How to select multiple dexterity elements of one type in one dexterity element of another type in Plone 5.1

[espenmn (Espen)]

@spanish

1.- Would I need to create a add-on with plonecli or could it be TTW in some way (creating some kind of file in the ZMI and calling it from the books template)?

2.- If I need to create a add-on with plonecli:

2.1.- In which file should the get_relateditems code be added?

2.2.- Could it be customized so that it only shows the related items of my RelationList?

2.3.- Would the Room and Book content types also have to be created with plonecli in the plugin or could be created TTW? And the templates?

You should use plonecli to make the add-on. It is possible to make the add-on manually (but don't do that)

When you use plonecli to make a (browser) view, it will make TWO files by default: view.py and template.pt. In view.py you add the code to get the related contents and you call this from template.pt:

SO, in view.py you have something like:

 def getRelations(self): 
      // find all backlinks
     return 'the result I found'

And in template.pt

<tal:related tal:repeat="related_stuff view/getRelations">

    ${related_stuff/Title}
    //other fields, image, description maybe

</tal:related>

[spanish (Manuel)]

Professionally solved by Espen on GitHub - espenmn/acentoweb.mediaflows

Thanks!