class Sequel::SQL::PlaceholderLiteralString
Represents a literal string with placeholders and arguments. This is necessary to ensure delayed literalization of the arguments required for the prepared statement support and for database-specific literalization.
Attributes
The arguments that will be subsituted into the placeholders. Either an array of unnamed placeholders (which will be substituted in order for ? characters), or a hash of named placeholders (which will be substituted for :key phrases).
Whether to surround the expression with parantheses
The literal string containing placeholders. This can also be an array of strings, where each arg in args goes between the string elements.
Public Class Methods
Create an object with the given string, placeholder arguments, and parens flag.
# File lib/sequel/sql.rb 1623 def initialize(str, args, parens=false) 1624 @str = str 1625 @args = args.is_a?(Array) && args.length == 1 && (v = args[0]).is_a?(Hash) ? v : args 1626 @parens = parens 1627 freeze 1628 end
Public Instance Methods
Return a copy of the that will be surrounded by parantheses.
# File lib/sequel/sql.rb 1631 def with_parens 1632 @parens ? self : self.class.new(@str, @args, true) 1633 end