> User - > Custom Attribute -> Add Custom Attribute

An Attribute is a key and type of the field (once saved) cannot be changed at all...

Accessing Custom Attribute Pragmatically:

ThemeDisplay themeDisplay=(ThemeDisplay)request.getAttribute(Web_Keys.THEME_DISPLAY);

User user = themeDisplay.getUser();

System.out.println(user.getExpendoBridge().getAttribute("CustomAttributeName"));

Setting Attribute Pragmatically:

ThemeDisplay themeDisplay =(ThemeDisplay)request.getAttribute(Web_Keys.THEME_DISPLAY);

User user = themeDisplay.getUser();

System.out.println(user.getExpendoBridge().setAttribute("CustomAttributeName","Value"));

Adding custom Attribute form element at Sign In Portlet

write the following code in /root/html/portlet/login/create_account.jsp

<liferay ui:custom-attribute-list

                  className="com.liferay.portal.model.user"

                  editable="<%=true%>"

                  label="<%=true%>">

but this will not visible to due to permission. So, login as admin and provide permission to guest to see and modify custom field through control panel.