Module development and code questions

Hi, I've made a custom node type for keeping track of movie reviews and have a Free Tagging taxonomy called "Movie Cast" where the names of actors are placed. The default 'maxlength' is 100 (not 128 as stated in the form api's reference) but it is too short for a list of cast members. I want to change the 'maxlength' to 1024.

This is probably something very easy to do, but I've searched high and low for it, and I can't find it.

I need to be able to display the TEXT (in a non-editable format) of an entire PHP file, and I need to be able to do it with multiple pages (so basically, a dynamic function, based on whatever file I request).

Hi,

I'm trying to develop a module that will also need to present some data in the user's profile. I think I've figured out that I need to use the _user hook, but I cant find anything explaining the variables to be input.

Can someone point me to the tutorial or explain these to me?

thanks

Would there be a way that i could use a image module that resembles the image gallery used with the Meta Theme?

Like if there is an AJAX Image gallery available for 4.7?

Thank you!

I'm converting some programs I put together into modules as I get ready to re-launch my site using drupal.

I've got information tied to users in various different tables. If I need to my my user's primary key, where do I get that?

I did

	$pageContent .= '<table>';
	foreach ($_SESSION as $key => $val){
			$pageContent .= "<tr><td>$key <td> $val </tr>\n";
		}
	$pageContent .= '</table>';

I assumed as session variable would be storing this, but i don't see it.

Guys,

Doing a little search for a module to autosave form contents in Drupal (for preventing the loss of data) I found a while ago somebody was thinking about an implementation of such this module (take a look at http://drupal.org/node/25463).
Is there any project to implement this module or a similar one? Or is already implemented?

Thanks.
Antonello