Problems with Google Maps

h0bit

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Nov 3, 2010, 6:49:58 AM11/3/10

to Ruby on Rails: Talk

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: </head>
4: <body>
5: <%= @map.to_html %>
6: <%= @map.div(:width => 550, :height => 350) %>
7: </body>

This link appear in anothe view like this:

<li>Dirección: <%= 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 !@event.venue_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.

Colin Law

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Nov 3, 2010, 7:59:55 AM11/3/10

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On 3 November 2010 10:49, h0bit <jsanta...@gmail.com> wrote:
> 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: </head>
> 4: <body>
> 5: <%= @map.to_html %>

The error is saying that @map is 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

Raul Souza Lima

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Nov 3, 2010, 8:47:38 AM11/3/10

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What are you using to work with google maps?

Did you tried go_maps?

https://github.com/gonow/go_maps

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h0bit

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Nov 5, 2010, 5:42:04 AM11/5/10

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No i'm using google-geocode

On 3 nov, 12:47, Raul Souza Lima <raulsouzal...@gmail.com> wrote:
> What are you using to work with google maps?
>
> Did you tried go_maps?
>
> https://github.com/gonow/go_maps
>

> > return if !...@event.venue_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.
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Ruby on Rails: Talk" group.
> > To post to this group, send email to rubyonra...@googlegroups.com.
> > To unsubscribe from this group, send email to

> > rubyonrails-ta...@googlegroups.com<rubyonrails-talk%2Bunsu...@googlegroups.com>
> > .

> > For more options, visit this group at
> >http://groups.google.com/group/rubyonrails-talk?hl=en.
>
> --
> from Brazil, Raul Souza Lima 

> Vegetarian, geek, born in São Paulo - Brazil.http://webxperience.com.br/http://raulsouzalima.comhttp://www.linkedin.com/in/raulsouzalima

h0bit

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Nov 5, 2010, 5:43:03 AM11/5/10

to Ruby on Rails: Talk

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

On 3 nov, 12:47, Raul Souza Lima <raulsouzal...@gmail.com> wrote:

> What are you using to work with google maps?
>
> Did you tried go_maps?
>
> https://github.com/gonow/go_maps
>

> > return if !...@event.venue_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.
>
> > --
> > You received this message because you are subscribed to the Google Groups
> > "Ruby on Rails: Talk" group.
> > To post to this group, send email to rubyonra...@googlegroups.com.
> > To unsubscribe from this group, send email to

> > rubyonrails-ta...@googlegroups.com<rubyonrails-talk%2Bunsu...@googlegroups.com>
> > .

> > For more options, visit this group at
> >http://groups.google.com/group/rubyonrails-talk?hl=en.
>
> --
> from Brazil, Raul Souza Lima 

> Vegetarian, geek, born in São Paulo - Brazil.http://webxperience.com.br/http://raulsouzalima.comhttp://www.linkedin.com/in/raulsouzalima

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