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Contents
module Locomotive
module Liquid
module Tags
# Consume web services as easy as pie directly in liquid !
#
# Usage:
#
# {% consume blog from 'http://nocoffee.tumblr.com/api/read.json?num=3' username: 'john', password: 'easy', format: 'json', expires_in: 3000 %}
# {% for post in blog.posts %}
# {{ post.title }}
# {% endfor %}
# {% endconsume %}
#
class Consume < ::Liquid::Block
Syntax = /(#{::Liquid::VariableSignature}+)\s*from\s*(#{::Liquid::QuotedString}+)/
def initialize(tag_name, markup, tokens, context)
if markup =~ Syntax
@target = $1
@url = $2.gsub(/['"]/, '')
@options = {}
markup.scan(::Liquid::TagAttributes) do |key, value|
@options[key] = value if key != 'http'
end
@expires_in = (@options.delete('expires_in') || 0).to_i
@cache_key = Digest::SHA1.hexdigest(@target)
else
raise ::Liquid::SyntaxError.new("Syntax Error in 'consume' - Valid syntax: consume <var> from \"<url>\" [username: value, password: value]")
end
super
end
def render(context)
render_all_and_cache_it(context)
end
protected
def render_all_and_cache_it(context)
Rails.cache.fetch(@cache_key, :expires_in => @expires_in, :force => @expires_in == 0) do
context.stack do
context.scopes.last[@target.to_s] = Locomotive::Httparty::Webservice.consume(@url, @options.symbolize_keys)
render_all(@nodelist, context)
end
end
end
end
::Liquid::Template.register_tag('consume', Consume)
end
end
end
Version data entries
21 entries across 21 versions & 1 rubygems