multiple update using prisma client (feat. mongodb)

When updating multiple entities in a row using Prisma ORM with a MongoDB connection, you have a few options depending on your requirements:

1. Using updateMany for Bulk Updates
   If you want to update multiple documents that match a specific condition, you can use updateMany.

   const updatedUsers = await prisma.user.updateMany({
     where: { isActive: false },
     data: { isActive: true }
   });
   
   console.log(updatedUsers);
   

   This updates all users who have isActive: false and sets them to true.

2. Using update in a Loop for Different Data
   If you need to update multiple entities with different data values, you can use a loop:

   const usersToUpdate = [
     { id: "user1", name: "Alice Updated" },
     { id: "user2", name: "Bob Updated" }
   ];
   
   for (const user of usersToUpdate) {
     await prisma.user.update({
       where: { id: user.id },
       data: { name: user.name }
     });
   }
   

   This performs multiple individual updates, but they are not batched.

3. Using prisma.$transaction for Bulk Updates
   If you need to update multiple records in a single transaction (to ensure consistency), you can use prisma.$transaction:

   const updates = usersToUpdate.map(user =>
     prisma.user.update({
       where: { id: user.id },
       data: { name: user.name }
     })
   );
   
   await prisma.$transaction(updates);
   

   This ensures that all updates succeed together or fail together.

4. Using prisma.$runCommandRaw for MongoDB-Specific Bulk Updates
   Since Prisma supports MongoDB natively but doesn’t have full batch update capabilities like SQL-based databases, you can use prisma.$runCommandRaw for MongoDB's native bulk update operations:

   await prisma.$runCommandRaw({
     update: "User",
     updates: [
       { q: { _id: "user1" }, u: { $set: { name: "Alice Updated" } } },
       { q: { _id: "user2" }, u: { $set: { name: "Bob Updated" } } }
     ]
   });
   

   This is a lower-level approach but more efficient for batch updates in MongoDB.

Choosing the Right Method

• Use updateMany if all entities share the same update data.
• Use prisma.$transaction if you need multiple updates to succeed together.
• Use prisma.$runCommandRaw for high-performance bulk updates in MongoDB.

Let me know if you need a more specific solution!