Use "no namespace" as placeholder for empty namespaces

Author: JohT

cypher/External_Dependencies/External_namespace_usage_overall_for_Typescript.cypher

@@ -12,18 +12,18 @@ UNWIND internalElementList AS internalElement
  MATCH (externalModule:ExternalModule)-[:EXPORTS]->(externalDeclaration)
   WITH allInternalElements
       ,allModules
-      ,externalModule.namespace                         AS externalNamespaceName
-      ,count(DISTINCT internalModule.globalFqn)         AS numberOfExternalCallerModules
-      ,count(DISTINCT internalElement.globalFqn)        AS numberOfExternalCallerElements
-      ,count(externalDependency)                        AS numberOfExternalDeclarationCalls
-      ,sum(externalDependency.cardinality)              AS numberOfExternalDeclarationCallsWeighted
+      ,coalesce(nullif(externalModule.namespace, ''), 'no namespace') AS externalNamespaceName
+      ,count(DISTINCT internalModule.globalFqn)      AS numberOfExternalCallerModules
+      ,count(DISTINCT internalElement.globalFqn)     AS numberOfExternalCallerElements
+      ,count(externalDependency)                     AS numberOfExternalDeclarationCalls
+      ,sum(externalDependency.cardinality)           AS numberOfExternalDeclarationCallsWeighted
       ,collect('<' + internalElement.name 
              + '> of module <'
              + internalModule.name
              + '> imports <'  
              + externalDeclaration.name
              + '> from external namespace <'
-             + externalModule.namespace + '>')[0..4]    AS exampleStories
+             + externalModule.namespace + '>')[0..4] AS exampleStories
 RETURN externalNamespaceName
       ,numberOfExternalCallerModules
       ,numberOfExternalCallerElements

cypher/External_Dependencies/External_namespace_usage_per_internal_module_sorted_for_Typescript.cypher

@@ -22,7 +22,7 @@ UNWIND internalElementList AS internalElement
       ,internalModuleName
       ,internalElement.globalFqn     AS fullInternalElementName
       ,internalElement.name          AS internalElementName
-      ,externalModule.namespace      AS externalNamespaceName
+      ,coalesce(nullif(externalModule.namespace, ''), 'no namespace') AS externalNamespaceName
       ,externalDeclaration.name      AS externalDeclarationName
   WITH numberOfAllElementsInInternalModule
       ,numberOfAllExternalDeclarationsUsedInInternalModule

cypher/External_Dependencies/External_namespace_usage_spread_for_Typescript.cypher

@@ -15,7 +15,7 @@ UNWIND internalElementList AS internalElement
  MATCH (externalModule:TS:ExternalModule)-[:EXPORTS]->(externalDeclaration)
   WITH internalModulesCountOverall
       ,internalElementsCountOverall
-      ,externalModule.namespace                               AS externalModuleNamespace
+      ,coalesce(nullif(externalModule.namespace, ''), 'no namespace') AS externalModuleNamespace
       ,coalesce(nullIf(internalModule.namespace, '') + '/' + internalModule.name, internalModule.name) AS internalModuleName
 
       // Gathering counts for every internal element and the external module it uses