Module: ActiveRecord::FindOnly

Defined in:
lib/active_record/find_only.rb,
lib/active_record/find_only/version.rb

Defined Under Namespace

Classes: TooManyRecords

Constant Summary collapse

VERSION = 
"0.4.1"

Instance Method Summary collapse

Instance Method Details

#find_only ⇒ Object

Gives the only record that matches the criteria. If no record matches the criteria, nil is returned. If more than one record matches the criteria, TooManyRecords is raised.



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# File 'lib/active_record/find_only.rb', line 11

def find_only
  found_records = take(2)
  if found_records.length > 1
    raise TooManyRecords
  end
  found_records[0]
end

#find_only! ⇒ Object

Gives the only record that matches the criteria. If no record matches the criteria, RecordNotFound is raised. If more than one record matches the criteria, TooManyRecords is raised.



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# File 'lib/active_record/find_only.rb', line 22

def find_only!
  find_only || raise_record_not_found_exception!
end