I’m having some difficulty deciding where to put logic that crosses

models.

For example, given models people, departments, work schedules, and

weeks.

Where would the following best fit:

who is scheduled to work in a given department in a given week?

how many hours is a given person scheduled in a given week?

how many hours is a given person scheduled in a department in given

week?

how many hours total are scheduled in a week?

The first three could possibly go in department or person, but doesn’t

feel exactly right. Especially because I have a lot of these type

problems and filling Person with methods like

num_hours_scheduled_by_department_and_week( department, week ) seems

rather messy.

The last doesn’t seem to fit in any existing model.

I guess the question boils down to where do you represent data that is

the intersection or composite of multiple models?

Thanks.

–

Jack C.

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