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
1808 def initialize(expression, sub)
1809   @expression = expression
1810   @sub = sub
1811   freeze
1812 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
1828 def [](sub)
1829   Subscript.new(self, Array(sub))
1830 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
1819 def |(sub)
1820   Subscript.new(@expression, @sub + Array(sub))
1821 end