Drupal 6.x

This is how you can add your own submit function to another modules form. To make this work I had to increase the weight on my module to override the other module. Then I had to rearrange the submit function order to make it first call my function and then call the other submit function.

Sometimes you need to include a library that already exists and you think require_once() should solve it, but it doesn't. It will give you an Fatal error saying that you Cannot redeclare some function because its previously declared

Common libraries should not be installed in the module it should be installed in sites/all/default/libraries or something like that. But one other solution is to wrap the require_once() function with a function_exists().

This is how you can set up your own theme function and converting the same data sent to Drupal theme function for "table" and instead get it as a DIV structure. You need to add some CSS or styling the DIV structure to make it look like desired. This code is for a module.

Here are the basic permissions of an Drupal 6.x installation, after you have let Drupal write to your settings file. During the installation you have to have the permissions set to 755 to let Drupal write to the settings.php file. An easy way to check if your site is secure is to go to the status page (admin/reports/status).

To fix Support Ticketing System module filename error I have used this hack in support.module. The problem is that if the file name contains other characters than A-Z it end up in some unconverted file name that is not good looking and can in some cases make it hard to open. The file name can look like this: "=?ISO-8859-1?Q?Spr=E5khantering=2Epdf?=" when it should be "Språkhantering.pdf". It seems like urldecode() encounters a problem and returns some sort of ISO string. My solution was to replace all non A-Z characters by "x".

This is how you can create a table from an array in Drupal. First loop your data and set an new array to have the ability to set class or id to cells or rows. Then call the theme() function in Drupal and format the output.

Here are some links and notes about cron on Drupal 6. When you let the server run cron on your Drupal installation it runs as Anonymous user (uid=0) and if you have some tasks that requires admin access it will leave those. One workaround is to temporary fake another user, like it was admin (uid=1) who run the cronjob.

This is a safer way to temporary change the user because if the function crashes it has not saved the temporary user. If the function succeed it returns to Anonymous user when finished.

This is how you can transform a CCK field and add it to the body content by using nodeapi

One solution of the missing labels for CCK single on/off checkbox field is to allow Unlimited values, even if you only have one value to choose. For instance if you have CCK field "Auto publish" and you want one checkbox with the label "Auto publish" and the value besides the checkbox, like "Yes". One drawback of this is that the value don't appear on edit page...