Module: Dino::Upsert

Extended by:
ActiveSupport::Concern
Defined in:
lib/dino/upsert.rb

Overview

Provides a simple way to do an create or update of an ActiveRecord object.

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Class Method Details

.upsert(klass, data, options = {}, &block) ⇒ Object

klass: The ActiveRecord class we are upserting against. conditions: what should match the upsert options: what we are updating/inserting If provided, the block gets the object before it’s saved, in case

there's special init options necessary for it.

rubocop:disable MethodLength



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# File 'lib/dino/upsert.rb', line 21

def self.upsert(klass, data, options = {}, &block)
  retry_count = 0
  data_copy = {}
  data ||= []
  data.each do |k, v|
    v = klass.column_for_attribute(k).type_cast_for_database(v) if v.is_a?(Hash)
    data_copy[k] = v
  end
  begin
    klass.transaction(requires_new: true) do
      object = klass.where(data_copy).first_or_initialize
      block.call(object) if block
      object.tap do |t|
        t.assign_attributes(options)
        t.save! if t.changed?
      end
    end
  rescue PG::UniqueViolation, ActiveRecord::RecordNotUnique
    # If there's a unique violation, retry this. But only a certain amount
    # of times or we'll get into an infinite loop if something's messed up.
    # (like an incorrect unique index or something)
    if retry_count < 10
      retry_count += 1
      retry
    else
      raise
    end
  end
end