Forgive me if this is a naive question. I has noobie.
I'm developing a scalable distributed back end search system for a
client, and using eventmachine to great effect thus far. However, we
need database access, and that's where things start to get sticky.
I can use em-mysql and mysqlplus to make async db queries, but I'd
like to use an ORM to keep the code clean and simple. ActiveRecord is
a poor fit, from what I can tell so far. It has a blocking API, and
offers little hope of straightforward modification to fit the async io-
driven design of eventmachine.
I'm wondering if there's an entry point / layer in the Sequel stack
that would allow me to say (in effect): Here is a row from by
database, please create Model Foo from it for me. Even better would
be a portion of the Sequel API that was nonblocking / eventdriven.
Along the lines of:
DB = Sequel.my_evented_mysql_thing { |connection|
if connection.success?
# something
else
# something else
end
}
EM.start {
DB[:countries].filter(:region => 'Middle East') { |data_set|
if data_set.success?
# callback to do something with data_set, now that it has been
populated...
elsif data_set.timeout?
# etc
end
}
}
Any ideas? Anyone else out there need anything like this?
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