Module: ActiveRecord::MassAssignmentSecurity::Relation

Included in:
Base
Defined in:
lib/active_record/mass_assignment_security/relation.rb

Instance Method Summary collapse

Instance Method Details

#first_or_create(attributes = nil, options = {}, &block) ⇒ Object

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'>



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# File 'lib/active_record/mass_assignment_security/relation.rb', line 28

def first_or_create(attributes = nil, options = {}, &block)
  first || create(attributes, options, &block)
end

#first_or_create!(attributes = nil, options = {}, &block) ⇒ Object

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!.



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# File 'lib/active_record/mass_assignment_security/relation.rb', line 35

def first_or_create!(attributes = nil, options = {}, &block)
  first || create!(attributes, options, &block)
end

#first_or_initialize(attributes = nil, &block) ⇒ Object

Like first_or_create but calls new instead of create.

Expects arguments in the same format as Base.new.



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# File 'lib/active_record/mass_assignment_security/relation.rb', line 42

def first_or_initialize(attributes = nil, &block)
  first || new(attributes, options, &block)
end