Mongoimport csv files with string _id and upsert

Question

I\'m trying to use mongoimport to upsert data with string values in _id. Since the ids look like integers (even though they\'re in quotes), mongoimport treats them as intege

Answer 1

Unfortunately there is not now a way to force number-like strings to be interpreted as strings:

https://jira.mongodb.org/browse/SERVER-3731

You could write a script in Python or some other language with which you're comfortable, along the lines of:

import csv, pymongo

connection = pymongo.Connection()
collection = connection.mydatabase.mycollection
reader = csv.DictReader(open('myfile.csv'))
for line in reader:
    print '_id', line['_id']
    upsert_fields = {
        '_id': line['_id'],
        'my_other_upsert_field': line['my_other_upsert_field']}

    collection.update(upsert_fields, line, upsert=True, safe=True)