rails change column type string to integer
To change a column type from string to integer in Ruby on Rails, follow these steps:
Generate a migration file: Run the following command in the terminal to create a new migration file:
rails generate migration ChangeColumnType
Open the migration file: Navigate to the newly generated migration file located in the
db/migrate
directory. The file should be named something liketimestamp_change_column_type.rb
.Modify the migration file: Inside the migration file, add the following code within the
change
method:ruby def change change_column :table_name, :column_name, 'integer USING CAST(column_name AS integer)' end
Replacetable_name
with the name of the table containing the column you want to change, andcolumn_name
with the name of the actual column.Run the migration: Execute the following command in the terminal to apply the migration and update the column type:
rails db:migrate
After running the migration, the column type should be successfully changed from string to integer. Remember to adapt the code to your specific table and column names.