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-rw-r--r--activemodel/lib/active_model/errors.rb54
1 files changed, 43 insertions, 11 deletions
diff --git a/activemodel/lib/active_model/errors.rb b/activemodel/lib/active_model/errors.rb
index af94d52d45..9fd6f2d89c 100644
--- a/activemodel/lib/active_model/errors.rb
+++ b/activemodel/lib/active_model/errors.rb
@@ -112,6 +112,17 @@ module ActiveModel
@details.merge!(other.details) { |_, ary1, ary2| ary1 + ary2 }
end
+ # Removes all errors except the given keys. Returns a hash containing the removed errors.
+ #
+ # person.errors.keys # => [:name, :age, :gender, :city]
+ # person.errors.slice!(:age, :gender) # => { :name=>["cannot be nil"], :city=>["cannot be nil"] }
+ # person.errors.keys # => [:age, :gender]
+ def slice!(*keys)
+ keys = keys.map(&:to_sym)
+ @details.slice!(*keys)
+ @messages.slice!(*keys)
+ end
+
# Clear the error messages.
#
# person.errors.full_messages # => ["name cannot be nil"]
@@ -317,21 +328,42 @@ module ActiveModel
# person.errors.added? :name, :blank # => true
# person.errors.added? :name, "can't be blank" # => true
#
- # If the error message requires an option, then it returns +true+ with
- # the correct option, or +false+ with an incorrect or missing option.
+ # If the error message requires options, then it returns +true+ with
+ # the correct options, or +false+ with incorrect or missing options.
#
- # person.errors.add :name, :too_long, { count: 25 }
- # person.errors.added? :name, :too_long, count: 25 # => true
- # person.errors.added? :name, "is too long (maximum is 25 characters)" # => true
- # person.errors.added? :name, :too_long, count: 24 # => false
- # person.errors.added? :name, :too_long # => false
- # person.errors.added? :name, "is too long" # => false
+ # person.errors.add :name, :too_long, { count: 25 }
+ # person.errors.added? :name, :too_long, count: 25 # => true
+ # person.errors.added? :name, "is too long (maximum is 25 characters)" # => true
+ # person.errors.added? :name, :too_long, count: 24 # => false
+ # person.errors.added? :name, :too_long # => false
+ # person.errors.added? :name, "is too long" # => false
def added?(attribute, message = :invalid, options = {})
+ message = message.call if message.respond_to?(:call)
+
+ if message.is_a? Symbol
+ details[attribute.to_sym].include? normalize_detail(message, options)
+ else
+ self[attribute].include? message
+ end
+ end
+
+ # Returns +true+ if an error on the attribute with the given message is
+ # present, or +false+ otherwise. +message+ is treated the same as for +add+.
+ #
+ # person.errors.add :age
+ # person.errors.add :name, :too_long, { count: 25 }
+ # person.errors.of_kind? :age # => true
+ # person.errors.of_kind? :name # => false
+ # person.errors.of_kind? :name, :too_long # => true
+ # person.errors.of_kind? :name, "is too long (maximum is 25 characters)" # => true
+ # person.errors.of_kind? :name, :not_too_long # => false
+ # person.errors.of_kind? :name, "is too long" # => false
+ def of_kind?(attribute, message = :invalid)
+ message = message.call if message.respond_to?(:call)
+
if message.is_a? Symbol
- self.details[attribute.to_sym].map { |e| e[:error] }.include? message
+ details[attribute.to_sym].map { |e| e[:error] }.include? message
else
- message = message.call if message.respond_to?(:call)
- message = normalize_message(attribute, message, options)
self[attribute].include? message
end
end