Class: Liquid::Unless

Inherits:
If show all
Defined in:
lib/liquid/tags/unless.rb

Overview

Unless is a conditional just like ‘if’ but works on the inverse logic.

{% unless x < 0 %} x is greater than zero {% end %}

Constant Summary

Constants inherited from If

If::ExpressionsAndOperators, If::Syntax, If::SyntaxHelp

Constants inherited from Block

Block::ContentOfVariable, Block::FullToken, Block::IsTag, Block::IsVariable

Instance Attribute Summary

Attributes inherited from Tag

#context, #nodelist

Instance Method Summary collapse

Methods inherited from If

#initialize, #unknown_tag

Methods inherited from Block

#block_delimiter, #block_name, #create_variable, #end_tag, #parse, #unknown_tag

Methods inherited from Tag

#initialize, #name, #parse

Constructor Details

This class inherits a constructor from Liquid::If

Instance Method Details

#render(context) ⇒ Object 



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# File 'lib/liquid/tags/unless.rb', line 10

def render(context)
  context.stack do

    # First condition is interpreted backwards ( if not )
    block = @blocks.first
    unless block.evaluate(context)
      return render_all(block.attachment, context)
    end

    # After the first condition unless works just like if
    @blocks[1..-1].each do |block|
      if block.evaluate(context)
        return render_all(block.attachment, context)
      end
    end
    ''
  end
end