Class: React::Validator

Inherits:
Object
  • Object
show all
Defined in:
lib/react/validator.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Validator

Returns a new instance of Validator.



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# File 'lib/react/validator.rb', line 9

def initialize
  @rules = {}
end

Class Method Details

.build(&block) ⇒ Object 



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# File 'lib/react/validator.rb', line 3

def self.build(&block)
  validator = self.new
  validator.instance_eval(&block)
  validator
end

Instance Method Details

#default_props ⇒ Object 



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# File 'lib/react/validator.rb', line 59

def default_props
  @rules
  .select {|key, value| value.keys.include?("default") }
  .inject({}) {|memo, (k,v)| memo[k] = v[:default]; memo}
end

#optional(prop_name, options = {}) ⇒ Object 



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# File 'lib/react/validator.rb', line 19

def optional(prop_name, options = {})
  rule = options
  options[:required] = false
  @rules[prop_name] = options
end

#requires(prop_name, options = {}) ⇒ Object 



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# File 'lib/react/validator.rb', line 13

def requires(prop_name, options = {})
  rule = options
  options[:required] = true
  @rules[prop_name] = options
end

#validate(props) ⇒ Object 



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# File 'lib/react/validator.rb', line 25

def validate(props)
  errors = []
  props.keys.each do |prop_name|
    errors <<  "Provided prop `#{prop_name}` not specified in spec"  if @rules[prop_name] == nil
  end

  props = props.select {|key| @rules.keys.include?(key) }

  # requires or not
  (@rules.keys - props.keys).each do |prop_name|
    errors << "Required prop `#{prop_name}` was not specified" if @rules[prop_name][:required]
  end

  # type
  props.each do |prop_name, value|
    if klass = @rules[prop_name][:type]
      if klass.is_a?(Array)
        errors <<  "Provided prop `#{prop_name}` was not an Array of the specified type `#{klass[0]}`" unless value.all?{ |ele| ele.is_a?(klass[0]) }
      else
        errors <<  "Provided prop `#{prop_name}` was not the specified type `#{klass}`" unless value.is_a?(klass)
      end
    end
  end

  # values
  props.each do |prop_name, value|
    if values = @rules[prop_name][:values]
      errors << "Value `#{value}` for prop `#{prop_name}` is not an allowed value" unless values.include?(value)
    end
  end

  errors
end