Drizzle Team•13mo ago

Conditional Select in M2M findMany Type Inference

hey there, I'm adding a method that allows the user to either get a list of objects, and sometimes get related objects al well (members). it works fine function-wise - but for some reason, the addition of the ternary doesn't give me any type hints. I'd assume it'll add them conditionally... Is this a bug? am I missing anything? here is my code's paraphrase:

return db.query.projects.findMany({
    columns: {
        id: true
    },
    with: {
        membersMapping: {
            columns: {
                memberId: true,
            },
            //** this makes the type inference crazy!
            with: withMembers ? { member: { columns: { name: true, age: true } } } : {}
        }
    }
})

return db.query.projects.findMany({
    columns: {
        id: true
    },
    with: {
        membersMapping: {
            columns: {
                memberId: true,
            },
            //** this makes the type inference crazy!
            with: withMembers ? { member: { columns: { name: true, age: true } } } : {}
        }
    }
})

1 Reply

Angelelz•13mo ago

Typescript usually does a good job inferring types but in this case you might need to either annotate the type or wrap this code in a generic function from which the final type can be inferred

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Conditional Select in M2M findMany Type Inference