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I have an custom tpl.php inside of theme for some node type. It works fine but I would like my custom module to append some HTML after each such node (content of tpl.php). And I don't want to override the output from tpl.php inside of theme (just add something at the end of it).

Is there an hook for that or should I use different approach?

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You can use the node view alter hook in your module to add/change your node object:

This hook is called after the content has been assembled in a structured array and may be used for doing processing which requires that the complete node content structure has been built.

If you have devel enabled, you can dpm($node) inside your node_view_alter function to see the node structure and then you can add to it as needed from the module.

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  • Sorry for a bit silly question but should the function be function hook_node_view_alter(&$build) or function mymodule_hook_node_view_alter(&$build)? I tried both but it looks like neither of them is called. Could you maybe provide sample body of this function?
    – PolGraphic
    Commented Nov 23, 2016 at 15:46
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    Should be mymodule_node_view_alter(&$build) Did you clear caches after implementing this? Can you add your code to your original question? You can also read this excellent tutorial on understanding the hook system
    – longboardnode
    Commented Nov 23, 2016 at 16:28
  • Thank you for the link and clarification. After clearing cache everything works fine :)
    – PolGraphic
    Commented Nov 23, 2016 at 16:40

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