Comments on: New features in ActiveRecord Oracle enhanced adapter version 1.2.2 http://blog.rayapps.com/2009/09/28/new-features-in-activerecord-oracle-enhanced-adapter-version-1-2-2/ About Ruby, Oracle, Mac and others Wed, 28 Jul 2010 16:18:03 +0000 hourly 1 http://wordpress.com/ By: Kevin Neel http://blog.rayapps.com/2009/09/28/new-features-in-activerecord-oracle-enhanced-adapter-version-1-2-2/#comment-1219 Kevin Neel Wed, 14 Jul 2010 02:17:29 +0000 http://rayapps.wordpress.com/?p=116#comment-1219 Raimonds -- do you have or use any tools for generating ActiveRecord (or DataMapper) models from an existing database? Including foreign keys, constraints, ... I see the following out there: http://magicmodels.rubyforge.org/magic_model_generator/ Thanks! Kevin Raimonds — do you have or use any tools for generating ActiveRecord (or DataMapper) models from
an existing database? Including foreign keys, constraints, … I see the following out there:
http://magicmodels.rubyforge.org/magic_model_generator/

Thanks!
Kevin

]]> By: Raimonds Simanovskis http://blog.rayapps.com/2009/09/28/new-features-in-activerecord-oracle-enhanced-adapter-version-1-2-2/#comment-1187 Raimonds Simanovskis Mon, 03 May 2010 15:46:47 +0000 http://rayapps.wordpress.com/?p=116#comment-1187 You can use set_integer_columns method in class definition to specify which columns should be treated like integers (you can find examples in RDoc documentation of oracle_enhanced). And for such kind of questions it is better to use discussion group http://groups.google.com/group/oracle-enhanced You can use set_integer_columns method in class definition to specify which columns should be treated like integers (you can find examples in RDoc documentation of oracle_enhanced).

And for such kind of questions it is better to use discussion group http://groups.google.com/group/oracle-enhanced

]]> By: Tate http://blog.rayapps.com/2009/09/28/new-features-in-activerecord-oracle-enhanced-adapter-version-1-2-2/#comment-1184 Tate Fri, 30 Apr 2010 23:25:39 +0000 http://rayapps.wordpress.com/?p=116#comment-1184 Is there a way to force a column to a specific data type within the model? We are using a legacy Oracle DB which has columns like 'personuid' which is a number with no scale so it comes back as a float. We can't simply use the 'emulate_integers_by_column_name' because it assumes the column is called '_id'. I was hoping we could explicitly set the columns in the model somehow and the adapter would read that assignment. Any ideas? Is there a way to force a column to a specific data type within the model? We are using a legacy Oracle DB which has columns like ‘personuid’ which is a number with no scale so it comes back as a float. We can’t simply use the ‘emulate_integers_by_column_name’ because it assumes the column is called ‘_id’.

I was hoping we could explicitly set the columns in the model somehow and the adapter would read that assignment.

Any ideas?

]]> By: Raimonds Simanovskis http://blog.rayapps.com/2009/09/28/new-features-in-activerecord-oracle-enhanced-adapter-version-1-2-2/#comment-1043 Raimonds Simanovskis Thu, 10 Dec 2009 10:31:53 +0000 http://rayapps.wordpress.com/?p=116#comment-1043 This issue is fixed in new oracle_enhanced version 1.2.3 that I just released. This issue is fixed in new oracle_enhanced version 1.2.3 that I just released.

]]> By: ed lebert http://blog.rayapps.com/2009/09/28/new-features-in-activerecord-oracle-enhanced-adapter-version-1-2-2/#comment-1042 ed lebert Wed, 09 Dec 2009 15:15:19 +0000 http://rayapps.wordpress.com/?p=116#comment-1042 I love that you now have support for them in the generated schema.rb. However, Now I get Oracle errors whenever I run rake db:test:prepare because my schema is trying to add a FK constraint for a table that is created later in the schema. You should probably put the add_foreign_key calls to the end of the schema, to make sure that the referenced table has been created. I love that you now have support for them in the generated schema.rb. However, Now I get Oracle errors whenever I run rake db:test:prepare because my schema is trying to add a FK constraint for a table that is created later in the schema. You should probably put the add_foreign_key calls to the end of the schema, to make sure that the referenced table has been created.

]]> By: Eduardo http://blog.rayapps.com/2009/09/28/new-features-in-activerecord-oracle-enhanced-adapter-version-1-2-2/#comment-1041 Eduardo Tue, 08 Dec 2009 02:40:30 +0000 http://rayapps.wordpress.com/?p=116#comment-1041 I'm trying to deploy an prodution app in a new enviroment (jruby+glassfish now, I was using mongrel before). SEVERE: ERROR: ActiveRecord oracle_enhanced adapter could not load Oracle JDBC driver. Please install ojdbc14.jar library What am I doing wrong? (Yes, odbc14.jar is in the right place). Enhanced adapter is my last attempt to get my old application to run smoothly with jruby. Unfortunaly I'll have to abandon ruby if I don't get this working (glassfish and tomcat are the only appservers allowed in my company now). I've been trying to use activerecord-jdbc-adapter, but that is not even close to be ready for a production environment. I’m trying to deploy an prodution app in a new enviroment (jruby+glassfish now, I was using mongrel before).

SEVERE: ERROR: ActiveRecord oracle_enhanced adapter could not load Oracle JDBC driver. Please install ojdbc14.jar library

What am I doing wrong? (Yes, odbc14.jar is in the right place). Enhanced adapter is my last attempt to get my old application to run smoothly with jruby. Unfortunaly I’ll have to abandon ruby if I don’t get this working (glassfish and tomcat are the only appservers allowed in my company now). I’ve been trying to use activerecord-jdbc-adapter, but that is not even close to be ready for a production environment.

]]> By: Martijn van Rheenen http://blog.rayapps.com/2009/09/28/new-features-in-activerecord-oracle-enhanced-adapter-version-1-2-2/#comment-896 Martijn van Rheenen Wed, 30 Sep 2009 07:54:11 +0000 http://rayapps.wordpress.com/?p=116#comment-896 Thanks for the support, relying on this adapter for my prototyping... Though your DataMapper's alternative, and DataMapper with it, is looking more and more interesting, actually... Thanks for the support, relying on this adapter for my prototyping… Though your DataMapper’s alternative, and DataMapper with it, is looking more and more interesting, actually…

]]> By: Raimonds Simanovskis http://blog.rayapps.com/2009/09/28/new-features-in-activerecord-oracle-enhanced-adapter-version-1-2-2/#comment-895 Raimonds Simanovskis Wed, 30 Sep 2009 06:11:43 +0000 http://rayapps.wordpress.com/?p=116#comment-895 Yes, this setting will apply just for sessions created by ActiveRecord. I think that cursor_sharing = force is safer to use for simple ActiveRecord generated statements to ensure that always all parameters will be extracted as bind variables. If you have complex SQL statements then anyway you probably need to use find_by_sql method and then you can put there Oracle optimizer hints as well :) Yes, this setting will apply just for sessions created by ActiveRecord.
I think that cursor_sharing = force is safer to use for simple ActiveRecord generated statements to ensure that always all parameters will be extracted as bind variables.
If you have complex SQL statements then anyway you probably need to use find_by_sql method and then you can put there Oracle optimizer hints as well :)

]]> By: Kevin Neel http://blog.rayapps.com/2009/09/28/new-features-in-activerecord-oracle-enhanced-adapter-version-1-2-2/#comment-893 Kevin Neel Tue, 29 Sep 2009 22:33:55 +0000 http://rayapps.wordpress.com/?p=116#comment-893 Nice work Raimonds and co! I recommend that people do read about the cursor_sharing option; some may want to change it to similar for their applications. Unfortunately, it is a bit of a blunt hammer, since it is either system-wide or session-wide, rather than per-statement. I assume here you are setting the session value? Nice work Raimonds and co!

I recommend that people do read about the cursor_sharing option; some may want to change it to similar for their applications. Unfortunately, it is a bit of a blunt hammer, since it is either system-wide or session-wide, rather than per-statement.

I assume here you are setting the session value?

]]> By: Roy van der Meij http://blog.rayapps.com/2009/09/28/new-features-in-activerecord-oracle-enhanced-adapter-version-1-2-2/#comment-888 Roy van der Meij Tue, 29 Sep 2009 11:40:42 +0000 http://rayapps.wordpress.com/?p=116#comment-888 Nicely done! Nicely done!

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