instance method `find_by`

Ruby on Rails 6.0.6

Since v4.0.13

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find_by(arg, *args)

Finds the first record matching the specified conditions. There is no implied ordering so if order matters, you should specify it yourself.

If no record is found, returns nil.

Post.find_by name: 'Spartacus', rating: 4
Post.find_by "published_at < ?", 2.weeks.ago

Parameters

Source

# File activerecord/lib/active_record/relation/finder_methods.rb, line 80
    def find_by(arg, *args)
      where(arg, *args).take
    end

Defined in activerecord/lib/active_record/relation/finder_methods.rb line 80 · View on GitHub · Improve this page · Find usages on GitHub