[Koha-devel] To Chris : Problem on Loan Period calculation

[Stephen Hedges]

Chris' solution still won't give you an accurate issue date, since he
presumes that people renew items on the date_due -- and we all know that
borrowers are not that dependable (damn!).  Adding the issue_date to the
issues table seems to be the only way to get an accurate statistic.

I'm curious, Henri-Damien -- are you trying to do a daily statistics
report?  Is that why you need the issue date?

Stephen

Henri-Damien LAURENT said:
> Hi,
> We are trying to design a stat report module for Koha here in France
> with Paul.
> And we have a problem on issues stats reporting.
>
> In issues table, timestamp is modified as soon as the table is touched
> and returndate stores the date of return.
> The issue date is never stored in this table anywhere else.
>
> Nevertheless, it is stored in statistics. And returns are also stored
> there.
>
> But then, there is no way to know how they are related to one another. A
> selection on itemnumber and borrower card will tell us it was issued and
> return, but not Which returns answers Which issue.
> Suppose One borrows an item more than once and we are lost.
>
> If one has a convenient code to know the average Loan period, that is a
> way to calculate the average time between issue and return date of an
> item for a borrower, we would be grateful.
>
> Many Thanks
>
> --
> Henri-Damien LAURENT

-- 
Stephen Hedges
Skemotah Solutions, USA
www.skemotah.com  --  shedges at skemotah.com