Example Hook form validate, get all node information after save news field In a custom module, I do some operations on several content node (add field_collections and save)
After that, I need to get all field_collections of my content nodes.
But when I get, I have the old field_collections and not the new field_collections I just save.

Exemple : 

//I have this node in my submit hook
node0
    -&gt;field0
    -&gt;filed1

//I save a new field (via entity_metadata_wrapper and save() ), and I get this node after
//I Have
node0
    -&gt;field0
    -&gt;filed1    

//But I would like have 
node0
    -&gt;field0
    -&gt;filed1    
    -&gt;field2 //the new field I just save


Are there a Hook I can use after a validate form ? But I would like keep the information about who nodes has been save...for get only them
Or an other way I don't know ?  

I don't think I can clear the cache because my operations "save" and after "get" are in a heavy foreach
To grab your information before the node is saved you can use hook_node_presave, then if you want to gather information after its successfully saved simply use hook_node_update.

Also if you are saving it via the entity_metadata_wrapper you should still have access to the data after its saved.

$entity_wrapper-&gt;field_name-&gt;value(); //Should have field0, field1

//Add your value here

$entity_wrapper-&gt;save();

$entity_wrapper-&gt;field_name-&gt;value(); // Should have field0, field1, field2