Question

If I have several documents that use the following structure:

{ 
  "_id" : ObjectId("4f9c6fe033cddec1bea430f2"), 
  "title" : "Product #1",
  "comments" : 
  [
  {
    "comment" : "My comment",  
    "date" : "2012-03-01 00: 00: 00",   
    "name" : "Test Name",   
    "username" : "Test Username"
  },
  {
    "comment" : "My comment",  
    "date" : "2012-03-01 00: 00: 00",   
    "name" : "Test Name 2",   
    "username" : "Test Username 2"
  }
  ]
}

Is it possible for me to find all documents that have reviews.name and update it? For example say I want to find all documents with user.name : test name 2 and change it to Cassie. Is that possible? If not would it be better to put the comments in a different collection?

Answer 1

Yes it is possible. You would have to use comments.username to find it and then comments.$.username note that since you are posting to an array you have to tell mongo to go in there using the $ positional operator