Completely hide the :PROPERTIES: drawer in org-mode

Question

Could someone please give me some assistance to completely hide the :PROPERTIES: drawer, including the line that says :PROPERTIES:.

* TASKS (with deadines)

    ** Next Action [#A] Ask the geniuses how to do this.  :lawlist:
       DEADLINE: <2013-07-04 Thu >
         :PROPERTIES:
         :ToodledoID: 330686790
         :ToodledoFolder: TASKS
         :Hash:     afa88f17317bbe2ce0ce661333cdcfb4
         :END:
       This line is for notes, which appears underneath the properties drawer.

* UNDATED (without deadlines)

    ** Someday [#A] Close but no cigar -- keep trying.  :lawlist:
          :PROPERTIES:
          :ToodledoID: 330686680
          :ToodledoFolder: TASKS
          :Hash:     eb0b8d360b5b1453dd66ed0c5698e135
          :END:
       This line is for notes, which appears underneath the properties drawer.

I didn't see this feature by Googling, so I'm guessing that some special lines of code will be needed to make this feature request a reality. [In other words, I don't think it is a Super User question because this will need to be invented with some special code.]

Answer 1

The following answer completely hides everything from :PROPERTIES: through :END:. It can be tested by evaluating (org-cycle-hide-drawers 'children), or (org-cycle-hide-drawers 'all), or in conjunction with the other functions relating to cycling the outline views. The standard functions to unfold that are included within the org-mode family all work -- e.g., show-all; org-show-subtree; etc.

(require 'org)

(defun org-cycle-hide-drawers (state)
  "Re-hide all drawers after a visibility state change."
  (when (and (derived-mode-p 'org-mode)
             (not (memq state '(overview folded contents))))
    (save-excursion
      (let* ((globalp (memq state '(contents all)))
             (beg (if globalp
                    (point-min)
                    (point)))
             (end (if globalp
                    (point-max)
                    (if (eq state 'children)
                      (save-excursion
                        (outline-next-heading)
                        (point))
                      (org-end-of-subtree t)))))
        (goto-char beg)
        (while (re-search-forward org-drawer-regexp end t)
          (save-excursion
            (beginning-of-line 1)
            (when (looking-at org-drawer-regexp)
              (let* ((start (1- (match-beginning 0)))
                     (limit
                       (save-excursion
                         (outline-next-heading)
                           (point)))
                     (msg (format
                            (concat
                              "org-cycle-hide-drawers:  "
                              "`:END:`"
                              " line missing at position %s")
                            (1+ start))))
                (if (re-search-forward "^[ \t]*:END:" limit t)
                  (outline-flag-region start (point-at-eol) t)
                  (user-error msg))))))))))

---

For anyone who interested in tab cycling between all of the various views (including revealing what is inside the :PROPERTIES: drawer, there is an easy modification to org-cycle-internal-local by adding an additional condition before (t ;; Default action: hide the subtree. . . .

((eq org-cycle-subtree-status 'subtree)
  (org-show-subtree)
  (org-unlogged-message "ALL")
  (setq org-cycle-subtree-status 'all))

---

Screenshot -- Drawers Hidden:

https://www.lawlist.com/images/org_mode_properties_a.png

---

Screenshot -- Drawers Visible:

https://www.lawlist.com/images/org_mode_properties_b.png