class ActiveRecord::Relation

Public Instance Methods

create(attributes = nil, options = {}, &block) click to toggle source
# File lib/active_record/mass_assignment_security/relation.rb, line 19
def create(attributes = nil, options = {}, &block)
  if attributes.is_a?(Array)
    attributes.collect { |attr| create(attr, options, &block) }
  else
    attrs = respond_to?(:values_for_create) ? values_for_create(attributes) : attributes

    scoping { klass.create(attrs, options, &block) }
  end
end
create!(attributes = nil, options = {}, &block) click to toggle source
# File lib/active_record/mass_assignment_security/relation.rb, line 29
def create!(attributes = nil, options = {}, &block)
  if attributes.is_a?(Array)
    attributes.collect { |attr| create!(attr, options, &block) }
  else
    attrs = respond_to?(:values_for_create) ? values_for_create(attributes) : attributes

    scoping { klass.create!(attrs, options, &block) }
  end
end
find_or_create_by(attributes, options = {}, &block) click to toggle source
# File lib/active_record/mass_assignment_security/relation.rb, line 85
def find_or_create_by(attributes, options = {}, &block)
  find_by(attributes.respond_to?(:to_unsafe_h) ? attributes.to_unsafe_h : attributes) || create(attributes, options, &block)
end
find_or_create_by!(attributes, options = {}, &block) click to toggle source
# File lib/active_record/mass_assignment_security/relation.rb, line 89
def find_or_create_by!(attributes, options = {}, &block)
  find_by(attributes.respond_to?(:to_unsafe_h) ? attributes.to_unsafe_h : attributes) || create!(attributes, options, &block)
end
find_or_initialize_by(attributes, options = {}, &block) click to toggle source
# File lib/active_record/mass_assignment_security/relation.rb, line 81
def find_or_initialize_by(attributes, options = {}, &block)
  find_by(attributes.respond_to?(:to_unsafe_h) ? attributes.to_unsafe_h : attributes) || new(attributes, options, &block)
end
first_or_create(attributes = nil, options = {}, &block) click to toggle source

Tries to load the first record; if it fails, then create is called with the same arguments as this method.

Expects arguments in the same format as Base.create.

Examples

# Find the first user named Penélope or create a new one.
User.where(:first_name => 'Penélope').first_or_create
# => <User id: 1, first_name: 'Penélope', last_name: nil>

# Find the first user named Penélope or create a new one.
# We already have one so the existing record will be returned.
User.where(:first_name => 'Penélope').first_or_create
# => <User id: 1, first_name: 'Penélope', last_name: nil>

# Find the first user named Scarlett or create a new one with a particular last name.
User.where(:first_name => 'Scarlett').first_or_create(:last_name => 'Johansson')
# => <User id: 2, first_name: 'Scarlett', last_name: 'Johansson'>

# Find the first user named Scarlett or create a new one with a different last name.
# We already have one so the existing record will be returned.
User.where(:first_name => 'Scarlett').first_or_create do |user|
  user.last_name = "O'Hara"
end
# => <User id: 2, first_name: 'Scarlett', last_name: 'Johansson'>
# File lib/active_record/mass_assignment_security/relation.rb, line 63
def first_or_create(attributes = nil, options = {}, &block)
  first || create(attributes, options, &block)
end
first_or_create!(attributes = nil, options = {}, &block) click to toggle source

Like first_or_create but calls create! so an exception is raised if the created record is invalid.

Expects arguments in the same format as Base.create!.

# File lib/active_record/mass_assignment_security/relation.rb, line 70
def first_or_create!(attributes = nil, options = {}, &block)
  first || create!(attributes, options, &block)
end
first_or_initialize(attributes = nil, options = {}, &block) click to toggle source

Like first_or_create but calls new instead of create.

Expects arguments in the same format as Base.new.

# File lib/active_record/mass_assignment_security/relation.rb, line 77
def first_or_initialize(attributes = nil, options = {}, &block)
  first || new(attributes, options, &block)
end
new(attributes = nil, options = {}, &block) click to toggle source
# File lib/active_record/mass_assignment_security/relation.rb, line 13
def new(attributes = nil, options = {}, &block)
  attrs = respond_to?(:values_for_create) ? values_for_create(attributes) : attributes

  scoping { klass.new(attrs, options, &block) }
end