How to use mattes/migrate in golang? - postgresql

Question

I've been trying to use the mattes/migrate package but I can't seem to get it to actually do anything. The database runs on postgres and I interact with it through sqlx.
I've gone through the readme on github, and applied the following code:
// use synchronous versions of migration functions ...
allErrors, ok := migrate.UpSync("postgres://<my_url_string>", "./app/database/migrations")
if !ok {
fmt.Println("Oh no ...")
// do sth with allErrors slice
}
My schema is initiated like this:
//sqlx's initiated DB is imported in the database package
func SyncSchemas() {
database.DB.MustExec(schema)
}
var schema =
`CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
CREATE TABLE IF NOT EXISTS examples (
created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
deleted_at text DEFAULT NULL,
id UUID PRIMARY KEY UNIQUE NOT NULL DEFAULT uuid_generate_v4()
);`
type Example struct {
ID string `json:"id" db:"id"`
CreatedAt time.Time `json:"created_at" db:"created_at"`
DeletedAt *time.Time `json:"deleted_at" db:"deleted_at"`
}
It runs without error, but that's all it seems to be doing at the moment. Shouldn't it keep track of my schemas or something? I previously used gorm as my ORM, and there I just had to run autoMigrate() on a schema and it automatically created and applied migrations as I changed the schema. I would like the same functionality with mattes/migrate, but I can't seem to find an example or tutorial which shows how to use it.
How am I supposed to do this?

Answer 1

One suggestion in whenever you code in Golang is to check the errors do it in this way
if allErrors, ok := migrate.UpSync("postgres://<my_url_string>", "./migrations"); !ok {
fmt.Println("Oh no ...", ok)
// do sth with allErrors slice
}
As I don't know what is your error at least in this way you can check what your error is.