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Old 11-02-2015, 09:43 PM   #1
truth1ness
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How do I clear a date field?
I have a column for read-date and once in a while I accidentally set edit focus on the field (like if I'm tabbing to a field in another column) and it automatically fills in today's date. When I go delete it the date just comes back after I exit editing the field. The only way I can get rid of it is to delete the book and then re-add it.
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Old 11-02-2015, 09:47 PM   #2
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Right click->Set date to undefined

or press the minus key
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Old 11-02-2015, 09:58 PM   #3
truth1ness
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Ah, thanks!

Is there any reason deleting this type of field acts differently than the others?
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Old 11-04-2015, 09:16 PM   #4
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Quote:
Originally Posted by truth1ness View Post
Is there any reason deleting this type of field acts differently than the others?
@truth1ness - IIRC: it's because dates are numbers, most columns are strings. Integer and floats are also cleared with '-'.

BR
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Old 11-04-2015, 09:33 PM   #5
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Originally Posted by BetterRed View Post
@truth1ness - IIRC: it's because dates are numbers, most columns are strings. Integer and floats are also cleared with '-'.

BR
Dates are really timestamps, a special DB type that is processed for the display you see. In addition, Calibre includes a Calendar tool as part of the field display

IIRC 1/1/101 is a special date that the process will nil out the timestamp
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