1
vote
2answers
223 views

Need advice on design in Ruby On Rails

For personal educational purposes I am making a site for a conference. One of the object that exist in a conference is a session, which has different states and in each state it has slightly different ...
1
vote
1answer
196 views

Should an object update itself?

I'm working on Ruby on Rails. There is a feature in our app where doctors can "claim" cases for themselves. I can either have the doctor perform the action and update the plate, or I can have the ...
7
votes
4answers
636 views

Rails: Law of Demeter Confusion

I am reading a book called Rails AntiPatterns and they talk about using delegation to to avoid breaking the Law of Demeter. Here is their prime example: They believe that calling something like this ...
0
votes
0answers
19 views

Rails: The Law of Demeter [duplicate]

I am reading a book called Rails AntiPatterns and they talk about using delegation to to avoid breaking the Law of Demeter. Here is their prime example: They believe that calling something like this ...
2
votes
1answer
293 views

Rails: Useful example of delegate and Law of Demeter

I am currently learning about delegate and the Law of Demeter. I understand the Law of Demeter, but I can't seem to find a good example of where using delegate to avoid breaking the law would actually ...
27
votes
2answers
4k views

Does the ActiveRecord pattern follow/encourage the SOLID design principles?

I'm interested in whether ActiveRecord pattern, made famous from Ruby on Rails, encourages or discourages the use of SOLID design principles. For example, it seems to me that ActiveRecord objects ...