class MongoMapper::Plugins::Validations::UniquenessValidator

Public Class Methods

new(options) click to toggle source
Calls superclass method
# File lib/mongo_mapper/plugins/validations.rb, line 31
def initialize(options)
  @klass = options[:class] #only provided in ActiveModel 4.1 and higher
  super(options.reverse_merge(:case_sensitive => true))
end

Public Instance Methods

message(instance) click to toggle source
Calls superclass method
# File lib/mongo_mapper/plugins/validations.rb, line 61
def message(instance)
  super || "has already been taken"
end
scope_conditions(instance) click to toggle source
# File lib/mongo_mapper/plugins/validations.rb, line 65
def scope_conditions(instance)
  Array(options[:scope] || []).inject({}) do |conditions, key|
    conditions.merge(key => instance[key])
  end
end
setup(klass) click to toggle source
# File lib/mongo_mapper/plugins/validations.rb, line 39
def setup(klass)
  @klass = klass
end
validate_each(record, attribute, value) click to toggle source
# File lib/mongo_mapper/plugins/validations.rb, line 44
def validate_each(record, attribute, value)
  conditions = scope_conditions(record)

  if options[:case_sensitive]
    conditions[attribute] = value
  else
    conditions[attribute] = /^#{Regexp.escape(value.to_s)}$/i
  end

  # Make sure we're not including the current document in the query
  conditions[:_id.ne] = record._id if record._id

  if @klass.exists?(conditions)
    record.errors.add(attribute, :taken, **options.except(:case_sensitive, :scope).merge(:value => value))
  end
end