activerecord - How can i remove a column from table using rails console -


it possible remove column using rails migration.

class someclass < activerecord::migration   def self.up     remove_column :table_name, :column_name   end end

i want know if there way remove column table using console.

you can run codes in up method directly in rails console:

>> activerecord::migration.remove_column :table_name, :column_name

if have migration file such "db/migrate/20130418125100_remove_foo.rb", can this:

>> require "db/migrate/20130418125100_remove_foo.rb" >> removefoo.up

if want rake db:migrate, try this:

>> activerecord::migrator.migrate "db/migrate"

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