Isn't the problem just that bank_acount_id is ambiguous?
Model::findOrFail returns a model object not a query builder object. You can pass the columns you wa...
With your first attempt you are eager loading the subscribers and unsubscribers relationships, which...
2 things that will help: Save memory by loading the csv file one row at a time instead of loading...
I couldn't find a way to specify a custom type either. I hacked around it by just using a raw sql &q...
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