WillChange

public struct WillChange<Collection> : Publisher where Collection : RealmSubscribable, Collection : ThreadConfined

A publisher which emits Void each time the object is mutated.

Despite the name, this actually emits after the collection has changed.

Failure
This publisher cannot fail.
Declaration
Swift

public typealias Failure = Never
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Output
This publisher emits Void.
Declaration
Swift

public typealias Output = Void
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                    saveToken(on:at:)

Captures the NotificationToken produced by observing a Realm Collection.

This allows you to do notification skipping when performing a Realm.write(withoutNotifying:). You should use this call if you require to write to the Realm database and ignore this specific observation chain. The NotificationToken will be saved on the specified KeyPathfrom the observation block set up in receive(subscriber:).

Declaration

Swift

public func saveToken<T>(on object: T, at keyPath: WritableKeyPath<T, NotificationToken?>) -> WillChangeWithToken<Collection, T>

Parameters

`object`	The object which the `NotificationToken` is written to.
`keyPath`	The KeyPath which the `NotificationToken` is written to.

Return Value

A WillChangeWithToken Publisher.

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