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Contents
module MongoMapper
module Validations
module Macros
def validates_uniqueness_of(*args)
add_validations(args, MongoMapper::Validations::ValidatesUniquenessOf)
end
end
class ValidatesUniquenessOf < Validatable::ValidationBase
option :scope, :case_sensitive
default :case_sensitive => true
def valid?(instance)
value = instance[attribute]
return true if allow_blank && value.blank?
base_conditions = case_sensitive ? {self.attribute => value} : {}
doc = instance.class.first(base_conditions.merge(scope_conditions(instance)).merge(where_conditions(instance)))
doc.nil? || instance._id == doc._id
end
def message(instance)
super || "has already been taken"
end
def scope_conditions(instance)
return {} unless scope
Array(scope).inject({}) do |conditions, key|
conditions.merge(key => instance[key])
end
end
def where_conditions(instance)
conditions = {}
conditions[attribute] = /#{instance[attribute].to_s}/i unless case_sensitive
conditions
end
end
end
end
Version data entries
11 entries across 11 versions & 4 rubygems