Class: Parametron::ParamsValidator
- Inherits:
-
Object
- Object
- Parametron::ParamsValidator
- Defined in:
- lib/parametron/params_validator.rb
Defined Under Namespace
Classes: GenericParameter, OptionalParameter, RequiredParameter
Instance Attribute Summary collapse
-
#optional_vals ⇒ Object
Returns the value of attribute optional_vals.
-
#required_vals ⇒ Object
Returns the value of attribute required_vals.
Instance Method Summary collapse
-
#initialize(opts) ⇒ ParamsValidator
constructor
A new instance of ParamsValidator.
- #optional(name, opts = {}) ⇒ Object
- #required(name, opts = {}) ⇒ Object
- #validate!(obj, params) ⇒ Object
Constructor Details
#initialize(opts) ⇒ ParamsValidator
Returns a new instance of ParamsValidator.
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# File 'lib/parametron/params_validator.rb', line 5 def initialize(opts) @reject_unexpected = opts.fetch(:reject, true) @raise_on_excess = opts.fetch(:strict, false) self.required_vals = [] self.optional_vals = [] end |
Instance Attribute Details
#optional_vals ⇒ Object
Returns the value of attribute optional_vals.
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# File 'lib/parametron/params_validator.rb', line 3 def optional_vals @optional_vals end |
#required_vals ⇒ Object
Returns the value of attribute required_vals.
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# File 'lib/parametron/params_validator.rb', line 3 def required_vals @required_vals end |
Instance Method Details
#optional(name, opts = {}) ⇒ Object
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# File 'lib/parametron/params_validator.rb', line 12 def optional(name, opts={}) default = opts.delete(:default) validator = opts.delete(:validator) as = opts.delete(:as) raise Parametron::ErrorMethodParams.new("Not available param: #{opts.inspect}") unless opts.empty? self.optional_vals << OptionalParameter.new(name.to_s, default, validator, as) end |
#required(name, opts = {}) ⇒ Object
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# File 'lib/parametron/params_validator.rb', line 20 def required(name, opts={}) default = opts.delete(:default) validator = opts.delete(:validator) as = opts.delete(:as) raise Parametron::ErrorMethodParams.new("Not available param: #{opts.inspect}") unless opts.empty? self.required_vals << RequiredParameter.new(name.to_s, default, validator, as) end |
#validate!(obj, params) ⇒ Object
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# File 'lib/parametron/params_validator.rb', line 28 def validate!(obj, params) obj.validation_error_cause = [] normalized_param_keys = params.keys.map(&:to_s).sort exceed_params = normalized_param_keys - valid_keys if exceed_params.any? exceed_params.each do |par| obj.validation_error_cause << [par, params[par.to_sym]] end raise Parametron::ExcessParameter.new(exceed_params.to_s) if @raise_on_excess end key_common = normalized_param_keys & required_keys if key_common != required_keys missing = required_keys - key_common obj.validation_error_cause << missing raise Parametron::RequiredParamError.new(missing) end params.each do |k, v| key = k.to_s unless valid_keys.include?(key) params.delete(key) if @reject_unexpected next end validators.find{|val| val.name == key}.tap do |curr_val| unless curr_val.valid?(v) obj.validation_error_cause << [key, v] raise Parametron::MalformedParams.new(key) end end end end |