I'm confused about best practices to update certain documents in node, for example, I don't know if I should update multiple fields through req.body (which would make everything easier for me): //course is the document and Course is the model util.updateDocument(course, Course, req.body...
Model.distinct(field, [conditions], [callback])//去重Model.findOne(conditions, [fields], [options], [callback])//查找一条记录Model.findOneAndRemove(conditions, [options], [callback])//查找一条记录并删除Model.findOneAndUpdate([conditions], [update], [options], [callback])//查找一条记录并...
ThevalidationActionoption allows us to determine what happens if a query fails validation. By default, it is set toerror, but we can change it towarnif we want the insert to still occur. Now instead of an insert or update erroring out, it would simply warn the user that the operation ...
db.foo.dropIndexes() 删除所有索引 db.foo.ensureIndex(keypattern,options) - options should be an object with these possible fields: name, unique, dropDups 增加索引 db.foo.find( [query] , [fields]) - first parameter is an optional query filter. second parameter is optional set of fields to ...
update第一个参数是查询条件,第二个参数是更新的对象,但不能更新主键,这就是为什么要删除主键的原因。 当然这样的更新很麻烦,可以使用$set属性来配置,这样也不用先查询,如果更新的数据比较少,可用性还是很好的: PersonModel.update({_id:_id},{$set:{name:'MDragon'}},function(err){}); ...
('counter', CounterSchema); var entitySchema = mongoose.Schema({ testvalue: {type: String} }); entitySchema.pre('save', function(next) { var doc = this; counter.findByIdAndUpdate({_id: 'entityId'}, {$inc: { seq: 1} }, function(error, counter) { if(error) return next(error);...
$set[`vehicle.${key}`] = updateDescription.updatedFields[key];return$set; }, {});// Execute the update. Note that this is just a proof of concept and// we don't handle errors here, if you want to do this in prod make// sure you add some error handling.Customer.updateMany({'ve...
theleanoption on afindif you want the document to be authenticated and decrypted.findOne,findById, etc..., as well assaveandcreatealso all work as normal.updatewill work fine on unencrypted and unauthenticated fields, but will not work correctly if encrypted or authenticated fields are involved....
Updatea document Deletea document Complete OpenApi documentation Convert a DTO (public object) to/from Mongo Entity (internal object) Fine control on what is available (CRUD, fields, sorting) Multiple input and output format (built-in: Json:api, HAL, JSON+LD and JSON) ...
sort: if multiple docs are found by the match condition, sets the sort order to choose which doc to updatequery.findOneAndUpdate() query.findOneAndUpdate(updateDocument) query.findOneAndUpdate(match, updateDocument) query.findOneAndUpdate(match, updateDocument, options) // the following all execut...