First commit

node_modules/mongodb/lib/operations/find.js

@@ -0,0 +1,149 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.FindOperation = void 0;
+const error_1 = require("../error");
+const read_concern_1 = require("../read_concern");
+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(collection, ns, filter = {}, options = {}) {
+        super(collection, options);
+        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;
+    }
+    execute(server, session, callback) {
+        this.server = server;
+        const options = this.options;
+        let findCommand = makeFindCommand(this.ns, this.filter, options);
+        if (this.explain) {
+            findCommand = (0, utils_1.decorateWithExplain)(findCommand, this.explain);
+        }
+        server.command(this.ns, findCommand, {
+            ...this.options,
+            ...this.bsonOptions,
+            documentsReturnedIn: 'firstBatch',
+            session
+        }, callback);
+    }
+}
+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) {
+            if (options.limit &&
+                options.limit !== 0 &&
+                Math.abs(options.batchSize) < Math.abs(options.limit)) {
+                findCommand.limit = -options.batchSize;
+            }
+            findCommand.singleBatch = true;
+        }
+        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 (typeof options.maxTimeMS === 'number') {
+        findCommand.maxTimeMS = options.maxTimeMS;
+    }
+    const readConcern = read_concern_1.ReadConcern.fromOptions(options);
+    if (readConcern) {
+        findCommand.readConcern = readConcern.toJSON();
+    }
+    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 (options.collation) {
+        findCommand.collation = options.collation;
+    }
+    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
+]);
+//# sourceMappingURL=find.js.map