fix: if not provided schemaComposer for convertSchemaToGraphQL() it will use global instance

Author: nodkz

package.json

@@ -39,27 +39,27 @@
   "devDependencies": {
     "babel-cli": "^6.26.0",
     "babel-core": "^6.26.0",
-    "babel-eslint": "^8.2.1",
-    "babel-jest": "^22.2.2",
+    "babel-eslint": "^8.2.2",
+    "babel-jest": "^22.4.0",
     "babel-plugin-transform-flow-strip-types": "^6.22.0",
     "babel-plugin-transform-object-rest-spread": "^6.13.0",
     "babel-plugin-transform-runtime": "^6.23.0",
     "babel-preset-env": "^1.6.1",
     "cz-conventional-changelog": "^2.1.0",
-    "eslint": "^4.17.0",
+    "eslint": "^4.18.0",
     "eslint-config-airbnb-base": "^12.1.0",
     "eslint-config-prettier": "^2.9.0",
-    "eslint-plugin-flowtype": "^2.44.0",
+    "eslint-plugin-flowtype": "^2.45.0",
     "eslint-plugin-import": "^2.8.0",
     "eslint-plugin-prettier": "^2.6.0",
     "flow-bin": "^0.65.0",
-    "graphql": "0.13.0",
-    "graphql-compose": "^3.0.3",
+    "graphql": "0.13.1",
+    "graphql-compose": "^3.0.5",
     "graphql-compose-connection": ">=3.0.0",
     "graphql-compose-pagination": ">=3.0.0",
-    "jest": "^22.3.0",
+    "jest": "^22.4.0",
     "mongodb-memory-server": "^1.7.0",
-    "mongoose": "^5.0.5",
+    "mongoose": "^5.0.6",
     "prettier": "^1.10.2",
     "request": "^2.83.0",
     "rimraf": "^2.6.2",

src/fieldsConverter.js

@@ -5,7 +5,7 @@ import mongoose from 'mongoose';
 import type { Schema, MongooseModel, MongooseSchemaField } from 'mongoose';
 import objectPath from 'object-path';
 import type { SchemaComposer, TypeComposer, EnumTypeComposer } from 'graphql-compose';
-import { upperFirst } from 'graphql-compose';
+import { upperFirst, schemaComposer as globalSchemaComposer } from 'graphql-compose';
 import type { GraphQLScalarType } from 'graphql-compose/lib/graphql';
 import GraphQLMongoID from './types/mongoid';
 
@@ -113,8 +113,10 @@ export function getFieldsFromModel(model: MongooseModel | MongoosePseudoModelT):
 export function convertModelToGraphQL(
   model: MongooseModel | MongoosePseudoModelT,
   typeName: string,
-  schemaComposer: SchemaComposer<any>
+  sc?: SchemaComposer<any>
 ): TypeComposer {
+  const schemaComposer = sc || globalSchemaComposer;
+
   // if model already has generated TypeComposer early, then return it
   if (model.schema && model.schema._gqcTypeComposer) {
     return (model.schema._gqcTypeComposer: any);
@@ -161,8 +163,10 @@ export function convertModelToGraphQL(
 export function convertSchemaToGraphQL(
   schema: Object, // MongooseModelSchemaT, TODO use Model from mongoose_v4.x.x definition when it will be public
   typeName: string,
-  schemaComposer: SchemaComposer<any>
+  sc?: SchemaComposer<any>
 ): TypeComposer {
+  const schemaComposer = sc || globalSchemaComposer;
+
   if (!typeName) {
     throw new Error('You provide empty name for type. `name` argument should be non-empty string.');
   }