Hi Bastien,

Sorry about the formatting -- that's annoying. I've attached the patch. Here's its description:

Currently there isn't an easy way to have default cell values which differ from one propview block to another. This patch enables one to specify what a cell's default value for a block should be. For example, with this patch applied, you can do something like:

    #+BEGIN: propview :id " mytable" :defaultval "" :cols (PROP1 PROP2)

in order to make the default value for this block to be "" instead of 0 in the case that PROP1 or PROP2 isn't contained as a property of a headline.

Regards,

Mark
* contrib/lisp/org-collector.el (org-dblock-write:propview): if a 'defaultval'
  property has been set, then use this in place of org-propview-default-value.

TINYCHANGE
---
 contrib/lisp/org-collector.el | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/contrib/lisp/org-collector.el b/contrib/lisp/org-collector.el
index 60b9069..d62a462 100644
--- a/contrib/lisp/org-collector.el
+++ b/contrib/lisp/org-collector.el
@@ -121,6 +121,7 @@ preceeding the dblock, then update the contents of the dblock."
 	    (scope (plist-get params :scope))
 	    (noquote (plist-get params :noquote))
 	    (colnames (plist-get params :colnames))
+	    (defaultval (plist-get params :defaultval))
 	    (content-lines (org-split-string (plist-get params :content) "\n"))
 	    id table line pos)
 	(save-excursion
@@ -133,9 +134,10 @@ preceeding the dblock, then update the contents of the dblock."
 		  (t (error "Cannot find entry with :ID: %s" id))))
 	  (unless (eq id 'global) (org-narrow-to-subtree))
 	  (setq stringformat (if noquote "%s" "%S"))
-	  (setq table (org-propview-to-table
-		       (org-propview-collect cols stringformat conds match scope inherit
-					     (if colnames colnames cols)) stringformat))
+	  (let ((org-propview-default-value (if defaultval defaultval org-propview-default-value)))
+	    (setq table (org-propview-to-table
+			 (org-propview-collect cols stringformat conds match scope inherit
+					       (if colnames colnames cols)) stringformat)))
 	  (widen))
 	(setq pos (point))
 	(when content-lines

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