ent/ent v0.8.0

on GitHub

This release contains several bug fixes, performance and runtime improvements, and multiple new features in ent/schema and ent-codegen.

The next release (~1 month from now) is going to be focused on adding support for ent schema-versioning, and the initial support for the new SQL schema migration. Proposal issues/discussions are going to be posted next week.

Users are welcome to join our Slack channel and subscribe to the Ent newsletter to get ~monthly updates on the new features, proposal discussions, and content we release.

How to update

go get -u entgo.io/ent@v0.8.0

Summary

entc/gen

• Allow extending and injecting dependencies to the generated clients/builders. See example in Ent website.
• Add Select option to <T>UpdateOne builders. See example in Ent website:

  pedro, err := client.Pet.
     UpdateOneID(id).
     SetAge(9).
     Select(pet.FieldName, pet.FieldAge).
     Save(ctx)

• (perf) Filter duplicate identifiers when loading O2M/M2O and M2M edges.
• Allow disabling the DISTINCT clause in queries (#1371).
• Change custom ordering/grouping functions format - This change can affect users that use custom ent.Order functions, and will require them to modify the function signature from func (*sql.Selector, func() bool) to func (*sql.Selector).
• Code generation API - Add global annotation option - See documentation.

ent/schema

• Major change: The codegen now uses the actual GoType defined in the schema in the generated builders/structs (see #1428).
  TL;DR - Using *T now means that you'll get *T as a field type (and not T). If you want to get T instead, define it in the GoType option instead, even if the sql.Scanner interface is implemented by the pointer (*T).
• Add database cascading deletion support to edge annotations. See FK annotation.
• Add support for custom DEFAULT clauses using entsql.Annotation:

  field.String("uuid").
     Annotation(entsql.Annotation{
         Default: "uuid_generate_v4()",
     })

• Add annotation for configuring FK symbols (#1423).

dialect/sql

• Add basic predicates for comparing 2 columns.
• Add on-conflict handling to sql builder (initial support for upsert).

dialect/sql/schema

• JSON column migration for MariaDB10.3.13 - Thanks @AnnatarHe for reporting this issue.
• Initial support for Postgres arrays in migration.

contrib

• Support additional types in entproto.
• Support ordering by ID fields in entgql.

Thanks, @dilipkk-foyernet, @enjoylife, @rubensayshi, @bshihr, @rotemtam, @alexsn, @cliedeman, @chrisguox, @uta-mori, @Bladrak for contributing to the Ent project and participating in this release.