The second chapter of our book will focus on schema design for schema-less databases such as MongoDB. This may sound counterintuitive; in fact there are considerations that we should take into account when developing for MongoDB.

The main points of this chapter are:

• Schema considerations for NoSQL
• Data types supported by MongoDB
• Comparison between different data types
• How to model our data for atomic operations
• Modeling relationships between collections:
  • One to one
  • One to many
  • Many to many
• How to prepare data for text searches in MongoDB
• Ruby:
  • How to connect using the Ruby mongo driver
  • How to connect using Ruby's most widely used ODM, Mongoid
  • Mongoid model inheritance management
• Python:
  • How to connect using the Python mongo driver
  • How to connect using Python's ODM, PyMODM
  • PyMODM model inheritance management
• PHP:
  • Sample code using annotations-driven code
  • How to connect using the MongoDB PHP driver
  • How to connect using PHP's ODM, Doctrine
  • Model inheritance management using Doctrine