Commit

node_modules/mongodb/lib/operations/find.js

@@ -0,0 +1,148 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.FindOperation = void 0;
+const responses_1 = require("../cmap/wire_protocol/responses");
+const error_1 = require("../error");
+const sort_1 = require("../sort");
+const utils_1 = require("../utils");
+const command_1 = require("./command");
+const operation_1 = require("./operation");
+/** @internal */
+class FindOperation extends command_1.CommandOperation {
+    constructor(ns, filter = {}, options = {}) {
+        super(undefined, options);
+        this.SERVER_COMMAND_RESPONSE_TYPE = responses_1.CursorResponse;
+        this.options = { ...options };
+        delete this.options.writeConcern;
+        this.ns = ns;
+        if (typeof filter !== 'object' || Array.isArray(filter)) {
+            throw new error_1.MongoInvalidArgumentError('Query filter must be a plain object or ObjectId');
+        }
+        // special case passing in an ObjectId as a filter
+        this.filter = filter != null && filter._bsontype === 'ObjectId' ? { _id: filter } : filter;
+        this.SERVER_COMMAND_RESPONSE_TYPE = this.explain ? responses_1.ExplainedCursorResponse : responses_1.CursorResponse;
+    }
+    get commandName() {
+        return 'find';
+    }
+    buildOptions(timeoutContext) {
+        return {
+            ...this.options,
+            ...this.bsonOptions,
+            documentsReturnedIn: 'firstBatch',
+            session: this.session,
+            timeoutContext
+        };
+    }
+    handleOk(response) {
+        return response;
+    }
+    buildCommandDocument() {
+        return makeFindCommand(this.ns, this.filter, this.options);
+    }
+}
+exports.FindOperation = FindOperation;
+function makeFindCommand(ns, filter, options) {
+    const findCommand = {
+        find: ns.collection,
+        filter
+    };
+    if (options.sort) {
+        findCommand.sort = (0, sort_1.formatSort)(options.sort);
+    }
+    if (options.projection) {
+        let projection = options.projection;
+        if (projection && Array.isArray(projection)) {
+            projection = projection.length
+                ? projection.reduce((result, field) => {
+                    result[field] = 1;
+                    return result;
+                }, {})
+                : { _id: 1 };
+        }
+        findCommand.projection = projection;
+    }
+    if (options.hint) {
+        findCommand.hint = (0, utils_1.normalizeHintField)(options.hint);
+    }
+    if (typeof options.skip === 'number') {
+        findCommand.skip = options.skip;
+    }
+    if (typeof options.limit === 'number') {
+        if (options.limit < 0) {
+            findCommand.limit = -options.limit;
+            findCommand.singleBatch = true;
+        }
+        else {
+            findCommand.limit = options.limit;
+        }
+    }
+    if (typeof options.batchSize === 'number') {
+        if (options.batchSize < 0) {
+            findCommand.limit = -options.batchSize;
+        }
+        else {
+            if (options.batchSize === options.limit) {
+                // Spec dictates that if these are equal the batchSize should be one more than the
+                // limit to avoid leaving the cursor open.
+                findCommand.batchSize = options.batchSize + 1;
+            }
+            else {
+                findCommand.batchSize = options.batchSize;
+            }
+        }
+    }
+    if (typeof options.singleBatch === 'boolean') {
+        findCommand.singleBatch = options.singleBatch;
+    }
+    // we check for undefined specifically here to allow falsy values
+    // eslint-disable-next-line no-restricted-syntax
+    if (options.comment !== undefined) {
+        findCommand.comment = options.comment;
+    }
+    if (options.max) {
+        findCommand.max = options.max;
+    }
+    if (options.min) {
+        findCommand.min = options.min;
+    }
+    if (typeof options.returnKey === 'boolean') {
+        findCommand.returnKey = options.returnKey;
+    }
+    if (typeof options.showRecordId === 'boolean') {
+        findCommand.showRecordId = options.showRecordId;
+    }
+    if (typeof options.tailable === 'boolean') {
+        findCommand.tailable = options.tailable;
+    }
+    if (typeof options.oplogReplay === 'boolean') {
+        findCommand.oplogReplay = options.oplogReplay;
+    }
+    if (typeof options.timeout === 'boolean') {
+        findCommand.noCursorTimeout = !options.timeout;
+    }
+    else if (typeof options.noCursorTimeout === 'boolean') {
+        findCommand.noCursorTimeout = options.noCursorTimeout;
+    }
+    if (typeof options.awaitData === 'boolean') {
+        findCommand.awaitData = options.awaitData;
+    }
+    if (typeof options.allowPartialResults === 'boolean') {
+        findCommand.allowPartialResults = options.allowPartialResults;
+    }
+    if (typeof options.allowDiskUse === 'boolean') {
+        findCommand.allowDiskUse = options.allowDiskUse;
+    }
+    if (options.let) {
+        findCommand.let = options.let;
+    }
+    return findCommand;
+}
+(0, operation_1.defineAspects)(FindOperation, [
+    operation_1.Aspect.READ_OPERATION,
+    operation_1.Aspect.RETRYABLE,
+    operation_1.Aspect.EXPLAINABLE,
+    operation_1.Aspect.CURSOR_CREATING,
+    operation_1.Aspect.SUPPORTS_RAW_DATA
+]);
+//# sourceMappingURL=find.js.map