What is the correct association for this problem? There are three models: Residents Parties Addresses Each Resident and Party has an Address
I try to learn the has_and_belongs_to_many relationship between my 2 fresh new and simple models Product and Author, where a Product can have many authors and where author can have a lots of products.
Book has_and_belongs_to_many Students Student has_and_belongs_to_many Books In BooksStudents model I want to add \"status\" field to store if it is rented,开发者_JAVA百科 bought ..etc. and be able to
I have models Person and Phone/Email with HABTM relationship. After some pain I found out, that my life is easier, when I break HABTM into: Person hasMany PeoplePhone, Phone hasMany PeoplePhone, Peopl
In my app, the administrator of a company defines a set of attributes to be associated with a location (for example, market size and geographical location).They also define which values are acceptable
**UPDATE: I found this: \"Active Record expects intermediate join tables to be named with a concatenation of the tables it joins, in alphabetical order.\"
Hi I am new to rails and I would like to know what is the best way who save dependent objects in an HBTM relation.
I have 2 main entities, UserProfile and Property.Basically, the UserProfile needs to maintain 3 different lists of Properties (note, each list type will have additional properties)
When using a join-table [:left_id, 开发者_开发百科:right_id] in Rails, what indices should it have?
I am currently making a database for a rails application. This schema involves three models: Photo, Object and Tag. Both photos and objects need to be \"taggable\".
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