PeopleCode | Loop through and process a series of records in a rowset.
A. Everyday Rowsets
A common programming requirement asks that you loop through a list of records in a rowset. For current purposes, the rowset could be a grid or a scroll area on a page, or it could be data that you’ve loaded directly into memory for further processing.
Below is a simple block of code to carry out this requirement for a standalone rowset. This code consists of three parts: (a) declare variables, (b) define the standalone rowset, and (c) loop through each record in the rowset.
/* Variable Declarations */
Local integer &i;
Local Record &disabilityRec;
Local Rowset &disabilityRS;
/* Define the Rowset */
&disabilityRS = CreateRowset(Record.DISABILITY);
&disabilityRS.Fill("where EMPLID = '123456'");
/* Loop through each record in the rowset */
for &i = 1 to &disabilityRS.ActiveRowCount
&disabilityRec = &disabilityRS.GetRow(&i).DISABILITY;
/* PERFORM FURTHER PROCESSING HERE */
end-for;
Here is a slightly modified version of the above code to handle a rowset already located on the page (this code assumes the rowset is located at ‘Level 1’).
/* Variable Declarations */ Local integer &i; Local Record &disabilityRec; Local Rowset &disabilityRS; /* Define the Rowset */ &disabilityRS = GetLevel0().GetRow(1).GetRowset(Scroll.DISABILITY); /* Loop through each record in the rowset */ for &i = 1 to &disabilityRS.ActiveRowCount &disabilityRec = &disabilityRS.GetRow(&i).DISABILITY; /* PERFORM FURTHER PROCESSING HERE */ end-for;
In the second example, note the use of ‘GetRowset’ and ‘Scroll’ to define a variable based on a rowset already loaded on the page (or to use the correct lingo, already loaded into the ‘component buffer’).