Renaming a model and table leads to SQL Exception

rubyonrails-talk
#1

I have a model called "Media", database table "Medias". I had to rename
that model to "Medium" and the database table to "Mediums".
and now when I run my application , I get the following error:

ActiveRecord::StatementInvalid in MediumsController#index
SQLite3::SQLException: no such table: media: SELECT * FROM "media"

Application Trace:
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract_adapter.rb:219:in
`log'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/sqlite_adapter.rb:172:in
`execute'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/sqlite_adapter.rb:417:in
`catch_schema_changes'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/sqlite_adapter.rb:172:in
`execute'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/sqlite_adapter.rb:320:in
`select'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/database_statements.rb:7:in
`select_all_without_query_cache'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/query_cache.rb:60:in
`select_all'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/query_cache.rb:81:in
`cache_sql'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/query_cache.rb:60:in
`select_all'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/base.rb:661:in
`find_by_sql'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/base.rb:1548:in
`find_every'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/base.rb:615:in
`find'
C:/IR/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/base.rb:635:in
`all'
C:/IR/rails_apps/work/ProjectBroadcast/app/controllers/mediums_controller.rb:6:in
`index'

Note: I am using sqlite3

I don't have any table called 'media' in my application, I wonder why
its doing a select from that table

I tried rake db:migrate:reset and it was successful.

Any help is hugely appreciated

Thanks!

#2

I think you missed to reset your database using rake db:reset after having changed the model name & the corresponding migrations.

Thanks & Regards,
Dhruva Sagar.

#3

I have a model called "Media", database table "Medias". I had to rename
that model to "Medium" and the database table to "Mediums".
and now when I run my application , I get the following error:

ActiveRecord::StatementInvalid in MediumsController#index
SQLite3::SQLException: no such table: media: SELECT * FROM "media"

Rails things that the plural of medium is media, so is looking for a
table called media for the model medium. Either tell the inflector
what you want the plural of medium to be or use set_table_name

Fred

#4

Hi
Have u changed the model name in ur controller query. which is in index method. Please check first.

#5

Because the error is in ur mediums controller “ActiveRecord::StatementInvalid in MediumsController#index”