Support maximumLimit in pagination

[ec8or]

At the moment, you can only change the maximum limit in the overall settings. This enables support for the maximumLimit setting per model.

Issues

• https://github.com/silverstripe/silverstripe-graphql/issues/543

[ec8or]

I could try and have a look, but doesn't seem like there's any tests for setting it via the main config at the moment (or for defaultLimit)?

[flamerohr]

@GuySartorelli looking into this for @ec8or, how would I test PaginationPlugin::apply?

I had found testBasicPaginator but that seems to use its own resolver with IntegrationTestResolver::testPaginate

[GuySartorelli]

Probably the simplest way, without diving in too deep, would be to set up a new test schema folder, set up whatever schema you need in order to test a) without setting this and b) with setting this, and then write a test that executes a query on each of those scenarios. I can't go into more detail than that without diving into the code myself though, and unfortunately I don't have time for that right now. Does this give you enough to work from?

[GuySartorelli]

Ultimately though, if you can't get a test working with the time you have to look into this, then if you can give me a simple example of how to test it locally that would be okay for now.

[flamerohr]

Thanks! I'm not sure if I'll have the time to build something new like that.

I can include test schema data that I had in mind for this.

The query I'd use for both scenarios:

query {
  readMyTypes(limit: 5) {
    nodes {
        field1
    }
    pageInfo {
      totalCount
    }
  }
}

For with the config schema:

SilverStripe\GraphQL\Tests\Fake\DataObjectFake:
  fields:
    myField: true
  operations:
    read:
      plugins:
        paginateList:
          maximumLimit: 3

and the query from above, which checks the size of nodes to be 3, and totalCount to be something greater than 5.

For without the config schema:

SilverStripe\GraphQL\Tests\Fake\DataObjectFake:
  fields:
    myField: true
  operations:
    read:
      plugins:
        paginateList: true

and the query from above, which checks the size of nodes to be 5, and totalCount to be something greater than 5.

[GuySartorelli]

I've changed the target branch to 5 since we won't be releasing any new minor versions for the 4.x release line, and I've rebased the PR so it can merge into the 5 branch without issues. The actual code change in this PR hasn't changed.