fix for adding drivers to constraints via python.

the RNA constraint api was checking the current context when getting the constraint driver path and renaming constraints.
this made scripts not work properly so changed this to search for the constraint pose channel user within the object (if the object its self is not the user).

1 files changed, 27 insertions, 0 deletions

diff --git a/source/blender/editors/object/object_constraint.c b/source/blender/editors/object/object_constraint.c
index 6d4706d02b3..eababfe8080 100644
--- a/source/blender/editors/object/object_constraint.c
+++ b/source/blender/editors/object/object_constraint.c
@@ -98,6 +98,33 @@ ListBase *get_active_constraints (Object *ob)
 	return NULL;
 }
 
+ListBase *get_constraint_lb (Object *ob, bConstraint *con, bPoseChannel **pchan_r)
+{
+	if(pchan_r)
+		*pchan_r= NULL;
+
+	if (ELEM(NULL, ob, con))
+		return NULL;
+
+	if((BLI_findindex(&ob->constraints, con) != -1)) {
+		return &ob->constraints;
+	}
+	else if(ob->pose) {
+		bPoseChannel *pchan;
+		for(pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
+			if((BLI_findindex(&pchan->constraints, con) != -1)) {
+
+				if(pchan_r)
+					*pchan_r= pchan;
+
+				return &pchan->constraints;
+			}
+		}
+	}
+
+	return NULL;
+}
+
 /* single constraint */
 bConstraint *get_active_constraint (Object *ob)
 {