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Contents
module ActiveRecord
module Validations
class UniquenessValidator
def validate_each(record, attribute, value)
finder_class = find_finder_class_for(record)
table = finder_class.arel_table
coder = record.class.serialized_attributes[attribute.to_s]
if value && coder
value = coder.dump value
end
relation = build_relation(finder_class, table, attribute, value)
# CPK
# relation = relation.and(table[finder_class.primary_key.to_sym].not_eq(record.send(:id))) if record.persisted?
if record.persisted?
not_eq_conditions = Array(finder_class.primary_key).zip(Array(record.send(:id))).map do |name, value|
table[name.to_sym].not_eq(value)
end
condition = not_eq_conditions.shift
not_eq_conditions.each do |not_eq_condition|
condition = condition.or(not_eq_conditions)
end
relation = relation.and(condition)
end
Array.wrap(options[:scope]).each do |scope_item|
scope_value = record.send(scope_item)
relation = relation.and(table[scope_item].eq(scope_value))
end
if finder_class.unscoped.where(relation).exists?
record.errors.add(attribute, :taken, options.except(:case_sensitive, :scope).merge(:value => value))
end
end
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems