Module: Coupler::Helpers

Defined in:
lib/coupler/helpers.rb

Instance Method Summary collapse

Instance Method Details

#add_javascript(*names) ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 29

def add_javascript(*names)
  javascripts.push(*names)
end

#add_stylesheet(*names) ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 43

def add_stylesheet(*names)
  stylesheets.push(*names)
end

#breadcrumbs ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 51

def breadcrumbs
  # This method is fun but silly.
  if @breadcrumbs
    url = ""
    %{<div id="breadcrumbs">} +
      @breadcrumbs.inject([]) do |arr, obj|
        strings =
          case obj
          when String
            [obj]
          when nil
            []
          else
            class_name = obj.class.to_s.split("::")[-1]
            if obj.new?
              ["New #{class_name}"]
            elsif
              url += "/#{class_name.downcase}s/#{obj.id}"
              if obj.respond_to?(:name)
                ["#{class_name}s", %{<a href="#{url}">#{obj.name}</a>}]
              else
                [%{<a href="#{url}">#{class_name} ##{obj.id}</a>}]
              end
            end
          end
        arr.push(*strings.collect { |x| %{<div class="crumb">#{x}</div>} })
      end.join(%{<div class="crumb">/</div>}) +
      %{</div><div class="clear"></div>}
  end
end

#cycle(even, odd) ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 117

def cycle(even, odd)
  (@_cycle = !@_cycle) ? even : odd
end

#delete_link(text, url) ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 47

def delete_link(text, url)
  %^<a href="#{url}" onclick="if (confirm('Are you sure?')) { var f = document.createElement('form'); f.style.display = 'none'; this.parentNode.appendChild(f); f.method = 'POST'; f.action = this.href; var m = document.createElement('input'); m.setAttribute('type', 'hidden'); m.setAttribute('name', '_method'); m.setAttribute('value', 'delete'); f.appendChild(m); f.submit(); }; return false;">#{text}</a>^
end

#error_messages_for(object) ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 3

def error_messages_for(object)
  return ""   if object.nil? || object.errors.empty?

  retval = "<div class='errors'><h3>Errors detected:</h3><ul>"
  object.errors.each do |(attr, messages)|
    messages.each do |message|
      retval += "<li>"
      retval += attr.to_s.tr("_", " ").capitalize + " " if attr != :base
      retval += "#{message}</li>"
    end
  end
  retval += "</ul></div><div class='clear'></div>"

  retval
end

#field_type(resource, field) ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 121

def field_type(resource, field)
  result = field.final_type
  if !resource.import_id
    result += " (#{field.final_db_type})"
  end
  result
end

#form_tag_for(obj, options) ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 96

def form_tag_for(obj, options)
  base_url = options[:base_url]
  action, method = if obj.new?
                     [base_url, ""]
                   else
                     ["#{base_url}/#{obj.id}", %{<div style="display: none;"><input type="hidden" name="_method" value="put" /></div>}]
                   end
  %{<form action="#{action}" method="post">#{method}}
end

#humanize(string) ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 82

def humanize(string)
  string.to_s.gsub(/_+/, " ").capitalize
end

#javascript_includes ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 23

def javascript_includes
  javascripts.collect do |name|
    %{<script type="text/javascript" src="/js/#{name}"></script>}
  end.join("\n  ")
end

#javascripts ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 19

def javascripts
  @javascripts ||= %w{jquery.min.js jquery.timeago.js jquery-ui.min.js application.js}
end

#local_ip ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 106

def local_ip
  orig, Socket.do_not_reverse_lookup = Socket.do_not_reverse_lookup, true  # turn off reverse DNS resolution temporarily

  UDPSocket.open do |s|
    s.connect '64.233.187.99', 1
    s.addr.last
  end
ensure
  Socket.do_not_reverse_lookup = orig
end

#stylesheet_links ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 37

def stylesheet_links
  stylesheets.collect do |name|
    %{<link rel="stylesheet" type="text/css" media="all" href="/css/#{name}" />}
  end.join("\n  ")
end

#stylesheets ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 33

def stylesheets
  @stylesheets ||= %w{reset.css text.css 960.css jquery-ui.css jquery.treeview.css style.css}
end

#timeago(time, klass = nil, tag = "div") ⇒ Object 



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# File 'lib/coupler/helpers.rb', line 86

def timeago(time, klass = nil, tag = "div")
  if time.nil?
    "Never"
  else
    dt = time.send(:to_datetime)
    klass = "timeago" + (klass.nil? ? "" : " #{klass}")
    %{<#{tag} class="#{klass}" title="#{dt.to_s}">#{time.to_s}</#{tag}>}
  end
end