Field createdAt doesn't have a default value Issue

Issue type:

[ ] question [x ] bug report [ ] feature request [ ] documentation issue

Database system/driver:

[ ] cordova [ ] mongodb [x ] mssql [ ] mysql / mariadb [ ] oracle [ ] postgres [ ] cockroachdb [ ] sqlite [ ] sqljs [ ] react-native [ ] expo

TypeORM version:

[x ] latest [ ] @next [ ] 0.x.x (or put your version here)

Steps to reproduce or a small repository showing the problem:

I define my User.ts createdAt field in the following way

  @CreateDateColumn({ name: 'createdAt', type: 'datetime' })
  createdAt: Date

If I try to create a new user via the following code

  ...
  sampleUser.createdAt = new Date()
  ...

  await getRepository(User).save(sampleUser)

I get this error:

UnhandledPromiseRejectionWarning: QueryFailedError: ER_NO_DEFAULT_FOR_FIELD: Field 'createdAt' doesn't have a default value

I went into node_modules typeorm code and console logged the query and the params:

[ '[e-mail]',
  'John Doe',
  'hashedpass',
  'salt',
  'test',
  1,
  'admin' ] /// the createdAt field is missing?

Here is the definition of the createdAt property in my sql table:

`createdAt` DATETIME NOT NULL,

The query looks good, but the field createdAt is missing from the params.

1. The errors should log more details, like the full query and the full params. Some errors are so general that I have no idea where to start debugging.
2. I’m working on an existing database and I don’t want to run sync, so my table doesn’t have a default value for the createdAt field. Still, I should be able to set my own createdAt field in the code. I fail to understand why something so basic, simple and so straightforward fails?

[AlexMesser]

I’m working on an existing database and I don’t want to run sync, so my table doesn’t have a default value for the createdAt field. Still, I should be able to set my own createdAt field in the code

@CreateDateColumn uses database level default to generate a new timestamp. So, you can’t use this decorator without any changes to the database schema.

[sang-w0o]

Without using the “skipping” way shown in this issue’s title, the same issue is also happening with MySQL and MariaDB also.

It also happens with @UpdateDateColumn decorator.