How to create a unique composite index on >2 fields in 1 table?

[nguyennhukhanh]

You should create a separate method to improve reusability and efficiency. The current approach took me a long time to implement.

Here's the existing code:

extendPrismaSchema: (schema) => {
  // Use a regex or string manipulation to add the @@unique directive to the generated model.
  return schema.replace(
    /model User \{/,
    `model User {
  @@unique([walletAddress, email])
`
  );
},

By extracting the logic into a dedicated function, we can make it cleaner and easier to maintain.