Module: AWS::Record::Scopes

Included in:
Base
Defined in:
lib/aws/record/scopes.rb

Instance Method Summary collapse

Instance Method Details

#scope(name, scope = nil, &block) ⇒ Object

Adds a scoped finder method to this class. Given a call to scope like:

scope :top_10, order(:popularity, :desc).limit(10)

Then you can call the method top_10 on the class and it will return an enumerable scope object with the given find conditions.

Parameters:

  • name (Symbol) —

    The name of the scope. Scope names should be method-safe and should not conflict with any other class methods.

Raises:

  • (ArgumentError) 


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# File 'lib/aws/record/scopes.rb', line 33

def scope name, scope = nil, &block
  
  raise ArgumentError, "only a scope or block may be passed, not both" if
    scope and block_given?

  method_definition = scope ? 
    lambda{ scope } :
    block

  extend(Module.new { define_method(name, &method_definition) })

end