mongodb update multiple records from command line

Question

i have this code

var new_styles = ["XEP02" ,"XEP65" ,"XEPB01" ,"XEPB03" ,"XN06" ,"XN14" ,"XN73"];

for( var i = 0; i < new_styles.length; i++ ) {
    var style_name = [i];
    var full_length = "/assets/full_length/low_res/" + style_name + ".jpg";
    var cropped =  "/assets/cropped/low_res/" + style_name + ".jpg";
    db.styles.update({"_id": style_name},  {"$push" : {"images.full_lenght": full_length, "images.cropped": cropped }});
}

when i run it on the mongo console, it does not seem to work, where as

db.styles.update({"_id": "XEP02"},  {"$push" : {"images.full_lenght": "/assets/full_length/low_res/XEP02.jpg", "images.cropped": "/assets/cropped/low_res/XEP02.jpg"}});

works

what am i missing?

style_name = [i] what are you trying to do with that?

Explosion Pills
– Explosion Pills

2015-11-23 16:13:54 +00:00
Commented Nov 23, 2015 at 16:13 — Explosion Pills
– Explosion Pills, Commented Nov 23, 2015 at 16:13

Alex · Accepted Answer · 2015-11-23 16:15:08Z

1

There is a bug in your for loop, it currently queries for "_id":0,"_id":1,etc. You need to change var style_name = [i] to this:

 var style_name = new_styles[i];

answered Nov 23, 2015 at 16:15

Alex

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