Module development and code questions

I'd like to have a mod that can allow the admin:

1.to view the total uploaded ( for all nodes) per user and then be able to set an upload limit for say ...a role. Thus giveing all users in a role an upload limit and then
2.being able to setup say a monthly upload limit and reset this at the end of the month.

Is there something similar out here already...some module I could learn from or modify.
Be glad for any pointers. Thank you.
-dan

This post is to propose an enhancement of taxonomy module so that it will be possible to to filter nodes also on node type.

This is a need when you have to share one vocabulary between multiple node types.
One example is the vocabulary 'Geography', containing all Cities and Regions. You could have events, stories and other custom made node types, sharing this vocabulary.
The need arises when you want to see only events of a certain region; if you filter only on region, you'll see also stories and the other custom node types.

The new syntax, according to new Drupal 4.5 syntax, could be the following:

taxonomy/term/term1,term2,term3(nodetype1,nodetype2)/........

to filter based on three terms (in OR each others) and on two different node types

or

taxonomy/term/term1+term2+term3(nodetype1,nodetype2)/........

to filter based on three terms (in AND each others) and on two different node types

The rest of the syntax for taxonomy/term will remain the same.

Node types should be tested for validity. You can specify one or more node types; if you omit node types, normal term filtering is issued.

I understand that this need is a common interest of many people; in the past I submitted a patch that adds such feature, but it remained in a limbo situation.

I would like to go on with it, because I need for some sites I'm setting up, but would like to avoid creating a new module, and would like to have such feature in the core, so that modules like taxonomy_html, taxonomy_browser and taxonomy_dhtml could benefit from it.

I'm considering writing a module to handle assignments and classes for my school. The module would support teachers (a user group), the classes they create, and the assignments in each of those classes. I want students to be able to create a class list and easily see what assignments there are. I don't want any sort of "distance learning" features - this is a real brick-and-mortar school.

I have just started designing a page around Drupal, and it is amazing...

My question:

Is there any way to add more fields to products?

Example: Add a size dropdown box to a listing for a shirt

I'd like to trigger a couple of inserts that happen just after a new user is created. I've poked around the user.module and haven't yet found the best place to put something like this.

Any advice would be greatly appreciated! I'm running 4.5.1

thanks,
Phil

As wonderful as Drupal is, it would be awesome if a generic container module was available that would allow for external web pages to be embedded in an iframe and then positioned as a Block. I have seen reams of complex how-to on this, but nothing straight forward for the rest of us mere mortal non-propeller heads. My guess is that there are thousands of other who would love to have the simplicity of such a tool, especially if it did not involve trying to write dozens of lines of code,

thanks much for your help