module Zhong::WebHelpers

Most of the following helpers are copied from a previous version of the Sidekiq project available here: github.com/mperham/sidekiq/blob/2c9f7662fcdcb52d59b72ba0fe7dc5f963de4904/lib/sidekiq/web_helpers.rb

Public Instance Methods

capture(&block) click to toggle source

Simple capture method for erb templates. The origin was capture method from sinatra-contrib library.

# File lib/zhong/web_helpers.rb, line 10
def capture(&block)
  block.call
  eval("", block.binding)
end
csrf_tag() click to toggle source
# File lib/zhong/web_helpers.rb, line 41
def csrf_tag
  "<input type='hidden' name='authenticity_token' value='#{session[:csrf]}'/>"
end
current_path() click to toggle source
# File lib/zhong/web_helpers.rb, line 19
def current_path
  @current_path ||= request.path_info.gsub(%r(^\/),"")
end
display_args(args, truncate_after_chars = 2000) click to toggle source
# File lib/zhong/web_helpers.rb, line 35
def display_args(args, truncate_after_chars = 2000)
  args.map do |arg|
    h(truncate(to_display(arg), truncate_after_chars))
  end.join(", ")
end
environment_title_prefix() click to toggle source
# File lib/zhong/web_helpers.rb, line 76
def environment_title_prefix
  environment = ENV["RAILS_ENV"] || ENV["RACK_ENV"] || "development"

  "[#{environment.upcase}] " unless environment == "production"
end
h(text) click to toggle source
# File lib/zhong/web_helpers.rb, line 68
def h(text)
  ::Rack::Utils.escape_html(text)
rescue ArgumentError => e
  raise unless e.message.eql?("invalid byte sequence in UTF-8")
  text.encode!("UTF-16", "UTF-8", invalid: :replace, replace: "").encode!("UTF-8", "UTF-16")
  retry
end
number_with_delimiter(number) click to toggle source
# File lib/zhong/web_helpers.rb, line 55
def number_with_delimiter(number)
  begin
    Float(number)
  rescue ArgumentError, TypeError
    return number
  end

  options = {delimiter: ",", separator: "."}
  parts = number.to_s.to_str.split(".")
  parts[0].gsub!(/(\d)(?=(\d\d\d)+(?!\d))/, "\\1#{options[:delimiter]}")
  parts.join(options[:separator])
end
product_version() click to toggle source
# File lib/zhong/web_helpers.rb, line 82
def product_version
  "Zhong v#{Zhong::VERSION}"
end
relative_time(time) click to toggle source
# File lib/zhong/web_helpers.rb, line 23
def relative_time(time)
  if time
    %(<time datetime="#{time.getutc.iso8601}">#{time}</time>)
  else
    "never"
  end
end
root_path() click to toggle source
# File lib/zhong/web_helpers.rb, line 15
def root_path
  "#{env['SCRIPT_NAME']}/"
end
to_display(arg) click to toggle source
# File lib/zhong/web_helpers.rb, line 45
def to_display(arg)
  arg.inspect
rescue
  begin
    arg.to_s
  rescue => ex
    "Cannot display argument: [#{ex.class.name}] #{ex.message}"
  end
end
truncate(text, truncate_after_chars = 2000) click to toggle source
# File lib/zhong/web_helpers.rb, line 31
def truncate(text, truncate_after_chars = 2000)
  truncate_after_chars && text.size > truncate_after_chars ? "#{text[0..truncate_after_chars]}..." : text
end