UPDATE query methods must either return void or int (the number of updated rows) while trying to ret-CodePudding

Koltin version : 1.6.21.

Room dependencies :

implementation "androidx.room:room-runtime:2.4.2"
implementation "androidx.room:room-ktx:2.4.2"
kapt "androidx.room:room-compiler:2.4.2"
implementation "androidx.room:room-rxjava2:2.4.2"
testImplementation "androidx.room:room-testing:2.4.2"

Here is the query method :

@Query("UPDATE releve SET accuracy_indicator = :isEnabled WHERE id_local = :releveId")
    fun updateAccuracyIndicator(releveId: Long, isEnabled: Boolean): Flow<Int>

I don't know how to handle this issue ?

CodePudding user response：

An update operation is a one-shot so it should return a single Int rather than a flow of Ints. You can make the return type Int, and you can optionally mark the function suspend so it won’t block the caller.