diff options
Diffstat (limited to 'activerecord/lib/active_record/relation.rb')
| -rw-r--r-- | activerecord/lib/active_record/relation.rb | 53 |
1 files changed, 31 insertions, 22 deletions
diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index ed80422336..2e2286e4fd 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -91,8 +91,10 @@ module ActiveRecord end def initialize_copy(other) - @values = @values.dup - @values[:bind] = @values[:bind].dup if @values[:bind] + # This method is a hot spot, so for now, use Hash[] to dup the hash. + # https://bugs.ruby-lang.org/issues/7166 + @values = Hash[@values] + @values[:bind] = @values[:bind].dup if @values.key? :bind reset end @@ -127,46 +129,53 @@ module ActiveRecord scoping { @klass.create!(*args, &block) } end - # Tries to load the first record; if it fails, then <tt>create</tt> is called with the same arguments as this method. - # - # Expects arguments in the same format as +Base.create+. + def first_or_create(attributes = nil, &block) # :nodoc: + first || create(attributes, &block) + end + + def first_or_create!(attributes = nil, &block) # :nodoc: + first || create!(attributes, &block) + end + + def first_or_initialize(attributes = nil, &block) # :nodoc: + first || new(attributes, &block) + end + + # Finds the first record with the given attributes, or creates a record with the attributes + # if one is not found. # # ==== Examples # # Find the first user named Penélope or create a new one. - # User.where(:first_name => 'Penélope').first_or_create + # User.find_or_create_by(first_name: 'Penélope') # # => <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.find_or_create_by(first_name: 'Penélope') # # => <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.create_with(last_name: 'Johansson').find_or_create_by(first_name: 'Scarlett') # # => <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.find_or_create_by(first_name: 'Scarlett') do |user| # user.last_name = "O'Hara" # end # # => <User id: 2, first_name: 'Scarlett', last_name: 'Johansson'> - def first_or_create(attributes = nil, &block) - first || create(attributes, &block) + def find_or_create_by(attributes, &block) + find_by(attributes) || create(attributes, &block) end - # Like <tt>first_or_create</tt> but calls <tt>create!</tt> so an exception is raised if the created record is invalid. - # - # Expects arguments in the same format as <tt>Base.create!</tt>. - def first_or_create!(attributes = nil, &block) - first || create!(attributes, &block) + # Like <tt>find_or_create_by</tt>, but calls <tt>create!</tt> so an exception is raised if the created record is invalid. + def find_or_create_by!(attributes, &block) + find_by(attributes) || create!(attributes, &block) end - # Like <tt>first_or_create</tt> but calls <tt>new</tt> instead of <tt>create</tt>. - # - # Expects arguments in the same format as <tt>Base.new</tt>. - def first_or_initialize(attributes = nil, &block) - first || new(attributes, &block) + # Like <tt>find_or_create_by</tt>, but calls <tt>new</tt> instead of <tt>create</tt>. + def find_or_initialize_by(attributes, &block) + find_by(attributes) || new(attributes, &block) end # Runs EXPLAIN on the query or queries triggered by this relation and @@ -540,7 +549,7 @@ module ActiveRecord end def values - @values.dup + Hash[@values] end def inspect |