[support] The best place to edit the node title?

[Augustin (Beginner)]

Hello,

Where is the best place for a module/theme to edit the node title?
I would like to prepend the node type to the title input by the user. 



I have custom node types created with hook_*().
I tried to set $node->title in hook_view(), but it doesn't affect anything. 

Changing the node title at the theme level seems a bit clumsy: too much php 
and sql queries would be needed there. 


Where do you handle this?

Thanks,



Augustin.


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