How to specify to NOT map an object Property in MongoDB with NORM

Question

I have a calculated property in my object that I don't want to save to the DB, is there a way I can specify that?

Like this one as an exemple :

public virtual string FullInfos { get { var html = Contact1Info; html += Contact2Info; return html; } }

Where Contact1Info and Contact2Info are automatic property already saved...

Thanks!

Gates VP · Accepted Answer · 2010-06-21 20:56:34Z

3

NoRM provides a series of attributes. In this case you're looking for the [MongoIgnore] attribute.

Should be as simple as

[MongoIgnore] public virtual string FullInfos { get { var html = Contact1Info; html += Contact2Info; return html; } }

answered Jun 21, 2010 at 20:56

Gates VP

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2 Comments

VinnyG Over a year ago

Thanks, do you know if there is any documentation about NoRM? I was looking on the net but did'nt found anything.

Gates VP Over a year ago

NoRM code is here, but I'm sure you know that: github.com/atheken/NoRM The Google Group is here: groups.google.com/group/norm-mongodb NoRM is still a small-scale project, so I strongly suspect that you'll do best on the mailing list and taking a look at some of the code.

Zaid Masud · Accepted Answer · 2011-08-30 17:15:36Z

Convert it to a method, in which case NORM won't map it.

These kinds of "Properties" are better defined as methods anyways.. in the strict OO sense it shouldn't be viewed as a "Property" of the object if it is being calculated.

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