prevent nil

MVMCore/MVMCore/Models/Model/ModelRegistry.swift

@@ -100,36 +100,13 @@ extension KeyedDecodingContainer where Key: CodingKey {
             }
             i += 1
         }
-        return models.count > 0 ? models : nil
+        return models
     }
     
     public func decodeArray<C:CodingKey>(codingKey: KeyedDecodingContainer<K>.Key, typeCodingKey: C) throws -> [Model] {
-        var unkeyedContainer: UnkeyedDecodingContainer?
+        guard let models: [Model] = try decodeArrayIfPresent(codingKey: codingKey, typeCodingKey: typeCodingKey) else {
-        do {
-            unkeyedContainer = try nestedUnkeyedContainer(forKey: codingKey)
-        } catch {
             throw ModelRegistry.Error.decoderErrorObjectNotPresent
         }
-        var otherUnkeyedContainer = try nestedUnkeyedContainer(forKey: codingKey)
-        var attributes = [Model.Type]()
-        while !unkeyedContainer!.isAtEnd {
-            let meta = try unkeyedContainer!.nestedContainer(keyedBy: C.self)
-            let type = try meta.decode(String.self, forKey: typeCodingKey)
-            //get the type
-            guard let found = ModelRegistry.types[type] else {
-                throw ModelRegistry.Error.decoderErrorModelNotMapped
-            }
-            attributes.append(found)
-        }
-        var i = 0
-        var models = [Model]()
-        while !otherUnkeyedContainer.isAtEnd {
-            let foundModel = attributes[i]
-            if let model = try foundModel.mvmdecode(unkeyedContainer: &otherUnkeyedContainer) {
-                models.append(model)
-            }
-            i += 1
-        }
         return models
     }
 }