Typeorm Migrations

Learn how to do migrations in Typeorm.
Beginner code: github.com/ben...
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[@lucasharca]

You saved my life. I was stuck with docker and typeorm migrations for a job opporunity test, and the combination of your videos just saved me. Thank you very much

[@89Manux]

I rarely get stuck or look for video tutorials, but I was able to make Migrations work with NestJS thanks to your video. You've earned my subscription

[@bawad]

Awesome!

[@bolarinwaowuogba3268]

You just saved me a ton of stress Ben, thanks!

[@rdvanaltun7668]

The way create to migration is same like Django. I thinks this is the best approch to use ORMs. Thanks for the video.

[@salemouail627]

bring back this ben awad

[@willcalltickets]

Much more readable - thank you!

[@OfficialSpimy]

It's kinda baffling how despite the numerous of JS frameworks there are out there, there still isn't an ORM with a powerful and simple migration system as Django does

[@nothingtoseehere2704]

I mean, what about Prisma?

[@LethiuxX]

I don't understand how you initialize a database with the code first approach. I just can't find how to do this.

[@sagargopale8718]

Thank you for the video. So technically if the "up" script fails the db connection fails and app crashes, right? Is there a way we can recover the db connection if "up" script fails?

[@dawid_dahl]

Such a great feature. Thank you!

[@leojkwan]

dude you saved me like 3 hours of digging, I've been stuck on why my migration commands would throw `function(exports, require, __filename).... Thanks for this tut Ben
How did you figure this out?

[@bawad]

glad it was helpful, I can't remember how I figured that out

[@BioAbner]

How do I make sure that typeorm never erases any of my data?
I lost about a day's work because of the synchronize feature and I'm scared of starting up my typeorm server again.

[@dennistennis5622]

Realy Nice video Ben! Thanks! Going to use it for sure.

[@user-viskqlkqudh]

Thank you for nice lecture video, Ben ! But I'm having a trouble with ormconfig.json, which I divide its name property into 'dev' & 'test'. In this case, if I run the command(`npx ts-node ./node_modules/.bin/typeorm migration:generate -n Test`), it goes ERROR ( Can't find connection default ). So i've tried add NODE_ENV=dev, but it didn't work. Is there anything I can do to solve this ?

[@user-viskqlkqudh]

Sorry for excuse. There's an option for selecting a db's name by `-c` ! Solved it. Thank you.

[@bawad]

No worries, nice find

[@noahbartfield3610]

This was a really helpful tutorial. I'm getting an Error when I try to do a migration:generate, though. Any ideas why I'd be getting 'Error: getaddrinfo ENOTFOUND database database:5432 at GetAddrInfoReqWrap.onlookup [as oncomplete]'? Thanks!

[@grygoriishevchenko2196]

when using docker-compose I fix it with the second ormconfig.json file for cli connections where {host: 'localhost'}.
example
./docker-compose.yaml
....
db:
image: 'mysql:5.7.10'
ports:
- '3306:3306'
...
npm run typeorm migration:generate -- -n User -f ormconfig_2.json

[@jonasgroendahl]

can TypeORM generate all the SQL statements that will eventually create all tables based on the models?

[@jsceo]

typeorm migration:generate -n CreateDatabase

[@samuelgunter]

yes, just make sure when you run the generate command, your database has no tables or anything. Either move the `postgresdata` folder to somewhere else (if you want to preserve data), or just delete the `postgresdata` folder and restart postgres

[@attranmanh8197]

Can I generate a migration "create table" files by passing some entities?

[@faiwi9646]

It's for how to alter table I am searching for how to create new tables.

[@TheDoktorot]

Migrations do not work with .env file. Its a dealbreaker

[@GraxS]

Hey what utility do you use for command tips

[@bawad]

fish shell

[@vladimirjean]

Great video... Although, I'm getting this error *Error during migration run {password authentication failed for user "", routine: 'auth_failed"} . Can you please help me?

[@bawad]

did you set a password in your ormconfig.json

[@vladimirjean]

@@bawadyes I did, I'm still doing some research on a fix, thanks for your quick reply

[@RaghavendraGowda7]

I see it doesnt work for one to one relation?

[@bawad]

I'm not sure

[@dennistennis5622]

Hi Ben , have you used some kind of clustering in your node apps?
Something like this:
github.com/gottsohn/multi-core-node-js-example/blob/master/index.js

[@bawad]

I haven't. Usually I replicate the docker container

[@dennistennis5622]

Ben Awad I understand. I am using heroku, so no docket there. Thanks!

[@bawad]

Oh I see