Ruby on Rails
Deserializing an object failed in ActiveRecord
This can happen when the rails dependency system doesn’t load the serialize referenced objects before deserialize happens. We killed some time figuring this out – here is what you can do if you see any such issue:
For example:
The following code could create deserialization errors when Employee object is loaded.
class Employee < ActiveRecord::Base
serialize :job_roles
[...]
Ruby on Rails: Serializing and DeSerializing Ruby objects
Serialization in Ruby comes very handy at times, it really helps in several cases especially when dealing with:
persisting Ruby objects onto a disk or to the database
transferring the Ruby objects over the network
session persistence
complex data structure storing in the database with ActiveRecord
and lot more …
The Object Serialization can be done in Ruby in two [...]
How to use REDIS with Rails?
Redis (REmote DIctionary Server) is a key-value database written in C. It is similar to memcached but the dataset is not volatile, and values can be strings, exactly like in memcached, but also lists, sets, and ordered sets. All this data types can be manipulated with atomic operations to push/pop elements, add/remove elements, perform server [...]
Background Job Processing in Rails
Running jobs in background is part of every non-trivial web application for either speeding up user response, or running periodically scheduled tasks. Here, I explain various tools available to do the backgound jobs in rails.
Here are the few listing of the available Rails Background Job tools.
* Delayed Job (DJ) [...]
