Rails compatibility issue (regression error)
Reported by Gaël SECHAUD | May 27th, 2009 @ 09:28 AM
When using a string instead of its symbol for comparison, the comportement of ar-extensions is different : it raises an error (as "nil" value isn't pushed) if a string is used.
Example
Testing
=>Testing(id: integer, name: string, parent_id: integer, lft:
integer, rgt: integer) Testing.find(:all, :conditions =>
{:name=>nil})
=> [] Testing.find(:all, :conditions => {"name"=>nil})
ActiveRecord::PreparedStatementInvalid: wrong number of bind
variables (0 for 1) in: testings
.name
is
?
from
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:2399:in
raise_if_bind_arity_mismatch' from
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:2351:in
replace_bind_variables'
from
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:2342:in
sanitize_sql_array' from
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:2235:in
sanitize_sql_orig'
from
/home/my_application/vendor/plugins/ar-extensions/ar-extensions/lib/ar-extensions/finders.rb:37:in
sanitize_sql' from
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1499:in
merge_conditions'
from
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1497:in
each' from
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1497:in
merge_conditions'
from
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1809:in
add_conditions!' from
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1692:in
construct_finder_sql'
from
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1553:in
find_every' from
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:615:in
find_without_default_options'
from
/home/my_application/vendor/plugins/my_extensions/lib/default_finder.rb:22:in
find' from (irb):15 from :0
Comments and changes to this ticket
-
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ActiveRecord::Extension (aka ar-extensions) is a plugin to extend and
enhance the functionality of ActiveRecord. It starts by adding better
find support for ActiveRecord. It then adds mass data import
capabilities which are highly efficient and lastly it supports to_csv
functionality.
It also introduces a cool concept of creating easily extendable pieces
of ActiveRecord functionality, so developers don't have to understand
ActiveRecord internals or have the fear of breaking ActiveRecord
itself.