Add adapter function for prepare schema type name

src/adapters/adapter.ts

@@ -27,4 +27,6 @@ export default interface Adapter {
 
   getFilterTypeName(model: Model): string;
   getInputTypeName(model: Model, action?: string): string;
+
+  prepareSchemaTypeName(name: string): string;
 }

src/adapters/builtin/default-adapter.ts

@@ -42,4 +42,8 @@ export default class DefaultAdapter implements Adapter {
   getNameForPush(model: Model): string {
     return `update${upcaseFirstLetter(model.singularName)}`;
   }
+
+  prepareSchemaTypeName(name: string): string {
+    return upcaseFirstLetter(name);
+  }
 }

src/graphql/schema.ts

@@ -61,7 +61,7 @@ export default class Schema {
   }
 
   public getType(name: string, allowNull: boolean = false): GraphQLType | null {
-    name = upcaseFirstLetter(name);
+    name = Context.getInstance().adapter.prepareSchemaTypeName(name);
     const type = this.types.get(name);
 
     if (!allowNull && !type) {