fix: Support overwrite of @map and @@map ERD prisma schema usage

[keonik]

I haven't used parcel before so I wasn't spending much time running this. I just copied over the function to search the data model string for @map and @@map to replace in your render SVG from DML functions.

[vercel]

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🔍 Inspect: https://vercel.com/skn0tt/prisma-erd/32U6oBsstj83Jkf1tDxwbyEzEJSq
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[Skn0tt]

Hi @keonik, thanks a ton for this PR! I checked the deploy preview, but there seems to be some error. You can run it locally by running vercel dev, I think

[keonik]

@Skn0tt I think the 500 error is unrelated to the commit. The latest deployment has it commented out to see if it was the culprit. It still is getting that error. I'm playing around with updating some dependencies. Maybe something changed in the dependencies

[Skn0tt]

Alright, the deployment works again. @keonik I'm trying to verify this actually does what it's supposed to do, and added some @map directives to my schema. I have trouble finding a combination where this branch outputs something different than master - could you maybe share a Prisma schema file?

[keonik]

I commented it out while I was troubleshooting the 500 error. It's turned back on now. Here are separate examples. You should be able to just add @map("db_name") to any of the rows and @@map("table_name") to any of the models at the bottom of the rows.

test @map

model User {
      id              Int                 @id @default(autoincrement())
      hashedPassword  String?             @map("hashed_password")
}

test @@map

model User {
      id              Int                 @id @default(autoincrement())
      hashedPassword  String?             
      @@map("users")
}

[keonik]

Still doesn't appear to be working. hmm.

[keonik]

Is this datamodelString the string from the request? I wasn't able to get it running locally using vercel for some reason.

[Skn0tt]

No, datamodelString is the already-parsed string. req.body is what you're looking for, I think.

[keonik]

Looks like usage of the single @map is working. Renaming the model isn't for some reason