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Diffstat (limited to 'doc/development/foreign_keys.md')
| -rw-r--r-- | doc/development/foreign_keys.md | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/development/foreign_keys.md b/doc/development/foreign_keys.md index 0f100c6b66e..37764a12f97 100644 --- a/doc/development/foreign_keys.md +++ b/doc/development/foreign_keys.md @@ -105,6 +105,8 @@ create_table :user_configs, id: false do |t| end ``` +Setting `default: nil` will ensure a primary key sequence is not created, and since the primary key +will automatically get an index, we set `index: false` to avoid creating a duplicate. You will also need to add the new primary key to the model: ```ruby |