Class: MongoMapper::Plugins::Validations::UniquenessValidator

Inherits:
ActiveModel::EachValidator
  • Object
show all
Defined in:
lib/novelys_mongo_mapper/plugins/validations.rb

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ UniquenessValidator

Returns a new instance of UniquenessValidator.



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# File 'lib/novelys_mongo_mapper/plugins/validations.rb', line 15

def initialize(options)
  super(options.reverse_merge(:case_sensitive => true))
end

Instance Method Details

#setup(klass) ⇒ Object

Unfortunately, we have to tie Uniqueness validators to a class.



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# File 'lib/novelys_mongo_mapper/plugins/validations.rb', line 20

def setup(klass)
  @klass = klass
end

#validate_each(record, attribute, value) ⇒ Object 



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# File 'lib/novelys_mongo_mapper/plugins/validations.rb', line 24

def validate_each(record, attribute, value)
  # finder_class = find_finder_class_for(record)
  #         table = finder_class.unscoped
  # 
  #         table_name   = record.class.quoted_table_name
  #         sql, params  = mount_sql_and_params(finder_class, table_name, attribute, value)
  # 
  #         relation = table.where(sql, *params)
  # 
  #         Array(options[:scope]).each do |scope_item|
  #           scope_value = record.send(scope_item)
  #           relation = relation.where(scope_item => scope_value)
  #         end
  # 
  #         unless record.new_record?
  #           # TODO : This should be in Arel
  #           relation = relation.where("#{record.class.quoted_table_name}.#{record.class.primary_key} <> ?", record.send(:id))
  #         end
  # 
  #         if relation.exists?
  #           record.errors.add(attribute, :taken, :default => options[:message], :value => value)
  #         end



  #        value = instance[attribute]
  #        return true if allow_blank && value.blank?
  #        base_conditions = case_sensitive ? {self.attribute => value} : {}
  where_conditions = {}
  where_conditions[attribute] = /#{record[attribute].to_s}/i

  doc = record.class.first(where_conditions)
  record.errors.add(attribute, :taken, :default => options[:message], :value => value) unless doc.nil? || record._id == doc._id
end