How can I migrate data using Dexie in Vue 3?

How can I migrate data using Dexie in Vue 3?

To migrate data using Dexie in Vue 3, you can follow these steps: 1. Define your new database schema. 2. Use Dexie's db.transaction method to read data from the old schema. 3. Write the data to the new schema using db.table('newTable').bulkPut(data). Would you like a code example?

Yes, please provide a code example.

Sure! Here's a simple example:

const oldData = await db.oldTable.toArray();
const newData = oldData.map(item => ({
  id: item.id,
  name: item.name,
  // map other fields as necessary
}));

await db.newTable.bulkPut(newData);

This code reads all data from oldTable, transforms it, and writes it to newTable. Do you need help with anything else?

What if I have complex data relationships?

For complex data relationships, you'll need to ensure that you maintain those relationships during the migration. You can do this by carefully mapping related data and possibly using foreign keys. Would you like to discuss a specific scenario?

Yes, I have a one-to-many relationship to migrate.

In that case, you can first migrate the 'one' side of the relationship, then for each related 'many' item, ensure you reference the correct foreign key. Would you like a detailed example for that?