mongodb add or update document fields only if they don't exist
db.foo.update({'field': {$exists : false}}, {$set: {'field': ''}})
// for multiple update do this
db.foo.update({'field': {$exists : false}}, {$set: {'field': ''}}, false, true)mongodb add or update document fields only if they don't exist
db.foo.update({'field': {$exists : false}}, {$set: {'field': ''}})
// for multiple update do this
db.foo.update({'field': {$exists : false}}, {$set: {'field': ''}}, false, true)mongodb find by id and update doesnt work
Did you add it to monsoose schema?Copyright © 2021 Codeinu
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