Class Sequel::Dataset::PlaceholderLiteralizer::Argument
In: lib/sequel/dataset/placeholder_literalizer.rb
Parent: Object

A placeholder argument used by the PlaceholderLiteralizer. This records the offset that the argument should be used in the resulting SQL.

Methods

new   sql_literal_append   transform  

Public Class methods

new(recorder, pos, transformer=nil)

Set the recorder, the argument position, and any transforming block to use for this placeholder.

[Source]

    # File lib/sequel/dataset/placeholder_literalizer.rb, line 50
50:         def initialize(recorder, pos, transformer=nil)
51:           @recorder = recorder
52:           @pos = pos
53:           @transformer = transformer
54:           freeze
55:         end

Public Instance methods

sql_literal_append(ds, sql)

Record the SQL query offset, argument position, and transforming block where the argument should be literalized.

[Source]

    # File lib/sequel/dataset/placeholder_literalizer.rb, line 59
59:         def sql_literal_append(ds, sql)
60:           if ds.opts[:placeholder_literal_null]
61:             ds.send(:literal_append, sql, nil)
62:           else
63:             @recorder.use(sql, @pos, @transformer)
64:           end
65:         end
transform(&block)

Return a new Argument object for the same recorder and argument position, but with a different transformer block.

[Source]

    # File lib/sequel/dataset/placeholder_literalizer.rb, line 69
69:         def transform(&block)
70:           Argument.new(@recorder, @pos, block)
71:         end

[Validate]