For exapmple, there is file field with allowing multiple files to upload.Then created a node by uploading some files (assume 10 pdf files).Now if we want to download all files in zip format on single click need to use below module.
1. Download and install this module as usual.
When you are wirting a custom form using Form API then if you want to show some text on text field / text area as disappeared when clicking in that box.Then basically you need to use onfocus / onblur events occurs when an element gets focus.
If you are getting white screen on drupal page then you need to know the error details first, for that simply open your index.php file add the below code
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1. M - modified a file
svn commit -m "ur message" filepath/File name
2. ! - Deleted it in ur local but not in ur svn repos
svn delete filepath/File name
then press svn status the output will come like
D - filepath/File name
There is nice videos to configure Oraganic groups module..
OG7 Example sites
This should do the trick in your custom module, just be specific to the content type.
Despite their important function, select multiple form fields are problematic. This article looked at the inherent problems with select multiple form fields, and talked about a few ways to improve upon them. I’d enjoy hearing from you if you found this helpful or have additional questions, comments or suggestions.