Match with multiple conditions in $OR - regex

Question

In MongoDB I have 2 conditions
First condition:
"\"userfullname\":{$regex : \"" + filtertext + "\", $options: 'i'}";
Second condition:
"\"email\":{$regex : \"" + filtertext + "\", $options: 'i'}";
I need to OR condition on this statement so what I did is:
matchquery = matchquery + "\"userfullname\":{$regex : \"" + filtertext + "\", $options: 'i'}"+["%OR:"]+"\"email\":{$regex : \"" + filtertext + "\", $options: 'i'}";
but of course that did not work. How can I achieve this?

Answer 1

Use the Or Operator & create it like this :
var condition1 =
"\"userfullname\":{$regex : \"" + filtertext + "\", $options: 'i'}";
var condition2 = "\"email\":{$regex : \"" + filtertext + "\", $options: 'i'}";
var matchquery = "{ \"$or\" : [ " + condition1 + "," + condition2 +" ]}"

Answer 2

Use the $or operator. You essentially want to create a query which has the form
var matchquery = {
'$or': [
{ 'userfullname': { '$regex': \filtertext\, '$options': 'i' } },
{ 'email': { '$regex': \filtertext\, '$options': 'i' } }
]
}
If filtertext is a variable then you can use RegExp constructor which creates a regular expression object for matching text with a pattern. For example:
var filtertext = "foo";
var rgx = new RegExp(filtertext, "i");
var matchquery = {
"$or": [
{ "userfullname": rgx },
{ "email": rgx }
]
};
To stringify the query, you could try:
var filtertext = "foo";
var rgx = new RegExp(filtertext, "i");
var matchquery = '{ "$or":[{ "userfullname": {"$regex": '+ rgx.toString() +'} },{ "email":{ "$regex": '+ rgx.toString() + '} }] } }';