Query Argument for Get Method

[SubutaDan]

Hello,
I want to pass an entity to a Repository.get method so I can use a field from the entity as a query parameter. From the example program on Flutter by Example it seems that I should be able to do that, but my get method doesn't accept an instance variable:

//I can't do this:
Repository().get<MyModelType>(myModelInstance);
because I get:

Too many positional arguments: 0 expected, but 1 found.

Is passing instance variables to Repository.get methods supported? How can I pass a value to be used as a query parameter for a get?
Thanks.
-Dan

[tshedor]

@SubutaDan no, geting an instance is not supported because, well, you already have that instance.

If you're trying to fetch the latest data of something, you can do a query based on Brick's internal primary key:

import 'package:brick_sqlite_abstract/db.dart';

final repositoryInstances = Repository().get<MyModelType>(query: Query.where(InsertTable.PRIMARY_KEY_FIELD, myModelInstance.primaryKey, limit1: true);
final hydratedInstance = (repositoryInstances?.isNotEmpty ?? false) ? repositoryInstances.first : null;

[SubutaDan]

Thanks, @tshedor , but my question is slightly different. Sorry I wasn't more clear.

Is there a way to pass a URL query string argument to a get method:

https://myapiserver.com/cats?name=${i_want-to_pass_in_this_value}

If the method is a PUT or a POST I can use an instance field in the query string but I don''t know how to pass a value for a GET as there is no instance.

-Dan

[tshedor]

@SubutaDan

Ah, I got you. Yes. endpoint: uses an instance and query as its parameters.

@ConnectOfflineFirstWithRest(
  restConfig: RestSerializable(
    endpoint: r'''{
      if (query?.action == QueryAction.get && query?.where != null) {
        final name = Where.firstByField('name', query.where)?.value;
        if (name != null) return "/cats?name=${name}";
      }

      return "/cats";
    }''';
  )
)
class Cat extends OfflineFirstWithRestModel {}

And then you'd invoke this:

await Repository().get<Cat>(query: Query.where('name').isExactly('Old Deuteronomy'));

Of course, it's up to you on how to handle the query operator, so isExactly, contains, notEqual will all be the same with the above implementation of endpoint:.

[SubutaDan]

Thanks, Tim. This makes sense and I will try it.

…

-Dan

On 4 January 2021 00:57:03 GMT, Tim Shedor ***@***.***> wrote: @SubutaDan Ah, I got you. Yes. `endpoint:` uses an [`instance` and `query` as its parameters](https://github.com/greenbits/brick/blob/master/packages/brick_rest/README.md#with-querywhere). ```dart @ConnectOfflineFirstWithRest( restConfig: RestSerializable( endpoint: r'''{ if (query?.action == QueryAction.get && query?.where != null) { final name = Where.firstByField('name', query.where)?.value; if (name != null) return "/cats?name=${name}"; } return "/cats"; }'''; ) ) class Cat extends OfflineFirstWithRestModel {} ``` And then you'd invoke this: ```dart await Repository().get<Cat>(query: Query.where('name').isExactly('Old Deuteronomy')); ``` Of course, it's up to you on how to handle the query operator, so `isExactly`, `contains`, `notEqual` will all be the same with the above implementation of `endpoint:`. -- You are receiving this because you were mentioned. Reply to this email directly or view it on GitHub: #116 (comment)

-- Sent from my Android device with K-9 Mail. Please excuse my brevity.

[tshedor]

Hi @SubutaDan could you please give this mixin a try?

[SubutaDan]

I'll try :)

…

On 18 January 2021 23:10:46 GMT, Tim Shedor ***@***.***> wrote: Hi @SubutaDan could you please [give this mixin a try](https://github.com/greenbits/brick/pull/121/files#diff-846d1cac334f035bf435dacd34232da6f0e1522ed2c097684a5a39fd0c761a06)? -- You are receiving this because you were mentioned. Reply to this email directly or view it on GitHub: #116 (comment)

-- Sent from my Android device with K-9 Mail. Please excuse my brevity.

[tshedor]

Closing this issue; confirmed working