Drupal node 2-page content split - php

Question

My employer requires certain pages on the website have a two page feature.
What this means is that some default content show up on the node_view page as normal but the second part should show up when a link is clicked.
This will be easy if I could do this across multiple nodes but the requirement is for all the data to be stored in one node but displayed across two pages.
I hacked together the following code:
function mymodule_node_view($node, $view_mode, $langcode){
$path = current_path();
$path_alias = drupal_lookup_path('alias',$path);
$links = array( 'test' => array('title'=>'my_link', 'query'=>'', 'href'=>"{$path_alias}/nextpage") );
$node->content['my_module'] = array(
'#theme' => 'links__node__mymodule',
'#links' => $links,
'#attributes' => array('class' => array('links', 'inline')),
);
}
That creates a hyperlink called my_link across the top of my content area - which is great.
The problem starts when I click the hyperlink. Supposing I am on http://example.org/homepage and I click the hyperlink, I expect to be redirected to http://example.org/homepage/nextpage. Also, I still want to maintain the view and edit tabs of the actual node I was on. However, Drupal correctly gives me a "page not found" error.
What's interesting is if I used http://example.org/node/1 and visited http://example.org/node/1/nextpage, I don't get the issues I described above but the url is less descriptive.
To solve this problem, I am sure I have to extend hook_menu but I don't know how to account for any number of taxonomy terms leading up to the actual node title. So, I can't predict how many % I will need before the node title and then my /nextpage. However, I want /nextpage to still have the view and edit tabs of it's parent page.
This is all unexplored territory for me.
Update
I found the following function which does a great job of returning the entire node path complete with taxonomies:
$path = current_path();
$path_alias = drupal_lookup_path('alias',$path);
What I don't know is how to take advantage of this in hook_menu to dynamically create /nextpage for my nodes.
Please remember, I don't really want /nextpage to be entirely independent of the original and actual Drupal node. When on /nextpage I want to be able to have access to the view, edit etc tabs of the node.
So, /nextpage effectively is just an extension of a Drupal node page.

Answer 1

There is a quick way to do that. Using views module.
In the fields section choose the field you wanna view. And in the arguments add the nid.
Then add the link to the node view you already created.
The final result http://mysite/views-page/[nid]
Hope this helps... Muhammad.

Answer 2

I would check the node_menu() function to get some reference on how it's implemented.
Not sure on your taxonomy requirements so this might be insufficient but I'll go with what I understand.
But off the top of my head I'd go for something like:
function mymodule_menu() {
$items['node/%node/nextpage'] = array(
'title' => 'Next page',
'type' => MENU_LOCAL_TASK, // Makes it a tab on node/%node-pages
'page callback' => 'mymodule_node_page_view', // Your page display function
'page arguments' => array(1), // First will be a node object, second will be whatever value is passed in the url
// You should rip access callback and access arguments from node_menu()
);
return $items;
}
That should do something like what you are asking for.
It is also possible, easier and definitely recommended to do this with Panels/Pages (see also Chaos Tools) or arguably Views as they are quite capable of all this and generally a better way to work with Drupal's strengths than custom code.
Updated
To clarify I've simplified the menu hook and you should be able to use the below page view function. I still believe you would make a better solution using Panels and overriding node_view and such.
The MENU_LOCAL_TASK part in the menu hook should turn this into another tab along with View and Edit.
function mymodule_node_page_view($node) {
die("It works: ".$node->title);
}
Hope that's more helpful.