Build failure when executing "RAILS_ENV=production rake assets:precompile --trace"

[xeospeed]

When trying to deploy my application I ran into a failure whenever I tried to precompile my assets for production, receiving an error:

** Invoke assets:precompile (first_time)
** Invoke assets:environment (first_time)
** Execute assets:environment
** Invoke environment (first_time)
** Execute environment
rake aborted!
PG::UndefinedTable: ERROR: relation "part_models" does not exist
LINE 5: WHERE a.attrelid = '"part_models"'::regclass
^
: SELECT a.attname, format_type(a.atttypid, a.atttypmod),
pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod
FROM pg_attribute a LEFT JOIN pg_attrdef d
ON a.attrelid = d.adrelid AND a.attnum = d.adnum
WHERE a.attrelid = '"part_models"'::regclass
AND a.attnum > 0 AND NOT a.attisdropped
ORDER BY a.attnum

I was able to trace the offending code to my model which was calling:

"acts_as :part_model, :as => :partable"

After a bit of troubleshooting I discovered a workaround was to just check if the table exists:

if ActiveRecord::Base.connection.table_exists? 'part_models'
acts_as :part_model, :as => :partable
end

This works but feels a bit hacky.

[xeospeed]

It appears this may be related to eager_loading as mentioned in rails/rails#11389

Once Rails 4.0.1 is released, is setting eager loading to false the preferred solution to this problem?