Relationship Fragility

[zamoore]

Hey all, I've been scratching my head about this for some time now.

I have the following action.

saveCampaign(campaign) {
        RSVP.all(get(campaign, 'players').map((player) => player.save()))
          .then(() => campaign.save().then(() => {
            this.notifications.success('The campaign was updated successfully!');
            this.transitionTo('campaign', campaign);
          }));
    }

Campaigns and players have a many-to-many relationship. My problem arises if one of the saves fails. IE, I update all of the player records fine, but my update on the campaign fails for some reason. At this point I'm left with garbage data.

Any thoughts?