Filter out tests in graph projections

Author: JohT

cypher/Dependencies_Projection/Dependencies_0_Prepare_Projection.cypher

@@ -0,0 +1,8 @@
+// Prepare projection by e.g. filling in default values for missing properties
+
+ MATCH (source)-[DEPENDS_ON]->(target)
+ WHERE $dependencies_projection_node IN labels(source)
+   AND $dependencies_projection_node IN labels(target)
+   SET source.testMarkerInteger = coalesce(source.testMarkerInteger, 0)
+      ,target.testMarkerInteger = coalesce(target.testMarkerInteger, 0)
+RETURN count(*) AS numberOfDependencies

cypher/Dependencies_Projection/Dependencies_3_Create_Projection.cypher

@@ -5,7 +5,8 @@
     $dependencies_projection_node, 
       'DEPENDS_ON', {
         relationshipProperties: [$dependencies_projection_weight_property],
-        nodeProperties: ['incomingDependencies', 'outgoingDependencies']
-  })
+        nodeProperties: ['incomingDependencies', 'outgoingDependencies', 'testMarkerInteger']
+      }
+  )
  YIELD graphName, nodeCount, relationshipCount
 RETURN graphName, nodeCount, relationshipCount

cypher/Dependencies_Projection/Dependencies_3b_Create_Multi_Relationship_Projection.cypher

@@ -16,7 +16,7 @@
             defaultValue: 1.0
           }
         },
-        nodeProperties: ['incomingDependencies', 'outgoingDependencies']
+        nodeProperties: ['incomingDependencies', 'outgoingDependencies', 'testMarkerInteger']
     }
   )
  YIELD graphName, nodeCount, relationshipCount

cypher/Dependencies_Projection/Dependencies_4_Create_Undirected_Projection.cypher

@@ -10,7 +10,7 @@ CALL gds.graph.project(
     },
     {
         relationshipProperties: [$dependencies_projection_weight_property],
-        nodeProperties: ['incomingDependencies', 'outgoingDependencies']
+        nodeProperties: ['incomingDependencies', 'outgoingDependencies', 'testMarkerInteger']
     }
 )
  YIELD graphName, nodeCount, relationshipCount

cypher/Dependencies_Projection/Dependencies_5_Create_Subgraph.cypher

@@ -3,7 +3,7 @@
 CALL gds.graph.filter(
   $dependencies_projection + '-cleaned',
   $dependencies_projection,
-  'n.outgoingDependencies > 0 OR n.incomingDependencies > 0',
+  'n.testMarkerInteger = 0 AND (n.outgoingDependencies > 0 OR n.incomingDependencies > 0)',
   '*'
 )
  YIELD graphName, fromGraphName, nodeCount, relationshipCount, nodeFilter

scripts/projectionFunctions.sh

@@ -137,6 +137,7 @@ createDirectedDependencyProjection() {
         logNoDataForProjection "${@}"
         return 1
     fi
+    execute_cypher "${PROJECTION_CYPHER_DIR}/Dependencies_0_Prepare_Projection.cypher" "${@}"
     execute_cypher "${PROJECTION_CYPHER_DIR}/Dependencies_1_Delete_Projection.cypher" "${@}" >/dev/null
     execute_cypher "${PROJECTION_CYPHER_DIR}/Dependencies_2_Delete_Subgraph.cypher" "${@}" >/dev/null
     execute_cypher "${PROJECTION_CYPHER_DIR}/Dependencies_3_Create_Projection.cypher" "${@}"
@@ -175,6 +176,7 @@ createUndirectedDependencyProjection() {
     if [ "${projectionCheckResult}" -lt 1 ]; then
         return 1
     fi
+    execute_cypher "${PROJECTION_CYPHER_DIR}/Dependencies_0_Prepare_Projection.cypher" "${@}"
     execute_cypher "${PROJECTION_CYPHER_DIR}/Dependencies_1_Delete_Projection.cypher" "${@}" >/dev/null
     execute_cypher "${PROJECTION_CYPHER_DIR}/Dependencies_2_Delete_Subgraph.cypher" "${@}" >/dev/null
     execute_cypher "${PROJECTION_CYPHER_DIR}/Dependencies_4_Create_Undirected_Projection.cypher" "${@}"