Stephane Godbillon questions

Stephane Godbillon answers

• Scala generic implicit values ambiguous when overloading?
• MongoDB command line to show if a user exists (for puppet 'unless' clause)
• How to query with '$in' over '_id' in reactive mongo and play
• Play & Akka and blocking threads for database access
• What is `class A[_]` useful for?
• Performance gain by using bulk inserts vs regular inserts in MongoDB
• Using implicit objects within classes
• Mongodb inserting doc without _id field
• Searching string with special characters in MongoDB document