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I am working on a Drupal 7 custom module and would like to update a field on a node after hitting save. Based on some post that I have seen this should be possible.

As it is now I have the $node object is a parameter to the node_submit hook after hitting save.

However, I am not able to update my field on this node object. Any pointers or examples of how to do this would be greatly appreciated.

Thanks, Derek

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Depending on your exact usage, you'd want to use either

1) hook_node_presave - Called on any node being saved (inserted or updated). see here

2) Attach a submit handler to the form: Allows to change the form's values before the submit is completed.

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  • Amir, thanks so much for you replay. I tried the hook_node_presave approach which seems promising. However, I am noticing that hook_node_presave seems to occur after hook_node_submit. And I am working with some variables in hook_node_submit which I trying to use to update the field value with.
    – geo derek
    Apr 11, 2015 at 3:33
  • Again, usage depends on what you need. hook_node_presave occurs just before the node is being saved to the database, regardless of context which will allow you to globally change things, but without the form's context. Using a submit handler will let you change the submitted values before anything else occurs - with all the values inputted in the form's field.
    – Amir Arbel
    Apr 11, 2015 at 9:45
  • I like the form_alter approach and am trying that as a submit handler. However, I am trying read the path to a file that is uploaded within this handler. This function fires before save is hit. This may really be for a different topic but do you know if it possible to get the path to a file upload within the form_alter? Thanks.
    – geo derek
    Apr 12, 2015 at 14:48
  • Amir, I was able to get this working with hook_file_insert. Thanks again for your original advice as it did point me in the right direction.
    – geo derek
    Apr 12, 2015 at 19:34

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