在 Vapor 命令中使用 Fluent

Question

I'm trying to use Fluent in a Command and I have this problem:

On this query:

let location: Location? = try? Location.query(on: context.application.db).filter(\.geId == 123).first().wait()

I get: Type of expression is ambiguous without more context"

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When I remove the filter, everything is fine:

let location: Location? = try? Location.query(on: context.application.db).first().wait()

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When I make the var non optional:

let location: Location = try? Location.query(on: context.application.db).filter(\.geId == 123).first().wait()

I get: Cannot convert value of type 'Location?' to specified type 'Location' Cannot convert value of type 'Location?' to specified type 'Location'

The same query is working on a Route with flatMap instead of the wait()

So, I'm a bit confused. Where ist my error?

Answer 1

This was a simple one... Just missing the

import Fluent

Thanks to @0xTim at Discord:)