feat: Initial Supabase Functions/Triggers implementation

[bennajah]

This PR introduces a foundational implementation for managing PostgreSQL functions and triggers using Drizzle ORM in a Supabase environment. It provides a type-safe, declarative API to define database functions and their associated triggers.

Details:

1. Added PgFunction class and factory with support for:
   PostgreSQL function properties such as return type, language, behavior, security, search path, and SQL body.

2. Added PgTrigger class and factory supporting:
   Trigger configuration on tables, including multiple events, trigger type, orientation (row/statement), and linked function execution.

Example:

import { sql } from "drizzle-orm/sql";
import { authUsers, pgFunction, pgTrigger } from "drizzle-orm/supabase";

export const handleNewUser = pgFunction("handle_new_user", {
  returns: "trigger",
  language: "plpgsql",
  security: "definer",
  behavior: "volatile",
  searchPath: "",
  body: sql`$$
    begin
      insert into public.users (id, email)
      values (new.id, new.email);
      return new;
    end;
    $$`,
});

export const onAuthUserCreated = pgTrigger("on_auth_user_created", {
  table: authUsers,
  events: ["insert"],
  triggerType: "after",
  orientation: "row",
  function: handleNewUser,
});

[marcospgp]

this is so cool!

[arthberman]

we need this!

[rooagi-lw]

we need this!

[avalanche-tm]

This is amazing!

[avalanche-tm]

@bennajah can't wait for this PR to be approved and I tried to patch my local drizzle-orm with your PR commit. Unfortunately it didn't generate functions and trigger in the migration file. Do you have any way of patching this which works?

[bennajah]

@avalanche-tm
This just initial implementation which not fully implemented to generate the migration

[avalanche-tm]

@avalanche-tm This just initial implementation which not fully implemented to generate the migration

Ahh I see. That makes me a sad panda :(

[tkachis]

@avalanche-tm

Hey!
I created a wrapper for drizzle-kit to simplify working with new entities.
It’s just a helper script - generated with GPT, slightly tweaked manually, and tested but not intended for production use.

https://playcode.io/2523779

Usage:

1. Place the file in your project’s root directory.
2. Update the paths inside the script to match your setup.
3. Run it with: tsx drizzle-wrapper.ts generate