Class: LIVR::Validator

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(rules, is_auto_trim = false) ⇒ Validator

Returns a new instance of Validator.



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

def initialize(rules, is_auto_trim=false)
  @rules = rules
  @is_prepared = false
  @validator_builders = {}
  @validators = {}
  @is_auto_trim = is_auto_trim

  register_default_rules
end

Class Method Details

.register_default_rules(rules) ⇒ Object 



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

def self.register_default_rules(rules)
  @@default_rules ||= {}
  @@default_rules.merge!(rules.with_indifferent_access)
end

Instance Method Details

#get_errors ⇒ Object 



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# File 'lib/livr/validator.rb', line 83

def get_errors
  @errors
end

#prepare ⇒ Object 



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# File 'lib/livr/validator.rb', line 22

def prepare
  @rules.each do |field, field_rules|
    field_rules = Array.wrap(field_rules)
    @validators[field] = field_rules.map do |field_rule|
      rule_name, rule_args = parse_rule(field_rule)
      build_validator(rule_name, rule_args)
    end
    @is_prepared = true
  end
  self
end

#register_aliased_rule(_alias) ⇒ Object 



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# File 'lib/livr/validator.rb', line 18

def register_aliased_rule(_alias)
  register_rules( _alias["name"] =>  AliasedRule.new(_alias) )
end

#register_rules(rules) ⇒ Object 



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# File 'lib/livr/validator.rb', line 78

def register_rules(rules)
  @validator_builders.merge!(rules)
  self
end

#validate(user_data) ⇒ Object 



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# File 'lib/livr/validator.rb', line 34

def validate(user_data)
  prepare unless @is_prepared

  unless user_data.is_a?(Hash)
    @errors = 'FORMAT_ERROR'
    return
  end

  if @is_auto_trim
    user_data = auto_trim(user_data)
  end

  @result = {}
  @errors = {}

  @validators.each do |field, validators|
    next if validators.blank?
    next if !@rules.has_key?(field)

    value = user_data[field]
    validators.each do |validator|
      field_results = []
      field_value = @result.fetch(field, value)
      error_code = validator.call(field_value, user_data, field_results)

      if error_code
        @errors[field] = error_code
        break
      elsif field_results.present?
        @result[field] = field_results.first
      elsif user_data.has_key?(field) && !@result.has_key?(field)
        @result[field] = value
      end
    end
  end

  if @errors.present?
    return false
  else
    @errors = nil
    return @result
  end
end