Merge pull request #38851 from tiramizoo/change-example-in-change-table

Add an example how to change column in "change_table" block [ci skip]
rails · Mar 31, 2020 · c805c5a · c805c5a
2 parents 1239b22 + 46b8934
commit c805c5a
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -421,6 +421,12 @@ def drop_join_table(table_1, table_2, **options)
       #     t.column :name, :string, limit: 60
       #   end
       #
+      # ====== Change type of a column
+      #
+      #   change_table(:suppliers) do |t|
+      #     t.change :metadata, :json
+      #   end
+      #
       # ====== Add 2 integer columns
       #
       #   change_table(:suppliers) do |t|