class Sequel::SQL::Subscript

Represents an SQL array access, with multiple possible arguments.

Attributes

expression[R]

The SQL array column

f[R]

The SQL array column

sub[R]

The array of subscripts to use (should be an array of numbers)

Public Class Methods

new(expression, sub) click to toggle source

Set the array column and subscripts to the given arguments

     # File lib/sequel/sql.rb
1793 def initialize(expression, sub)
1794   @expression = expression
1795   @sub = sub
1796   freeze
1797 end

Public Instance Methods

[](sub) click to toggle source

Create a new Subscript by accessing a subarray of a multidimensional array.

Sequel[:a].sql_subscript(2) # a[2]
Sequel[:a].sql_subscript(2)[1] # a[2][1]
     # File lib/sequel/sql.rb
1813 def [](sub)
1814   Subscript.new(self, Array(sub))
1815 end
|(sub) click to toggle source

Create a new Subscript appending the given subscript(s) to the current array of subscripts.

Sequel[:a].sql_subscript(2) # a[2]
Sequel[:a].sql_subscript(2) | 1 # a[2, 1]
     # File lib/sequel/sql.rb
1804 def |(sub)
1805   Subscript.new(@expression, @sub + Array(sub))
1806 end