title: Switching from SQl to MongoDB in Rails 3
body: <p>I am considering switching a quite big application (Rails 3.0.10) from our SQL database (SQLite and Postgres) to MongoDB. I plan to put everything in it, mainly utf-8 string, binary file and user data. (Maybe also a little full text search) I have complex relationships (web structure: categories, tags, translations..., polymorphic also) and I feel that MongoDB philosophy is to avoid that and to put everything in big document, am I right ?</p>
  
  <p>Does anyone have experience with MongoDB in Rails ? Particularly switching a app from ActiveRecord to Mongoid ? Do you think it's a good idea ? Do you know a guide/article to learn the MongoDB way to organize complex data ?</p>
  
  <p>ps : In MongoDB, I particularly like the freedom offers by its architecture and its performance orientation. It's my main personal motivations to consider the switch.</p>