Unresolved error in Java Script stored in db.system.js.save on mongoDB. Please help

[y oswald]

Please I am new to mongoDB and I want to perform a search with js stored in mongoDB. Below is the js code stored in mongoDB.

When I perform the following query:

 db.eval("dc(cough and asthma and cold)");

 I get the following error message:

 {

        "errmsg" : "exception: SyntaxError: Unexpected identifier",

        "code" : 16722,

        "ok" : 0

}

Please can someone fix the above error for me ? Thanks in advance.

// save script to mongoDB

db.system.js.save({

_id : "countAnd" ,

value : function(userQuery){

return userQuery.toLowerCase().split("and").length;

}

});

//save dc to mongoDB 

db.system.js.save({

_id : "dc",

value: function(userQuery){

var numOfAnds = countAnd(userQuery);

var uQuery = userQuery.toLowerCase().split("and",numOfAnds);

var dcResults ="";

for(var i=0; i<uQuery.length; i++){

var dcResults =db.records.find({diagnosis:uQuery[i]},{diagnosis:true});

 

}

return dcResults;

}

});

[Will Berkeley]

Don't use server-side javascript. You can do the manipulation of the query string in client code.

What are you trying to accomplish with this code, exactly?

-Will

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[y oswald]

Hi  Will,

I will like to pass a series of conjunctive queries to this function such that it removes the 'and' in the query and searches for the remaining literals in the database.

If is on the client side, then i will need to type this function whenever i want to pass these conjunctive queries to the function, so that's why i want to save it on the server.

[Will Berkeley]

I can see that that's what the code is doing - but what's the use case? Where are the conjunctions coming from? How will you use the results?

I don't understand quite what you mean when you say you'll have to type the function each time - what's your client environment? Just the mongo shell?

-Will

[oswald]

I am just using the mongo shell. I am practicing mogodb, by trying to implement an algorithm/operator(dropping condition). conjunctions will be imputed by the user by invoking the 'dc' js function stored on the server-side. there's no real result use case as of now, am just experimenting..

-Oswald