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Dear forum members,
for some days I'm trying to recreate a functionality of Views I foolishly overwrote. Only one thing is for sure; it worked without PHP coding, for I'm a very, very unskilled coder with PHP to tackle something like that (which doesn't mean this state can't be improved...)
I'm using booknavigation and taxonomy.
The Hierarchy of the booknavigation is the same as the one for the taxonomy:
---[here you find the content related to the Child-Page aaa resp. to the term aaa content]
---[here you find the content related to the Child-Page aab resp. to the term aab content]
---[here you find the content related to the Child-Page aac resp. to the term aac content]
---[here you find the content related to the Child-Page aba resp. to the term aba content]
---[here you find the content related to the Child-Page abb resp. to the term abb content]
---[here you find the content related to the Child-Page abc resp. to the term abc content]
[this pattern is to be continued up to Page c resp. term c]
At that time, I achieved to build a View which returned the following book children resp. term children when clicking on the booknavigation resp. taxonomy term aa:
Likewise: when clicking ona
Additionally I somehow made this view work as block in the content region of a node (e.g. in the Content region of the Bookpage resp. the Content related to the term aa).
Only one thing is clear: somehow I correctly utilized a contextual filter. I assume, a contextual filter is in the Views of Drupal 7, what is called an argument in the Views of Drupal 6.
I searched the Web and in some Drupal-7 books (which in many cases still show the Views version of Drupal 6, which is a little bit irritating me), but to no avail.
I would be glad to learn what I did (astoundingly) right at that time.
(And one thing I already learned: Deploy Screen Copy More Often, Stupid!)
Thank you very much for your patience reading so far.