Class: Spree::Validations::DbMaximumLengthValidator

Inherits:
ActiveModel::Validator
  • Object
show all
Defined in:
app/models/spree/validations/db_maximum_length_validator.rb

Overview

Validates a field based on the maximum length of the underlying DB field, if there is one.

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ DbMaximumLengthValidator

Returns a new instance of DbMaximumLengthValidator.

Raises:

  • (ArgumentError) 


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# File 'app/models/spree/validations/db_maximum_length_validator.rb', line 8

def initialize(options)
  super
  @field = options[:field].to_s
  raise ArgumentError.new("a field must be specified to the validator") if @field.blank?
end

Instance Method Details

#validate(record) ⇒ Object 



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# File 'app/models/spree/validations/db_maximum_length_validator.rb', line 14

def validate(record)
  limit = record.class.columns_hash[@field].limit
  value = record[@field.to_sym]
  if value && limit && value.to_s.length > limit
    record.errors.add(@field.to_sym, :too_long, count: limit)
  end
end