Improve model class of ruby-client (#1670)

* Add Model.build_from_hash

* Use Model.build_from_hash instead of Model.new.build_from_hash

* Update sample for ruby-client

* Update sample for openapi3 ruby-client

modules/openapi-generator/src/main/resources/ruby-client/api_client.mustache

@@ -204,9 +204,7 @@ module {{moduleName}}
         end
       else
         # models, e.g. Pet
-        {{moduleName}}.const_get(return_type).new.tap do |model|
-          model.build_from_hash data
-        end
+        {{moduleName}}.const_get(return_type).build_from_hash(data)
       end
     end
 

modules/openapi-generator/src/main/resources/ruby-client/base_object.mustache

@@ -1,3 +1,10 @@
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -58,8 +65,7 @@
           end
         end
       else # model
-        temp_model = {{moduleName}}.const_get(type).new
-        temp_model.build_from_hash(value)
+        {{moduleName}}.const_get(type).build_from_hash(value)
       end
     end
 

modules/openapi-generator/src/main/resources/ruby-client/partial_model_enum_class.mustache

@@ -2,6 +2,13 @@
     {{#allowableValues}}{{#enumVars}}
     {{{name}}} = {{{value}}}.freeze{{/enumVars}}{{/allowableValues}}
 
+    # Builds the enum from string
+    # @param [String] The enum value in the form of the string
+    # @return [String] The enum value
+    def self.build_from_hash(value)
+      new.build_from_hash(value)
+    end
+
     # Builds the enum from string
     # @param [String] The enum value in the form of the string
     # @return [String] The enum value
@@ -10,4 +17,4 @@
       raise "Invalid ENUM value #{value} for class #{{{classname}}}" if constantValues.empty?
       value
     end
-  end
+  end

modules/openapi-generator/src/main/resources/ruby-client/partial_model_generic.mustache

@@ -239,8 +239,7 @@
       {{#-first}}
       _any_of_found = false
       openapi_any_of.each do |_class|
-        _any_of = {{moduleName}}.const_get(_class).new
-        _any_of.build_from_hash(self.to_hash)
+        _any_of = {{moduleName}}.const_get(_class).build_from_hash(self.to_hash)
         if _any_of.valid?
           _any_of_found = true
         end
@@ -256,8 +255,7 @@
       {{#-first}}
       _one_of_found = false
       openapi_one_of.each do |_class|
-        _one_of = {{moduleName}}.const_get(_class).new
-        _one_of.build_from_hash(self.to_hash)
+        _one_of = {{moduleName}}.const_get(_class).build_from_hash(self.to_hash)
         if _one_of.valid?
           if _one_of_found?
             return false

samples/client/petstore/ruby/lib/petstore/api_client.rb

@@ -210,9 +210,7 @@ module Petstore
         end
       else
         # models, e.g. Pet
-        Petstore.const_get(return_type).new.tap do |model|
-          model.build_from_hash data
-        end
+        Petstore.const_get(return_type).build_from_hash(data)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/additional_properties_class.rb

@@ -89,6 +89,13 @@ module Petstore
       [map_property, map_of_map_property].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -146,8 +153,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/animal.rb

@@ -97,6 +97,13 @@ module Petstore
       [class_name, color].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -154,8 +161,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/api_response.rb

@@ -94,6 +94,13 @@ module Petstore
       [code, type, message].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -151,8 +158,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/array_of_array_of_number_only.rb

@@ -78,6 +78,13 @@ module Petstore
       [array_array_number].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -135,8 +142,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/array_of_number_only.rb

@@ -78,6 +78,13 @@ module Petstore
       [array_number].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -135,8 +142,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/array_test.rb

@@ -100,6 +100,13 @@ module Petstore
       [array_of_string, array_array_of_integer, array_array_of_model].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -157,8 +164,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/capitalization.rb

@@ -122,6 +122,13 @@ module Petstore
       [small_camel, capital_camel, small_snake, capital_snake, sca_eth_flow_points, att_name].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -179,8 +186,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/cat.rb

@@ -86,6 +86,13 @@ module Petstore
       [declawed].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -144,8 +151,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/category.rb

@@ -92,6 +92,13 @@ module Petstore
       [id, name].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -149,8 +156,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/class_model.rb

@@ -77,6 +77,13 @@ module Petstore
       [_class].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -134,8 +141,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/client.rb

@@ -76,6 +76,13 @@ module Petstore
       [client].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -133,8 +140,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/dog.rb

@@ -86,6 +86,13 @@ module Petstore
       [breed].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -144,8 +151,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/enum_arrays.rb

@@ -121,6 +121,13 @@ module Petstore
       [just_symbol, array_enum].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -178,8 +185,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/enum_class.rb

@@ -19,6 +19,13 @@ module Petstore
     EFG = '-efg'.freeze
     XYZ = '(xyz)'.freeze
 
+    # Builds the enum from string
+    # @param [String] The enum value in the form of the string
+    # @return [String] The enum value
+    def self.build_from_hash(value)
+      new.build_from_hash(value)
+    end
+
     # Builds the enum from string
     # @param [String] The enum value in the form of the string
     # @return [String] The enum value
@@ -28,4 +35,5 @@ module Petstore
       value
     end
   end
+
 end

samples/client/petstore/ruby/lib/petstore/models/enum_test.rb

@@ -187,6 +187,13 @@ module Petstore
       [enum_string, enum_string_required, enum_integer, enum_number, outer_enum].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -244,8 +251,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/file.rb

@@ -78,6 +78,13 @@ module Petstore
       [source_uri].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -135,8 +142,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/file_schema_test_class.rb

@@ -87,6 +87,13 @@ module Petstore
       [file, files].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -144,8 +151,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/format_test.rb

@@ -390,6 +390,13 @@ module Petstore
       [integer, int32, int64, number, float, double, string, byte, binary, date, date_time, uuid, password].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -447,8 +454,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/has_only_read_only.rb

@@ -85,6 +85,13 @@ module Petstore
       [bar, foo].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -142,8 +149,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/list.rb

@@ -76,6 +76,13 @@ module Petstore
       [_123_list].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -133,8 +140,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/map_test.rb

@@ -133,6 +133,13 @@ module Petstore
       [map_map_of_string, map_of_enum_string, direct_map, indirect_map].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -190,8 +197,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/mixed_properties_and_additional_properties_class.rb

@@ -96,6 +96,13 @@ module Petstore
       [uuid, date_time, map].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -153,8 +160,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/model200_response.rb

@@ -86,6 +86,13 @@ module Petstore
       [name, _class].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -143,8 +150,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/model_return.rb

@@ -77,6 +77,13 @@ module Petstore
       [_return].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -134,8 +141,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/name.rb

@@ -109,6 +109,13 @@ module Petstore
       [name, snake_case, property, _123_number].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -166,8 +173,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/number_only.rb

@@ -76,6 +76,13 @@ module Petstore
       [just_number].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -133,8 +140,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/order.rb

@@ -158,6 +158,13 @@ module Petstore
       [id, pet_id, quantity, ship_date, status, complete].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -215,8 +222,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/outer_composite.rb

@@ -94,6 +94,13 @@ module Petstore
       [my_number, my_string, my_boolean].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -151,8 +158,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/outer_enum.rb

@@ -19,6 +19,13 @@ module Petstore
     APPROVED = 'approved'.freeze
     DELIVERED = 'delivered'.freeze
 
+    # Builds the enum from string
+    # @param [String] The enum value in the form of the string
+    # @return [String] The enum value
+    def self.build_from_hash(value)
+      new.build_from_hash(value)
+    end
+
     # Builds the enum from string
     # @param [String] The enum value in the form of the string
     # @return [String] The enum value
@@ -28,4 +35,5 @@ module Petstore
       value
     end
   end
+
 end

samples/client/petstore/ruby/lib/petstore/models/pet.rb

@@ -170,6 +170,13 @@ module Petstore
       [id, category, name, photo_urls, tags, status].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -227,8 +234,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/read_only_first.rb

@@ -85,6 +85,13 @@ module Petstore
       [bar, baz].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -142,8 +149,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/special_model_name.rb

@@ -76,6 +76,13 @@ module Petstore
       [special_property_name].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -133,8 +140,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/tag.rb

@@ -85,6 +85,13 @@ module Petstore
       [id, name].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -142,8 +149,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/client/petstore/ruby/lib/petstore/models/user.rb

@@ -140,6 +140,13 @@ module Petstore
       [id, username, first_name, last_name, email, password, phone, user_status].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -197,8 +204,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/api_client.rb

@@ -210,9 +210,7 @@ module Petstore
         end
       else
         # models, e.g. Pet
-        Petstore.const_get(return_type).new.tap do |model|
-          model.build_from_hash data
-        end
+        Petstore.const_get(return_type).build_from_hash(data)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/additional_properties_class.rb

@@ -89,6 +89,13 @@ module Petstore
       [map_property, map_of_map_property].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -146,8 +153,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/animal.rb

@@ -97,6 +97,13 @@ module Petstore
       [class_name, color].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -154,8 +161,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/api_response.rb

@@ -94,6 +94,13 @@ module Petstore
       [code, type, message].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -151,8 +158,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/array_of_array_of_number_only.rb

@@ -78,6 +78,13 @@ module Petstore
       [array_array_number].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -135,8 +142,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/array_of_number_only.rb

@@ -78,6 +78,13 @@ module Petstore
       [array_number].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -135,8 +142,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/array_test.rb

@@ -100,6 +100,13 @@ module Petstore
       [array_of_string, array_array_of_integer, array_array_of_model].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -157,8 +164,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/capitalization.rb

@@ -122,6 +122,13 @@ module Petstore
       [small_camel, capital_camel, small_snake, capital_snake, sca_eth_flow_points, att_name].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -179,8 +186,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/cat.rb

@@ -86,6 +86,13 @@ module Petstore
       [declawed].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -144,8 +151,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/category.rb

@@ -92,6 +92,13 @@ module Petstore
       [id, name].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -149,8 +156,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/class_model.rb

@@ -77,6 +77,13 @@ module Petstore
       [_class].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -134,8 +141,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/client.rb

@@ -76,6 +76,13 @@ module Petstore
       [client].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -133,8 +140,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/dog.rb

@@ -86,6 +86,13 @@ module Petstore
       [breed].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -144,8 +151,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/enum_arrays.rb

@@ -121,6 +121,13 @@ module Petstore
       [just_symbol, array_enum].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -178,8 +185,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/enum_class.rb

@@ -19,6 +19,13 @@ module Petstore
     EFG = '-efg'.freeze
     XYZ = '(xyz)'.freeze
 
+    # Builds the enum from string
+    # @param [String] The enum value in the form of the string
+    # @return [String] The enum value
+    def self.build_from_hash(value)
+      new.build_from_hash(value)
+    end
+
     # Builds the enum from string
     # @param [String] The enum value in the form of the string
     # @return [String] The enum value
@@ -28,4 +35,5 @@ module Petstore
       value
     end
   end
+
 end

samples/openapi3/client/petstore/ruby/lib/petstore/models/enum_test.rb

@@ -187,6 +187,13 @@ module Petstore
       [enum_string, enum_string_required, enum_integer, enum_number, outer_enum].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -244,8 +251,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/file.rb

@@ -78,6 +78,13 @@ module Petstore
       [source_uri].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -135,8 +142,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/file_schema_test_class.rb

@@ -87,6 +87,13 @@ module Petstore
       [file, files].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -144,8 +151,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/foo.rb

@@ -78,6 +78,13 @@ module Petstore
       [bar].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -135,8 +142,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/format_test.rb

@@ -421,6 +421,13 @@ module Petstore
       [integer, int32, int64, number, float, double, string, byte, binary, date, date_time, uuid, password, pattern_with_digits, pattern_with_digits_and_delimiter].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -478,8 +485,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/has_only_read_only.rb

@@ -85,6 +85,13 @@ module Petstore
       [bar, foo].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -142,8 +149,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/inline_response_default.rb

@@ -76,6 +76,13 @@ module Petstore
       [string].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -133,8 +140,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/list.rb

@@ -76,6 +76,13 @@ module Petstore
       [_123_list].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -133,8 +140,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/map_test.rb

@@ -133,6 +133,13 @@ module Petstore
       [map_map_of_string, map_of_enum_string, direct_map, indirect_map].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -190,8 +197,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/mixed_properties_and_additional_properties_class.rb

@@ -96,6 +96,13 @@ module Petstore
       [uuid, date_time, map].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -153,8 +160,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/model200_response.rb

@@ -86,6 +86,13 @@ module Petstore
       [name, _class].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -143,8 +150,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/model_return.rb

@@ -77,6 +77,13 @@ module Petstore
       [_return].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -134,8 +141,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/name.rb

@@ -109,6 +109,13 @@ module Petstore
       [name, snake_case, property, _123_number].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -166,8 +173,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/number_only.rb

@@ -76,6 +76,13 @@ module Petstore
       [just_number].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -133,8 +140,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/order.rb

@@ -158,6 +158,13 @@ module Petstore
       [id, pet_id, quantity, ship_date, status, complete].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -215,8 +222,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/outer_composite.rb

@@ -94,6 +94,13 @@ module Petstore
       [my_number, my_string, my_boolean].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -151,8 +158,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/outer_enum.rb

@@ -19,6 +19,13 @@ module Petstore
     APPROVED = 'approved'.freeze
     DELIVERED = 'delivered'.freeze
 
+    # Builds the enum from string
+    # @param [String] The enum value in the form of the string
+    # @return [String] The enum value
+    def self.build_from_hash(value)
+      new.build_from_hash(value)
+    end
+
     # Builds the enum from string
     # @param [String] The enum value in the form of the string
     # @return [String] The enum value
@@ -28,4 +35,5 @@ module Petstore
       value
     end
   end
+
 end

samples/openapi3/client/petstore/ruby/lib/petstore/models/pet.rb

@@ -170,6 +170,13 @@ module Petstore
       [id, category, name, photo_urls, tags, status].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -227,8 +234,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/read_only_first.rb

@@ -85,6 +85,13 @@ module Petstore
       [bar, baz].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -142,8 +149,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/special_model_name.rb

@@ -76,6 +76,13 @@ module Petstore
       [special_property_name].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -133,8 +140,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/tag.rb

@@ -85,6 +85,13 @@ module Petstore
       [id, name].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -142,8 +149,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end
 

samples/openapi3/client/petstore/ruby/lib/petstore/models/user.rb

@@ -140,6 +140,13 @@ module Petstore
       [id, username, first_name, last_name, email, password, phone, user_status].hash
     end
 
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
     # Builds the object from hash
     # @param [Hash] attributes Model attributes in the form of hash
     # @return [Object] Returns the model itself
@@ -197,8 +204,7 @@ module Petstore
           end
         end
       else # model
-        temp_model = Petstore.const_get(type).new
-        temp_model.build_from_hash(value)
+        Petstore.const_get(type).build_from_hash(value)
       end
     end