class ArelExtensions::Nodes::Cast

Attributes

as_attr[RW]

Public Class Methods

new(expr) click to toggle source
Calls superclass method
# File lib/arel_extensions/nodes/cast.rb, line 8
def initialize expr
  @as_attr = expr[1]
  case expr[1]
  when :int, 'bigint', 'int', 'smallint', 'tinyint', 'bit'
    @return_type = :int
  when :float, :decimal, 'decimal', 'numeric', 'money', 'smallmoney', 'float', 'real'
    @return_type = :decimal
  when :number
    @return_type = :number
  when 'char', 'varchar', 'nchar', 'nvarchar'
    @return_type = :string
  when 'text', :text, 'ntext', :ntext
    @as_attr = expr[1].to_sym
    @return_type = :string
  when :datetime, 'datetime','smalldatetime'
    @return_type = :datetime
  when :time,'time'
    @return_type = :time
  when :date,'date'
    @return_type = :date
  when :binary, 'binary', 'varbinary', 'image'
    @return_type = :binary
  else
    @return_type = :string
    @as_attr = :string
  end
  tab = [convert_to_node(expr.first)]
  return super(tab)
end

Public Instance Methods

+(other) click to toggle source
# File lib/arel_extensions/nodes/cast.rb, line 38
def +(other)
  case @return_type
  when :string
    return ArelExtensions::Nodes::Concat.new [self, other]
  when :ruby_time
    ArelExtensions::Nodes::DateAdd.new [self, other]
  else
    Arel::Nodes::Grouping.new(Arel::Nodes::Addition.new self, other)
  end
end
return_type() click to toggle source
# File lib/arel_extensions/nodes/cast.rb, line 49
def return_type
  @return_type
end