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comp.lang.ruby

Ruby error - cannot find ruby gem active record

jmilunsky

7/25/2007 5:15:00 PM

I get the following error message

C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:251:in
`report_activate_error': Could not find RubyGem activerecord (>=
0.0.0) (Gem::LoadError)
from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:188:in
`activate'
from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:66:in
`active_gem_with_options'
from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:59:in
`require_gem'
from C:/RadRails/workspace/album/my_ruby_code.rb:1

When I try execute the following piece of code

require_gem "activerecord"

class Photo < ActiveRecord::Base
end

Photo.establish_connection(
:adapter => "mysql", :database => "album_development")

for column in Photo.columns
print column.name, "\t"
end

puts
puts

for photo in Photo.find(:all)
for column in Photo.columns
print photo.send(column.name), "\t"
end
puts
end

I suspect it's a class path problem or a bug in the version I am using
which is the 1.8.4 stable version

If anyone can help, i'd really appreciate it.

Thanks
7 Answers

Todd Benson

7/25/2007 5:27:00 PM

0

On 7/25/07, jmilunsky@hotmail.com <jmilunsky@hotmail.com> wrote:
> I get the following error message
>
> C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:251:in
> `report_activate_error': Could not find RubyGem activerecord (>=
> 0.0.0) (Gem::LoadError)
> from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:188:in
> `activate'
> from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:66:in
> `active_gem_with_options'
> from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:59:in
> `require_gem'
> from C:/RadRails/workspace/album/my_ruby_code.rb:1
>
> When I try execute the following piece of code
>
> require_gem "activerecord"

Use: requre "active_record"

Todd

jmilunsky

7/25/2007 5:44:00 PM

0

On Jul 25, 1:26 pm, "Todd Benson" <caduce...@gmail.com> wrote:
> On 7/25/07, jmilun...@hotmail.com <jmilun...@hotmail.com> wrote:
>
>
>
> > I get the following error message
>
> > C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:251:in
> > `report_activate_error': Could not find RubyGem activerecord (>=
> > 0.0.0) (Gem::LoadError)
> > from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:188:in
> > `activate'
> > from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:66:in
> > `active_gem_with_options'
> > from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:59:in
> > `require_gem'
> > from C:/RadRails/workspace/album/my_ruby_code.rb:1
>
> > When I try execute the following piece of code
>
> > require_gem "activerecord"
>
> Use: requre "active_record"
>
> Todd

Thanks for the quick response

I landed up running gem install activerecord --include dependencies
and I got it to work but there was an error at the end

Gem not found exception could not find dependencies. Do you know what
this would mean?

Also When i installed the Gem package - shouldn't it automatically
install active record?

Todd Benson

7/25/2007 8:15:00 PM

0

On 7/25/07, jmilunsky@hotmail.com <jmilunsky@hotmail.com> wrote:
> On Jul 25, 1:26 pm, "Todd Benson" <caduce...@gmail.com> wrote:
> > On 7/25/07, jmilun...@hotmail.com <jmilun...@hotmail.com> wrote:
> Thanks for the quick response
>
> I landed up running gem install activerecord --include dependencies
> and I got it to work but there was an error at the end
>
> Gem not found exception could not find dependencies. Do you know what
> this would mean?
>
> Also When i installed the Gem package - shouldn't it automatically
> install active record?

I am not sure about your set up. Are you saying the command "gem
install activerecord" worked fine, but you are having trouble
requiring the gem in your code? Or are you saying that you can load
the gem, but get an error when you try to use it. What is your OS?
Are you requiring 'rubygems' first?

Here's what I did...

gem install activerecord

Then, in irb...
irb(main):001:0> require 'rubygems'
=> true
irb(main):002:0> require 'postgres' #I require this because I'm using
postgresql
=> true
irb(main):003:0> require 'active_record'
=> true

And then, smooth sailing from there on. Where in this process are you
getting an error?

jmilunsky

7/26/2007 3:54:00 AM

0

On Jul 25, 4:15 pm, "Todd Benson" <caduce...@gmail.com> wrote:
> On 7/25/07, jmilun...@hotmail.com <jmilun...@hotmail.com> wrote:
>
> > On Jul 25, 1:26 pm, "Todd Benson" <caduce...@gmail.com> wrote:
> > > On 7/25/07, jmilun...@hotmail.com <jmilun...@hotmail.com> wrote:
> > Thanks for the quick response
>
> > I landed up running gem install activerecord --include dependencies
> > and I got it to work but there was an error at the end
>
> > Gem not found exception could not find dependencies. Do you know what
> > this would mean?
>
> > Also When i installed the Gem package - shouldn't it automatically
> > install active record?
>
> I am not sure about your set up. Are you saying the command "gem
> install activerecord" worked fine, but you are having trouble
> requiring the gem in your code? Or are you saying that you can load
> the gem, but get an error when you try to use it. What is your OS?
> Are you requiring 'rubygems' first?
>
> Here's what I did...
>
> gem install activerecord
>
> Then, in irb...
> irb(main):001:0> require 'rubygems'
> => true
> irb(main):002:0> require 'postgres' #I require this because I'm using
> postgresql
> => true
> irb(main):003:0> require 'active_record'
> => true
>
> And then, smooth sailing from there on. Where in this process are you
> getting an error?

Things seem to have gotten worse for me. I had it working at one point
now i have installed everything from scratch again nad I get the
following error - i am running windows

C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/
vendor/mysql.rb:111:in `initialize': Bad file descriptor - connect(2)
(Errno::EBADF)
from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/vendor/mysql.rb:111:in `real_connect'
from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/connection_adapters/mysql_adapter.rb:389:in `connect'
from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/connection_adapters/mysql_adapter.rb:152:in `initialize'
from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/connection_adapters/mysql_adapter.rb:82:in
`mysql_connection'
from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/connection_adapters/abstract/connection_specification.rb:
262:in `connection_without_query_cache='
from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/query_cache.rb:54:in `connection='
from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/connection_adapters/abstract/connection_specification.rb:
230:in `retrieve_connection'
from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/connection_adapters/abstract/connection_specification.rb:
78:in `connection'
from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
active_record/base.rb:763:in `columns'
from C:/RadRails/workspace/album/my_ruby_code.rb:9


I installed ruby 1.8.4-20 into c:\ruby
I then installed rails using gem insall rails -r -y
I have the preference in RadRails set correctly to point to these
directories but it seems as though it's looking for active record in a
different directory or something

Boy this sure is frustrating

thanks
jack

Todd Benson

7/26/2007 4:23:00 AM

0

On 7/25/07, jmilunsky@hotmail.com <jmilunsky@hotmail.com> wrote:
> Things seem to have gotten worse for me. I had it working at one point
> now i have installed everything from scratch again nad I get the
> following error - i am running windows
>
> C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/
> vendor/mysql.rb:111:in `initialize': Bad file descriptor - connect(2)
> (Errno::EBADF)
> from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> active_record/vendor/mysql.rb:111:in `real_connect'
> from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> active_record/connection_adapters/mysql_adapter.rb:389:in `connect'
> from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> active_record/connection_adapters/mysql_adapter.rb:152:in `initialize'
> from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> active_record/connection_adapters/mysql_adapter.rb:82:in
> `mysql_connection'
> from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> active_record/connection_adapters/abstract/connection_specification.rb:
> 262:in `connection_without_query_cache='
> from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> active_record/query_cache.rb:54:in `connection='
> from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> active_record/connection_adapters/abstract/connection_specification.rb:
> 230:in `retrieve_connection'
> from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> active_record/connection_adapters/abstract/connection_specification.rb:
> 78:in `connection'
> from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> active_record/base.rb:763:in `columns'
> from C:/RadRails/workspace/album/my_ruby_code.rb:9
>
>
> I installed ruby 1.8.4-20 into c:\ruby
> I then installed rails using gem insall rails -r -y
> I have the preference in RadRails set correctly to point to these
> directories but it seems as though it's looking for active record in a
> different directory or something

No, this is a connection error. I can reproduce this by establishing
a connection with 'mysql' (even though I don't have MySQL installed).
Then, when I try to query through ActiveRecord, it gives me that
error.

Check
- your database.yml file
- that your mysql server is running

jmilunsky

7/26/2007 4:42:00 AM

0

On Jul 26, 12:22 am, "Todd Benson" <caduce...@gmail.com> wrote:
> On 7/25/07, jmilun...@hotmail.com <jmilun...@hotmail.com> wrote:
>
>
>
> > Things seem to have gotten worse for me. I had it working at one point
> > now i have installed everything from scratch again nad I get the
> > following error - i am running windows
>
> > C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/
> > vendor/mysql.rb:111:in `initialize': Bad file descriptor - connect(2)
> > (Errno::EBADF)
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/vendor/mysql.rb:111:in `real_connect'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/mysql_adapter.rb:389:in `connect'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/mysql_adapter.rb:152:in `initialize'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/mysql_adapter.rb:82:in
> > `mysql_connection'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/abstract/connection_specification.rb:
> > 262:in `connection_without_query_cache='
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/query_cache.rb:54:in `connection='
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/abstract/connection_specification.rb:
> > 230:in `retrieve_connection'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/abstract/connection_specification.rb:
> > 78:in `connection'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/base.rb:763:in `columns'
> > from C:/RadRails/workspace/album/my_ruby_code.rb:9
>
> > I installed ruby 1.8.4-20 into c:\ruby
> > I then installed rails using gem insall rails -r -y
> > I have the preference in RadRails set correctly to point to these
> > directories but it seems as though it's looking for active record in a
> > different directory or something
>
> No, this is a connection error. I can reproduce this by establishing
> a connection with 'mysql' (even though I don't have MySQL installed).
> Then, when I try to query through ActiveRecord, it gives me that
> error.
>
> Check
> - your database.yml file
> - that your mysql server is running

that could be it, i will check that right away, thanks

jmilunsky

7/26/2007 6:51:00 AM

0

On Jul 26, 12:22 am, "Todd Benson" <caduce...@gmail.com> wrote:
> On 7/25/07, jmilun...@hotmail.com <jmilun...@hotmail.com> wrote:
>
>
>
> > Things seem to have gotten worse for me. I had it working at one point
> > now i have installed everything from scratch again nad I get the
> > following error - i am running windows
>
> > C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/active_record/
> > vendor/mysql.rb:111:in `initialize': Bad file descriptor - connect(2)
> > (Errno::EBADF)
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/vendor/mysql.rb:111:in `real_connect'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/mysql_adapter.rb:389:in `connect'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/mysql_adapter.rb:152:in `initialize'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/mysql_adapter.rb:82:in
> > `mysql_connection'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/abstract/connection_specification.rb:
> > 262:in `connection_without_query_cache='
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/query_cache.rb:54:in `connection='
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/abstract/connection_specification.rb:
> > 230:in `retrieve_connection'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/connection_adapters/abstract/connection_specification.rb:
> > 78:in `connection'
> > from C:/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/
> > active_record/base.rb:763:in `columns'
> > from C:/RadRails/workspace/album/my_ruby_code.rb:9
>
> > I installed ruby 1.8.4-20 into c:\ruby
> > I then installed rails using gem insall rails -r -y
> > I have the preference in RadRails set correctly to point to these
> > directories but it seems as though it's looking for active record in a
> > different directory or something
>
> No, this is a connection error. I can reproduce this by establishing
> a connection with 'mysql' (even though I don't have MySQL installed).
> Then, when I try to query through ActiveRecord, it gives me that
> error.
>
> Check
> - your database.yml file
> - that your mysql server is running

I got it to work eventually, couple problems but the main thing is
that i had to change the way you include the active record gem to as
follows

gem "activerecord"
require "active_record"

An earlier version of ruby may have worked with the require_gem
"activerecord"

thanks so much for your help, one of the problems i had was that I had
not started the database so you were right.

cheers
jack (long night)