Associations typically refer to relationships between models in ORMs such as ActiveRecord.
What is the difference between association, aggregation, and composition? Please explain in terms of implementation.
oop uml associations aggregation compositionWhat is the difference between Unidirectional and Bidirectional associations? Since the table generated in the db are all the same,…
java hibernate jpa orm associationsIn rails guides it's described like this: Objects will be in addition destroyed if they’re associated with :dependent => :…
ruby-on-rails ruby model associationsIn the Rails 3 docs, the build method for associations is described as being the same as the new method, but …
ruby-on-rails ruby-on-rails-3 associationsIn this example, I create a user with no profile, then later on create a profile for that user. I …
ruby-on-rails associations has-one database-relationsHow would you do a many-to-many association with MongoDB? For example; let's say you have a Users table and a …
many-to-many associations mongodbSo I have a create_table like this for Courses at a School: create_table :courses do |t| t.string :…
ruby-on-rails associations migrationThis follows this prior question, which was answered. I actually discovered I could remove a join from that query, so …
ruby-on-rails ruby activerecord join associationsI have the following entities: TEAM @Entity @Table public class Team { [..] private Set<UserTeamRole> userTeamRoles; /** * @return the userTeamRoles */ @…
database hibernate jpa associations one-to-manyI have a Customer_ratings model that allows users to leave feedback on each other. The web app is working …
ruby-on-rails-4 associations autoload rails-console