Newbie having serious problems

[Micah Wolfe]

Greetings all,

I've just started learning Ruby (and Geo Ruby), and am trying to create
overlays for Google Maps.

I found a [seemingly] great tutorial for doing this @
http://blog.newsplore.com/2009/02/2...es-overlay-in-google-maps-part-1#import-to-DB

...and it uses Ruby - cool, eh?

The problem is, when I get to the step of running the code, I get a slew
of errors that I can't seem to debug with my limited knowledge of Ruby.

ERRORS: (yeah, I know I should really add this location to my $PATH)
(Terminal_Saved_Output2.txt)

SCRIPT:
(gen_encpolygons.rb)

What, exactly, is wrong with his syntax and if there is how can I change
it so it will run?

Doesn't kEND refer to having an 'end' somewhere you shouldn't?

Any help is greatly appreciated.

Best,
Micah

Attachments:
http://www.ruby-forum.com/attachment/5899/Terminal_Saved_Output2.txt
http://www.ruby-forum.com/attachment/5900/gen_encpolygons.rb

 

[Martin DeMello]

SCRIPT:
(gen_encpolygons.rb)

What, exactly, is wrong with his syntax and if there is how can I change
it so it will run?

Doesn't kEND refer to having an 'end' somewhere you shouldn't?

The problem is with this line:

init_borders << "{color: "#0000ff",n
weight: 5,n
points: '"

Note the quotes around the "#0000ff" which clash with the quotes in
the larger string.

Go through and use %{string} for all multiline strings.

martin

 

[Yaser Sulaiman]

[Note: parts of this message were removed to make it a legal post.]

What, exactly, is wrong with his syntax and if there is how can I change
it so it will run?

Hi Micah,

I think that you got the code form part 2 of the tutorial [1] by clicking on
the "click to expand" link. For some reason, the code on that page is quite
messed up -- for example, notice the lack of backslashes: the `n`s at the
end of some of the strings should be `\n`, which is the escape sequence for
newline.

The downloadable script file [2] looks OK (based on a quick visual
inspection using Vim). Try downloading it and see if it actually works.

Regards,
Yaser Sulaiman

[1]:
http://blog.newsplore.com/2009/03/01/political-boundaries-overlay-google-maps-2
[2]: http://blog.newsplore.com/wp-content/uploads/2009/02/gen_encpolygons.rb

 

[Micah Wolfe]

Thanks guys!

Okay. At least now the script runs...unsuccessfully, but it runs.

I had to add require 'rubygems' at the top because it wasn't recognizing
'mysql'.

Now it's getting as far as line 11 (yea!!!)...
...where it craps out on this line.

borderDB = Mysql::new('localhost', 'root', 'proot', 'dbname')
(not my real proot, nor db name)

and it gives me:
../../Developer/usr/bin/gen_encpolygons.rb:11:in `new': Access denied
for user 'root'@'localhost' (using password: YES) (Mysql::Error)
from ../../Developer/usr/bin/gen_encpolygons.rb:11:in
`generate_js_border_overlay'
from ../../Developer/usr/bin/gen_encpolygons.rb:95

(Yeah, I really need to fix my $PATH)

I've checked Mysql, and I don't have any problem connecting. Could it be
a port issue? I'm running MAMP, and it uses a non-standard port (8889)
for Mysql, but I haven't had any other problems connecting to it via
Ruby on the command line.

Is this a Mysql issue, or a Ruby issue?

Thanks again for the help, and for putting up with a desperate noobie.

Best,
Micah

 

[Micah Wolfe]

I think this is a Mysql problem.

I'm checking my server configuration.
(and fixing my $PATH)

Thanks again guys.

Best,
Micah

 

[Micah Wolfe]

Greetings,

Thank you all for the help.

I fixed the connection. Have everything installed properly (as far as I
can tell - gem list gives me the whole bundle including: mysql (2.8.1)).
MySQL working fine.

So now I get this error when trying to run the script from a shell:

Command:
$ ruby ./Desktop/gen_encpolygons.rb

Returns:
/Desktop/gen_encpolygons.rb:11:in `initialize': wrong number of
arguments (4 for 0) (ArgumentError)
from ./Desktop/gen_encpolygons.rb:11:in `new'
from ./Desktop/gen_encpolygons.rb:11:in `generate_js_border_overlay'
from ./Desktop/gen_encpolygons.rb:95

I've googled extensively for similar argument errors, and I'm not
finding any good matches (or solutions).

...so I opened an irb session to try a little test:

Command:
Mysql::new('localhost', 'root', '', 'my_database')

Returns:
NameError: uninitialized constant Mysql
from (irb):1

Then I checked for the gem:=> true

I'm really lost here.

Best,
Micah

Attachments:
http://www.ruby-forum.com/attachment/6000/gen_encpolygons.rb