Persistence Coming soon

Preá is getting a persistence layer of its own. It will be the next way to work with data in a Preá app, built on everything the current database layer already does.

What's coming

• More databases than PostgreSQL, behind the same models and repositories.
• Relationships as structs. A player has a Team *Team, not a TeamID. Saving a player with Team{ID: 7} links it to that team, and reading it brings the team back, without one query per row.
• Many-to-many, cascades and lazy loading. Tasks with Tags []Tag, saving a team together with its players, and relationships that load only when you use them.
• PPRQL, a query language for your models, so most queries need no hand-written SQL.
• Specifications and pagination, to build filters from small reusable pieces and page through results.

What carries over

The ideas of the current database layer are the starting point of the new one: a struct describes a table, a repository reads and writes it, and transactions travel in the context. What you learn today still applies.

Until then

Everything you need to build an app with a database is already here:

• Models & schema
• Migrations
• Repositories
• Transactions

Follow the What's next page, or watch the repository, to know when it lands.