Module: Eel::CoreExt::SymbolExtensions

Defined in:
lib/eel/core_ext/symbol_extensions.rb

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args, &block) ⇒ Object 



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# File 'lib/eel/core_ext/symbol_extensions.rb', line 28

def method_missing method_name, *args, &block
  if method_name.in? predicates
    if args.present?
      attr.send(method_name, *args) # binary nodes
    else
      attr.send(method_name)        # unary nodes
    end
  else
    super
  end
end

Instance Method Details

#attr ⇒ Object 



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# File 'lib/eel/core_ext/symbol_extensions.rb', line 5

def attr
  Arel::Attributes::Attribute.new(nil, self)
end

#of(val) ⇒ Object 



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# File 'lib/eel/core_ext/symbol_extensions.rb', line 9

def of val
  relation = case val
               when Class
                 val.arel_table
               when Symbol
                 val
               when String
                 Arel::Table.new(val)
               else
                 raise "Can't use #{val.class} as a relation"
             end

  Arel::Attributes::Attribute.new(relation, self)
end

#respond_to_missing?(method_name, private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/eel/core_ext/symbol_extensions.rb', line 24

def respond_to_missing? method_name, private = false
  method_name.in? predicates
end