Question

Im new to mongo, I dont get it all. In mySQL I have something like this:

Schedule

|Hour | Saturday | Sunday | Monday

|13:00| Math |Spanish |Biology |Chemistry|

|14.00 | Subject |Subject |Subject| Subject|

How I can design it, but in a mongo way?

Thanks.

Answer 1

You would nest the days of the week inside a single document (a record) and inside of each of the days, you would have key value pairs of time : subject

{
    _id: "....",
    saturday: {
        13: "math",
        14: "history"
    },
    sunday: {
        15: "biology",
        16: "chemistry"
    }
}

This can be even more detailed if you want, such as including the name of the teacher:

{
    _id: "....",
    saturday: {
        13: { 
            subject: "math",
            teacher: "Mr. Smith"
        },
        14: { 
            subject: "history",
            teacher: "Mr. Jones"
        },
    },
    sunday: {
        15: { 
            subject: "biology",
            teacher: "Mr. Smith"
        },
        16: { 
            subject: "chemistry",
            teacher: "Mr. Jones"
        },
    }
}

As you can see, MongoDB encourages nesting of related data.