Added Column Not accessible in next migration file

Question

I have added a column to my table via a migration, but I am not able to access the added column in the subsequent migration file.

When I execute rake db:migrate the migration aborts, but when I execute it again the migration succeeds, not sure what I am doing wrong. Any help would be appreciated. Thanks.

below is the code where i am adding column

**

class AddIsDispatchToUsers < ActiveRecord::Migration
  def change
    add_column :users, :is_dispatch, :boolean, :default=>false
  end
end

**

Now, when i try to access the column in next migration file it fails.

The subsequent migration file has the code below

service_member = Member.create(:is_dispatch=>true)

And Here is the error that it produces

unknown attribute: is_dispatch/Users//.rvm/gems/ruby-1.9.3-p484/gems/activerecord-3.1.12/lib/active_record/base.rb:1764:in `block in assign_attributes'
/Users//.rvm/gems/ruby-1.9.3-p484/gems/activerecord-3.1.12/lib/active_record/base.rb:1758:in `each'
/Users//.rvm/gems/ruby-1.9.3-p484/gems/activerecord-3.1.12/lib/active_record/base.rb:1758:in `assign_attributes'
/Users//.rvm/gems/ruby-1.9.3-p484/gems/activerecord-3.1.12/lib/active_record/base.rb:1578:in `initialize'
/Users//.rvm/gems/ruby-1.9.3-p484/gems/activerecord-3.1.12/lib/active_record/base.rb:508:in `new'
/Users//.rvm/gems/ruby-1.9.3-p484/gems/activerecord-3.1.12/lib/active_record/base.rb:508:in `create'
/Users//Desktop/RailsDevelopement//db/migrate/20161003121452_add_dispatch_services.rb:11:in `up'

Answer 1

Have you tried User.reset_column_information after add_column in same migration.