Org-capture template expansion properties & prompt references

[nobiot]

@nobiot

I think the implementation below avoids the “circular behavior” and prompts for a property. It works on my end.

I tried to implement something different with a let-bound-variable, I failed. I needed to define the variable anyway with defvar, so perhaps my original idea was not possible syntactically.

(add-to-list 'org-roam-capture-templates
             '("s" "special" plain ""
               :target
               (file+head "./${id}.org" "
#+title: ${title}
#+author: %(read-string \"Author: \")
#+id: ${id}

")))

Please disregard this. I keep forgetting about your “template” requirement.

This below works on my end.

I am not really concerned with the “circular behavior” or that the “capture template to have implementation details (the calls for the evaluation of the let-bound-variables instead of the “normal” way of referencing prompts)”.

An inner scope can work with variables in the outer scope. In this case, it’s only me using this let-binding, and can guarantee that it works for me and I don’t need to worry about usage by others.

(defvar var "")

(setq org-roam-capture-templates
             '(("s" "special" plain ""
               :target
               (file+head "./${id}.org" "
#+title: ${title}
#+author: %(identity var)
#+id: ${id}

This is a template %(identity var)

"))))


(let ((var (read-string "Author: ")))
  (org-roam-capture nil "s"))