mongodb

Mongoose rename collection

由 我们两清 提交于 2021-02-09 07:15:17
问题 I am trying to make db.collection.renameCollection with mongoose, but i can't find that function anywhere. Did they miss to add it or i am looking at wrong place? As quick example of what i am doing is: var conn = mongoose.createConnection('localhost',"dbname"); var Collection = conn.model(collectionName, Schema, collectionName); console.log(typeof Collection.renameCollection); Which show undefined. var con = mongoose.createConnection('localhost',"dbname"); con.once('open', function() {

Mongoose rename collection

由 送分小仙女□ 提交于 2021-02-09 07:13:44
问题 I am trying to make db.collection.renameCollection with mongoose, but i can't find that function anywhere. Did they miss to add it or i am looking at wrong place? As quick example of what i am doing is: var conn = mongoose.createConnection('localhost',"dbname"); var Collection = conn.model(collectionName, Schema, collectionName); console.log(typeof Collection.renameCollection); Which show undefined. var con = mongoose.createConnection('localhost',"dbname"); con.once('open', function() {

Nodejs mongodb dynamic collection name

由 浪尽此生 提交于 2021-02-09 07:13:12
问题 I have several mongodb collections, Fruits: [ {}, {}, {} ...], Bread: [{}, {}, {} ...] I want to use dynamic collection name in my server like // :collection will be "Fruits" or "Bread" app.get('/fetch/:collection', function (req, res){ [req.params.collection].find({}, function(err, docs){ res.json(docs) }) }) But as you know, [req.params.collection].find()... isn't working. How can I use dynamic collection name? 回答1: This is not working as the collection name you are passing is just a

Nodejs mongodb dynamic collection name

由 ∥☆過路亽．° 提交于 2021-02-09 07:10:35
问题 I have several mongodb collections, Fruits: [ {}, {}, {} ...], Bread: [{}, {}, {} ...] I want to use dynamic collection name in my server like // :collection will be "Fruits" or "Bread" app.get('/fetch/:collection', function (req, res){ [req.params.collection].find({}, function(err, docs){ res.json(docs) }) }) But as you know, [req.params.collection].find()... isn't working. How can I use dynamic collection name? 回答1: This is not working as the collection name you are passing is just a

Nodejs mongodb dynamic collection name

由 好久不见. 提交于 2021-02-09 07:09:22
问题 I have several mongodb collections, Fruits: [ {}, {}, {} ...], Bread: [{}, {}, {} ...] I want to use dynamic collection name in my server like // :collection will be "Fruits" or "Bread" app.get('/fetch/:collection', function (req, res){ [req.params.collection].find({}, function(err, docs){ res.json(docs) }) }) But as you know, [req.params.collection].find()... isn't working. How can I use dynamic collection name? 回答1: This is not working as the collection name you are passing is just a

Nodejs mongodb dynamic collection name

由 别说谁变了你拦得住时间么 提交于 2021-02-09 07:09:08
问题 I have several mongodb collections, Fruits: [ {}, {}, {} ...], Bread: [{}, {}, {} ...] I want to use dynamic collection name in my server like // :collection will be "Fruits" or "Bread" app.get('/fetch/:collection', function (req, res){ [req.params.collection].find({}, function(err, docs){ res.json(docs) }) }) But as you know, [req.params.collection].find()... isn't working. How can I use dynamic collection name? 回答1: This is not working as the collection name you are passing is just a

MongoDB RangeError: attempt to write outside buffer bounds

由 那年仲夏 提交于 2021-02-09 01:25:25
问题 I am not receiving this error all the time but for specifics arrays. I am trying to insert a JSON object into mongodb collection using node.js mongodb native driver. This JSON object has couple of string attributes and a big string array attribute. Array could have thousands of string items. My JSON looks like this { FileName :"504-2345.txt", SIMs :["8931440400012","893144040001","4000130360507",.........] } Any idea when MongoDB throws RangeError: attempt to write outside buffer bounds?

MongoDB RangeError: attempt to write outside buffer bounds

由 纵饮孤独 提交于 2021-02-09 01:25:08
问题 I am not receiving this error all the time but for specifics arrays. I am trying to insert a JSON object into mongodb collection using node.js mongodb native driver. This JSON object has couple of string attributes and a big string array attribute. Array could have thousands of string items. My JSON looks like this { FileName :"504-2345.txt", SIMs :["8931440400012","893144040001","4000130360507",.........] } Any idea when MongoDB throws RangeError: attempt to write outside buffer bounds?

我用 Python 爬了下知乎上的高颜值小姐姐

由 |▌冷眼眸甩不掉的悲伤 提交于 2021-02-08 21:00:17
国庆方阵中的军乐队小姐姐火了，看到朋友圈好多小伙伴说自己恋爱了。除了军乐队的小姐姐，知乎上也有很多漂亮小姐姐的照片。今天知乎上有一个热搜问题 “ 你见过的有些人能漂亮到什么程度？ ” 原问题在这儿 https://www.zhihu.com/question/266808424 我们用爬虫爬了下这个问题下的高赞照片。 在欣赏小姐姐的美照之前，我们先来分享一下思路。 首先通过浏览器的开发者工具，找到所有回答的链接。 知乎的回答都是ajax的方式加载的，一次加载一页。 我们可以通过知乎回答的url，先把回答一页一页的爬下来，存到本地数据库。 随后从数据库里读取数据，筛选出高赞的回答，把回答里的图片解析出来。 思路大致就是这样。 这里分享几个主要函数，完整代码可以在后台回复“ 知乎小姐姐 ”获取。 def get_answers_by_page ( page_no ) : offset = page_no * 10 url = "<answer url>&offset={}&limit=10&sort_by=default&platform=desktop" . format ( offset ) headers = { "User-Agent" : "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36

What is new way of setting DateTimeSerializationOptions.Defaults in mongodb c# driver?

由 一笑奈何 提交于 2021-02-08 15:50:53
问题 I was using this line to set the datetime defaults. DateTimeSerializationOptions.Defaults = DateTimeSerializationOptions.LocalInstance; I get this warning. 'MongoDB.Bson.Serialization.Options.DateTimeSerializationOptions.Defaults' is obsolete: 'Create and register a DateTimeSerializer with the desired options instead. ' But i couldn't find an example to change it... how can I change this obsolute usage? 回答1: Register the date/time serializer like this: BsonSerializer.RegisterSerializer(typeof
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