From: Rohit Mehta <ro@...>
Date: 2006-06-24T07:15:46+09:00
Subject: mysql-ruby + ruby-mysql + activerecord == confusion


Hi guys, I am having some difficulties with mysql :)

I have rails working and activerecord works, and I can create
webapps that display and update databases just fine.

However, I am not using rails.  I just want to do some simple
inserts to a database.

So, I tried something like the following:

require 'rubygems'
require 'active_record/vendor/mysql'
@db = Mysql.new(hostname, username, password, databasename)
db.query("insert into sent mail (id, recip, subject,spam) 
values(12,'foo','foo','y')")
Mysql::Error: Lost connection to MySQL server during query
        from 
/usr/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/active_record/vendor/mysql.rb:1092:in 
`read'
        from 
/usr/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/active_record/vendor/mysql.rb:499:in 
`read'
        from 
/usr/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/active_record/vendor/mysql.rb:381:in 
`read_query_result'
        from 
/usr/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/active_record/vendor/mysql.rb:180:in 
`real_query'
        from 
/usr/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/active_record/vendor/mysql.rb:307:in 
`query'

I then tried downloading and installing mysql-ruby-2.7

I have mysql-client installed and I ran test.rb connecting to a mysql-4 
server and got the following
failures:

  1) Failure:
test_execute2(TC_MysqlStmt2) [test.rb:628]:
<[123]> expected but was
<[196864]>.

  2) Error:
test_execute3(TC_MysqlStmt2):
Mysql::Error: Out of memory (Needed 2063600648 bytes)
    test.rb:637:in `execute'
    test.rb:637:in `test_execute3'

  3) Failure:
test_execute4(TC_MysqlStmt2) [test.rb:653]:
<[nil, "hoge", #<Mysql::Time:2005-07-19 23:53:00>]> expected but was
<[nil, "\001", #<Mysql::Time:0000-00-00 00:00:00>]>.

  4) Failure:
test_sqlstate(TC_MysqlStmt2) [test.rb:1288]:
<""> expected but was
<"00000">.

So THEN, I tried ruby-mysql-0.2.6.  This actually works just fine 
against my mysql 4 server, but
when I run it against mysql 5, I get the following:
connect............../mysql.rb:453:in `read': Client does not support 
authentication protocol requested by server; consider upgrading MySQL 
client (Mysql::Error)

So I am out of luck if I want to use mysql 5.  However my rails apps 
work with a mysql5 server. 
Anyone have any idea what I should be doing?


I'd appreciate assistance as I am quite muddled after all of this... I 
haven't even looked at Ruby-DBI yet!

:)

Thanks,

Rohit