MongoDB request DSL • opensavvy.ktmongo.dsl.aggregation.operators • ArrayValueOperators • sortedBy

sortedBy

open fun <Context : Any, T> Value<Context, Collection<T>>.sortedBy(order: SortOptionDsl<T & Any>.() -> Unit): Value<Context, List<T>>

Sorts an array based on fields of its elements.

Example

class Score(
    val value: Int,
)

class Player(
    val _id: ObjectId,
    val scores: List<Score>,
    val bestScores: List<Score>,
)

players.updateManyWithPipeline {
    set {
        Player::bestScores set Player::scores
            .sortedBy { ascending(Score::value) }
    }
}

External resources

• Official documentation

See also

• ArrayValueOperators.sorted Sort by the elements themselves (ascending order).

• ArrayValueOperators.sortedDescending Sort by the elements themselves (descending order).

open fun <Context : Any, T> Field<Context, Collection<T>>.sortedBy(order: SortOptionDsl<T & Any>.() -> Unit): Value<Context, List<T>>

Sorts an array based on fields of its elements.

Example

class Score(
    val value: Int,
)

class Player(
    val _id: ObjectId,
    val scores: List<Score>,
    val bestScores: List<Score>,
)

players.updateManyWithPipeline {
    set {
        Player::bestScores set Player::scores
            .sortedBy { ascending(Score::value) }
    }
}

External resources

• Official documentation

See also

• ArrayValueOperators.sorted Sort by the elements themselves (ascending order).

• ArrayValueOperators.sortedDescending Sort by the elements themselves (descending order).

open fun <Context : Any, T> KProperty1<Context, Collection<T>>.sortedBy(order: SortOptionDsl<T & Any>.() -> Unit): Value<Context, List<T>>

Sorts an array based on fields of its elements.

Example

class Score(
    val value: Int,
)

class Player(
    val _id: ObjectId,
    val scores: List<Score>,
    val bestScores: List<Score>,
)

players.updateManyWithPipeline {
    set {
        Player::bestScores set Player::scores
            .sortedBy { ascending(Score::value) }
    }
}

External resources

• Official documentation

See also

• ArrayValueOperators.sorted Sort by the elements themselves (ascending order).

• ArrayValueOperators.sortedDescending Sort by the elements themselves (descending order).

open fun <Context : Any, T> Collection<T>.sortedBy(order: SortOptionDsl<T & Any>.() -> Unit): Value<Context, List<T>>

Sorts an array based on fields of its elements.

Example

class Score(
    val value: Int,
)

class Player(
    val _id: ObjectId,
    val scores: List<Score>,
    val bestScores: List<Score>,
)

players.updateManyWithPipeline {
    set {
        Player::bestScores set Player::scores
            .sortedBy { ascending(Score::value) }
    }
}

External resources

• Official documentation

See also

• ArrayValueOperators.sorted Sort by the elements themselves (ascending order).

• ArrayValueOperators.sortedDescending Sort by the elements themselves (descending order).