94 lines
3.6 KiB
Ruby
94 lines
3.6 KiB
Ruby
# This is a monkey patch which must be removed when migrating to Rails 5.1 from 5.0.
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#
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# In Rails 5.0 there was introduced a bug which casts types in the uniqueness validator.
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# https://github.com/rails/rails/pull/23523/commits/811a4fa8eb6ceea841e61e8ac05747ffb69595ae
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#
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# That causes to bugs like this:
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#
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# 1) API::Users POST /user/:id/gpg_keys/:key_id/revoke when authenticated revokes existing key
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# Failure/Error: let(:gpg_key) { create(:gpg_key, user: user) }
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#
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# TypeError:
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# can't cast Hash
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# # ./spec/requests/api/users_spec.rb:7:in `block (2 levels) in <top (required)>'
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# # ./spec/requests/api/users_spec.rb:908:in `block (4 levels) in <top (required)>'
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# # ------------------
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# # --- Caused by: ---
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# # TypeError:
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# # TypeError
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# # ./spec/requests/api/users_spec.rb:7:in `block (2 levels) in <top (required)>'
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#
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# This bug was fixed in Rails 5.1 by https://github.com/rails/rails/pull/24745/commits/aa062318c451512035c10898a1af95943b1a3803
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if Rails.gem_version >= Gem::Version.new("5.1")
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raise "Remove this monkey patch: #{__FILE__}"
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end
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# Copy-paste from https://github.com/kamipo/rails/blob/aa062318c451512035c10898a1af95943b1a3803/activerecord/lib/active_record/validations/uniqueness.rb
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# including local fixes to make Rubocop happy again.
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module ActiveRecord
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module Validations
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class UniquenessValidator < ActiveModel::EachValidator # :nodoc:
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def validate_each(record, attribute, value)
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finder_class = find_finder_class_for(record)
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table = finder_class.arel_table
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value = map_enum_attribute(finder_class, attribute, value)
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relation = build_relation(finder_class, table, attribute, value)
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if record.persisted?
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if finder_class.primary_key
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relation = relation.where.not(finder_class.primary_key => record.id_was || record.id)
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else
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raise UnknownPrimaryKey.new(finder_class, "Can not validate uniqueness for persisted record without primary key.")
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end
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end
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relation = scope_relation(record, table, relation)
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relation = relation.merge(options[:conditions]) if options[:conditions]
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if relation.exists?
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error_options = options.except(:case_sensitive, :scope, :conditions)
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error_options[:value] = value
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record.errors.add(attribute, :taken, error_options)
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end
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rescue RangeError
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end
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protected
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def build_relation(klass, table, attribute, value) #:nodoc:
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if reflection = klass._reflect_on_association(attribute)
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attribute = reflection.foreign_key
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value = value.attributes[reflection.klass.primary_key] unless value.nil?
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end
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# the attribute may be an aliased attribute
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if klass.attribute_alias?(attribute)
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attribute = klass.attribute_alias(attribute)
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end
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attribute_name = attribute.to_s
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column = klass.columns_hash[attribute_name]
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cast_type = klass.type_for_attribute(attribute_name)
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comparison =
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if !options[:case_sensitive] && !value.nil?
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# will use SQL LOWER function before comparison, unless it detects a case insensitive collation
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klass.connection.case_insensitive_comparison(table, attribute, column, value)
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else
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klass.connection.case_sensitive_comparison(table, attribute, column, value)
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end
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if value.nil?
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klass.unscoped.where(comparison)
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else
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bind = Relation::QueryAttribute.new(attribute_name, value, cast_type)
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klass.unscoped.where(comparison, bind)
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end
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end
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end
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end
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end
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