Class: Solid::LiquidExtensions::ForTag

Inherits:
Block
  • Object
show all
Extended by:
TagHighjacker
Defined in:
lib/solid/liquid_extensions/for_tag.rb

Overview

This for block reimplementation is deliberately backward incompatible since all strange features supported by the original for loop like “reversed” or “limit: 20 offset: 40” are favourably replaced by pure ruby methods like ‘Array#reversed` or `Array#slice`

Instance Method Summary collapse

Methods included from TagHighjacker

load!, tag_name, unload!

Methods inherited from Block

#render

Methods included from Element

#arguments, #current_context, included, #with_context

Constructor Details

#initialize(tag_name, expression, tokens, context = {}) ⇒ ForTag

Returns a new instance of ForTag.



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# File 'lib/solid/liquid_extensions/for_tag.rb', line 13

def initialize(tag_name, expression, tokens, context = {})
  @variable_name, iterable_expression = expression.split(/\s+in\s+/, 2).map(&:strip)
  super(tag_name, iterable_expression, tokens, context)
end

Instance Method Details

#display(collection) ⇒ Object 



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# File 'lib/solid/liquid_extensions/for_tag.rb', line 18

def display(collection)
  forloop = loop_for(collection)
  output = []
  collection = [] unless collection.respond_to?(:each_with_index)
  collection.each_with_index do |element, index|
    current_context.stack do
      current_context[@variable_name] = element.to_liquid
      current_context['forloop'] = forloop
      output << yield
      forloop.inc!
    end
  end
  output.join
end