Class: Ronin::Code::SQL::Field

Inherits:
Expr
  • Object
show all
Defined in:
lib/ronin/code/sql/field.rb

Instance Method Summary collapse

Methods inherited from Expr

#===, #in?, #not_in?

Constructor Details

#initialize(symbols, name, prefix = nil) ⇒ Field

Returns a new instance of Field.



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# File 'lib/ronin/code/sql/field.rb', line 33

def initialize(symbols,name,prefix=nil)
  @symbols = symbols
  @prefix = prefix
  @name = name
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *arguments, &block) ⇒ Object (protected)

Raises:

  • (NoMethodError) 


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# File 'lib/ronin/code/sql/field.rb', line 90

def method_missing(name,*arguments,&block)
  if (arguments.empty? && @prefix.nil? && block.nil?)
    return field(name)
  end

  raise(NoMethodError,sym.id2name)
end

Instance Method Details

#<=>(range) ⇒ Object 



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# File 'lib/ronin/code/sql/field.rb', line 64

def <=>(range)
  between(range.begin,range.end)
end

#all ⇒ Object Also known as: * 



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# File 'lib/ronin/code/sql/field.rb', line 46

def all
  field('*')
end

#as(name) ⇒ Object 



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# File 'lib/ronin/code/sql/field.rb', line 56

def as(name)
  As.new(self,name)
end

#asc ⇒ Object 



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# File 'lib/ronin/code/sql/field.rb', line 68

def asc
  Asc.new(self)
end

#between(start, stop) ⇒ Object 



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# File 'lib/ronin/code/sql/field.rb', line 60

def between(start,stop)
  Between.new(self,start,stop)
end

#desc ⇒ Object 



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# File 'lib/ronin/code/sql/field.rb', line 72

def desc
  Desc.new(self)
end

#emit ⇒ Object 



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# File 'lib/ronin/code/sql/field.rb', line 76

def emit
  [path.to_sym]
end

#field(name) ⇒ Object 



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# File 'lib/ronin/code/sql/field.rb', line 39

def field(name)
  sym = @symbols.symbol("#{path}.#{name}")
  sym.value ||= Field.new(@symbols,name,self)

  return sym
end

#id ⇒ Object 



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# File 'lib/ronin/code/sql/field.rb', line 52

def id
  field('id')
end