We recently looked at mongoDB a bit. I was discussing using mongoDB with active record but was told that maybe there are other or better options. Can someone comment on that ?
Also, someone suggested storing a ruby array directly inside of a record where I would have opted for the array to be a separate set of records in active record using has_many and belongs_to … It seemed to me that how I search on those child records would be a big factor but I soon realized I need to find out what are the options. Do people store arrays and hashes directly in mongo DB fields or is that not the best way to go ?
We recently looked at mongoDB a bit. I was discussing using mongoDB with active record but was told that maybe there are other or better options. Can someone comment on that ?
ActiveRecord is pretty hardwired to SQL databases. Mongoid and mongomapper are 2 ORMs that wrap mongodb documents with an ActiveModel compliant interface
Also, someone suggested storing a ruby array directly inside of a record where I would have opted for the array to be a separate set of records in active record using has_many and belongs_to … It seemed to me that how I search on those child records would be a big factor but I soon realized I need to find out what are the options. Do people store arrays and hashes directly in mongo DB fields or is that not the best way to go ?
It’s certainly a compelling feature. There are pros and cons. It depends largely on how you use/access the data. For example with data in separate records, its difficult to update a parent and child without race conditions, since while individual document updates are atomic there are no transactions. Equally very large documents can be unwieldy
