Fixed minor bug with duplicate dependencies being added to the workflow.

chipathlon/workflow_module.py

@@ -254,7 +254,10 @@ class WorkflowModule(object):
                         master_jobs[param_dict["name"]] = job
                     for logical_name, param_dict in job_inputs.iteritems():
                         if param_dict["name"] in master_jobs:
-                            dax.depends(child=job, parent=master_jobs[param_dict["name"]])
+                            dep = Dependency(child=job, parent=master_jobs[param_dict["name"]])
+                            # Prevent duplicate dependencies from being created
+                            if not dax.hasDependency(dep):
+                                dax.addDependency(dep)
         else:
             print msg
         return