During the development process, I had to change the column name. I will write down the coping method as a memorandum.
Thing you want to do
Change the column name of model user as follows
zipCode → zip_code
1. Create migration file
Run the following command db/migrate/20200825114039_rename_zip_code_column_to_users.rb Create a.
rails generate migration rename_zipCode_to_users
2. Edit the migration file
class RenameZipCodeColumnToUsers <ActiveRecord::Migration[6.0] def change rename_column :users, :zipCode, :zip_code end end
3. Reflect to database
Do the following
$ rake db:migrate
The column name of the users model has been changed from zipCode to zip_code.
At the end
Initially after rewriting the column name with code I thought I should do “rake db:migrate”, but it wasn’t.
It’s a bit tedious to get used to, but even if you make similar mistakes in the future It seems that you can calmly deal with it.