Class: Liquid::Extends

Inherits:
Block show all
Defined in:
lib/liquid/tags/extends.rb

Overview

Extends allows designer to use template inheritance

{% extends home %}
{% block content }Hello world{% endblock %}

Constant Summary collapse

Syntax = 
/(#{QuotedFragment}+)/

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 Block

#block_delimiter, #block_name, #create_variable, #parse, #render, #unknown_tag

Methods inherited from Tag

#name, #parse, #render

Constructor Details

#initialize(tag_name, markup, tokens, context) ⇒ Extends

Returns a new instance of Extends.



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# File 'lib/liquid/tags/extends.rb', line 11

def initialize(tag_name, markup, tokens, context)
  if markup =~ Syntax
    @template_name = $1.gsub(/["']/o, '').strip
  else
    raise SyntaxError.new("Error in tag 'extends' - Valid syntax: extends [template]")
  end

  @context = context

  @parent_template = parse_parent_template

  prepare_parsing

  super

  end_tag
end

Instance Method Details

#end_tag ⇒ Object 



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# File 'lib/liquid/tags/extends.rb', line 33

def end_tag
  # replace the nodelist by the new one
  @nodelist = @parent_template.root.nodelist.clone

  @parent_template = nil # no need to keep it
end

#prepare_parsing ⇒ Object 



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# File 'lib/liquid/tags/extends.rb', line 29

def prepare_parsing
  @context.merge!(:blocks => self.find_blocks(@parent_template.root.nodelist))
end