mazurr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
2007-Mar-22 17:41 UTC
Use Mysql.new() without DB data
How can I use MySQL.new() inside one of my models without specifying
the specifics of the database connection?
So in one of my models I have something like:
m =
Mysql.new("localhost","myuser","mypass","mydb")
r = m.query("SELECT <some complicated SQL joining......>")
How can I have that SQL statement line above use the global database
connection that I already have available to ActiveRecord?
I know another option is find_by_sql, like:
@somemodels = Somemodel.find_by_sql("SELECT <something
complicated......>")
But I am not fetching objects with my SQL. According to the API, the
left-hand side of that statement must be model objects.
Am I right on this? Is there a way to use the global db settings
while using m = Mysql.new() so I don''t have to write the user/pass/db
attributes inside the model?
Thanks,
Rob
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You can use ActiveRecord::Base.connection, e.g.
ActiveRecord::Base.connection.select_all("some nasty sql here"); and
it will return as an array of hashes.
-Shawn
On 3/22/07, mazurr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
<mazurr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
> How can I use MySQL.new() inside one of my models without specifying
> the specifics of the database connection?
>
> So in one of my models I have something like:
> m =
Mysql.new("localhost","myuser","mypass","mydb")
> r = m.query("SELECT <some complicated SQL joining......>")
>
> How can I have that SQL statement line above use the global database
> connection that I already have available to ActiveRecord?
>
> I know another option is find_by_sql, like:
> @somemodels = Somemodel.find_by_sql("SELECT <something
> complicated......>")
>
> But I am not fetching objects with my SQL. According to the API, the
> left-hand side of that statement must be model objects.
>
> Am I right on this? Is there a way to use the global db settings
> while using m = Mysql.new() so I don''t have to write the
user/pass/db
> attributes inside the model?
>
> Thanks,
> Rob
>
>
> >
>
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mazurr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
2007-Mar-22 21:48 UTC
Re: Use Mysql.new() without DB data
Bingo. Exactly what I was needing. Thanks Shawn, Rob --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---