Class: Inversion::Template::TimeDeltaTag

Inherits:
AttrTag show all
Defined in:
lib/inversion/template/timedeltatag.rb

Overview

Inversion time delta tag.

This tag is a derivative of the ‘attr’ tag that transforms the results of its method call to a Time object (if it isn’t already), and then generates an English description of the different between it and the current time.

Syntax

Updated <?timedelta entry.update_date ?>.

Constant Summary collapse

MINUTES = 
60
HOURS = 
60  * MINUTES
DAYS = 
24  * HOURS
WEEKS = 
7   * DAYS
MONTHS = 
30  * DAYS
YEARS = 
365.25 * DAYS

Constants inherited from Tag

Inversion::Template::Tag::TAG_PLUGIN_PATTERN

Instance Attribute Summary

Attributes inherited from AttrTag

#format, #methodchain, #name

Attributes inherited from CodeTag

#body, #identifiers

Attributes inherited from Tag

#body

Attributes inherited from Node

#colnum, #linenum

Instance Method Summary collapse

Methods inherited from AttrTag

#as_comment_body, #evaluate, #initialize

Methods inherited from CodeTag

inherit_tag_patterns, #initialize, tag_pattern, tag_patterns

Methods included from AbstractClass

included

Methods included from AbstractClass::ClassMethods

#inherited, #pure_virtual

Methods inherited from Tag

#as_comment_body, create, #derivatives, inherited, #initialize, load, load_all, #tagname, types, #types

Methods included from MethodUtilities

#singleton_attr_accessor, #singleton_attr_reader, #singleton_attr_writer

Methods inherited from Node

#after_appending, #after_rendering, #as_comment_body, #before_appending, #before_rendering, #initialize, #is_container?, #location

Constructor Details

This class inherits a constructor from Inversion::Template::AttrTag

Instance Method Details

#render(renderstate) ⇒ Object

Render the tag.



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# File 'lib/inversion/template/timedeltatag.rb', line 41

def render( renderstate )
  val = super( renderstate )
  time = nil
  omit_decorator = false

  if val.respond_to?( :key )
    val, omit_decorator = val.values_at( :time, :omit_decorator )
  end

  if val.respond_to?( :to_time )
    time = val.to_time
  elsif val.is_a?( Numeric )
    time = Time.at( val )
  else
    time = Time.parse( val.to_s )
  end

  now = Time.now
  if now > time
    seconds = now - time
    period = timeperiod( seconds )
    period += ' ago' unless omit_decorator
    return period
  else
    seconds = time - now
    period = timeperiod( seconds )
    period += ' from now' unless omit_decorator
    return period
  end
end