DOCSP-41128: delete docs

snooty.toml

@@ -23,4 +23,5 @@ version = "v{+version-number+}"
 patch-version-number = "{+version-number+}.0"
 mdb-server = "MongoDB Server"
 stable-api = "Stable API"
-api = "https://mongodb.github.io/mongo-java-driver/{+version-number+}/apidocs/mongodb-driver-kotlin-sync"
+api = "https://mongodb.github.io/mongo-java-driver/{+version-number+}/apidocs/mongodb-driver-kotlin-sync"
+core-api = "https://mongodb.github.io/mongo-java-driver/{+version-number+}/apidocs/mongodb-driver-core/"

source/includes/write/delete.kt

@@ -0,0 +1,35 @@
+import com.mongodb.client.model.DeleteOptions
+import com.mongodb.client.model.Filters.*
+import com.mongodb.kotlin.client.MongoClient
+
+// start-data-class
+data class Restaurant(val name: String, val borough: String)
+// end-data-class
+
+fun main() {
+    val uri = "<connection string>"
+
+    val mongoClient = MongoClient.create(uri)
+    val database = mongoClient.getDatabase("sample_restaurants")
+    val collection = database.getCollection<Movie>("restaurants")
+
+    // start-delete-one
+    val filter = eq(Restaurant::name.name, "Happy Garden")
+    val result = collection.deleteOne(filter)
+    // end-delete-one
+
+    // start-delete-many
+    val filter = and(
+        eq(Restaurant::borough.name, "Brooklyn"),
+        eq(Restaurant::name.name, "Starbucks")
+    )
+    val result = collection.deleteMany(filter)
+    // end-delete-many
+
+    // start-delete-options
+    val opts = DeleteOptions().comment("sample comment")
+    val filter = regex(Restaurant::name.name, "Red")
+    val result = collection.deleteOne(filter, opts)
+    // end-delete-options
+
+}

source/write-operations.txt

@@ -18,16 +18,18 @@ Write Data to MongoDB
    :description: Learn how to use the Kotlin Sync driver to write data to MongoDB.
    :keywords: usage examples, save, crud, create, code example
 
-.. .. toctree::
-..    :titlesonly:
-..    :maxdepth: 1
+.. toctree::
+   :titlesonly:
+   :maxdepth: 1
+
+   /write/delete
+
 .. 
-..    /write/insert
-..    /write/update
-..    /write/replace
-..    /write/delete
-..    /write/bulk-write
-..    /write/gridfs
+   /write/insert
+   /write/update
+   /write/replace
+   /write/bulk-write
+   /write/gridfs
 
 Overview
 --------
@@ -149,8 +151,8 @@ collection:
    :copyable:
    :dedent:
 
-.. To learn more about the ``delete_one()`` method, see the
-.. :ref:`Delete Documents <kotlin-sync-write-delete>` guide.
+To learn more about the ``deleteOne()`` method, see the
+:ref:`Delete Documents <kotlin-sync-write-delete>` guide.
 
 Delete Multiple
 ---------------
@@ -165,8 +167,8 @@ collection:
    :copyable:
    :dedent:
 
-.. To learn more about the ``delete_many()`` method, see the
-.. :ref:`Delete Documents <kotlin-sync-write-delete>` guide.
+To learn more about the ``deleteMany()`` method, see the
+:ref:`Delete Documents <kotlin-sync-write-delete>` guide.
 
 Bulk Write
 ----------

source/write/delete.txt

@@ -0,0 +1,198 @@
+.. _kotlin-sync-write-delete:
+
+================
+Delete Documents
+================
+
+.. contents:: On this page
+   :local:
+   :backlinks: none
+   :depth: 2
+   :class: singlecol
+
+.. facet::
+   :name: genre
+   :values: reference
+
+.. meta::
+   :keywords: remove, drop, code example
+
+Overview
+--------
+
+In this guide, you can learn how to use the {+driver-short+} to remove
+documents from a MongoDB collection by performing **delete operations**.
+
+A delete operation removes one or more documents from a MongoDB collection.
+You can perform a delete operation by using the ``deleteOne()`` or
+``deleteMany()`` methods.
+
+.. TODO .. tip:: Interactive Lab
+
+..    This page includes a short interactive lab that demonstrates how to
+..    modify data by using the ``deleteMany()`` method. You can complete this
+..    lab directly in your browser window without installing MongoDB or a code editor.
+
+..    To start the lab, click the :guilabel:`Open Interactive Tutorial` button at the
+..    top of the page. To expand the lab to a full-screen format, click the
+..    full-screen button (:guilabel:`⛶`) in the top-right corner of the lab pane.
+
+Sample Data
+~~~~~~~~~~~
+
+The examples in this guide use the ``sample_restaurants.restaurants`` collection
+from the :atlas:`Atlas sample datasets </sample-data>`. To learn how to create a
+free MongoDB Atlas cluster and load the sample datasets, see the
+:atlas:`Get Started with Atlas </getting-started>` guide.
+
+The documents in this collection are modeled by the following {+language+} data class:
+
+.. literalinclude:: /includes/write/delete.kt
+   :start-after: start-data-class
+   :end-before: end-data-class
+   :language: kotlin
+   :copyable:
+   :dedent:
+
+Delete Operations
+-----------------
+
+You can perform delete operations in MongoDB by using the following methods:
+
+- ``deleteOne()``, which deletes *the first document* that matches the search criteria
+- ``deleteMany()``, which deletes *all documents* that match the search criteria
+
+Each delete method requires a **query filter** document, which specifies the
+search criteria that determine which documents to select for removal.
+To learn more about query filters, see the :ref:`kotlin-sync-specify-query` guide.
+
+Delete One Document
+~~~~~~~~~~~~~~~~~~~
+
+The following example uses the ``deleteOne()`` method to remove a
+document in which the value of the ``name`` field is ``"Happy Garden"``:
+
+.. literalinclude:: /includes/write/delete.kt
+   :start-after: start-delete-one
+   :end-before: end-delete-one
+   :language: kotlin
+   :copyable:
+   :dedent:
+
+Delete Multiple Documents
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The following example uses the ``deleteMany()`` method to remove all documents
+in which the value of the ``borough`` field is ``"Brooklyn"`` and the
+value of the ``name`` field is ``"Starbucks"``:
+
+.. literalinclude:: /includes/write/delete.kt
+   :start-after: start-delete-many
+   :end-before: end-delete-many
+   :language: kotlin
+   :copyable:
+   :dedent:
+
+Customize the Delete Operation
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The ``deleteOne()`` and ``deleteMany()`` methods optionally accept a
+``DeleteOptions`` parameter, which represents options you can use to
+configure the delete operation. If you don't specify any
+options, the driver performs the delete operation with default settings.
+
+The following table describes the setter methods that you can use to
+configure a ``DeleteOptions`` instance:
+
+.. list-table::
+   :widths: 30 70
+   :header-rows: 1
+
+   * - Property
+     - Description
+
+   * - ``collation()``
+     - | Specifies the kind of language collation to use when sorting
+         results. For more information, see :manual:`Collation </reference/collation/#std-label-collation>`
+         in the {+mdb-server+} manual.
+
+   * - ``hint()``
+     - | Specifies the index to use when matching documents.
+         For more information, see the :manual:`hint statement </reference/command/delete/#std-label-deletes-array-hint>`
+         in the {+mdb-server+} manual.
+
+   * - ``hintString()``
+     - | Specifies the index as a string to use when matching documents.
+         For more information, see the :manual:`hint statement </reference/command/delete/#std-label-deletes-array-hint>`
+         in the {+mdb-server+} manual.
+
+   * - ``let()``
+     - | Provides a map of parameter names and values to set top-level
+         variables for the operation. Values must be constant or closed
+         expressions that don't reference document fields. For more information,
+         see the :manual:`let statement
+         </reference/command/delete/#std-label-delete-let-syntax>` in the
+         {+mdb-server+} manual.
+
+   * - ``comment()``
+     - | Sets a comment to attach to the operation. For more
+         information, see the :manual:`delete command
+         fields </reference/command/delete/#command-fields>` guide in the
+         {+mdb-server+} manual for more information.
+
+The following code creates options and uses the ``comment()`` method to
+add a comment to the delete operation. Then, the example uses the
+``deleteMany()`` method to delete all documents in the ``restaurants``
+collection in which the value of the ``name`` field includes the string
+``"Red"``.
+
+.. literalinclude:: /includes/write/delete.kt
+   :start-after: start-delete-options
+   :end-before: end-delete-options
+   :language: kotlin
+   :copyable:
+   :dedent:
+
+.. tip::
+
+   If you use the the ``deleteOne()`` method in the preceding example
+   instead of the ``deleteMany()`` method, the driver deletes only the
+   first document that matches the query filter.
+
+Return Value
+~~~~~~~~~~~~
+
+The ``deleteOne()`` and ``deleteMany()`` methods each return a
+``DeleteResult`` instance. You can access the following information from
+a ``DeleteResult`` instance:
+
+- ``deletedCount``, which indicates the number of documents deleted
+- ``wasAcknowledged()``, which returns ``true`` if the server
+  acknowledges the result
+
+If the query filter does not match any documents, the driver doesn't delete any
+documents and the value of ``deletedCount`` is ``0``.
+
+.. note::
+
+   If the ``wasAcknowledged()`` method returns ``false``, trying to
+   access the ``deletedCount`` property results in an
+   ``InvalidOperation`` exception. The driver cannot 
+   determine these values if the server does not acknowledge the write
+   operation.
+
+API Documentation
+~~~~~~~~~~~~~~~~~
+
+To learn more about any of the methods or types discussed in this
+guide, see the following API Documentation:
+
+- `deleteOne() <{+api+}/mongodb-driver-kotlin-sync/com.mongodb.kotlin.client/-mongo-collection/delete-one.html>`__
+- `deleteMany() <{+api+}/mongodb-driver-kotlin-sync/com.mongodb.kotlin.client/-mongo-collection/delete-many.html>`__
+- `DeleteResult <{+core-api+}/com/mongodb/client/result/DeleteResult.html>`__
+
+.. .. _kotlin-sync-delete-instruqt-lab:
+
+.. .. instruqt:: /mongodb-docs/tracks/...
+..    :title: deleteMany() Lesson
+..    :drawer: