MongoMatcher

Run mongo selector on an arbitrary javascript object to see if it is matched!

USAGE

First, import MongoMatcher using the require command. MongoMatcher has a dependency on LoDash

var mongoMatcher = require('./mongoMatcher.js');

Now, you can instantiate a matcher for a given MongoDB selector object, like so:

var mySelector = {$and:[{foo:"bar"},{wham:"bam"}]}
var myMatcher = new mongoMatcher(mySelector);

After you do this, you can see if a Javascript object would be matched by the MongoDB selector using the discern function

var willMatch = {foo:"bar",wham:"bam"}
var wontMatch = {foo:"baz",wham:"bam"}

myMatcher.discern(willMatch)	//true
myMatcher.discern(wontMatch)	//false

And that's it!

LIMITATIONS

Currently, MongoMatcher is meant only for MongoDB selectors (not modifiers) and does not support all keywords. Hopefully all the keywords will be supported in the future: feel free to contribute them!

Unsupported operators are:

• $type
• $regex
• $where
• $text
• $geoIntersects
• $geoWithin
• $nearSphere
• $near
• $
• $elemMatch
• $meta
• $slice