Get Started with MongoDB
Create or Modify Datetime properties using $currentDate in MongoDB
In this lesson, we learn that we can store datetime properties in MongoDB documents using the $currentDate operator.
We demonstrate how to create a new date property for a document, such as one for "Bob Johnson," by simply applying the operator.
We also show how to update multiple properties at once and set them as either Date or timestamp types.
By using $currentDate, we can easily manage and modify date-related information in our MongoDB documents, ensuring accurate time tracking.
[00:00] In order to store date time based properties in a MongoDB document, we have a couple of options. So first one is going to be to use the date constructor directly. So let's just choose a specific document. So this is Bob Johnson and what we're going to do here is simply to use the set operator and now create a new property that didn't exist before which is just going to apply a new date over the document. So let's just remove the setter and let's find the document.
[00:41] Now we can see that this is simply a new date. So there is another possibility if you wanted to update multiple properties, which could be slightly more convenient. So this is going to be currentDate. Now due to the fact that we are not inside set, which doesn't say what is the value going to be, Now we can just define that this is going to be the property that we want to update. So after running this one, we would see that the time is slightly changed, but still this is a date property.
[01:16] Now there is one more possibility. Instead of using a date object we can use a timestamp. So here we would need to again use a nested object and provide an operation which is that the type is going to be a timestamp. And that's simply it. So let's see what we've got here.
[01:38] This is a timestamp object.