Module: BarkestCore::BooleanParser

Included in:
MsSqlFunction
Defined in:
lib/barkest_core/concerns/boolean_parser.rb

Overview

This module will add boolean parsing functions to a class.

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object

:nodoc:



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# File 'lib/barkest_core/concerns/boolean_parser.rb', line 34

def self.included(base)
  base.class_eval do

    ##
    # Parses for a 3-way boolean.
    #
    # If the value is nil, then nil is returned.
    # If the value is 'true', 'yes', 'on', '1', 't', or 'y' then true is returned.
    # Otherwise false is returned.
    #
    def self.parse_for_boolean_column(value)
      BarkestCore::BooleanParser.parse_for_boolean_column value
    end

    ##
    # Parses the value for a 3-way SQL filter.
    #
    # If the value is nil, then 'NULL' is returned.
    # If the value parses to true, then '1' is returned.
    # Otherwise '0' is returned.
    #
    def self.parse_for_boolean_filter(value)
      BarkestCore::BooleanParser.parse_for_boolean_filter value
    end

  end
end

.parse_for_boolean_column(value) ⇒ Object

Parses for a 3-way boolean.

If the value is nil, then nil is returned. If the value is ‘true’, ‘yes’, ‘on’, ‘1’, ‘t’, or ‘y’ then true is returned. Otherwise false is returned.



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# File 'lib/barkest_core/concerns/boolean_parser.rb', line 14

def self.parse_for_boolean_column(value)
  return nil if value.to_s.blank?
  value = value.to_s.downcase
  %w(true yes on 1 -1 t y).include? value
end

.parse_for_boolean_filter(value) ⇒ Object

Parses the value for a 3-way SQL filter.

If the value is nil, then ‘NULL’ is returned. If the value parses to true, then ‘1’ is returned. Otherwise ‘0’ is returned.



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# File 'lib/barkest_core/concerns/boolean_parser.rb', line 27

def self.parse_for_boolean_filter(value)
  value = parse_for_boolean_column(value)
  return 'NULL' if value.nil?
  value ? '1' : '0'
end