03-18-2022, 10:55 AM | #1 |
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Calculate difference on two dates
Hello,
Maybe someone can help me. I have a Read Start column and a Read End column. How can I create a read duration column that shows the days between the two dates? How can I create a read duration column that shows the days between the two dates? I need a column that depends on other columns, but then unfortunately I do not get more. I would be very glad about help. |
03-18-2022, 11:12 AM | #2 | |
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Quote:
You probably want a template like this, with the lookup names changed appropriately. Code:
program: days_between($$#read_end, $$#read_start) Code:
program: floor(days_between($$#read_end, $$#read_start)) Code:
program: round(days_between($$#read_end, $$#read_start)) |
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03-18-2022, 11:18 AM | #3 |
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Thanks, I'll look into it and get back to you if I can't get it to work.
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03-18-2022, 05:06 PM | #4 |
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I think I don't understand something.
I have copied in the templates and changed for me and have specified the template in the column. Shouldn't it actually work then? Please excuse my stupidity |
03-18-2022, 05:28 PM | #5 |
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Code:
program: Lesedaeur() |
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03-18-2022, 05:30 PM | #6 |
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03-18-2022, 05:43 PM | #7 |
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With some experimenting it worked now, thank you.
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03-18-2022, 06:12 PM | #8 |
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If it helps for the future, I've found most of my days_between() errors happened because I put the two dates in the wrong order.
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03-19-2022, 11:25 AM | #9 |
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Me again.
Is it perhaps also possible that the field is only populated when Read Begin and Read End are filled in? At the moment there is always a 0 entered. Thanks in advance for the effort. |
03-19-2022, 11:51 AM | #10 | |
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Quote:
Code:
program: if $$#date1 && $$#date2 then days_between($$#date1, $$#date2) fi Last edited by ownedbycats; 03-19-2022 at 02:01 PM. |
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03-20-2022, 02:27 PM | #11 |
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I have it configured like this
Taking the start and read ended column Code:
program: format_number(days_between(raw_field('#finished'), raw_field('#started')),"{0:5.0f}") |
03-20-2022, 03:18 PM | #12 |
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Thank you. Worked.
Slowly it becomes as desired. I also have books that I have read but have not set a date. Is it perhaps also possible to write an unknown for these in Read Start, Read End and read duration? Last edited by quarkpott; 03-20-2022 at 03:29 PM. |
03-20-2022, 03:31 PM | #13 |
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That would be the last one, sorry for all the questions.
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03-20-2022, 04:07 PM | #14 |
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Got it myself, thanks anyway for all the help here
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03-20-2022, 04:10 PM | #15 |
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They appear to me like this, like the image
The columns I have are: Status (Read, To Read, Reading) Title Author Date (From Calibre) Ranking Tags Serie Editorial Published Pages Started (Read start date) Finished (Date the reading finished) Days (Number of days to read it) |
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