How to avoid GETRANGEMIN run-time error

Eugene · 2006-05-31

is there a way to avoid GETRANGEMIN generating run-time error ?
i would like to check if a filter is a range N..M and then use N if it is and otherwise do some other processing

Marije_Brummel · 2006-05-31

What error do you get?

I do not remember this funtion to give a runtime error unless

FROM HELP
The field you want to find the minimum value for. The current filter on Field can only be a single range filter, otherwise a run-time error occurs.

David_Cox · 2006-05-31

Try this test for Value
IF GETFILTER("Date Filter") <> '' THEN
fromDate := GETRANGEMIN("Date Filter");

If you need a filter to be input
IF GETFILTER("Date Filter") = '' THEN
ERROR('Message');

Thomas_Hviid_Thorn · 2006-05-31

Hej David,

as far as I know, there is no way of avoiding an error there ](*,)

Having

setfilter("Date Filter",'..%1',310306d);
message('%1',getrangemin("Date Filter"));

you get the message

The filter '..31-03-06' on the Date Filter field ... should specify a minimum value.

including the lecture on setting filters.

Of couse you may use the GETVIEW, and analyse if there is a rangemin Date Filter ...

Marije_Brummel · 2006-05-31

Yes, that is what the helpfile says. You'll have to evaluate the filter in order to see if it is valid for GETRANGEMIN.

David_Cox · 2006-05-31

Thomas Hviid Thorn wrote:
Hej David,

as far as I know, there is no way of avoiding an error there ](*,)

Having
setfilter("Date Filter",'..%1',310306d);
message('%1',getrangemin("Date Filter"));
you get the message

The filter '..31-03-06' on the Date Filter field ... should specify a minimum value.

including the lecture on setting filters.

Of couse you may use the GETVIEW, and analyse if there is a rangemin Date Filter ...

Hi Thomas

IF GETFILTER("Date Filter") <> '' THEN;

I use this to aviod the error message as it returns a TRUE or FALSE, so you can then GETRANGEMIN, conditionally as in examples below.

// If the user has put in a filter then fill myDate
IF GETFILTER("Date Filter") <> '' THEN
myDate := GETRANGEMIN("Date Filter")
ELSE
MyDate := WORKDATE;

// If the user has not put in a filter then tell them
IF GETFILTER("Location Filter") = '' THEN
ERROR('You must specify a Location filter');

Thomas_Hviid_Thorn · 2006-05-31

Hej David and Eugene

- first of all - my reply should have been to Eugene, who posted the question - sorry for that to both of you.

I changed my sample, and I do still get an error: Please let my known if you can make it right!

setfilter("Date Filter",'..%1',310306d); 
if getfilter("Date filter") <> '' then
  mydate := getrangemin("Date Filter");
message('%1',format(mydate));

the line mydate := getrangemin("Date Filter"); issues the error.

I tried a year ago in 3.60 and today in 4.00 SP1 (both W1).

David_Cox · 2006-05-31

Oh right you have no min date, as ..02/02/06, returns a Null 0D.

In this case you do have a Filter and the only date returnable is the GETRANGEMAX;

So you can test this

// To String Value
IF (GETFITER("Date Filter") <> '')
AND(COPYSTR(GETFITER("Date Filter"),1,2)<> '..')THEN
MyDateStr := FORMAT(GETRANGEMIN("Date Filter"))
ELSE
MyDateStr := GETFITER("Date Filter");

// To Date Value have to hard code the Min
IF (GETFITER("Date Filter") <> '')
AND(COPYSTR(GETFITER("Date Filter"),1,2)<> '..')THEN
MyDate := GETRANGEMIN("Date Filter")
ELSE
MyDate := 01012000D;

pdj · 2006-05-31

I see two solutions:
1) Use the IF CODEUNIT.RUN THEN trick, that hides any errors, but it makes a COMMIT or ROLLBACK, so never use it in a transaction.
2) Make your own function that sets the filter on the virtual Date table, and then returns the first and last date. However; this only solves it for the Date datatype.

Albertvh · 2006-06-01

you could also try something like this

IF STRPOS(GETFILTER("Posting Date",'..')) = 1 THEN
you know that you don't have a minimum range
ELSE
IF STRPOS(GETFILTER("Posting Date",'..')) > 1 THEN
you know you have both minimum and maximum ranges

Hope this helps

pdj · 2006-06-01

I think you should be careful with the solutions suggested by David Cox and Albertvh. Datefilters can be made in a lot of ways that makes GETRANGEMIN/MAX fail. I.e. = "0D|01-01-01..02-02-02" and ">01-01-01".
I think it will be close to impossible to de-code all possible situations.

David_Cox · 2006-06-01

pdj wrote:

I think you should be careful with the solutions suggested by David Cox and Albertvh. Datefilters can be made in a lot of ways that makes GETRANGEMIN/MAX fail. I.e. = "0D|01-01-01..02-02-02" and ">01-01-01".
I think it will be close to impossible to de-code all possible situations.

Ok you have a valid point, and it might happen once in a 1000 runs, but this does not help the original poster.
So what you can do is use Albertvh solution for the likely scenarios.
Note: you can get range Min and Max for other data types as well.

If it is a Date you could just cast the string into your variable or check the length.
IF STRLEN("Date Filter")<> 18 THEN
ERROR('Please Enter a date range like 01/01/06..01/31/06');

IF NOT EVALUATE(fromDate,COPYSTR(GETFILTER("Date Filter"),1,8 ))THEN
ERROR('Please Enter a date range like 01/01/06..01/31/06');

Both will work for a Date Filter

pdj · 2006-06-01

David Cox wrote:

Ok you have a valid point, and it might happen once in a 1000 runs, but this does not help the original poster.

I read the original post again and have to agree.
My answer was to the question I imagined was behind the written question: "How do I get the first and last date in any datefilte?" 8)

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