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I have an html template variable called "sitepage" that needs to be set by a module based on node relationships.

Is there a way to set html.tpl variables from a module?

function dc_preprocess_html(&$vars)
{
    $vars['sitepage'] = '/*Insert Business Logic as described below*/';
}

The logic for what the sitepage should be is as followed:

  1. If we are on a car model or car make page then find the car make node and check to see if there is a node reference to an Advertiser node.
  2. Using the advertiser node, check the field "field_sponsor_site_page" to determine the site page

I can easily do this in the module code, but need to do this so I can put the variable in html.tpl.php

The way it works now:

I have 2 pages in play:

  1. Car Detail Page: model/[Car Make Node FIELD_COLLECTION_ID]
  2. List Cars of a particular model: makes/[Car Make Node Id]

A car make node has a node reference to Advertiser. The advertiser has a sitepage that needs to be inserted into html.tpl.php in both cases based on this business logic

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    Really not following you here, you've already answered the question in the question...you use template_preprocess_html. Assuming your module is called dc all you need to do is fill in the 'easy' business logic part and you're done. What have I missed? – Clive Feb 21 '13 at 15:09
  • The code for the business logic is in a module called dc_car_guide but I need to set a variabled $sitepage in html.tpl.php I will update question with more details – Chris Muench Feb 21 '13 at 15:12
  • Do you realise modules can also implement preprocess hooks in exactly the same way? Just call the function dc_car_guide_preprocess_html... – Clive Feb 21 '13 at 15:15
  • that seems to work, but It seem the module preprocess_html is called before the template preprocess. How is the order determined? – Chris Muench Feb 21 '13 at 15:40
  • Yes hooks for modules are always run first. Why would you need it to run after the theme layer? – Clive Feb 21 '13 at 15:58
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try

hook_module_implements_alter()

to alter the hooks order

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  • How is order determined anyways? – Chris Muench Feb 21 '13 at 15:50
  • its based on the module name acctually ... – Pan Chrono Feb 21 '13 at 15:51
  • It's based on a few factors not just module name. There's a question on the site somewhere that explains it really well ill try to dig it out... – Clive Feb 21 '13 at 15:55
  • drupal.org/node/110238 Good call for a better search, cheers – Pan Chrono Feb 22 '13 at 17:57

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