Please read your error messages more carefully. You have an autowiring problem: NoSuchBeanDefinitionException: No qualifying bean of type **’com.mthree.service.UserService’** available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} You should add an annotation to tell…
Dump the database in windows Copy the files to linux Restore the database See solved I want to move whole mongo databse to linux [closed]
Aggregation Pipeline: A pipeline of predefined operators Some operators ($match, $project) can be executed in parallel when sharding is used very fast you can iterate over the output or use the $out operator to store it into a collection easy…
This page is useful for translate SQL to mongo querys 0 solved MongoDB first time user setup [closed]
So to answer your questions regarding operators like << or ||= []: << appends an element to an array (or appends strings), in the case above it’s used to append the comment object to either the results array or or…
In MongoDB replication, the primary node writes events to the oplog that describe the writes as they occur. Secondary nodes copy apply these events and replay them so that the data on the secondary is logically the same as that…
Try this: db.collection.aggregate([ {$unwind: “$carrier”}, {$sort: {“carrier.name”: 1}}, {$group: {_id: “$_id”, carrier: {$push: “$carrier”}}} ]) Mongo Playground solved How to sort 1000000 elements array in alphanumeric in mongodb
The second option is a real lack of security. It means that you will send to your users your mongodb login/password or even worse give them a non secured mongodb url. To you really want that your user can see…
I slightly changed the input data into a form which would make more sense technically speaking. In addition I removed the ResultId() since this seems to be a special datatype which needs to be converted into a string separately before…
You should be able to cast DBObject to one of it’s implementation (see all implementations here : ), in this case BasicDBList, which extends ArrayList , so you can use all methods from arrayList there. Mongo mongo = new Mongo(“localhost”,…
Use the aggregation framework with following aggregation pipeline (Mongo shell implementation): db.ledger.aggregate([ { “$unwind”: “$Accounts” }, { “$project”: { “Total_Credits” : “$Accounts.Total_Credits”, “Total_Debits” : “$Accounts.Total_Debits”, “month_year” : { “$substr”: [ “$Accounts.Date”, 3, -1 ] } } }, { “$group”: {…
Considering item.sku is of a String Type, you can fire your distinct query like this: BasicDBObject filter = new BasicDBObject(); filter.put( “dept”, “A” ); MongoCursor<String> c = db.getCollection(“inventory”).distinct(“item.sku”, filter, String.class).iterator(); Hope this helps. solved How to represent distinct query of…
Hey just remove attr_accessor :password from model. It works class User include Mongoid::Document attr_accessor :password//remove this line field :name, type: String field :category, type: String field :email, type: String field :password, type: String validates :name, presence: true ,format: { with:…
For Mongoid I use ‘any_of’. This should work: Member.any_of({:name => x, :age => 42}) Also here’s a link to some other queries you can use with mongoid. I don’t see these in their main doc page: 0 solved How…
try { $connection = new Mongo(); $database = $connection->selectDB(‘lib’); $collection = $database->selectCollection(‘autor’); } catch(MongoConnectionException $e) { die(“Failed to connect to database “.$e->getMessage()); } 1 solved Parse error: syntax error, unexpected ‘}’ in C:\xampp\htdocs\lib\autors.php on line 8 [closed]