User.remove(wherestr, function(err, res){ if (err) { console.log("Error:" + err); } else { console.log("Res:" + res); } }) } del(); 结果就不贴了,res中会返回是否成功以及影响的行数:{"ok":1,"n":1} 其它常用方法还有: Model.findByIdAndRemove(id, [options], [callback]) M...
blogModel.remove({author:"L"},function(err, docs){if(err)console.log(err);console.log('删除成功:'+ docs); }) 删除“author”值为“L”的记录。 Model.findByIdAndRemove(id, [options], [callback]) id:指定_id的值;update:需要修改的数据;options控制选项;callback回调函数。 options有以下选项:...
Model.findByIdAndRemove(id, [options], [callback]) Model.findOneAndRemove(conditions, [options], [callback]) 条件查询 已先插入一些测试数据 。。 Model.find(conditions, [fields], [options], [callback]) var User = require("./user.js"); function getByConditions(){ var w...
Model.findByIdAndRemove(id, [options], [callback]) Model.findOneAndRemove(conditions, [options], [callback]) 条件查询 已先插入一些测试数据 。。 Model.find(conditions, [fields], [options], [callback]) 代码语言:javascript 复制 varUser=require("./user.js");functiongetByConditions(){varwheres...
RemovedrawResultoption forfindOneAndUpdate() TherawResultoption forfindOneAndUpdate(),findOneAndReplace(), andfindOneAndDelete()has been replaced by theincludeResultMetadataoption. constfilter = {name:'Will Riker'};constupdate = {age:29};constres =awaitCharacter.findOneAndUpdate(filter, update, {...
Model.findByIdAndRemove(id, [options], [callback]) Model.findOneAndRemove(conditions, [options], [callback]) 条件查询 已先插入一些测试数据 。。 Model.find(conditions, [fields], [options], [callback]) varUser=require("./user.js");functiongetByConditions(){varwherestr={'username':'Tracy ...
remove() 函数是用来删除集合中的数据在执行 remove() 函数前先执行 find() 命令来判断执行的条件是否正确,这是一个比较好的习惯。db.col_name.remove( <query>, { justOne: <boolean>, writeConcern: <document> } ) - query :(可选)删除的文档的条件。 - justOne : (可选)如果设为 true 或 1,则...
// specify the transform schema option schema.options.toObject.transform = function (doc, ret, options) { // remove the _id of every document before returning the result delete ret._id; } // without the transformation in the schema doc.toObject(); // { _id: 'anId', name: 'Wreck-...
Delete One Document Using model.findByIdAndRemove Delete one person by the person's _id. You should use one of the methods findByIdAndRemove() or findOneAndRemove(). They are like the previous update methods. They pass the removed document to the DB. As usual, use the function argument pe...
{ deleted: false, name: 'Fluffy' }varidUser=mongoose.Types.ObjectId("53da93b16b4a6670076b16bf");// note: you should invoke exactly delete() method instead of standard fluffy.remove()fluffy.delete(idUser,function(){// mongodb: { deleted: true, name: 'Fluffy', deletedBy: ObjectId("5...