Class: Sequel::Postgres::PGArray::JSONCreator

Inherits:

Creator

• Object
• Creator
• Sequel::Postgres::PGArray::JSONCreator

Defined in:

lib/sequel/extensions/pg_array.rb

Overview

Callable object that takes the input string and parses it using. a JSON parser. This should be faster than the standard Creator, but only handles integer types correctly.

Constant Summary

SUBST =

Character conversion map mapping input strings to JSON replacements

{'{'.freeze=>'['.freeze, '}'.freeze=>']'.freeze, 'NULL'.freeze=>'null'.freeze}

SUBST_RE =

Regular expression matching input strings to convert

%r[\{|\}|NULL].freeze

Instance Attribute Summary

Attributes inherited from Creator

#converter, #type

Instance Method Summary

• #call(string) ⇒ Object

  Parse the input string by using a gsub to convert non-JSON characters to JSON, running it through a regular JSON parser.

Methods inherited from Creator

#initialize

Constructor Details

This class inherits a constructor from Sequel::Postgres::PGArray::Creator

Instance Method Details

#call(string) ⇒ Object

Parse the input string by using a gsub to convert non-JSON characters to JSON, running it through a regular JSON parser. If a converter is used, a recursive map of the output is done to make sure that the entires in the correct type.

# File 'lib/sequel/extensions/pg_array.rb', line 477

def call(string)
  array = Sequel.parse_json(string.gsub(SUBST_RE){|m| SUBST[m]})
  array = Sequel.recursive_map(array, @converter) if @converter
  PGArray.new(array, @type)
end