Javascript ISAPI web tier demo problem with dates

rbuser

Hi!

I have discussed about search dialog problem in IE (using Web tier ISAPI
demo). I got your "rsWebJavaScriptSearchValidation.pas" file and have
modified IsDate checking of date values (I use "dd.mm.yyyy" format). I saw
that "Date.parse" is not Ok in all situations and on that subject there are
many articles. So my modified function looks like:
function IsDate(aValue)
lsBody := '';
lsBody := lsBody + 'function IsDate(aValue)' + #13#10;
lsBody := lsBody + '{' + #13#10;
//mine
lsBody := lsBody + ' var re=
/^(3[01]|0[1-9]|[12]\d)\.(0[1-9]|1[012])\.\d{4}/;' + #13#10;
lsBody := lsBody + ' var lbPassed = (re.test(aValue) == true);' + #13#10;
//org
// lsBody := lsBody + ' var lbPassed = !isNaN(Date.parse(aValue));' +
#13#10;
// lsBody := lsBody + ' lbPassed = lbPassed && (aValue.indexOf(":")
== -1);' + #13#10;

lsBody := lsBody + ' lbPassed = lbPassed || (aValue == "");' + #13#10;
lsBody := lsBody + ' lsResult = "";' + #13#10;
lsBody := lsBody + ' if (!lbPassed)' + #13#10;
lsBody := lsBody + ' lsResult = aValue + " ' + ppLoadStr(56) + '";' +
#13#10; // 'is not a valid date.'
lsBody := lsBody + ' return lsResult;' + #13#10;
lsBody := lsBody + '}' + #13#10;

aFunctionList.AddFunctionIfNew('IsDate', lsBody);

Result := 'IsDate';

end;

Problem still persist in a way that search values (date) are not recognized
properly (they are checked correctly but latter not recognized in a good
way). Eventhought after new search (when report is shown with some or none
data), old search values are totally mad (31.12.1899 or something like that,
buit never understand corectly ... same to input values before).
What to do to make that work...

Regards,

Benjamin

nardmoseley

There is a second piece of JavaScript that converts the date entered by the
user into a standard format (CCYY-MM-DD) that will be processed by the
WebTier. I will send this unit to you.


--
Nard Moseley
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Hi!
But I've wonder could that be made as public property with some common date
formats...

Hope that with date time there will not be problems like that ....

THX!
Benjamin

nardmoseley

The intent of the architectuire is that the Javascript can be designed to
validate the user input and then convert the user input to a standard format
that is sent to the WebTier. The challenge is how to structure the
Javascript validation to allow a variety of formats.



--
Nard Moseley
Digital Metaphors
http://www.digital-metaphors.com

rbuser

First of all....all users shoud use the same date format.

Format checking is simple...Provide checking of regular expressions. Here is
example for dd.mm.yyyy format:

lsBody := lsBody + ' var re=
/^(3[01]|0[1-9]|[12]\d)\.(0[1-9]|1[012])\.\d{4}/;' + #13#10;

it is very easy to make other know combinations and to put in script
accordding some propertie.

for format dd/mm/yyyy, checking would be like:

lsBody := lsBody + ' var re=
/^(3[01]|0[1-9]|[12]\d)\/(0[1-9]|1[012])\/\d{4}/;' + #13#10;

Looks simple or I do not understand the problem.
Regrads,
Damir

nardmoseley

Sorry I think I misunderstood. You are requesting that a new property be
added to the WebTier to enable the developer to specify an allowable date
format. I can add this to our todo list for future enhancements. Thanks for
the suggestion....

For now, you will need to modify the Validation and Marshalling JavaScript
that I sent to you.

It would be nice if the JavaScript Date class handled this in a more
flexible manner - validating dates based upon the user locale.


--
Nard Moseley
Digital Metaphors Corporation
http://www.digital-metaphors.com