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A comment on To protect kids, don’t send report cards home on Fridays. Parent comment

Re:To protect kids, don’t send report cards home on Fridays by kijin on Sunday January 13, 2019 @09:06AM (#18896713)
101 would be a relatively safe number to use as a placeholder. Since these people aren't programmers, trying to use NULL or NaN or -1 will probably backfire.
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Re:To protect kids, don’t send report cards home on Fridays by sethammons on Sunday January 13, 2019 @09:35AM (#18896804)
Sentry values are a nope. Have the assignment have a is_published check box / flag. An option to select all as published and the ability to toggle/select individual's assignments as published.
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Re:To protect kids, don’t send report cards home on Fridays by hnuser355 on Monday January 14, 2019 @08:41AM (#18902828)
No, there could be extra credit
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