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62 lines
2.0 KiB
62 lines
2.0 KiB
4 years ago
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'use strict';
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const OperationBase = require('./operation').OperationBase;
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const applyWriteConcern = require('../utils').applyWriteConcern;
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const checkCollectionName = require('../utils').checkCollectionName;
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const executeDbAdminCommand = require('./db_ops').executeDbAdminCommand;
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const handleCallback = require('../utils').handleCallback;
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const loadCollection = require('../dynamic_loaders').loadCollection;
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const toError = require('../utils').toError;
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class RenameOperation extends OperationBase {
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constructor(collection, newName, options) {
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super(options);
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this.collection = collection;
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this.newName = newName;
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}
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execute(callback) {
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const coll = this.collection;
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const newName = this.newName;
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const options = this.options;
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let Collection = loadCollection();
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// Check the collection name
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checkCollectionName(newName);
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// Build the command
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const renameCollection = coll.namespace;
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const toCollection = coll.s.namespace.withCollection(newName).toString();
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const dropTarget = typeof options.dropTarget === 'boolean' ? options.dropTarget : false;
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const cmd = { renameCollection: renameCollection, to: toCollection, dropTarget: dropTarget };
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// Decorate command with writeConcern if supported
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applyWriteConcern(cmd, { db: coll.s.db, collection: coll }, options);
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// Execute against admin
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executeDbAdminCommand(coll.s.db.admin().s.db, cmd, options, (err, doc) => {
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if (err) return handleCallback(callback, err, null);
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// We have an error
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if (doc.errmsg) return handleCallback(callback, toError(doc), null);
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try {
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return handleCallback(
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callback,
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null,
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new Collection(
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coll.s.db,
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coll.s.topology,
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coll.s.namespace.db,
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newName,
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coll.s.pkFactory,
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coll.s.options
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)
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);
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} catch (err) {
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return handleCallback(callback, toError(err), null);
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}
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});
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}
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}
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module.exports = RenameOperation;
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