Re: Model Design, Nesting by Year

Why not have separate models for Event and Season and then use an intermediate table to capture the M2M between event occurrences and Person.

On Thu, Apr 24, 2014 at 12:43 AM, Christopher Grande <chrisgrande@mac.com> wrote:

I'm in the process of designing an internal system and I'm having trouble designing the model so that it will function as I need it.

The basic idea is that everything is "Season" based, where a season is a year (2014, 2015, etc)

From the there we have Events and the the Seasons they are functioning in, (Event 1 (2014, 2015, etc) , Event 2 (2014, 2015, etc))

Then there are people who may be active any given year for a specific Event:

Bob Smith, 2014, Event 1 & Event 2

                  2015, Event 2

                  2016, Event 1

I have created a Season & Event Models:

class EventSeason(models.Model):

    season = models.IntegerField(max_length=4, primary_key=True)

class Event(models.Model):

    attraction = models.CharField(max_length=30, null=True, blank=False)

    seasons = models.ManyToManyField(EventSeason)

I have created the base person model and all the other fields for them (Address, etc) but I'm not sire how I to tie them to the seasons and events so that each season and event pair is maintained going forward. So for example I could historically lookup people from Event 1, 2014, for example. 

Hope this makes sense, thank you for any help,

Chris

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