Support walking both inverse and forward dependency grahps

diff --git a/planetstack/dependency_walker.py b/planetstack/dependency_walker.py
index a4e9dc8..ca1959e 100755 (executable)
--- a/planetstack/dependency_walker.py
+++ b/planetstack/dependency_walker.py
@@ -37,6 +37,13 @@ def plural(name):
                return name+'s'
 
 
+def walk_deps(fn, object):
+       model = object.__class__.__name__
+       try:    
+               deps = dependencies[model]
+       except:
+               deps = []
+       __walk_deps(fn, object, deps)
 
 def walk_inv_deps(fn, object):
        model = object.__class__.__name__
@@ -44,6 +51,10 @@ def walk_inv_deps(fn, object):
                deps = inv_dependencies[model]
        except:
                deps = []
+       __walk_deps(fn, object, deps)
+
+def __walk_deps(fn, object, deps):
+       model = object.__class__.__name__
 
        for dep in deps:
                #print "Checking dep %s"%dep