[Orgmode] Idea - adds new TODO item for specific time and task-group

[Juraj Kubelka]

Hi,

I tried to implement function for adding a new todo item to an org-file.

Let's say there is a org-file:

=====
* Project 1
** Small Tasks of project 1
###-PROJECT1-###
*** a task no.1
    DEADLINE:....
...
=====

If I am in agenda-view and press "I" key, it will insert new task  
after the "###-PROJECT1-###" string with deadline or schedule for  
given day:

=====
* Project 1
** Small Tasks of project 1
###-PROJECT1-###
*** TODO (cursor here)
    DEADLINE: ....
*** a task no.1
    DEADLINE:....
...
=====

It is similar for "i" key (org-self-insert-command).  So, after  
pressing of "I" key, it will ask for schedule or deadline and  
afterwards for task-group according to a configuration (see attachment).

Am not so familiar with org-mode, so this is just pilot version with  
lot of drawbacks.  For example it will not insert new task, if file  
is in OVERVIEW presentation.

If some find it useful, I advice to add it to official package.  But  
of course with better implementation.  Can you have a look and  
explain me how to do it better?

Thank you in advance,
Juraj

============ code ============
(require 'org)

(defcustom myorg-tasks
  '((?s "Project1" "###-PROJECT1-###" "~/Org/main.org.txt")
    (?h "Home" "###-HOME-###" "~/Org/main.org.txt"))
  "*Tasks list.

(key description search-string file-name)
")

(defun myorg-insert-task (search-string what time file)
  "Add new TODO item in orgmode file after search-string string.

what = SCHEDULED or DEADLINE (see org-add-planning-info).
"
  (let (point)
    (find-file-other-window (substitute-in-file-name file))
    (when (setq point (save-excursion
                        (goto-char (point-min))
                        (search-forward search-string nil t)))
      (goto-char point)
      (org-insert-heading)
      (org-do-demote)
      (org-todo 'right)
      (org-add-planning-info what time 'closed))))


(defun myorg-agenda-insert-task ()
  "Make a task."
  (interactive)
  (org-agenda-check-type t 'agenda 'timeline)
  (require 'diary-lib)
  (let* ((char (progn
                 (message "Choose [d]eadline [s]chedule")
                 (read-char-exclusive)))
         (type (cdr (assoc char
                           '((?d . deadline)
                             (?s . scheduled)))))
         (point (point))
         (calendar-date-display-form '(year "-" month "-" day))
         task)
    (unless type
      (error "No task type associated with <%c>" char))
    (unless (setq time (get-text-property point 'day))
      (error "Don't know which date to use for task entry"))

    (unless (setq task (myorg-ask-for-task-type))
      (error "No tasks selected."))
    (myorg-insert-task (caddr task) type
                       (org-read-date nil 'to-time
                                      (calendar-date-string
                                       (calendar-gregorian-from- 
absolute
                                        (get-text-property point  
'day))))
                       (cadddr task))))


(defun myorg-ask-for-task-type ()
  (unless myorg-tasks
    (error "No tasks defined.  See myorg-tasks custom variable."))
  (let* (tmp
         (tasks (dolist (task myorg-tasks tmp)
                  (setq tmp
                        (concat tmp
                                " "
                                (cadr task)
                                "["
                                (char-to-string (car task))
                                "]"
                                ))))
         (char (progn
                 (message "Choose %s" tasks)
                 (read-char-exclusive)))
         (selected (car (member* char myorg-tasks :key #'car :test  
#'eql))))
    selected))


(org-defkey org-agenda-mode-map "I" 'myorg-agenda-insert-task)