resolves issue #123

keski · keski · commit c90c986b6404 · 2020-10-13T09:40:10.000+02:00
diff --git a/graphql-server/drivers/arangodb/driver.js b/graphql-server/drivers/arangodb/driver.js
@@ -1249,7 +1249,7 @@ function validateEdge(ctxt, source, sourceType, sourceField, target, targetType,
  */
 function exists(ctxt, id, typeOrInterface, schema) {
     let aqlCollectionVars = [];
-    if (graphql.isInterfaceType(typeOrInterface)) {
+    if (graphql.isInterfaceType(typeOrInterface) || graphql.isUnionType(typeOrInterface)) {
         for (let possibleType of Object.values(schema.getPossibleTypes(typeOrInterface))) {
             aqlCollectionVars.push(asAQLVar(getCollectionVar(possibleType.name)));
         }

Original file line number	Diff line number	Diff line change
`@@ -1249,7 +1249,7 @@ function validateEdge(ctxt, source, sourceType, sourceField, target, targetType,`
`1249`	`1249`	`*/`
`1250`	`1250`	`function exists(ctxt, id, typeOrInterface, schema) {`
`1251`	`1251`	`let aqlCollectionVars = [];`
`1252`		`- if (graphql.isInterfaceType(typeOrInterface)) {`
	`1252`	`+ if (graphql.isInterfaceType(typeOrInterface) \|\| graphql.isUnionType(typeOrInterface)) {`
`1253`	`1253`	`for (let possibleType of Object.values(schema.getPossibleTypes(typeOrInterface))) {`
`1254`	`1254`	`aqlCollectionVars.push(asAQLVar(getCollectionVar(possibleType.name)));`
`1255`	`1255`	`}`