Sha256: 28cf7b06a85248929b005aa7459c2469bf000251a7495c20438911a54c3d1788
Contents?: true
Size: 836 Bytes
Versions: 12
Compression:
Stored size: 836 Bytes
Contents
module Liquid
# increment is used in a place where one needs to insert a counter
# into a template, and needs the counter to survive across
# multiple instantiations of the template.
# (To achieve the survival, the application must keep the context)
#
# if the variable does not exist, it is created with value 0.
# Hello: {% increment variable %}
#
# gives you:
#
# Hello: 0
# Hello: 1
# Hello: 2
#
class Increment < Tag
def initialize(tag_name, markup, tokens)
@variable = markup.strip
super
end
def render(context)
value = context.environments.first[@variable] ||= 0
context.environments.first[@variable] = value + 1
value.to_s
end
private
end
Template.register_tag('increment', Increment)
end
Version data entries
12 entries across 12 versions & 3 rubygems