gomodifytags VS migrate

gomodifytags

https://github.com/fatih/gomodifytags - generate or modify struct tags

I suspect it's because Go's general philosophy is that it's better to be verbose and explicit (than terse and magical). Probably falls under "clear is better than clever" from Rob Pike's Go Proverbs: http://go-proverbs.github.io/

I think if this feature was added, it would not be with struct tags, but with an Encoder.SetFieldTransform(json.SnakeCase) or similar setting.

That might be quite a nice feature, actually. You could provide your own function to transform names when marshaling, and for unmarshaling it would strip punctuation and match case insensitively (because it's hard to do the reverse transform, for example should user_id go to UserId or UserID, and if the latter, how does the transform know?).

In any case, it seems like an issue was opened proposing something like that a couple of years ago (https://github.com/golang/go/issues/23027), and Russ Cox responded that the JSON package is basically done, but you could either fork it and add the feature, or use a tool that modifies struct tags like https://github.com/fatih/gomodifytags

Go does not natively support the use of migrations, but we could use the ORM that has this functionality, such as GORM which is the most used by the community, but We can use migrations without using an ORM, for this we will use the golang-migrate package.

$ curl -L https://github.com/golang-migrate/migrate/releases/download/$version/migrate.$os-$arch.tar.gz | tar xvz

Golang-migrate is a database migration tool designed for Go applications. It helps manage and apply changes to the database schema as the application grows, ensuring that the code and database structure stay in sync.

First of all, thank you for SQLAlchemy! If I ever had to make a final choice in how I would interact with a database for a very large project that involves a considerable dev team, I would always bet on SQLAlchemy. Not that I would necessarily like all aspects of it, but when it comes to Python and SQL - “Nobody ever got fired for picking SQLAlchemy.”.

With that out of the way, despite ORMs doing much more than "just writing SQL", it is exactly on that point that I flinch: Most devs should be exposed to SQL. And if your project allows you to build around simple enough abstractions so that you aren't reinventing the wheel, you should definitely be writing SQL. Especially if you don't know SQL yet - which is the growing case of new devs coming into the job market.

You can achieve a lot with SQlAlchemy Core, a tool that I absolutely recommend, but my post is just a simple alternative to get developers to think about their approach. If that results in some devs reconsidering using "full fat" SQLAlchemy and to try SQLAlchemy Core, that's a win for me!

Your gist tries to highlight the difficulty of doing certain things without an ORM. Migrations (as just 1 example) doesn't need to be hard, simple tools like flyway, or migrate (https://github.com/golang-migrate/migrate) achieve a similar result (while also keeping you on the path of writing SQL!). Deep and complex relationships between objects also don't need to be hard - typically people approach this subject with a requirement to be very flexible in the way they want to build queries and objects, but that to me in a sign that maybe they should reconsider their business logic AND reconsider that, just maybe, their project doesn't require all that flexibility, it is fairly straightforward to extend objects and introduce some more complex representations as and when it is needed - will all of this make me write code faster? Absolutely not. That is why you have spent so much time perfecting SQLAlchemy, but then again, I am not advocating for devs to go and replace their usage of ORMs, just presenting an alternative that may or may not fit their needs for a new project + give devs the chance to learn something that the ORM might have taken away.

Doing this now with a mysql db for my use case. Using sp to take a large chunk of data migration load off my data layer code. I am using migrate (go library) for migrations and hooked it up with a bunch of test suites for all SP and Triggers it creates. I test it against a testDB maintained as part of my CI/CD. Haven’t had an issue with production yet. It does however require quite a bit of initial setup.

Before we can start using MySQL we need to create a table to store our data. I will be using excellent migrate database migrations tool, it can also be imported as a libraray.

We need a database table to store our application's users' data. To generate and migrate a schema, we'll use golang migrate. Kindly follow these instructions to install it on your Operating system. To create a pair of migration files (up and down) for our user table, issue the following command in your terminal and at the root of your project: