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
1816 def initialize(expression, sub)
1817   @expression = expression
1818   @sub = sub
1819   freeze
1820 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
1836 def [](sub)
1837   Subscript.new(self, Array(sub))
1838 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
1827 def |(sub)
1828   Subscript.new(@expression, @sub + Array(sub))
1829 end