Collections of components

Rails
1

Has ActiveRecord a macro style method for mapping collections of value
objects? something like composed_of (used for one value object) but for
a collection of value object.

A second question:

Does ActiveRecord use .eql? to check instances for modifications?

Thank you

___Vogon

2

On Feb 22, 4:23pm, Vogon P. [email protected] wrote:

Has ActiveRecord a macro style method for mapping collections of value
objects? something like composed_of (used for one value object) but for
a collection of value object.

A second question:

Does ActiveRecord use .eql? to check instances for modifications?

No. equality in activerecord means equality of primary key.

Fred

3

Frederick C. wrote in post #983171:

On Feb 22, 4:23pm, Vogon P. [email protected] wrote:

Has ActiveRecord a macro style method for mapping collections of value
objects? something like composed_of (used for one value object) but for
a collection of value object.

A second question:

Does ActiveRecord use .eql? to check instances for modifications?

No. equality in activerecord means equality of primary key.

Fred

Thank you Fred, any ideas for mapping collections of components without
losing the meaning of this kind of association?