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[ruby] Introduce ApiModelBase (#22052)
The Ruby code that is generated copies numerous methods into every model. This creates bloat both in file size and run-time memory usage. This commit introduces a base class for all models to store common methods. This commit's focus is only on static methods that do not change between models.
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‎modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/RubyClientCodegen.java‎

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@@ -271,6 +271,7 @@ public void processOpts() {
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supportingFiles.add(new SupportingFile("gem.mustache", libFolder, gemName + ".rb"));
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String gemFolder = libFolder + File.separator + gemName;
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supportingFiles.add(new SupportingFile("api_error.mustache", gemFolder, "api_error.rb"));
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supportingFiles.add(new SupportingFile("api_model_base.mustache", gemFolder, "api_model_base.rb"));
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supportingFiles.add(new SupportingFile("version.mustache", gemFolder, "version.rb"));
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supportingFiles.add(new SupportingFile("README.mustache", "", "README.md"));
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supportingFiles.add(new SupportingFile("git_push.sh.mustache", "", "git_push.sh"));

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

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=begin
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{{> api_info}}
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=end
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module {{moduleName}}
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class ApiModelBase
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# Deserializes the data based on type
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# @param string type Data type
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# @param string value Value to be deserialized
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# @return [Object] Deserialized data
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def self._deserialize(type, value)
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case type.to_sym
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when :Time
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Time.parse(value)
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when :Date
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Date.parse(value)
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when :String
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value.to_s
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when :Integer
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value.to_i
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when :Float
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value.to_f
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when :Boolean
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if value.to_s =~ /\A(true|t|yes|y|1)\z/i
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true
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else
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false
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end
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when :Object
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# generic object (usually a Hash), return directly
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value
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when /\AArray<(?<inner_type>.+)>\z/
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inner_type = Regexp.last_match[:inner_type]
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value.map { |v| _deserialize(inner_type, v) }
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when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
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k_type = Regexp.last_match[:k_type]
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v_type = Regexp.last_match[:v_type]
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{}.tap do |hash|
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value.each do |k, v|
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hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
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end
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end
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else # model
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# models (e.g. Pet) or oneOf
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klass = {{moduleName}}.const_get(type)
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klass.respond_to?(:openapi_any_of) || klass.respond_to?(:openapi_one_of) ? klass.build(value) : klass.build_from_hash(value)
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end
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end
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# Returns the string representation of the object
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# @return [String] String presentation of the object
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def to_s
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to_hash.to_s
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end
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# to_body is an alias to to_hash (backward compatibility)
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# @return [Hash] Returns the object in the form of hash
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def to_body
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to_hash
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end
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# Outputs non-array value in the form of hash
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# For object, use to_hash. Otherwise, just return the value
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# @param [Object] value Any valid value
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# @return [Hash] Returns the value in the form of hash
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def _to_hash(value)
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if value.is_a?(Array)
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value.compact.map { |v| _to_hash(v) }
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elsif value.is_a?(Hash)
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{}.tap do |hash|
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value.each { |k, v| hash[k] = _to_hash(v) }
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end
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elsif value.respond_to? :to_hash
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value.to_hash
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else
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value
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end
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end
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end
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end

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

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new(transformed_hash)
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end
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# Deserializes the data based on type
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# @param string type Data type
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# @param string value Value to be deserialized
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# @return [Object] Deserialized data
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def self._deserialize(type, value)
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case type.to_sym
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when :Time
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Time.parse(value)
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when :Date
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Date.parse(value)
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when :String
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value.to_s
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when :Integer
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value.to_i
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when :Float
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value.to_f
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when :Boolean
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if value.to_s =~ /\A(true|t|yes|y|1)\z/i
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true
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else
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false
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end
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when :Object
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# generic object (usually a Hash), return directly
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value
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when /\AArray<(?<inner_type>.+)>\z/
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inner_type = Regexp.last_match[:inner_type]
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value.map { |v| _deserialize(inner_type, v) }
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when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
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k_type = Regexp.last_match[:k_type]
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v_type = Regexp.last_match[:v_type]
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{}.tap do |hash|
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value.each do |k, v|
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hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
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end
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end
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else # model
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# models (e.g. Pet) or oneOf
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klass = {{moduleName}}.const_get(type)
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klass.respond_to?(:openapi_any_of) || klass.respond_to?(:openapi_one_of) ? klass.build(value) : klass.build_from_hash(value)
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end
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end
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# Returns the string representation of the object
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# @return [String] String presentation of the object
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def to_s
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to_hash.to_s
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end
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# to_body is an alias to to_hash (backward compatibility)
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# @return [Hash] Returns the object in the form of hash
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def to_body
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to_hash
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end
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# Returns the object in the form of hash
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# @return [Hash] Returns the object in the form of hash
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def to_hash
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end
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hash
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end
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# Outputs non-array value in the form of hash
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# For object, use to_hash. Otherwise, just return the value
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# @param [Object] value Any valid value
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# @return [Hash] Returns the value in the form of hash
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def _to_hash(value)
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if value.is_a?(Array)
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value.compact.map { |v| _to_hash(v) }
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elsif value.is_a?(Hash)
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{}.tap do |hash|
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value.each { |k, v| hash[k] = _to_hash(v) }
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end
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elsif value.respond_to? :to_hash
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value.to_hash
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else
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value
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end
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end

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

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# Common files
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require '{{gemName}}/api_client'
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require '{{gemName}}/api_error'
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require '{{gemName}}/api_model_base'
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require '{{gemName}}/version'
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require '{{gemName}}/configuration'
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‎modules/openapi-generator/src/main/resources/ruby-client/partial_model_generic.mustache‎

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{{#description}}
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# {{{.}}}
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{{/description}}
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class {{classname}}{{#parent}} < {{{.}}}{{/parent}}
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class {{classname}}{{#parent}} < {{{.}}}{{/parent}}{{^parent}} < ApiModelBase{{/parent}}
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{{#vars}}
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{{#description}}
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# {{{.}}}

‎samples/client/echo_api/ruby-faraday/.openapi-generator/FILES‎

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lib/openapi_client/api/query_api.rb
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lib/openapi_client/api_client.rb
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lib/openapi_client/api_error.rb
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lib/openapi_client/api_model_base.rb
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lib/openapi_client/configuration.rb
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lib/openapi_client/models/bird.rb
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lib/openapi_client/models/category.rb

‎samples/client/echo_api/ruby-faraday/lib/openapi_client.rb‎

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# Common files
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require 'openapi_client/api_client'
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require 'openapi_client/api_error'
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require 'openapi_client/api_model_base'
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require 'openapi_client/version'
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require 'openapi_client/configuration'
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‎samples/client/echo_api/ruby-faraday/lib/openapi_client/api_model_base.rb‎

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=begin
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#Echo Server API
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#Echo Server API
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The version of the OpenAPI document: 0.1.0
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Contact: [email protected]
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Generated by: https://openapi-generator.tech
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Generator version: 7.17.0-SNAPSHOT
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=end
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module OpenapiClient
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class ApiModelBase
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# Deserializes the data based on type
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# @param string type Data type
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# @param string value Value to be deserialized
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# @return [Object] Deserialized data
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def self._deserialize(type, value)
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case type.to_sym
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when :Time
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Time.parse(value)
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when :Date
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Date.parse(value)
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when :String
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value.to_s
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when :Integer
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value.to_i
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when :Float
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value.to_f
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when :Boolean
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if value.to_s =~ /\A(true|t|yes|y|1)\z/i
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true
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else
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false
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end
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when :Object
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# generic object (usually a Hash), return directly
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value
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when /\AArray<(?<inner_type>.+)>\z/
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inner_type = Regexp.last_match[:inner_type]
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value.map { |v| _deserialize(inner_type, v) }
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when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
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k_type = Regexp.last_match[:k_type]
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v_type = Regexp.last_match[:v_type]
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{}.tap do |hash|
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value.each do |k, v|
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hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
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end
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end
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else # model
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# models (e.g. Pet) or oneOf
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klass = OpenapiClient.const_get(type)
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klass.respond_to?(:openapi_any_of) || klass.respond_to?(:openapi_one_of) ? klass.build(value) : klass.build_from_hash(value)
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end
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end
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# Returns the string representation of the object
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# @return [String] String presentation of the object
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def to_s
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to_hash.to_s
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end
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# to_body is an alias to to_hash (backward compatibility)
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# @return [Hash] Returns the object in the form of hash
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def to_body
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to_hash
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end
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# Outputs non-array value in the form of hash
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# For object, use to_hash. Otherwise, just return the value
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# @param [Object] value Any valid value
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# @return [Hash] Returns the value in the form of hash
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def _to_hash(value)
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if value.is_a?(Array)
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value.compact.map { |v| _to_hash(v) }
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elsif value.is_a?(Hash)
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{}.tap do |hash|
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value.each { |k, v| hash[k] = _to_hash(v) }
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end
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elsif value.respond_to? :to_hash
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value.to_hash
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else
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value
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end
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end
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end
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end

‎samples/client/echo_api/ruby-faraday/lib/openapi_client/models/bird.rb‎

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require 'time'
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module OpenapiClient
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class Bird
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class Bird < ApiModelBase
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attr_accessor :size
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attr_accessor :color
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new(transformed_hash)
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end
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# Deserializes the data based on type
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# @param string type Data type
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# @param string value Value to be deserialized
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# @return [Object] Deserialized data
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def self._deserialize(type, value)
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case type.to_sym
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when :Time
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Time.parse(value)
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when :Date
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Date.parse(value)
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when :String
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value.to_s
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when :Integer
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value.to_i
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when :Float
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value.to_f
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when :Boolean
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if value.to_s =~ /\A(true|t|yes|y|1)\z/i
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true
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else
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false
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end
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when :Object
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# generic object (usually a Hash), return directly
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value
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when /\AArray<(?<inner_type>.+)>\z/
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inner_type = Regexp.last_match[:inner_type]
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value.map { |v| _deserialize(inner_type, v) }
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when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
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k_type = Regexp.last_match[:k_type]
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v_type = Regexp.last_match[:v_type]
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{}.tap do |hash|
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value.each do |k, v|
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hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
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end
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end
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else # model
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# models (e.g. Pet) or oneOf
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klass = OpenapiClient.const_get(type)
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klass.respond_to?(:openapi_any_of) || klass.respond_to?(:openapi_one_of) ? klass.build(value) : klass.build_from_hash(value)
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end
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end
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# Returns the string representation of the object
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# @return [String] String presentation of the object
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def to_s
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to_hash.to_s
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end
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# to_body is an alias to to_hash (backward compatibility)
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# @return [Hash] Returns the object in the form of hash
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def to_body
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to_hash
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end
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# Returns the object in the form of hash
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# @return [Hash] Returns the object in the form of hash
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def to_hash
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hash
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end
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# Outputs non-array value in the form of hash
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# For object, use to_hash. Otherwise, just return the value
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# @param [Object] value Any valid value
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# @return [Hash] Returns the value in the form of hash
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def _to_hash(value)
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if value.is_a?(Array)
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value.compact.map { |v| _to_hash(v) }
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elsif value.is_a?(Hash)
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{}.tap do |hash|
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value.each { |k, v| hash[k] = _to_hash(v) }
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end
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elsif value.respond_to? :to_hash
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value.to_hash
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else
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value
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end
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end
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end
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end

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