# HG changeset patch
# User Sascha L. Teichmann <teichmann@intevation.de>
# Date 1370351839 -7200
# Node ID e30d396defa5a383a231335d2b21f3a699ec0c65
# Parent  5297e173c272fb9d740303ead98c24a40ae82708
Datacage: Added function dc:get('var-name'). Returns content of variable var-name or NULL if not
defined. This works around resolving unknown variables.

diff -r 5297e173c272 -r e30d396defa5 artifacts/src/main/java/org/dive4elements/river/artifacts/datacage/templating/FunctionResolver.java
--- a/artifacts/src/main/java/org/dive4elements/river/artifacts/datacage/templating/FunctionResolver.java	Tue Jun 04 13:28:31 2013 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/datacage/templating/FunctionResolver.java	Tue Jun 04 15:17:19 2013 +0200
@@ -139,6 +139,18 @@
                 return FunctionResolver.this.buildHelper.frames.dump();
             }
         });
+
+        addFunction("get", 1, new XPathFunction() {
+            @Override
+            public Object evaluate(List args) throws XPathFunctionException {
+                Object o = args.get(0);
+                if (o instanceof String) {
+                    FunctionResolver.this.buildHelper.frames.getNull(
+                        (String)o, StackFrames.NULL);
+                }
+                return StackFrames.NULL;
+            }
+        });
     }
 
     /**