Re: org-map-entries but with arguments?

[John Kitchin <jkitchin@andrew.cmu.edu>]

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You can get an alist of all the properties in an entry with
org-entry-properties, and then you can let-alist these, or do something
else. Here is an example that might be related.

* test
  :PROPERTIES:
  :some-random-property: True
  :END:

#+BEGIN_SRC emacs-lisp :results code
(org-entry-properties)
#+END_SRC

#+RESULTS:
#+begin_src emacs-lisp
(("CATEGORY" . "2019-09-18 21:33")
 ("SOME-RANDOM-PROPERTY" . "True")
 ("BLOCKED" . "")
 ("FILE" . "/Users/jkitchin/Box
Sync/kitchingroup/jkitchin/journal/2019/09/18 21:33/2019-09-18 21:33.org")
 ("PRIORITY" . "B")
 ("ITEM" . "test"))
#+end_src

#+BEGIN_SRC emacs-lisp
(let-alist (cl-loop for (key . value) in (org-entry-properties)
   collect (cons (intern key) value))
 .SOME-RANDOM-PROPERTY)
#+END_SRC

#+RESULTS:
: True

John

-----------------------------------
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu



On Wed, Sep 18, 2019 at 9:11 PM Matt Price <moptop99@gmail.com> wrote:

>
> Sorry, replied to Adam directly by accident.
>
> On Wed, Sep 18, 2019 at 8:32 PM Matt Price <moptop99@gmail.com> wrote:
>
>>
>>
>> On Wed, Sep 18, 2019 at 5:31 PM Adam Porter <adam@alphapapa.net> wrote:
>>
>>> Matt Price <moptop99@gmail.com> writes:
>>>
>>> > Is there a lisp trick for adding arguments to the function called by
>>> > `org-map-entries`?
>>> >
>>> > I have the following function:
>>> >
>>> > (cl-defun org-lms-return-all-assignments (&optional (send-all nil)
>>> (also-mail nil) (post-to-lms t) )
>>> >   "By default mail all subtrees 'READY' to student recipients, unless
>>> SEND-ALL is non-nil.
>>> > In that case, send all marked 'READY' or 'TODO'."
>>> >   (interactive)
>>> >   (message "Mailing all READY subtrees to students")
>>> >   (let ((send-condition
>>> >          (if send-all
>>> >              `(or (string= (org-element-property :todo-keyword item)
>>> "READY")
>>> >                   (string= (org-element-property :todo-keyword item)
>>> "TODO") )
>>> >            `(string= (org-element-property :todo-keyword item) "READY")
>>> >            )))
>>> >     (org-map-entries
>>> >      #'ol-send-just-one))
>>> >   (org-cycle-hide-drawers 'all))
>>> >
>>> > I'd like to relay some of hte functions arguments to the one called
>>> > internally to do the work.  ~(ol-send-just-one~ takes an ~also-mail~
>>> > and a ~post-to-lms~ parameter,just like
>>> > ~org-lms-return-all-assignments~, but I'm not sure how to trick
>>> > org-map-entries into passing those arguments on. Any hints?  Thank
>>> > you!
>>>
>>> Hi Matt,
>>>
>>> If I may, I think org-ql can help you here.  It should also work much
>>> faster than org-map-entries, because it can skip to entries with the
>>> desired to-do keywords (although you could also use the MATCH argument
>>> to org-map-entries to improve its speed).  Try this function (untested):
>>>
>>> #+BEGIN_SRC elisp
>>> (cl-defun org-lms-return-all-assignments-ql (&optional (send-all nil)
>>> (also-mail nil) (post-to-lms t))
>>>   "By default mail all subtrees 'READY' to student recipients, unless
>>> SEND-ALL is non-nil.
>>> In that case, send all marked 'READY' or 'TODO'."
>>>   (interactive)
>>>   (message "Mailing all READY subtrees to students")
>>>   (let ((todo-keywords (if send-all
>>>                            '("READY" "TODO")
>>>                          '("READY"))))
>>>     (org-ql-select (current-buffer)
>>>       `(todo ,@todo-keywords)
>>>       :action `(ol-send-just-one ,also-mail ,post-to-lms))))
>>> #+END_SRC
>>>
>>> OK, this is pretty cool, thank you.  I took John's excellent suggestion
>> of using a headline property to store the appropriate actions, but it makes
>> sense to switch to org-ql if I can master the syntax (which seems awfully
>> powerful).  One questions: does org-ql-select respect buffer narrowing?
>> That would be important for me.
>>
>> Man, hard to hold all this stuff in my head.  ANd very hard to navigate
>> my own code now that I see how ugly it is.
>>
>
> Another question.  In place of a function or sexp,  the :action key
> accepts the keyword "element" as a value, and will return a parsed
> headline. Is it possible to then pass that value on to a function that will
> be evaluated? I'm asking because I have a bunch of functions with very long
> `let` sections in which information is extracted from a headline with
> (org-entry-get). It would be nice to use John's plist trick (from the other
> thread we're on) to, essentially, let-plist all the properties of the
> headline. It would declutter my code significantly.
>

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