Class: Validate::Validator

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

Overview

Actual implementation

Instance Method Summary collapse

Constructor Details

#initialize(validations) ⇒ Validator

Returns a new instance of Validator.



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# File 'lib/validate/validator.rb', line 8

def initialize(validations)
  @validations = validations
end

Instance Method Details

#validates?(context) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/validate/validator.rb', line 12

def validates?(context)
  bool = @validations
    .map do |v|
      # destructure fields
      v[:fields].map {|f| v.merge(fields: f) }
    end.flatten(1)
    .select do |v|
      # `:when` is a special case, this gets processed right away and
      # filtered out...
      when_opt = (v[:opts] || {})[:when]
      # :is_set is short for checking if then field is set
      when_opt = -> { self.to_hash.include?(v[:fields]) } if when_opt == :is_set
      !when_opt.is_a?(Proc) || context.instance_exec(&when_opt)
    end
    .map do |v|
      # lastly, execute validation
      validator = if v[:validations]
        Validator.new(v[:validations])
      end
      ValidationMethods.send(v[:name], context.to_hash, v[:fields], v[:opts], validator)
    end
    .reduce {|a,b| a && b }
    # return the result as a boolean
  bool.nil? ? true : bool
end