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Contents
module Dugway
module Tags
class Get < ::Liquid::Block
Syntax = /((#{ Liquid::QuotedFragment })\s+)?(\w+)\s+from\s+(#{ Liquid::QuotedFragment }+)/
def initialize(tag_name, markup, tokens)
if markup =~ Syntax
@number_to_get = $1.present? ? $2 : nil
@variable_name = $3
@collection_name = $4
@attributes = {}
markup.scan(Liquid::TagAttributes) { |key, value|
@attributes[key] = value
}
else
raise SyntaxError.new("Syntax Error in tag 'get' - Valid syntax: get [number] [items] from [collection] order:[order]")
end
super
end
def render(context)
@context = context
@number_to_get = if context[@number_to_get].present?
context[@number_to_get]
elsif @number_to_get.present?
@number_to_get.to_i
elsif @attributes['limit'].present?
if context[@attributes['limit']].present?
context[@attributes['limit']]
else
@attributes['limit'].to_i
end
else
nil
end
@order = context[@attributes['order']].present? ? context[@attributes['order']] : @attributes['order']
context.stack do
context['internal'] = {
'per_page' => @number_to_get,
'order' => @order,
'page' => nil
}
context[@variable_name] = context[@collection_name]
raise ArgumentError.new("Cannot get array '#{ @collection_name }'. Not found.") if context[@variable_name].total_entries.nil?
render_all @nodelist, context
end
end
end
end
end
Version data entries
54 entries across 54 versions & 1 rubygems