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-rw-r--r--activemodel/CHANGELOG.md20
-rw-r--r--activemodel/lib/active_model/errors.rb57
-rw-r--r--activemodel/test/cases/errors_test.rb42
3 files changed, 98 insertions, 21 deletions
diff --git a/activemodel/CHANGELOG.md b/activemodel/CHANGELOG.md
index fb4b972282..175912b240 100644
--- a/activemodel/CHANGELOG.md
+++ b/activemodel/CHANGELOG.md
@@ -1,7 +1,25 @@
+* Add `ActiveModel::Errors#details`
+
+ To be able to return type of used validator, one can now call `details`
+ on Errors instance:
+
+ ```ruby
+ class User < ActiveRecord::Base
+ validates :name, presence: true
+ end
+ ```
+
+ ```ruby
+ user = User.new; user.valid?; user.errors.details
+ => {name: [{error: :blank}]}
+ ```
+
+ *Wojciech Wnętrzak*
+
* Change validates_acceptance_of to accept true by default.
The default for validates_acceptance_of is now "1" and true.
- In the past, only "1" was the default and you were required to add
+ In the past, only "1" was the default and you were required to add
accept: true.
* Remove deprecated `ActiveModel::Dirty#reset_#{attribute}` and
diff --git a/activemodel/lib/active_model/errors.rb b/activemodel/lib/active_model/errors.rb
index 477edbd120..912448e43c 100644
--- a/activemodel/lib/active_model/errors.rb
+++ b/activemodel/lib/active_model/errors.rb
@@ -23,7 +23,7 @@ module ActiveModel
# attr_reader :errors
#
# def validate!
- # errors.add(:name, "cannot be nil") if name.nil?
+ # errors.add(:name, :blank, message: "cannot be nil") if name.nil?
# end
#
# # The following methods are needed to be minimally implemented
@@ -58,8 +58,9 @@ module ActiveModel
include Enumerable
CALLBACKS_OPTIONS = [:if, :unless, :on, :allow_nil, :allow_blank, :strict]
+ MESSAGE_OPTIONS = [:message]
- attr_reader :messages
+ attr_reader :messages, :details
# Pass in the instance of the object that is using the errors object.
#
@@ -71,10 +72,12 @@ module ActiveModel
def initialize(base)
@base = base
@messages = {}
+ @details = Hash.new { |details, attribute| details[attribute] = [] }
end
def initialize_dup(other) # :nodoc:
@messages = other.messages.dup
+ @details = other.details.dup
super
end
@@ -85,6 +88,7 @@ module ActiveModel
# person.errors.full_messages # => []
def clear
messages.clear
+ details.clear
end
# Returns +true+ if the error messages include an error for the given key
@@ -126,6 +130,7 @@ module ActiveModel
# person.errors.get(:name) # => nil
def delete(key)
messages.delete(key)
+ details.delete(key)
end
# When passed a symbol or a name of a method, returns an array of errors
@@ -149,12 +154,12 @@ module ActiveModel
# Yields the attribute and the error for that attribute. If the attribute
# has more than one error message, yields once for each error message.
#
- # person.errors.add(:name, "can't be blank")
+ # person.errors.add(:name, :blank, message: "can't be blank")
# person.errors.each do |attribute, error|
# # Will yield :name and "can't be blank"
# end
#
- # person.errors.add(:name, "must be specified")
+ # person.errors.add(:name, :not_specified, message: "must be specified")
# person.errors.each do |attribute, error|
# # Will yield :name and "can't be blank"
# # then yield :name and "must be specified"
@@ -167,9 +172,9 @@ module ActiveModel
# Returns the number of error messages.
#
- # person.errors.add(:name, "can't be blank")
+ # person.errors.add(:name, :blank, message: "can't be blank")
# person.errors.size # => 1
- # person.errors.add(:name, "must be specified")
+ # person.errors.add(:name, :not_specified, message: "must be specified")
# person.errors.size # => 2
def size
values.flatten.size
@@ -193,8 +198,8 @@ module ActiveModel
# Returns an array of error messages, with the attribute name included.
#
- # person.errors.add(:name, "can't be blank")
- # person.errors.add(:name, "must be specified")
+ # person.errors.add(:name, :blank, message: "can't be blank")
+ # person.errors.add(:name, :not_specified, message: "must be specified")
# person.errors.to_a # => ["name can't be blank", "name must be specified"]
def to_a
full_messages
@@ -202,9 +207,9 @@ module ActiveModel
# Returns the number of error messages.
#
- # person.errors.add(:name, "can't be blank")
+ # person.errors.add(:name, :blank, message: "can't be blank")
# person.errors.count # => 1
- # person.errors.add(:name, "must be specified")
+ # person.errors.add(:name, :not_specified, message: "must be specified")
# person.errors.count # => 2
def count
to_a.size
@@ -223,8 +228,8 @@ module ActiveModel
# Returns an xml formatted representation of the Errors hash.
#
- # person.errors.add(:name, "can't be blank")
- # person.errors.add(:name, "must be specified")
+ # person.errors.add(:name, :blank, message: "can't be blank")
+ # person.errors.add(:name, :not_specified, message: "must be specified")
# person.errors.to_xml
# # =>
# # <?xml version=\"1.0\" encoding=\"UTF-8\"?>
@@ -261,17 +266,20 @@ module ActiveModel
end
end
- # Adds +message+ to the error messages on +attribute+. More than one error
- # can be added to the same +attribute+. If no +message+ is supplied,
- # <tt>:invalid</tt> is assumed.
+ # Adds +message+ to the error messages and used validator type to +details+ on +attribute+.
+ # More than one error can be added to the same +attribute+.
+ # If no +message+ is supplied, <tt>:invalid</tt> is assumed.
#
# person.errors.add(:name)
# # => ["is invalid"]
- # person.errors.add(:name, 'must be implemented')
+ # person.errors.add(:name, :not_implemented, message: "must be implemented")
# # => ["is invalid", "must be implemented"]
#
# person.errors.messages
- # # => {:name=>["must be implemented", "is invalid"]}
+ # # => {:name=>["is invalid", "must be implemented"]}
+ #
+ # person.errors.details
+ # # => {:name=>[{error: :not_implemented}, {error: :invalid}]}
#
# If +message+ is a symbol, it will be translated using the appropriate
# scope (see +generate_message+).
@@ -293,16 +301,22 @@ module ActiveModel
# +attribute+ should be set to <tt>:base</tt> if the error is not
# directly associated with a single attribute.
#
- # person.errors.add(:base, "either name or email must be present")
+ # person.errors.add(:base, :name_or_email_blank,
+ # message: "either name or email must be present")
# person.errors.messages
# # => {:base=>["either name or email must be present"]}
+ # person.errors.details
+ # # => {:base=>[{error: :name_or_email_blank}]}
def add(attribute, message = :invalid, options = {})
+ message = message.call if message.respond_to?(:call)
+ detail = normalize_detail(attribute, message, options)
message = normalize_message(attribute, message, options)
if exception = options[:strict]
exception = ActiveModel::StrictValidationFailed if exception == true
raise exception, full_message(attribute, message)
end
+ details[attribute.to_sym] << detail
self[attribute] << message
end
@@ -339,6 +353,7 @@ module ActiveModel
# person.errors.add :name, :blank
# person.errors.added? :name, :blank # => true
def added?(attribute, message = :invalid, options = {})
+ message = message.call if message.respond_to?(:call)
message = normalize_message(attribute, message, options)
self[attribute].include? message
end
@@ -447,12 +462,14 @@ module ActiveModel
case message
when Symbol
generate_message(attribute, message, options.except(*CALLBACKS_OPTIONS))
- when Proc
- message.call
else
message
end
end
+
+ def normalize_detail(attribute, message, options)
+ { error: message }.merge(options.except(*CALLBACKS_OPTIONS + MESSAGE_OPTIONS))
+ end
end
# Raised when a validation cannot be corrected by end users and are considered
diff --git a/activemodel/test/cases/errors_test.rb b/activemodel/test/cases/errors_test.rb
index efedd9055f..9cfba9812b 100644
--- a/activemodel/test/cases/errors_test.rb
+++ b/activemodel/test/cases/errors_test.rb
@@ -323,4 +323,46 @@ class ErrorsTest < ActiveModel::TestCase
person.errors.expects(:generate_message).with(:name, :blank, { message: 'custom' })
person.errors.add_on_blank :name, message: 'custom'
end
+
+ test "details returns added error detail" do
+ person = Person.new
+ person.errors.add(:name, :invalid)
+ assert_equal({ name: [{ error: :invalid }] }, person.errors.details)
+ end
+
+ test "details returns added error detail with custom option" do
+ person = Person.new
+ person.errors.add(:name, :greater_than, count: 5)
+ assert_equal({ name: [{ error: :greater_than, count: 5 }] }, person.errors.details)
+ end
+
+ test "details do not include message option" do
+ person = Person.new
+ person.errors.add(:name, :invalid, message: "is bad")
+ assert_equal({ name: [{ error: :invalid }] }, person.errors.details)
+ end
+
+ test "dup duplicates details" do
+ errors = ActiveModel::Errors.new(Person.new)
+ errors.add(:name, :invalid)
+ errors_dup = errors.dup
+ errors_dup.add(:name, :taken)
+ assert_not_same errors_dup.details, errors.details
+ end
+
+ test "delete removes details on given attribute" do
+ errors = ActiveModel::Errors.new(Person.new)
+ errors.add(:name, :invalid)
+ errors.delete(:name)
+ assert_empty errors.details[:name]
+ end
+
+ test "clear removes details" do
+ person = Person.new
+ person.errors.add(:name, :invalid)
+
+ assert_equal 1, person.errors.details.count
+ person.errors.clear
+ assert person.errors.details.empty?
+ end
end