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Add locking of db for transaction operations #27

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nkorobkov opened this issue Dec 16, 2019 · 0 comments

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nkorobkov commented Dec 16, 2019

Now transaction logic does not block the row in DB. So double spendings and related issues may occur.

Need to implement pessimistic locking (like described in this blog post: https://hakibenita.com/how-to-manage-concurrency-in-django-models) With the use of related fields lock.

So that every transaction operation (process, substitute, decline) would block account while processing.

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