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POException generated during rename_column migration
 

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  1. POException generated during rename_column migration
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    <p>I'm trying to change a column in my sqlite DB via a migration...and I have no idea what I'm doing with RoR so please be gentle!</p> <p>Here's the migration I'm trying to run.</p> <pre><code>class FixContactIdColumn &lt; ActiveRecord::Migration def self.up rename_column :calls, :contact, :contact_id end def self.down end end </code></pre> <p>And here's the exception it's generating.</p> <pre><code>brad@brad-vm:~/www/contactly$ vim db/migrate/20101013020151_fix_contact_id_column.rb brad@brad-vm:~/www/contactly$ rake db:migrate --trace (in /home/brad/www/contactly) ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate == FixContactIdColumn: migrating ============================================= -- rename_column(:calls, :contact, :contact_id) rake aborted! An error has occurred, this and all later migrations canceled: undefined method `to_sym' for nil:NilClass /usr/lib/ruby/1.8/active_support/whiny_nil.rb:52:in `method_missing' /usr/lib/ruby/1.8/active_record/connection_adapters/abstract/schema_definitions.rb:480:in `column' /usr/lib/ruby/1.8/active_record/connection_adapters/sqlite_adapter.rb:363:in `copy_table' /usr/lib/ruby/1.8/active_record/connection_adapters/sqlite_adapter.rb:357:in `each' /usr/lib/ruby/1.8/active_record/connection_adapters/sqlite_adapter.rb:357:in `copy_table' /usr/lib/ruby/1.8/active_record/connection_adapters/abstract/schema_statements.rb:104:in `create_table' /usr/lib/ruby/1.8/active_record/connection_adapters/sqlite_adapter.rb:355:in `copy_table' /usr/lib/ruby/1.8/active_record/connection_adapters/sqlite_adapter.rb:349:in `move_table' /usr/lib/ruby/1.8/active_record/connection_adapters/sqlite_adapter.rb:342:in `alter_table' /usr/lib/ruby/1.8/active_record/connection_adapters/abstract/database_statements.rb:136:in `transaction' /usr/lib/ruby/1.8/active_record/connection_adapters/sqlite_adapter.rb:341:in `alter_table' /usr/lib/ruby/1.8/active_record/connection_adapters/sqlite_adapter.rb:311:in `rename_column' /usr/lib/ruby/1.8/active_record/migration.rb:352:in `send' /usr/lib/ruby/1.8/active_record/migration.rb:352:in `method_missing' /usr/lib/ruby/1.8/active_record/migration.rb:328:in `say_with_time' /usr/lib/ruby/1.8/benchmark.rb:293:in `measure' /usr/lib/ruby/1.8/active_record/migration.rb:328:in `say_with_time' /usr/lib/ruby/1.8/active_record/migration.rb:348:in `method_missing' ./db/migrate//20101013020151_fix_contact_id_column.rb:3:in `up_without_benchmarks' /usr/lib/ruby/1.8/active_record/migration.rb:282:in `send' /usr/lib/ruby/1.8/active_record/migration.rb:282:in `migrate' /usr/lib/ruby/1.8/benchmark.rb:293:in `measure' /usr/lib/ruby/1.8/active_record/migration.rb:282:in `migrate' /usr/lib/ruby/1.8/active_record/migration.rb:365:in `__send__' /usr/lib/ruby/1.8/active_record/migration.rb:365:in `migrate' /usr/lib/ruby/1.8/active_record/migration.rb:486:in `migrate' /usr/lib/ruby/1.8/active_record/migration.rb:560:in `call' /usr/lib/ruby/1.8/active_record/migration.rb:560:in `ddl_transaction' /usr/lib/ruby/1.8/active_record/connection_adapters/abstract/database_statements.rb:136:in `transaction' /usr/lib/ruby/1.8/active_record/transactions.rb:182:in `transaction' /usr/lib/ruby/1.8/active_record/migration.rb:560:in `ddl_transaction' /usr/lib/ruby/1.8/active_record/migration.rb:485:in `migrate' /usr/lib/ruby/1.8/active_record/migration.rb:472:in `each' /usr/lib/ruby/1.8/active_record/migration.rb:472:in `migrate' /usr/lib/ruby/1.8/active_record/migration.rb:400:in `up' /usr/lib/ruby/1.8/active_record/migration.rb:383:in `migrate' /home/brad/www/contactly/vendor/rails/railties/lib/tasks/databases.rake:116 /usr/lib/ruby/1.8/rake.rb:636:in `call' /usr/lib/ruby/1.8/rake.rb:636:in `execute /usr/lib/ruby/1.8/rake.rb:631:in `each' /usr/lib/ruby/1.8/rake.rb:631:in `execute' /usr/lib/ruby/1.8/rake.rb:597:in `invoke_with_call_chain' /usr/lib/ruby/1.8/monitor.rb:242:in `synchronize' /usr/lib/ruby/1.8/rake.rb:590:in `invoke_with_call_chain' /usr/lib/ruby/1.8/rake.rb:583:in `invoke' /usr/lib/ruby/1.8/rake.rb:2051:in `invoke_task' /usr/lib/ruby/1.8/rake.rb:2029:in `top_level' /usr/lib/ruby/1.8/rake.rb:2029:in `each' /usr/lib/ruby/1.8/rake.rb:2029:in `top_level' /usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling' /usr/lib/ruby/1.8/rake.rb:2023:in `top_level' /usr/lib/ruby/1.8/rake.rb:2001:in `run' /usr/lib/ruby/1.8/rake.rb:2068:in `standard_exception_handling' /usr/lib/ruby/1.8/rake.rb:1998:in `run' /usr/bin/rake:28 </code></pre> <p>Any ideas? I would be happy to provide additional details...</p> <p><strong>Update:</strong> It was suggested that I try to rollback my previous migration...but I get similar results.</p> <pre><code>-rw-r--r-- 1 brad brad 166 2010-10-12 17:21 20101013002111_add_notes_to_call.rb -rw-r--r-- 1 brad brad 175 2010-10-12 17:22 20101013002240_add_contact_to_call.rb -rw-r--r-- 1 brad brad 146 2010-10-12 19:25 20101013020151_fix_contact_id_column.rb brad@brad-vm:~/www/contactly/db/migrate$ rake db:migrate VERSION=20101013002111 (in /home/brad/www/contactly) == AddContactToCall: reverting =============================================== -- remove_column(:calls, :contact) rake aborted! An error has occurred, this and all later migrations canceled: undefined method `to_sym' for nil:NilClass (See full trace by running task with --trace) </code></pre>
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    1. USBrad Heller
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    1. COis it possible that the table `calls` does not have a column `contact` ? Because that is how it seems to me.
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      1. POException generated during rename_column migration
      1. USnathanvda
 

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