Hello,
Just a few thoughts on the scheduled transactions front: why not have the
transaction frequency specified as a function, so the scheduled transaction
would look something like this:
typedef int (*FreqFunc) (int);
struct ScheduledTransaction
{
int due_date;
FreqFunc freq_func;
int n_pmts; /* number of payments left (decrement each
time a scheduled
* transaction is entered, or -1 not to use
n_pmts)
* scheduled transaction stops when n_pmts
reaches 0.
*/
int end_date; /* date after which scheduled transaction
stops,
* or -1 to not use it
*/
/* if n_pmts and end_date are both -1,
scheduled transaction
* continues forever (or until stopped
manually)
*/
...
/* transaction details */
...
}
The FreqFunc would calculate the next due_date from the current due_date.
e.g.
int daily(int current_due_date)
{
return current_due_date + 1;
}
Every day (or every time gnucash runs), for each scheduled transaction a
check is made to see if today's date >= due_date, if so the transaction is
entered into the register (maybe asking the user for confirmation first) and
due_date and n_pmts are updated:
due_date = freq_func(due_date);
if (n_pmts > 0)
{
n_pmts--;
}
I think this would create a much more flexable system: a number of 'standard'
frequency functions can be defined (along the lines of Joshua's
FrequencyEnum), but there is then scope for a 'user defined' function(s)
(presumably written in scheme) so users can create the most complicated
scheduled transactions they can dream of!
I'm not familiar with the gnucash code, so I don't know how complicated this
would be to implement. However from a UI point of view, I think the
scheduled transactions should have a drop-down list of available frequency
functions, consisting of built-in functions & user defined scheme functions
(defined in a file(s) somewhere perhaps).
I know most users probably won't want to learn & write scheme functions, but
a library of functions could be built up & shared easily...
Any thoughts?
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