66 lines
1.8 KiB
Ruby
66 lines
1.8 KiB
Ruby
#-- encoding: UTF-8
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#-- copyright
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# ChiliProject is a project management system.
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#
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# Copyright (C) 2010-2013 the ChiliProject Team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# See doc/COPYRIGHT.rdoc for more details.
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#++
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module ChiliProject
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module Liquid
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module Variables
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class LazyVariable
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def initialize(context, &block)
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@block = block
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@context = context
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end
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def to_liquid()
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(@block.arity == 0) ? @block.call : @block.call(@context)
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end
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end
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# Register a Liquid variable.
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# Pass a value to register a fixed variable or a block to create a lazy
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# evaluated variable. The block can take the current context
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def self.register(name, value=nil, &block)
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var = block_given? ? Proc.new(){|ctx| LazyVariable.new(ctx, &block)} : value
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all[name.to_s] = var
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end
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def self.all
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@variables ||= {}
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end
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register "tags" do
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::Liquid::Template.tags.keys.sort
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end
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register "variables" do |context|
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vars = []
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vars = context.environments.first.keys.reject do |var|
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# internal variable
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var == "text"
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end if context.environments.present?
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vars += context.scopes.collect(&:keys).flatten
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vars.uniq.sort
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end
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register "today" do
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Date.today.to_s
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end
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# DEPRACATED: This is just a hint on how to use Liquid introspection
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register "macro_list",
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"Use '{{ variables | to_list: \"Variables:\" }}' to see all Liquid variables and '{{ tags | to_list: \"Tags:\" }}' to see all of the Liquid tags."
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end
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end
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end
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