Problems with Google Maps

Rails
1

Hello everybody,

I’m working with Google Maps and i want to display a map for an event
that i have in my aplicaction.

When I clik on the link to view the map the bwroser show me the next
fail:

NoMethodError in Conclave/events#map

Showing vendor/plugins/tog_conclave/app/views/conclave/events/
map.html.erb where line #5 raised:

undefined method `to_html’ for nil:NilClass

Extracted source (around line #5):

2: <%= GMap.header %>
3:
4:
5: <%= @map.to_html %>
6: <%= @map.div(:width => 550, :height => 350) %>
7:

This link appear in anothe view like this:

  • Direccin: <%= link_to @event.venue, map_conclave_event_path(@event), :popup => [@event.venue, 'width=600,height=400']

    and in the controller i have the next code:

    def show
    generate_map
    end

    def map
    generate_map
    end

    private

    def generate_map
  return if [email protected]_address || @event.venue_address == ''
  loc = gg.locate @event.venue_address
  @map = GMap.new("map_div_id")
  @map.control_init(:large_map => true, :map_type => true)
  @map.center_zoom_init([loc.latitude, loc.longitude],14)
  marker = GMarker.new([loc.latitude,loc.longitude],
           :title => @event.title,
           :info_window => (@event.venue_address ? loc.address :

    “#{loc.address} *specified address unknown”))
    @map.overlay_init(marker)

    rescue
  @map = nil
end

    So i want to know what is the problem?

    Can anyone help me?

    Thanks for you help.

    • 2

    On 3 November 2010 10:49, h0bit [email protected] wrote:

    Showing vendor/plugins/tog_conclave/app/views/conclave/events/
    map.html.erb where line #5 raised:

    undefined method `to_html’ for nil:NilClass

    Extracted source (around line #5):

    2: <%= GMap.header %>
    3:
    4:
    5: <%= @map.to_html %>

    The error is saying that @map is nil

    and in the controller i have the next code:

    @map.overlay_init(marker)

    rescue
    @map = nil

    Could it be doing this?

    You could use ruby-debug to break into your app and see what is
    happening. Have a look at the Rails Guide on Debugging.

    Colin

    3

    No i’m using google-geocode

    4

    No i’m using googl-geocode and ym4r-gm

    5

    What are you using to work with google maps?

    Did you tried go_maps?

    https://github.com/gonow/go_maps

    On 3 November 2010 08:49, h0bit [email protected] wrote:

    Showing vendor/plugins/tog_conclave/app/views/conclave/events/
    6: <%= @map.div(:width => 550, :height => 350) %>

    def generate_map

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