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I need to create a custom submit handler when blocks that are assigned to a certain region are saved (whether an existing or a new block)

I am using :

function MY_MODULE_NAME_form_alter(&$form, $form_state, $form_id) {
  if ($form['#id'] == 'block-admin-configure'){

    //If the block being saved is in region "Header" then do something
  }

Can someone tell me what to replace my commented line with please ?

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  • What if the theme it's being saved in doesn't have a "header"region? – Clive♦ Jan 31 '17 at 16:06
  • This functionality is just for a custom module for a specific client & theme. – wotney Jan 31 '17 at 16:17
  • Attach a submit handler, in that handler loop over array_filter($form_state['regions']), that contains the selected regions by machine name – Clive♦ Jan 31 '17 at 16:22
  • Thanks Clive, but can you give me an example?... when I view the properties for $form_state, regions isn't there. – wotney Feb 1 '17 at 11:46
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You can implement hook_block_save($delta = '', $edit = array()) to execute your custom code.

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