Make sure nested/referenced models in array are mapped to swagger

Signed-off-by: Clark Wang <clark.wangs@gmail.com>

lib/model-helper.js

@@ -72,10 +72,18 @@ var modelHelper = module.exports = {
 
       var propType = def.properties[key].type;
       if (typeof propType === 'function' && propType.modelName) {
-        if (referencedModels.indexOf(m) === -1) {
+        if (referencedModels.indexOf(propType) === -1) {
           referencedModels.push(propType);
         }
       }
+      if (Array.isArray(propType) && propType.length) {
+        var itemType = propType[0];
+        if (typeof itemType === 'function' && itemType.modelName) {
+          if (referencedModels.indexOf(itemType) === -1) {
+            referencedModels.push(itemType);
+          }
+        }
+      }
     });
 
     out[name] = {

test/model-helper.test.js

@@ -153,6 +153,17 @@ describe('model-helper', function() {
       expect(defs).has.property('Model3');
       expect(defs).has.property('Model4');
     });
+
+    it('should include nesting models in array', function() {
+      var Model6 = loopback.createModel('Model6', {street: String});
+      var Model5 = loopback.createModel('Model5', {
+        str: String, // 'string'
+        addresses: [Model6]
+      });
+      var defs = modelHelper.generateModelDefinition(Model5, {});
+      expect(defs).has.property('Model5');
+      expect(defs).has.property('Model6');
+    });
   });
 
   describe('hidden properties', function() {