Module: SmarterDates

Defined in:
lib/smarter_dates/parser.rb,
lib/smarter_dates/version.rb,
lib/generators/smarter_dates/install_generator.rb

Defined Under Namespace

Classes: InstallGenerator

Constant Summary collapse

VERSION = 
'0.2.9'

Class Method Summary collapse

Class Method Details

.included(klass) ⇒ Object

:nodoc:



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# File 'lib/smarter_dates/parser.rb', line 5

def self.included(klass) # :nodoc:
  attr_accessor :dt_attributes

  @dt_attributes = []
  db_migrated = true
  if defined?(Rails)
    begin
      @dt_attributes.concat(klass.column_names.select { |k| k.match(/_(?:at|on|dt|d)$/) })
      Rails.logger.debug(RuntimeError, "unused include - #{klass.class.to_s} does not have any attributes ending in _at, _on, _dt, or _d") if db_migrated && @dt_attributes.empty?
    rescue ActiveRecord::StatementInvalid => _
    rescue => err
      Rails.logger.debug(err.inspect)
    end
  else
    @dt_attributes.concat(klass.instance_methods.select { |k| k.match(/_(?:at|on|dt|d)$/) })
  end

  # :call-seq:
  #   _on(string)
  #   _at(string)
  #   _dt(string)
  #   _d(string)
  #
  # Any attribute ending in _at, _on, _dt, or _d are parsed by Chronic.parse
  # (for flexibility).  Values are passed as is to Chronic.parse()
  #
  # == Arguments
  # <tt>string</tt>:: A string

  @dt_attributes.each do |k|
    parse = Proc.new do |val|
      begin
        dt = Chronic.parse(val.to_s)
      rescue
        dt = DateTime.parse(val.to_s)
      rescue
        dt = Date.parse(val)
      rescue
        dt = val
      end
      if defined?(Rails)
        if dt && k.match(/_(?:on|d)$/)
          self[k] = dt.to_date
        elsif dt
          self[k] = dt.to_datetime
        else
          self[k] = dt
        end
      else
        instance_variable_set(:"@#{k}", dt)
      end
    end
    klass.send(:define_method, "#{k}=".to_sym, &parse)
  end
end