Commit

node_modules/mongodb/lib/operations/distinct.js

@@ -0,0 +1,61 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.DistinctOperation = void 0;
+const responses_1 = require("../cmap/wire_protocol/responses");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/**
+ * Return a list of distinct values for the given key across a collection.
+ * @internal
+ */
+class DistinctOperation extends command_1.CommandOperation {
+    /**
+     * Construct a Distinct operation.
+     *
+     * @param collection - Collection instance.
+     * @param key - Field of the document to find distinct values for.
+     * @param query - The query for filtering the set of documents to which we apply the distinct filter.
+     * @param options - Optional settings. See Collection.prototype.distinct for a list of options.
+     */
+    constructor(collection, key, query, options) {
+        super(collection, options);
+        this.SERVER_COMMAND_RESPONSE_TYPE = responses_1.MongoDBResponse;
+        this.options = options ?? {};
+        this.collection = collection;
+        this.key = key;
+        this.query = query;
+    }
+    get commandName() {
+        return 'distinct';
+    }
+    buildCommandDocument(_connection) {
+        const command = {
+            distinct: this.collection.collectionName,
+            key: this.key,
+            query: this.query
+        };
+        // we check for undefined specifically here to allow falsy values
+        // eslint-disable-next-line no-restricted-syntax
+        if (this.options.comment !== undefined) {
+            command.comment = this.options.comment;
+        }
+        if (this.options.hint != null) {
+            command.hint = this.options.hint;
+        }
+        return command;
+    }
+    handleOk(response) {
+        if (this.explain) {
+            return response.toObject(this.bsonOptions);
+        }
+        return response.toObject(this.bsonOptions).values;
+    }
+}
+exports.DistinctOperation = DistinctOperation;
+(0, operation_1.defineAspects)(DistinctOperation, [
+    operation_1.Aspect.READ_OPERATION,
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.EXPLAINABLE,
+    operation_1.Aspect.SUPPORTS_RAW_DATA
+]);
+//# sourceMappingURL=distinct.js.map