problem with relations

[moczix]

part of server_angel.models;

@serializable
@orm
abstract class _User extends Model {

  String get username;
  String get googleAccountId;
  String get googleAccountEmail;
  String get picture;
  bool get isActive;
  bool get isSuspended;

  @HasMany()
  List<_UserTokens> get userTokens;

}

part of server_angel.models;

@serializable
@orm
abstract class _UserTokens extends Model {

  String get token;

  DateTime get expiredAt;

  @belongsTo
  _User get user;

}

then i make a query like this:

 UserQuery userQuery = UserQuery();
 userQuery.where.googleAccountId.equals(googlePayload.getUserId());
 User foundUser = await userQuery.getOne(_executor);`

query log:

SELECT users.id, users.username, users.google_account_id, users.google_account_email, users.picture, users.is_active, users.is_suspended, users.created_at, users.updated_at, a0.id, a0.token, a0.expired_at, a0.user_id, a0.created_at, a0.updated_at FROM users  LEFT JOIN (SELECT user_tokens.id, user_tokens.token, user_tokens.expired_at, user_tokens.user_id, user_tokens.created_at, user_tokens.updated_at, a0.id, a0.username, a0.google_account_id, a0.google_account_email, a0.picture, a0.is_active, a0.is_suspended, a0.created_at, a0.updated_at FROM user_tokens  LEFT JOIN users a0 ON user_tokens.user_id=a0.id) a0 ON users.id=a0.user_id WHERE users.google_account_id = '321312313213'

and got error:

ERROR:  column reference "id" is ambiguous
LINE 1: ...is_suspended, users.created_at, users.updated_at, a0.id, a0....

i got empty table :D just make a fresh call to test

[Tobe Osakwe]

I think this is because your relation is circular (UserTokens depends on User, but Users also depends on UserTokens). That being said, I will have to update the query builder, because it produced two different joins named “a0”. In the meantime, if you remove UserTokens’ dependency on Users, you will be fine. Also important: The _User class should be treated as just-a-schema. In practice, you’ll be using the generated User class, because it contains equality, hashCode, mutation, and more.

…

On Wed, Feb 13, 2019 at 2:41 PM moczix ***@***.***> wrote: `part of server_angel.models; @serializable <https://github.com/serializable> @Orm <https://github.com/Orm> abstract class _User extends Model { String get username; String get googleAccountId; String get googleAccountEmail; String get picture; bool get isActive; bool get isSuspended; @hasmany <https://github.com/hasmany>() List<_UserTokens> get userTokens; }` `part of server_angel.models; @serializable <https://github.com/serializable> @Orm <https://github.com/Orm> abstract class _UserTokens extends Model { String get token; DateTime get expiredAt; @belongsTo _User get user; }` then i make a query like this: UserQuery userQuery = UserQuery(); userQuery.where.googleAccountId.equals(googlePayload.getUserId()); User foundUser = await userQuery.getOne(_executor); query log: SELECT users.id, users.username, users.google_account_id, users.google_account_email, users.picture, users.is_active, users.is_suspended, users.created_at, users.updated_at, a0.id, a0.token, a0.expired_at, a0.user_id, a0.created_at, a0.updated_at FROM users LEFT JOIN (SELECT user_tokens.id, user_tokens.token, user_tokens.expired_at, user_tokens.user_id, user_tokens.created_at, user_tokens.updated_at, a0.id, a0.username, a0.google_account_id, a0.google_account_email, a0.picture, a0.is_active, a0.is_suspended, a0.created_at, a0.updated_at FROM user_tokens LEFT JOIN users a0 ON user_tokens.user_id=a0.id) a0 ON users.id=a0.user_id WHERE users.google_account_id = '321312313213' and got error: ERROR: column reference "id" is ambiguous LINE 1: ...is_suspended, users.created_at, users.updated_at, a0.id, a0.... i got empty table :D just make a fresh call to test — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#58>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AJiKPE78LC_MuOxAAfeP2p8mNZ0b7Sruks5vNGp0gaJpZM4a6IW0> .

[moczix]

yes yes ;p im using User class :D but wanna report this isue to let you know

[Tobe Osakwe]

Cool, thanks.

But I also mean that even in the schema, use the public class, ex:

@hasMany
List<UserToken> get tokens;

[moczix]

when i remove underscore and use public class and run build runner i got error:
Unsupported operation: Cannot apply relationship to field "user" - dynamic is not assignable to Model.

And its okey, because the public class doesnt exist at the moment of building ;d

[Tobe Osakwe]

Yes, this is why you need the multi-target build setup:

targets:
  _standalone:
    sources:
      - lib/src/models/user.dart
  $default:
    dependencies:
      - :_standalone
    sources:
      - lib/src/models/user_token.dart

This way, you can have your models in separate files, and the resolver will able to find them at build-time.

[Tobe Osakwe]

build.yaml documentation:

https://pub.dartlang.org/packages/build_config

[moczix]

ah oke oke :D

[Tobe Osakwe]

Are you still experiencing this error, or can I go ahead and close this?

[Tobe Osakwe]

Closing, as I don't believe this error occurs anymore.

[Tobe Osakwe]

For anyone who runs into this in the future, see thread #80.

The underlying cause is upstream: dart-lang/build#2146