Class: ArelExtensions::Nodes::Substring

Inherits:
Function
  • Object
show all
Defined in:
lib/arel_extensions/nodes/substring.rb

Constant Summary collapse

RETURN_TYPE = 
:string

Constants inherited from Function

Function::MBSTRING

Instance Method Summary collapse

Methods inherited from Function

#!=, #==, #as, #convert_to_date_node, #convert_to_datetime_node, #convert_to_node, #convert_to_number, #convert_to_string_node, #expr, #left, #return_type, #right, #type_of_attribute

Methods included from Predications

#cast, #convert_to_node, #imatches, #in, #matches, #not_in, #when

Constructor Details

#initialize(expr) ⇒ Substring

Returns a new instance of Substring.



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# File 'lib/arel_extensions/nodes/substring.rb', line 6

def initialize expr
  tab = [convert_to_node(expr[0]), convert_to_node(expr[1])]
  if expr[2]
    tab << convert_to_node(expr[2])
  end
  return super(tab)
end