How do I migrate from one ORM library to another?

How do I migrate from one ORM library to another?

Migrating from one ORM library to another involves several steps. First, you need to understand the differences in how each ORM handles data models.

What are the key differences I should be aware of?

Key differences include how relationships are defined, query syntax, and how migrations are handled. Each ORM has its own conventions.

Can you give me an example of how to define a relationship in both libraries?

Sure! In Library A, you might define a one-to-many relationship like this: class User { ... } and class Post { ... }. In Library B, it could look different, such as using decorators or annotations.

What about data migration? How do I transfer existing data?

For data migration, you can write scripts to extract data from the old ORM and insert it into the new one, ensuring to map fields correctly.