Cannot read property 'apply' of undefined\n at Buffer.MongooseBuffer.mixin.copy #7102
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@rajveerg can you provide more detailed code samples? Schemas, webpack config, etc. would be very helpful. |
vkarpov15
added
the
needs clarification
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I have (had) the same problem after upgrading from an ancient mongoose version to 5.3.4. |
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I was able to repro this with the following script on node 4.2.3 ( this works as expected on newer versions, e.g. node v4.9.1 and v10.11.0 ): 7102.js#!/usr/bin/env node
'use strict';
const co = require('co');
const assert = require('assert');
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const connection = mongoose.connection;
const DB = '7102';
const URI = `mongodb://localhost:27017/${DB}`;
const OPTS = { family: 4, useNewUrlParser: true };
mongoose.connect(URI, OPTS);
const schema = new Schema({
buf: Buffer
});
const Test = mongoose.model('test', schema);
const test = new Test({ buf: [1,2,3] });
function run() {
return co(function*() {
assert.strictEqual(process.version, 'v4.2.3');
assert.strictEqual(mongoose.version, '5.3.4');
yield connection.dropDatabase().catch(error);
yield test.save().catch(error);
console.log('All Assertions Pass.');
return connection.close().catch(error);
});
}
run();
function error(e) {
console.error(e.stack);
}Output: |
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Thanks @lineus for providing stuff to reproduce the issue. Issue is I have to stick to node 4.2.3 and also have to upgrade mongodb 3.6.x and compatible ODM mongoose ^5.0. Is there a fix to solve the issue. |
vkarpov15
removed
the
needs clarification
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Thanks @lineus , will fix this ASAP |
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Thanks @vkarpov15 for taking this on priority. |
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I have reactjs application running on nodejs_4.2.3 using MongoDB_3.0.12 and the ODM as mongoose_^4.3.1. Now I have fallen in to a case to upgrade to MongoDB_3.6.2 and the compatible ODM driver as mongoose_^5.0.0 on the same legacy node version.
Now if I try to persist a mongoose schema model I am getting the below error.
could someone point me in right direction to solve this issue. Help is appreciated
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