Comments (1)
Hello!
This is a good question, and I've dealt with a similar issue like this before, where we wanted some information usually stored in Domain B, but we wanted it regularly in Domain A.
Keep in mind that the Books/Authors example is probably a bad one for this case, because for a Human's perspective it makes sense to keep those models together.
Remember that a Domain should store information that is relevant to it, ideally within it's own Domain. Definitely if it is information you need a lot, such as the Author's name. So in your example I would see keep a copy of the Author's name in the models in the Book's Domain. This is duplicate information yes, and you'd need to keep the two Domains in sync, which is no different from the usual strategy we'd take if we had two distinct domains that needed to keep a shadow model in sync.
See this bounded context example where they are duplicating information at the boundaries of two domains, because it is cheaper to keep them in sync than to make more expensive cross-domain queries often.
from django-api-domains.
Related Issues (20)
- [FEEDBACK] Please, take a look at the dry-python project.
- [FEEDBACK] Further clarify the role of interfaces.py HOT 10
- [QUESTION] How to use serializers from other domains for nested relationships HOT 5
- [QUESTION] Can you provide an example using DRF?
- [FEEDBACK] Dry-Python HOT 3
- [FEEDBACK]Isn't this styleguide encouraging anemic domain models? HOT 2
- [QUESTION] What's the best way to handle errors between apps? HOT 3
- [QUESTION] Restrictions on data types that services may return. HOT 2
- [QUESTION] Model relationships between domains. HOT 3
- [FEEDBACK] Can cover your thoughts on value object? HOT 2
- [FEEDBACK] Clarify with DRF HOT 5
- [QUESTION] How do you handle models that are used in more than 1 domain/app? HOT 4
- [FEEDBACK] Thoughts on foreign key fetching? HOT 1
- [Question] Thoughts on where/how permissions are enforced? HOT 2
- [FEEDBACK] What about rich models? HOT 2
- What's next? HOT 9
- [FEEDBACK] - Domain Rules numbered list issue
- [FEEDBACK] Example needs more than one domain HOT 2
- [FEEDBACK] Change "All data returned from APIs must be JSON serializable." HOT 2
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