I was creating a PeopleCode script to populate test persons in my database. I needed the persons to have IDs that would be padded with 0s where necessary. For example:
|
1 2 3 4 5 6 7 8 9 10 |
JM001 JM002 JM003 .. JM050 JM051 JM052 .. JM099 JM100 |
Solution:
1. Determine how many people you are creating (eg. 100).
2. Find the number of digits of that number (eg. 100 has 3 digits)
3. Subtract that from the number of the person that you’re currently trying to create an id for (eg. 50 has 2 digits, so 3 – 2 = 1). This will give you the number of zeroes you’ll need to left pad for the id.
4. Encapsulate this number in the PeopleCode Rept function to pad the 0s:
[sourcecode language=”peoplecode”]
Local number &maxIDsToCreate = 100;
Local number ¤tIDNumber = 50;
Local string ¤tID = "JM" | Rept("0", (Len(String(&maxIDsToCreate)) – Len(String(¤tIDNumber)))) | ¤tIDNumber;
[/sourcecode]
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Or you could just do it yourself once the string is returned simply cast it to the datatype you want:
/* SET THESE UP IN SEPARATE CLASSES UNDER ONE APP PACKAGE.*/
/* LPAD FUNCTION TO LEFT PAD AN EXISTING STRING TO A SPECIFIED LENGTH */
class Cad_Lpad
method Cad_Lpad();
method lpad(&lSTRING As string, &lLENGTH As number, &lCHAR As string) Returns any;
end-class;
method Cad_Lpad
end-method;
method lpad
/+ &lSTRING as String, +/
/+ &lLENGTH as Number, +/
/+ &lCHAR as String +/
/+ Returns Any +/
Local number &lLEN, &lL;
&lLEN = Len(&lSTRING);
For &lL = &lLEN To (&lLENGTH – 1)
&lSTRING = &lCHAR | &lSTRING;
End-For;
Return &lSTRING;
end-method;
/* RPAD FUNCTION TO RIGHT PAD AN EXISTING STRING TO A SPECIFIED LENGTH */
class Cad_Rpad
method Cad_Rpad();
method rpad(&rSTRING As string, &rLENGTH As number, &rCHAR As string) Returns any;
end-class;
method Cad_Rpad
end-method;
method rpad
/+ &rSTRING as String, +/
/+ &rLENGTH as Number, +/
/+ &rCHAR as String +/
/+ Returns Any +/
Local number &rLEN, &rL;
&rLEN = Len(&rSTRING);
For &rL = &rLEN To (&rLENGTH – 1)
&rSTRING = &rSTRING | &rCHAR;
End-For;
Return &rSTRING;
end-method;