Module development and code questions

Hi,
i've installed the last version of the module mysite; But i have an error in the view page :
warning: Invalid argument supplied for foreach() in ....\drupal5\modules\mysite\plugins\layouts\default.php on line 41.
Please can you help me.
Sorry for my bad english:)
Thank you

I'm sure this is probably something really simple that I've overlooked, but I'm developing a module and I want to make some additional options accessible if an optional module is also installed. Is there a way to check if a module is installed?

Thanks,
Steph

Hello

I want to add view field to download_count module, so i read views docs and made up some partially working php code but i am in trouble anyway...

maybe someone could expand this to fully working field (counting downloads of all files attached to node, not only first?)

http://drupal.org/node/144119 this is my feature req... any help would be fine...

regards!

Is it just me, or has anyone noticed how the majority of the modules (well, majority of the ones I've downloaded so far), don't actually make use of the "Body field label" for a given content type?
For example, when editing a content type it has a nice little label stating:
"To omit the body field for this content type, remove any text and leave this field blank."
And yet, a lot don't actually obey that ... nor do they even obey the "Body field label" for changing the name ...

... hmm ... what a shame, so much wasted real estate on stuff I don't need.

I installed ed_classifieds and before i set the categories someone placed an ad. As a result i could not get the Categories to show up properly. Instead of getting a listing of the categories I got "There are 0 ads in this category when you click the Classified Ads link.

I deleted the ads and uninstalled the module. I then deleted the tables in mySQL. I then unzipped a fresh module and and reinstalled. Now it does not install the taxonomy category "Classified ads" and when I create the category I am right back where I started.

How can i use the Webserver)auth module? This module doesn't have a documentation.

Anyone have examples?