NGram translates to Ngram which will cause an error

[aprilmintacpineda]

I have the following:

CreateIndex({
  name: 'searchUsersByName',
  terms: [
    { binding: 'search' }
  ],
  source: {
    collection: Collection('users'),
    fields: {
      search: Query(
        Lambda(
          ['row'],
          Union(
            NGram(
              LowerCase(
                Select(['data', 'firstName'], Var('row'))
              ),
              2,
              3
            ),
            NGram(
              LowerCase(
                Select(['data', 'middleName'], Var('row'))
              ),
              2,
              3
            ),
            NGram(
              LowerCase(
                Select(['data', 'surname'], Var('row'))
              ),
              2,
              3
            )
          )
        )
      )
    }
  }
});

And when I run fauna-schema-migrate generate, it generates the following:

CreateIndex({
  name: "searchUsersByName",
  terms: [{
    binding: "search"
  }],
  source: {
    collection: Collection("users"),
    fields: {
      search: Query(Lambda(["row"], Union(Ngram(LowerCase(Select(["data", "firstName"], Var("row"))), 2, 3), Ngram(LowerCase(Select(["data", "middleName"], Var("row"))), 2, 3), Ngram(LowerCase(Select(["data", "surname"], Var("row"))), 2, 3))))
    }
  }
})

Notice that NGram has been transformed into Ngram which is now incorrect. when I ran the migration, I got the following error:

Fauna Schema Migrate - 2.1.0
---------------------------------------
--- Starting subtask Retrieving current cloud migration state
--- Finished subtask Retrieved current migration state

Error in file: fauna/migrations/2021-05-02T03_43_07.746Z/create-index-searchUsersByName.fql
  Ngram is not defined

EDIT 1:

I tried manualy editing the generated migration to:

CreateIndex({
  name: "searchUsersByName",
  terms: [{
    binding: "search"
  }],
  source: {
    collection: Collection("users"),
    fields: {
      search: Query(Lambda(["row"], Union(NGram(LowerCase(Select(["data", "firstName"], Var("row"))), 2, 3), NGram(LowerCase(Select(["data", "middleName"], Var("row"))), 2, 3), NGram(LowerCase(Select(["data", "surname"], Var("row"))), 2, 3))))
    }
  }
})

I simply updated Ngram to NGram but somehow I still got the same error.

EDIT 2:

Okay, it's the same error but somehow different trails:

Fauna Schema Migrate - 2.1.0
---------------------------------------
--- Starting subtask Retrieving current cloud migration state
--- Finished subtask Retrieved current migration state
--------- Current cloud migrations----------
    2021-03-28T10:48:52.250Z
    2021-04-17T02:03:19.186Z
    2021-04-17T09:15:39.642Z
--------- Current local migrations ----------
    2021-03-28T10:48:52.250Z
    2021-04-17T02:03:19.186Z
    2021-04-17T09:15:39.642Z
    2021-05-02T03:43:07.746Z
--------- Task ----------
    apply 1 migrations


--- Starting subtask [ DB: ROOT ] Generate migration code
  Ngram is not defined
Stacktrace ReferenceError: Ngram is not defined

EDIT 3:

I have updated to version 2.1.2 but still the same error as above.

[rts-rob]

Thanks for submitting this, @aprilmintacpineda !

This appears to be coming from the JavaScript driver. Since NGram is not listed as one of the special cases, it is not converted to CamelCase correctly. We've created this issue in the JavaScript driver repo.

We'll update this issue once the JavaScript driver is updated.

[rts-rob]

Fixed in fauna/faunadb-js#487