Cartographer shows correct info box BUT over wrong marker

Hi guys (and gals),

The code formatting is so nice on SO.com, so I thought I’d just share
my post in hopes that someone from the group can help.

Feel free to answer back via email if you don’t have an SO account.

Thanks!

Abram

On 10 March 2012 21:12, Abram [email protected] wrote:

Hi guys (and gals),

The code formatting is so nice on SO.com, so I thought I’d just share
my post in hopes that someone from the group can help.

http://stackoverflow.com/questions/9643786/cartographer-shows-correct-info-box-but-over-wrong-marker

I may be wrong but I think that most here will not want to take the
time to go over there to look at your problem. If you want to ask a
question here it is best to ask it.

Colin

Thanks for that Colin.

I am trying to create a map with markers for Dispensers pulled from
the DB. I am able to successfully do this, however, whenever I click
on the markers the info box always appears over the same marker. The
CORRECT dispenser’s info box is popping up on the map, but over the
wrong marker! Has anyone run across this issue?

In my controller:

def find_map

@location = Location.new
@location.address = params[:location][:address]
@latlon = @location.geocode
@dispensers = Dispenser.near(@latlon)
@numrecords = 0
@lat = []
@long = []
@user_id = []
@dispensers.each do |x|
  @lat[@numrecords] = x.latitude
  @long[@numrecords] = x.longitude
  @user_id[@numrecords] = x.user_id
  @numrecords += 1
end

@map = Cartographer::Gmap.new( 'map')
@map.zoom = :bound
@icon = Cartographer::Gicon.new()
@map.icons <<  @icon

@count = 0
@numrecords.times do
  markername = "marker#{@count}"
  markername = Cartographer::Gmarker.new(:name=> "Business",

:marker_type => “Building”,
:position => [@lat[@count], @long[@count]],
:info_window_url =>
“/bio/#{@user_id[@count]}”, :icon => @icon)

  @map.markers << markername
  @count += 1
end

In my show.html.erb

<%= raw Cartographer::Header.new.to_s %>
<%= raw @map.to_html %>

[Map]

Thanks again

On Mar 11, 2012, at 2:56 PM, Abram wrote:

def find_map
@lat[@numrecords] = x.latitude
@count = 0
end
In my show.html.erb

<%= raw Cartographer::Header.new.to_s %>
<%= raw @map.to_html %>

[Map]

Thanks again

Validate the rendered HTML in the W3C validator, see if you have
duplicate HTML Element IDs somehow. That’s what this sounds like
precisely.

Walter

Great news, I figured it out. In the code below I had to add #{@count}
to the business name… I am assuming the marker location is set with
position and the marker itself just gets attached to the marker with
the same :name attribute, which is presumably the last marker created
by the loop.

Thanks!

    @numrecords.times do
      markername = "marker#{@count}"
      markername = Cartographer::Gmarker.new(:name=>

“Business#{@count}”, :marker_type => “Building”,
:position => [@lat[@count], @long[@count]],
:info_window_url => “/bio/#{@user_id[@count]}”,
:icon => @icon)

      @map.markers << markername
      @count += 1
      end

Walter. Thanks for your response. Unfortunately this doesn’t seem to
be the problem. W3C came up clean!

You might find https://github.com/apneadiving/Google-Maps-for-Rails worth a look.

On 03/12/2012 03:12 AM, Abram wrote:
Great news, I figured it out. In the code below I had 
to add #{@count}
to the business name... I am assuming the marker location is set with
position and the marker itself just gets attached to the marker with
the same :name attribute, which is presumably the last marker created
by the loop.

Thanks!

    @numrecords.times do
      markername = "marker#{@count}"
      markername = Cartographer::Gmarker.new(:name=&gt;

“Business#{@count}”, :marker_type => “Building”,
:position => [@lat[@count], @long[@count]],
:info_window_url => “/bio/#{@user_id[@count]}”,
:icon => @icon)

      @map.markers &lt;&lt; markername
      @count += 1
      end

On Mon, Mar 12, 2012 at 9:05 PM, Abram <[email protected]>
wrote:



Walter. Thanks for your response. Unfortunately
this doesn’t seem to
be the problem. W3C came up clean!

On Mon, Mar 12, 2012 at 8:06 AM, Walter Lee D. <[email protected]> wrote:




On Mar 11, 2012, at 2:56 PM, Abram wrote:
Thanks for that Colin.

I am trying to create a map with markers for Dispensers pulled from
the DB. I am able to successfully do this, however, whenever I click
on the markers the info box always appears over the same marker. The
CORRECT dispenser’s info box is popping up on the map, but over the
wrong marker! Has anyone run across this issue?

In my controller:

def find_map

   @location = Location.new
   @location.address = params[:location][:address]
   @latlon = @location.geocode
   @dispensers = Dispenser.near(@latlon)
   @numrecords = 0
   @lat = []
   @long = []
   @user_id = []
   @dispensers.each do |x|
     @lat[@numrecords] = x.latitude
     @long[@numrecords] = x.longitude
     @user_id[@numrecords] = x.user_id
     @numrecords += 1
   end

   @map = Cartographer::Gmap.new( ‘map’)
   @map.zoom = :bound
   @icon = Cartographer::Gicon.new()
   @map.icons <<  @icon

   @count = 0
   @numrecords.times do
     markername = “marker#{@count}”
     markername = Cartographer::Gmarker.new(:name=>
“Business”,
:marker_type => “Building”,
                   
        :position => [@lat[@count],
@long[@count]],
                   
        :info_window_url =>
“/bio/#{@user_id[@count]}”, :icon => @icon)

     @map.markers << markername
     @count += 1
   end
In my show.html.erb

 <%= raw Cartographer::Header.new.to_s %>
 <%= raw @map.to_html %>

 <div style=“width:350px;height:250px;” id=“map” >
[Map]</div>

Thanks again




Validate the rendered HTML in the W3C validator, see if you have
duplicate HTML Element IDs somehow. That’s what this sounds like
precisely.

Walter

On Mon, Mar 12, 2012 at 5:10 AM, Colin L. <[email protected]> 
wrote:
On 10 March 2012 21:12, Abram <[email protected]> 
wrote:
Hi guys (and gals),

The code formatting is so nice on SO.com, so I thought I’d just share
my post in hopes that someone from the group can help.

http://stackoverflow.com/questions/9643786/cartographer-shows-correct-info-box-but-over-wrong-marker




I may be wrong but I think that most here will not want to take the
time to go over there to look at your problem.  If you want to ask
a
question here it is best to ask it.

Colin


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