Add workflow building mode check to collection parameter handling

galaxyproject · Mar 4, 2016 · 0445fcd · 0445fcd
1 parent 97793ab
commit 0445fcd
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/galaxy/tools/parameters/basic.py b/lib/galaxy/tools/parameters/basic.py
@@ -2346,6 +2346,8 @@ def _get_select_dataset_collection_field( self, trans, history, multiple=False,
         return field
 
     def from_html( self, value, trans, other_values={} ):
+        if trans.workflow_building_mode:
+            return None
         if not value and not self.optional:
             raise ValueError( "History does not include a dataset collection of the correct type or containing the correct types of datasets" )
         if value in [None, "None"]: