Correctly skipping constraints when there was a failure.

Author: sfc-gh-dflippo

dbt_project.yml

@@ -1,6 +1,6 @@
 
 name: 'dbt_constraints'
-version: '1.0.3'
+version: '1.0.4'
 config-version: 2
 
 # These macros depend on the results and graph objects in dbt >=0.19.0

macros/create_constraints.sql

@@ -229,9 +229,9 @@
     {%- for res in results
         if res.node.config.materialized == "test"
         and res.node.unique_id == test_model.unique_id -%}
-        {%- if not res.failures -%}
-            {#- Set NORELY if we do not know if there is a test failure -#}
-            {{ return('NORELY') }}
+        {%- if res.failures == None -%}
+            {#- Set '' if we do not know if there is a test failure -#}
+            {{ return('') }}
         {%- elif res.failures > 0 -%}
             {#- Set NORELY if there is a test failure -#}
             {{ return('NORELY') }}