class GtmOnRails::DataLayer
Attributes
objects[RW]
objects_before_page_view[RW]
Public Class Methods
new(*args)
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# File lib/gtm_on_rails/models/data_layer.rb, line 8 def initialize(*args) options = args.extract_options! @objects = [args].flatten # @objects are instances of GTM::DataLayerObject @objects_before_page_view = [] end
Public Instance Methods
method_missing(method, *args, &block)
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Calls superclass method
# File lib/gtm_on_rails/models/data_layer.rb, line 57 def method_missing(method, *args, &block) if @objects.respond_to?(method) @objects.send(method, *args, &block) else super end end
print_on_html(before_page_view: false)
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# File lib/gtm_on_rails/models/data_layer.rb, line 53 def print_on_html(before_page_view: false) content_tag(:script, self.to_js(before_page_view: before_page_view)) end
push(args, **options)
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# File lib/gtm_on_rails/models/data_layer.rb, line 15 def push(args, **options) args = [args].flatten args.each do |object| case object when Hash obj = GtmOnRails::DataLayer::Object.new(object) when GtmOnRails::DataLayer::Object obj = object end if options[:before_page_view] @objects_before_page_view << obj else @objects << obj end end end
respond_to?(method, include_all=false)
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Calls superclass method
# File lib/gtm_on_rails/models/data_layer.rb, line 65 def respond_to?(method, include_all=false) Array.new.respond_to?(method, include_all) || super end
to_js(before_page_view: false)
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# File lib/gtm_on_rails/models/data_layer.rb, line 33 def to_js(before_page_view: false) js_codes = [] js_codes << "var dataLayer = dataLayer || [];" objs = before_page_view ? @objects_before_page_view : @objects objs.each do |data_layer_object| # dataLayer size limit exception size = data_layer_object.to_json.bytesize if size > GtmOnRails.config.data_layer_limit_byte_size Rails.logger.warn("DataLayer bytesize is over limit #{GtmOnRails.config.data_layer_limit_byte_size} bytes. Size is #{size} bytes.") next end js_codes << data_layer_object.to_js end return js_codes.join.html_safe end