style: Improve error message for missing mapReduceOptions on instance

SierraSoftworks · May 29, 2017 · f5e543f · f5e543f
1 parent 23a3d1a
commit f5e543f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/Model.ts b/lib/Model.ts
@@ -731,7 +731,7 @@ export class Model<TDocument extends { _id?: any }, TInstance> {
                 if (options.out && options.out == "inline")
                     return reject(new Error("Expected a non-inline mapReduce output mode for this method signature"));
                 if (!instanceType.mapReduceOptions)
-                    return reject(new Error("mapReduceOptions not provided"));
+                    return reject(new Error("Expected mapReduceOptions to be specified on the instance type"));
                 let opts = <MongoDB.MapReduceOptions>options;
                 let out : {[op: string]: string} = {};
                 out[(<string>options.out)] = instanceType.collection;