chronos Posts - Answer Overflow

chronos

•Created by chronos on 1/11/2024 in #help

Can't save json via prepared statements

I am getting a strange entry in my db while trying to save json through a prepared statement This is my simplified prepared statement

const saveData = db.
  insert(tableName)
  .values({
    jsonData: sql.placeholder("jsonData")
  })
  .prepare()

const saveData = db.
  insert(tableName)
  .values({
    jsonData: sql.placeholder("jsonData")
  })
  .prepare()

This is how I am calling it

// Neither of these work
await saveData.execute({ jsonData: jsonData })
await saveData.execute({ 
  jsonData: JSON.stringify(jsonData)
})

// Neither of these work
await saveData.execute({ jsonData: jsonData })
await saveData.execute({ 
  jsonData: JSON.stringify(jsonData)
})

Finally this is what shows up in the json column in the db

{"name": "jsonData"}

{"name": "jsonData"}

What am I missing?

2 replies

DTDrizzle Team

•Created by chronos on 1/11/2024 in #help

Correct way of handling upserts in MySql

Hey folks! I am using MySql and cannot use onConflictDoUpdate. In leu of that I am wondering if this is a correct way of doing upserts

const updated = await db
  .update(...)
  .set(...)
  .where(eq(..))

// If no rows updated, create new row
if (updated[0].affectedRows === 0) {
  await db.insert(...).values(...)
}

const updated = await db
  .update(...)
  .set(...)
  .where(eq(..))

// If no rows updated, create new row
if (updated[0].affectedRows === 0) {
  await db.insert(...).values(...)
}

In my use case this record is going to be created once and then updated several times.

5 replies

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