Module Login on article Joomla 2.5 - authentication

Question

I created an article on joomla and I'd like to display a part for all(public) and another part of article only for registered users. Now I create a module that I integrated on article page, but I'd like to display the login.
Alternatively I can create 2 page: a login page that redirect to the my registered article. How can I do this?
Thanks

Answer 1

Or just use the built in show unauthorized feature that shows the intro but not the body to users who do not have authorization to see the article. YOu can set this globally or article by article or with a menu link.

Answer 2

For the login module, what you can do is, define a custom position for it by typing one in, rather than selecting one of the predefined ones, then embed it by using the following code:
{loadposition xxx} //xxx being the position you defined
Or, you can use an extensions from the Content Restriction category on JED to restrict content.
Personally, I think Hider might be your best choice, as it allows you to defines specific groups and specific content.
Alternatively, you can do it this way. Firstly, download and install Sourcerer which allows you to use any code in your articles. Then use the following code inside your article and be sure to use the {source} tags:
{source}
$user = JFactory::getUser();
if ($user->guest) {
echo "some content";
echo "Login to read more";
echo "{loadposition xxx}";
}
else {
echo "all content";
}
{/source}