method
validate_each
v4.1.8 -
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Class: ActiveRecord::Validations::UniquenessValidator
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validate_each(record, attribute, value)
public
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# File activerecord/lib/active_record/validations/uniqueness.rb, line 13 def validate_each(record, attribute, value) finder_class = find_finder_class_for(record) table = finder_class.arel_table value = map_enum_attribute(finder_class,attribute,value) value = deserialize_attribute(record, attribute, value) relation = build_relation(finder_class, table, attribute, value) relation = relation.and(table[finder_class.primary_key.to_sym].not_eq(record.id)) if record.persisted? relation = scope_relation(record, table, relation) relation = finder_class.unscoped.where(relation) relation = relation.merge(options[:conditions]) if options[:conditions] if relation.exists? error_options = options.except(:case_sensitive, :scope, :conditions) error_options[:value] = value record.errors.add(attribute, :taken, error_options) end end