CODEWITHSUNDEEP
mongodbangularangular-meteor
Tymur Valiiev
Tymur Valiiev

Reputation: 729

How to get last inserted record in Meteor mongo?

I want to get last inserted item in minimongo. currently i'm doing it in this way (code on client side):

addBook()
  {
    BookCollection.insert(
      this.book , ( err , insertedBook_id )=>
      {
        this.book_saved = true;
        console.group('Output:')
        console.log(err);
        console.log( insertedBook_id );
        console.log(
          BookCollection.find({_id: insertedBook_id})
            .fetch()
        );
        console.groupEnd();
        //this.router.navigate(['/book', insertedBook_id]);
      }
    );
  }

Output in console:

undefined
t6Lwrv4od854tE7st
[]

As you can see, when i redirect to newly created page, i cant find a book, but in mongo shell i clearly see that record was added. Should i wait for some event like BookCollection.insert(this.book).then( . . . )? Please help me!)

When i go back to the 'all books page', i see new record and can click, all works normal, no errors.

In the /book controller:

 ngOnInit()
  {
    this.sub = this.curr_route.params.subscribe(
      params=>
      {
        this.book = BookCollection.findOne( params[ '_id' ] ); // .fetch() == []

        //if(!this.book)
        //    this.router.navigate(['/books']);

        Meteor.subscribe(
          'book' , params[ '_id' ] , ()=>
          {
            this.book = BookCollection.findOne( params[ '_id' ] );
          } , true
        )

        console.groupCollapsed( 'BookDetailsCardComponent log data:' )
        console.group( 'Book:' );
        console.log( this.book );
        console.groupEnd();
        console.groupEnd();

      } , true
    );

  }

Upvotes: 0

Views: 260

Answers (1)

NFab
NFab

Reputation: 426

This is probably a timing issue. The _id is most likely created and returned immediately while the actual data is inserted into the database, which would explain why doing a find() on that _id right away comes back as an empty array.

Is there a reason you are doing your insert from the client rather than doing it on the server and using a Meteor method to initiate it? Changing to this approach might resolve your issue.

Upvotes: 1

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