Class: Liquid::Decrement

Inherits:

Tag

• Object
• Tag
• Liquid::Decrement

show all

Defined in:

lib/liquid/tags/decrement.rb

Overview

Hello: -1
Hello: -2
Hello: -3

Instance Attribute Summary

Attributes inherited from Tag

#nodelist

Instance Method Summary (collapse)

• - (Decrement) initialize(tag_name, markup, tokens) constructor

  A new instance of Decrement.

• - (Object) render(context)

Methods inherited from Tag

#name, #parse

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# File 'lib/liquid/tags/decrement.rb', line 22

def initialize(tag_name, markup, tokens)      
  @variable = markup.strip

  super    
end

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# File 'lib/liquid/tags/decrement.rb', line 28

def render(context)
  value = context.environments.first[@variable] ||= 0
  value = value - 1
  context.environments.first[@variable] = value
  value.to_s
end