you're missing the table property.
add_column :table_name, :column_name, :type remove_column :table_name, :column_name
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you're missing the table property.
add_column :table_name, :column_name, :type remove_column :table_name, :column_name
Keep up to date with Rails on Twitter and This Week in Rails
Policies: Conduct, License, Maintenance, Security, Trademarks