Implement a `findFirst` API

Problem

findOne is strict in that it requires a unique constraint (@unique, @id) to find a unique entry. That, however, doesn’t allow for more flexible kinds of queries which should also usually return a single result.

Suggested solution

findFirst, doing essentially a findMany + take: 1 under the hood.

Additional context

• https://github.com/prisma/prisma-client-js/issues/232

[rootandleaves]

Currently i am running my head to create query to retrieve first entry of any given table x in db. It would be convenient to have something like FindOldest or FindLastest with FindWithLastUpdatedOn (Based on @createdAt and @updatedAt timestamp)

[nickreynke]

Another use case to clarify why this is important.

Assume you have Workspaces where each User is either a simple participant or an owner. Per user input the user now wants to fetch a specific workspace by its id.

The findFirst comes in pretty handy because I can now find the first workspace where the id matches the given one AND the user is either a participant or the owner. This makes fetching the workspaces more secure since, in this case, it will only return those that are also attached to the current user.

Thank you for the implementation ❤️