Module: Clevic::GenericFormat

Included in:
Field
Defined in:
lib/clevic/generic_format.rb

Overview

Format values for display / edit. Essentially a common interface for % for Strings and strftime for Dates and Times.

includers must provide meta and display

Instance Method Summary collapse

Instance Method Details

#do_generic_format(format, value) ⇒ Object

apply format to value. Use strftime for date_time types, or % for everything else. If format is a proc, pass value to it.



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# File 'lib/clevic/generic_format.rb', line 28

def do_generic_format( format, value )
  begin
    unless format.nil?
      if format.is_a? Proc
        format.call( value )
      else
        if is_date_time?( value )
          value.strftime( format )
        else
          format % value
        end
      end
    else
      value
    end
  rescue Exception => e
    puts "self: #{self.inspect}"
    puts "format: #{format.inspect}"
    puts "value.class: #{value.class.inspect}"
    puts "value: #{value.inspect}"
    puts e.message
    puts e.backtrace
    nil
  end
end

#is_date_time?(value) ⇒ Boolean

Return true if the field is a date, datetime, time or timestamp. If display is nil, the value is calculated, so we need to check the value. Otherwise use the field metadata. Cache the result for the first non-nil value.

Returns:

  • (Boolean) 


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# File 'lib/clevic/generic_format.rb', line 12

def is_date_time?( value )
  if value.nil?
    false
  else
    @is_date_time ||=
    if display.nil?
      [:time, :date, :datetime, :timestamp].include?( meta.type )
    else
      # it's a virtual field, so we need to use the value
      value.is_a?( Date ) || value.is_a?( Time )
    end
  end
end