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I want to check, in a node template file (node-node-type.tpl.php), that code is executing because of a direct request from a user visiting a node page or from calling node_load function in somewhere else?

EDIT:

the problem was 'Number of posts on main page' option in 'Post settings'. its value was 30 (I don't remember why I set it to its maximum value but I'm sure there was a reason that wasn't related to it's true functionality I think it triggers something else).

now that we know problem is from 'Number of posts on main page' option how I can I fix it? why this option invokes node template file despite the fact that I use a custom page.tpl.php which doesn't call node_view at all?

  • Can you please elaborate your question? Thanks – ninjascorner Jun 21 '12 at 7:23
  • node_load is a core function no node can be loaded without this call. – niksmac Jun 21 '12 at 7:30
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    @ninjascorner a node template file executes: 1- when a user see that specific node type(=content type) page e.g. node/nid 2-when there is a call to node_load(nid).Now in node-node-type.tpl.php how can I check that? – sepehr Jun 21 '12 at 7:33
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    Please, explain WHY. Maybe we can find better solution :) – kalabro Jun 21 '12 at 7:46
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    @sepehr node_load() doesn't ever invoke the node template file. It's a function for loading a node, it has zero connection to the theme layer. I think you're getting it confused with node_view(), which does invoke the node template file – Clive Jun 21 '12 at 7:57
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Edit: I realise after writing the answer that I sound rather negative. Sorry about that, but I can't phrase this in a positive fashion.

Answer: First, and foremost, you are mixing logic, with output. The template should not have logic in it, and should absolutely not care about why it was called.

When a user visits node/1, core will call node_load(1). This is in no way different from calling node_load(1) anywhere else.

A node template does also not execute as a direct result of loading a node. Templates are used when the theme layer renders a node, which is the completely other end of the response.

You can, in theory, call debug_backtrace() to get the call stack, and from there figure out more information about from where node_load was called, but there is almost certainly exactly 0 valid use-cases for this. I guarantee that you do not want to go down that path, and even considering it means that something is seriously wrong.

I have built Drupal-sites professionaly for years now, and have done some really, really ugly hacks during that time. Neither of them would come anywhere near analysing the stacktrace, in the theme layer.

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    For debug and exploration purposes Devel's ddebug_backtrace() can be used too. – kalabro Jun 21 '12 at 7:44
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node will displayed after creating renderable array via node_view(node_load($nid)). so if there is somewhere where you render node yourself, you can pass extra variable to node_view and catch it in node--node-type.tpl.php

another solution is using context module, where you can set static variable and get it in node--node-type.tpl.php then unset it again

context_set('mynamespace', 'customrender', true);

print drupal_render(node_view(node_load($nid))); //and in node--node-type.tpl.php context_get('mynamespace', 'customrender');

context_set('mynamespace', 'customrender', false);

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