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(DOCSP-29186): CRUD > Sort Results page (#19)
* (DOCSP-29186): CRUD > Sort Results page * Remove unnecessary import examples * remove sync dependency * Apply initial internal feedback * Convert to Flow.collect { } * Fix text search code example * Apply review feedback * Apply review feedback * Small fixes * Fix link * Update misses * Apply feedback
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‎examples/build.gradle.kts

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testImplementation(kotlin("test"))
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implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.0-Beta")
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implementation("org.mongodb:mongodb-driver-kotlin-coroutine:4.10.0-SNAPSHOT")
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implementation("org.mongodb:mongodb-driver-core:4.10.0-SNAPSHOT")
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implementation("org.slf4j:slf4j-api:1.7.32")
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implementation("ch.qos.logback:logback-classic:1.2.6")
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implementation("io.github.cdimascio:dotenv-kotlin:6.4.1")

‎examples/src/test/kotlin/SortTest.kt

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import com.mongodb.client.model.*
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import com.mongodb.client.model.Sorts.*
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import com.mongodb.kotlin.client.coroutine.MongoClient
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import io.github.cdimascio.dotenv.dotenv
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import kotlinx.coroutines.flow.toList
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import kotlinx.coroutines.runBlocking
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import org.bson.codecs.pojo.annotations.BsonId
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import org.junit.jupiter.api.AfterAll
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import org.junit.jupiter.api.Assertions.*
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import org.junit.jupiter.api.BeforeAll
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import org.junit.jupiter.api.TestInstance
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import java.util.*
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import kotlin.test.*
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@TestInstance(TestInstance.Lifecycle.PER_CLASS)
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internal class SortTest {
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companion object {
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// :snippet-start: sort-data-model
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data class FoodOrder(
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@BsonId val id: Int,
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val letter: String,
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val food: String
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)
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// :snippet-end:
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val dotenv = dotenv()
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val client = MongoClient.create(dotenv["MONGODB_CONNECTION_URI"])
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val database = client.getDatabase("cafe")
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val collection = database.getCollection<FoodOrder>("food_order")
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@BeforeAll
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@JvmStatic
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private fun beforeAll() {
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runBlocking {
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val foodOrders = listOf(
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FoodOrder(1, "c", "coffee with milk"),
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FoodOrder(3, "a", "maple syrup"),
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FoodOrder(4, "b", "coffee with sugar"),
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FoodOrder(5, "a", "milk and cookies"),
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FoodOrder(2, "a", "donuts and coffee"),
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FoodOrder(6, "c", "maple donut")
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)
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collection.insertMany(foodOrders)
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}
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}
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@AfterAll
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@JvmStatic
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private fun afterAll() {
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runBlocking {
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collection.drop()
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client.close()
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}
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}
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}
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@Test
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fun basicSortTest() = runBlocking {
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// :snippet-start: basic-sort
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collection.find().sort(Sorts.ascending("_id"))
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// :snippet-end:
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// Junit test for the above code
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val filter = Filters.empty()
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val expected = listOf(
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FoodOrder(1, "c", "coffee with milk"),
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FoodOrder(2, "a", "donuts and coffee"),
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FoodOrder(3, "a", "maple syrup"),
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FoodOrder(4, "b", "coffee with sugar"),
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FoodOrder(5, "a", "milk and cookies"),
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FoodOrder(6, "c", "maple donut")
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)
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assertEquals(expected, collection.find(filter).sort((ascending("_id"))).toList() )
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}
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@Test
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fun aggregationSortTest() = runBlocking {
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// :snippet-start: aggregation-sort
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val resultsFlow = collection.aggregate(listOf(
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Aggregates.sort(Sorts.ascending("_id"))
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))
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resultsFlow.collect { println(it) }
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// :snippet-end:
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// Junit test for the above code
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val expected = listOf(
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FoodOrder(1, "c", "coffee with milk"),
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FoodOrder(2, "a", "donuts and coffee"),
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FoodOrder(3, "a", "maple syrup"),
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FoodOrder(4, "b", "coffee with sugar"),
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FoodOrder(5, "a", "milk and cookies"),
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FoodOrder(6, "c", "maple donut")
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)
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assertEquals(expected, resultsFlow.toList())
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}
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@Test
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fun ascendingSortTest() = runBlocking {
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// :snippet-start: ascending-sort
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val resultsFlow = collection.find()
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.sort(Sorts.ascending("_id"))
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resultsFlow.collect { println(it) }
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// :snippet-end:
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// Junit test for the above code
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val expected = listOf(
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FoodOrder(1, "c", "coffee with milk"),
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FoodOrder(2, "a", "donuts and coffee"),
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FoodOrder(3, "a", "maple syrup"),
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FoodOrder(4, "b", "coffee with sugar"),
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FoodOrder(5, "a", "milk and cookies"),
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FoodOrder(6, "c", "maple donut")
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)
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assertEquals(expected, resultsFlow.toList())
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}
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@Test
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fun descendingSortTest() = runBlocking {
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// :snippet-start: descending-sort
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val resultsFlow = collection.find()
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.sort(Sorts.descending("_id"))
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resultsFlow.collect { println(it) }
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// :snippet-end:
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// Junit test for the above code
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val expected = listOf(
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FoodOrder(6, "c", "maple donut"),
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FoodOrder(5, "a", "milk and cookies"),
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FoodOrder(4, "b", "coffee with sugar"),
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FoodOrder(3, "a", "maple syrup"),
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FoodOrder(2, "a", "donuts and coffee"),
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FoodOrder(1, "c", "coffee with milk")
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)
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assertEquals(expected, resultsFlow.toList())
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}
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@Test
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fun handleTiesTest() = runBlocking {
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// :snippet-start: handle-ties-1
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collection.find().sort(Sorts.ascending(FoodOrder::letter.name))
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// :snippet-end:
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val results =
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// :snippet-start: handle-ties-2
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collection.find().sort(Sorts.ascending(FoodOrder::letter.name, "_id"))
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// :snippet-end:
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// Junit test for the above code
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val filter = Filters.empty()
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val expected = listOf(
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FoodOrder(2, "a", "donuts and coffee"),
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FoodOrder(3, "a", "maple syrup"),
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FoodOrder(5, "a", "milk and cookies"),
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FoodOrder(4, "b", "coffee with sugar"),
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FoodOrder(1, "c", "coffee with milk"),
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FoodOrder(6, "c", "maple donut")
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)
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assertEquals(expected, results.toList() )
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}
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@Test
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fun combineSortTest() = runBlocking {
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// :snippet-start: combine-sort
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val orderBySort = Sorts.orderBy(
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Sorts.descending(FoodOrder::letter.name), ascending("_id")
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)
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val results = collection.find().sort(orderBySort)
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results.collect {println(it) }
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// :snippet-end:
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// Junit test for the above code
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val filter = Filters.empty()
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val expected = listOf(
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FoodOrder(1, "c", "coffee with milk"),
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FoodOrder(6, "c", "maple donut"),
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FoodOrder(4, "b", "coffee with sugar"),
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FoodOrder(2, "a", "donuts and coffee"),
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FoodOrder(3, "a", "maple syrup"),
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FoodOrder(5, "a", "milk and cookies")
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)
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assertEquals(expected, results.toList() )
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}
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@Test
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fun textSearchTest() = runBlocking {
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// :snippet-start: food-order-score
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data class FoodOrderScore(
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@BsonId val id: Int,
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val letter: String,
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val food: String,
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val score: Double
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)
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// :snippet-end:
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// :snippet-start: text-search
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collection.createIndex(Indexes.text(FoodOrderScore::food.name))
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val metaTextScoreSort = Sorts.orderBy(
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Sorts.metaTextScore(FoodOrderScore::score.name),
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Sorts.descending("_id")
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)
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val metaTextScoreProj = Projections.metaTextScore(FoodOrderScore::score.name)
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val searchTerm = "maple donut"
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val searchQuery = Filters.text(searchTerm)
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val results = collection.find<FoodOrderScore>(searchQuery)
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.projection(metaTextScoreProj)
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.sort(metaTextScoreSort)
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results.collect { println(it) }
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// :snippet-end:
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// Junit test for the above code
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val expected = listOf(
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FoodOrderScore(6, "c", "maple donut",1.5),
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FoodOrderScore(3, "a", "maple syrup", 0.75),
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FoodOrderScore(2, "a", "donuts and coffee", 0.75),
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)
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assertEquals(expected, results.toList())
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}
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}

‎source/examples/generated/SortTest.snippet.aggregation-sort.kt

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val resultsFlow = collection.aggregate(listOf(
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Aggregates.sort(Sorts.ascending("_id"))
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))
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resultsFlow.collect { println(it) }

‎source/examples/generated/SortTest.snippet.ascending-sort.kt

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val resultsFlow = collection.find()
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.sort(Sorts.ascending("_id"))
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resultsFlow.collect { println(it) }

‎source/examples/generated/SortTest.snippet.basic-sort.kt

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collection.find().sort(Sorts.ascending("_id"))

‎source/examples/generated/SortTest.snippet.combine-sort.kt

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val orderBySort = Sorts.orderBy(
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Sorts.descending(FoodOrder::letter.name), ascending("_id")
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)
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val results = collection.find().sort(orderBySort)
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results.collect {println(it) }

‎source/examples/generated/SortTest.snippet.descending-sort.kt

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val resultsFlow = collection.find()
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.sort(Sorts.descending("_id"))
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resultsFlow.collect { println(it) }

‎source/examples/generated/SortTest.snippet.food-order-score.kt

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data class FoodOrderScore(
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@BsonId val id: Int,
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val letter: String,
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val food: String,
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val score: Double
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)

‎source/examples/generated/SortTest.snippet.handle-ties-1.kt

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collection.find().sort(Sorts.ascending(FoodOrder::letter.name))

‎source/examples/generated/SortTest.snippet.handle-ties-2.kt

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collection.find().sort(Sorts.ascending(FoodOrder::letter.name, "_id"))

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