Syclo - Clearing/Unsetting Date fields

Hi All,
I'm having some trouble with clearing a date field. I need to have the option of setting a date field back to blank if the user request so.
I've tried to create a transaction where the date is a string property and set the date as blank. When running the application, clearing the date field results in the error message <Date> field is required and I'm not able to clear the field.
Thanks in advance for any hints on how to clear a date field.
Thanks!
Tags edited by: Michael Appleby

Jason,
You cannot really clear a date field on screen by design. There is a concept of a special value in Agentry that gives you more flexibility. You could experiment with a special value tied to your date screen field. This should put a check box next to the date and allow you to turn it on/off allowing you to finish the transaction without setting it. I don't believe this will unset a value that has been previously saved, so this may not work for you. I have noticed that date special values seem broken in the latest clients anyway.
You could add your own check box next to the date and enable/disable the date based on whether the check box is checked or not.
You are working with MyObject and have a data field called MyDate. Create a Date field in the MainObject called DummyDate. This is the equivalent of a blank date since there is no data in it. In your transaction, your final date field is called DateFinal and ties to MyDate in the object. Create another Date property called DateScreen. Point your screen field to DateScreen. DateScreen transaction property initial value should be "From another object". Set it to MyObject -> MyDate field. DateFinal transaction property initial value is "Rule after data entry". The rule should check whether your date check box is checked or not. If checked, use the transaction value from DateScreen since this is the date the user entered on screen. If not checked, use MainObject ->DummyDate. Using DummyDate will set the date back to empty.
Jason Latko - Senior Product Developer at SAP

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Oh, thanks for pointing this out.... I got caught up in trying to figure out
the date issues, I missed the obvious.
Brian
"Patrick Linskey" <[email protected]> wrote in message
news:[email protected]...
Brian,
The problem is that you're declaring myDate as a variable instead of a
parameter. Yes, we should be doing better error checking. But that's the
problem.
So, change your declareVariables() and declareParameters() statements
accordingly, and all should work out.
-Patrick
Brian Smith wrote:
Here is the driver code that I am attempting:
public void getDateRange ()
PersistenceManager pm = JDOFactory.getPersistenceManager ();
String filter = "leafDates.contains (cdate) & cdate.statusName ==
myStatus & cdate.datePhaseStarted > myDate";
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>>
calendar.set (2002, Calendar.DECEMBER, 26);
date=calendar.getTime();
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>>
query.declareVariables ("aqueduct.LeafDate cdate; Date myDate");
query.declareParameters ("String myStatus");
System.out.println ("dated used = " + date);
Collection results = (Collection) query.execute ("closed", date);
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System.out.println ("My leaf = " + myLeaf);
pm.close ();
>
Here is the class:
public class LeafDate implements Serializable
// *******The Attributes***************
private Date datePhaseStarted = null;
private boolean isEstimatedDate = false;
//mark this as non-persistent in the JDO metadata
private StatusType status = null;
//put here to enable one-to-many mapping using a single table in JDO
private LeafBase parent = null;
>
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C:\bcs\jdo\kodo-jdo-2.4.0\aqueduct>java aqueduct.DealMaint dated used
= Thu
Dec 26 08:47:33 CST 2002
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>
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[code=936;state=42000]
NestedThrowables:com.solarmetric.kodo.impl.jdbc.sql.SQLExceptionWrapper:
[SQL=SELECT DISTINCT t0.ID, t0.JDOCLASS, t0.IS_CONFLICT, t0.CURRENCYX,
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t0.PARENTX, t0.PRODUCTKIND, t0.T_SIZE, t0.STATUSNAME FROM JDO_DATE t1,JD
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>>
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>>
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at
oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:1819)
>>
at
oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java
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Patrick Linskey [email protected]
SolarMetric Inc. http://www.solarmetric.com

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Add a new date field

Hi,
I have a requirment to add a non existing field to my query
My actual query is like this..
select Date ,count(*) from tablename where date is between dt1 and dt2;
The output will be displayed for all the dates where some transactions are there..
eg:
Date                     Count
25.12.2005 12:02:00 PM          1
25.12.2005 12:16:00 PM          1
25.12.2005 12:20:00 PM          3
25.12.2005 12:51:00 PM          1
25.12.2005 12:52:00 PM          5
but the business wanted me to add an additional column which is a date field..
ie to display all the dates between dt1 and dt2 and the other 2 fileds from the query
if Dt1=25.12.2005 12:00:00 and Dt2=25.12.2005 12:59:00 then my output should look like this :
Column1                Date                    count
25.12.2005 12:00:00 PM
25.12.2005 12:01:00 PM
25.12.2005 12:02:00 PM     25.12.2005 12:02:00 PM          1
25.12.2005 12:03:00 PM
25.12.2005 12:04:00 PM
25.12.2005 12:05:00 PM
25.12.2005 12:06:00 PM
25.12.2005 12:07:00 PM
25.12.2005 12:08:00 PM
25.12.2005 12:09:00 PM
25.12.2005 12:10:00 PM
25.12.2005 12:11:00 PM
25.12.2005 12:12:00 PM
25.12.2005 12:13:00 PM
25.12.2005 12:14:00 PM
25.12.2005 12:15:00 PM
25.12.2005 12:16:00 PM     25.12.2005 12:16:00 PM          1
25.12.2005 12:17:00 PM
25.12.2005 12:18:00 PM
25.12.2005 12:19:00 PM
25.12.2005 12:20:00 PM     25.12.2005 12:20:00 PM          3
25.12.2005 12:21:00 PM
25.12.2005 12:22:00 PM
25.12.2005 12:23:00 PM
25.12.2005 12:24:00 PM
25.12.2005 12:25:00 PM
25.12.2005 12:26:00 PM     25.12.2005 12:26:00 PM          1
25.12.2005 12:27:00 PM
25.12.2005 12:28:00 PM
25.12.2005 12:29:00 PM
25.12.2005 12:30:00 PM
25.12.2005 12:31:00 PM
25.12.2005 12:32:00 PM
25.12.2005 12:33:00 PM
25.12.2005 12:34:00 PM
25.12.2005 12:35:00 PM
25.12.2005 12:36:00 PM
25.12.2005 12:37:00 PM
25.12.2005 12:38:00 PM
25.12.2005 12:39:00 PM
25.12.2005 12:40:00 PM
25.12.2005 12:41:00 PM
25.12.2005 12:42:00 PM
25.12.2005 12:43:00 PM
25.12.2005 12:44:00 PM
25.12.2005 12:45:00 PM
25.12.2005 12:46:00 PM
25.12.2005 12:47:00 PM
25.12.2005 12:48:00 PM
25.12.2005 12:49:00 PM
25.12.2005 12:50:00 PM
25.12.2005 12:51:00 PM
25.12.2005 12:52:00 PM     25.12.2005 12:52:00 PM          5
25.12.2005 12:53:00 PM
25.12.2005 12:54:00 PM
25.12.2005 12:55:00 PM
25.12.2005 12:56:00 PM
25.12.2005 12:57:00 PM
Thanks
Vamsi

You can do it with the SQL Model clause:
1 with t1 as
2 (select to_date('07/02/2007 12:02:00', 'DD/MM/YYYY HH24:MI:SS') mydate from dual UNION ALL
3   select to_date('07/02/2007 12:26:00', 'DD/MM/YYYY HH24:MI:SS') mydate from dual)
4 select newdate, mydate
5 from t1,
6      (select newdate
7       from dual
8       model
9       dimension by (to_number(null) as myid)
10       measures (to_date(null) as newdate)
11       rules upsert iterate(1000) until (&startdate+((iteration_number-1)*((1/24)/60)) >= &enddate)
12             (newdate[0]=to_date(&startdate),
13              newdate[iteration_number+1]=newdate[cv()-1]+((1/24)/60))) t2
14 where t1.mydate(+)=t2.newdate
15* order by newdate
SQL> /
Enter value for startdate: to_date('07/02/2007 12:00:00', 'DD/MM/YYYY HH24:MI:SS')
Enter value for enddate: to_date('07/02/2007 12:30:00', 'DD/MM/YYYY HH24:MI:SS')
NEWDATE              MYDATE
07-FEB-2007 12:00:00
07-FEB-2007 12:01:00
07-FEB-2007 12:02:00 07-FEB-2007 12:02:00
07-FEB-2007 12:03:00
07-FEB-2007 12:04:00
07-FEB-2007 12:05:00
07-FEB-2007 12:06:00
07-FEB-2007 12:07:00
07-FEB-2007 12:08:00
07-FEB-2007 12:09:00
07-FEB-2007 12:10:00
07-FEB-2007 12:11:00
07-FEB-2007 12:12:00
07-FEB-2007 12:13:00
07-FEB-2007 12:14:00
07-FEB-2007 12:15:00
07-FEB-2007 12:16:00
07-FEB-2007 12:17:00
07-FEB-2007 12:18:00
07-FEB-2007 12:19:00
07-FEB-2007 12:20:00
07-FEB-2007 12:21:00
07-FEB-2007 12:22:00
07-FEB-2007 12:23:00
07-FEB-2007 12:24:00
07-FEB-2007 12:25:00
07-FEB-2007 12:26:00 07-FEB-2007 12:26:00
07-FEB-2007 12:27:00
07-FEB-2007 12:28:00
07-FEB-2007 12:29:00
07-FEB-2007 12:30:00
07-FEB-2007 12:31:00
07-FEB-2007 12:32:00
34 rows selected.Have a look at the Oracle documentation to see exactly how this works, but basically my inner query:
select newdate
from dual
model
dimension by (to_number(null) as myid)
measures (to_date(null) as newdate)
rules upsert iterate(1000) until (&startdate+((iteration_number-1)*((1/24)/60)) >= &enddate)
      (newdate[0]=to_date(&startdate),
       newdate[iteration_number+1]=newdate[cv()-1]+((1/24)/60))is building a dummy table containing values 1 minute apart between startdate and enddate. You can then join to the original table. Not sure how clear that is so ask away if you're confused (but I would advise you go to the Oracle doc's first and search for info on the model clause).
Martyn

Date field difference calculation

Hi all,
I am new to Adobe and Java scripting so apologies if this has already been answered elsewhere - I have not been able to find it if it has.
I want to calculate the difference between two dates fields in hours and mins on a form.
I have two fields, both Date format (dd/mm/yyy HH:MM), a Start and End date and I want the difference between them in the Time format HH:MM.
Can anyone help me with the script for this? What I have so far is:
var strStart = this.getField("StartTime").value;
var strEnd = this.getField("EndTime").value;
if(strStart.length || strEnd.length)
var dateStart = util.scand("dd/mm/yyyy HH:MM",strStart);
var dateEnd = util.scand("dd/mm/yyyy HH:MM",strEnd);
var diff = dateEnd.getTime() - dateStart.getTime();
// One Day = (24 hours) x (60 minutes/hour) x
// (60 seconds/minute) x (1000 milliseconds/second)
var oneMin = 60 * 60 * 1000;
var mins = Math.floor(diff/oneMin);
event.value = util.printd("HH:MM",mins);
But this is not working...
Mary

The result can be formatted using:
// format result using "h:MM" format
event.value = util.printf("%,0 0.0f" + ":" + "%,002.0f", nHours, nMinutes);
One cannot use the date or time formats since the time values will be limited to the hours and minutes values for 1 day, so any time value that is over 23 hours 59 minutes is not possible.
A full script solution including document level functions for conversion of date strings to minutes and converting minutes to a time string:
// reusable document level functions;
function Time2Num(cFormat, cDate) {
// convert date value with format to number of minutes form Epoch date;
var oDate = util.scand(cFormat, cDate);
var nMins = null;
if(oDate == null) app.alert("Error converting " + cString + " using " + cForamt);
else nMins = oDate.getTime() / (1000 * 60);
return Math.floor(nMins);
} // end Time2Num format
function Num2Time(cFormat, nMins) {
// convert number of muniutes to h:MM or HH:MM format;
// return formatted string for valid formats;
// return null for invalid formats;
var cElapsed = null;
// test for nMins being a number;
if(isNaN(nMins)) {
app.alert("Minutes must be number",0, 0);
} else {
var nHours = Math.floor(nMins / 60);
var nMinutes = Math.floor(nMins % 60);
switch(cFormat) {
case "h:MM":
cElapsed = util.printf("%,0 0.0f" + ":" + "%,002.0f", nHours, nMinutes);
break;
case "HH:MM":
cElapsed = util.printf("%,002.0f" + ":" + "%,002.0f", nHours, nMinutes);
break;
default:
app.alert("Invalid format " + cFormat + "\nMust be \"HH:MM\" or \"h:MM", 0, 0);
break;
return cElapsed;
} // end Num2Time function
// end document level funcitons;
// custom calculation script;
event.value = ''; // clear result;
var strStart = this.getField("StartTime").value;
var strEnd = this.getField("EndTime").value;
if(strStart.length || strEnd.length) {
var nDateStart = Time2Num("dd/mm/yyyy HH:MM",strStart);
var nDateEnd = Time2Num("dd/mm/yyyy HH:MM",strEnd);
var nMins = nDateEnd - nDateStart;
// format result using "h:MM" format
event.value = Num2Time("h:MM", nMins);
// end custom calculation script;

Syclo - Clearing/Unsetting Date fields

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