Help needed creating export file from a file layout with Application Engine

Question

The following is what I would like to do:
- Read a record from a PS view
- Manipulate the data as needed
- Write the fields out to a file as defined by a File Layout
- Repeat until no more records are found
I have created the PeopleSoft Application Engine action listed below. It receives an error "BCUNIT is not a property of class File".
Local Record &rec1;
Local File &myFile;
Local SQL &sQL1;
/* Create instance of Record */
&rec1 = CreateRecord(Record.W9M_MBSCRSE_VW);
/* Instantiate the Output File */
&myFile = GetFile("c:\temp\help_me.txt";, "A", %FilePath_Absolute);
If &myFile.IsOpen Then
If &myFile.SetFileLayout(FileLayout.TACOURIN) Then
/* Create SQL object to populate rowset */
&sQL1 = CreateSQL("%Selectall(:1) Where INSTITUTION = :2", &rec1, W9M_MBSCRSE_AET.INSTITUTION);
/* Cycle through the records */
While &sQL1.Fetch(&rec1)
/* I know this section is not coded correctly but I'm not sure how to fix it */
&myFile.BCUNIT = "1";
&myFile.BCTCD = &rec.W9M_MBS_TERM_CODE;
&myFile.BCTYR = &rec.W9M_MBS_TERM_YEAR;
&myFile.BCDPTN = &rec.ACAD_GROUP;
&myFile.BCCOUR = substring(&rec.CATALOG_NBR,2,5);
&myFile.BCSEC = &rec.CLASS_SECTION;
&myFile.WriteRecord();
End-While;
Else
/* Process FileLayout Error here */
End-If;
Else
/* Process File Open Error here */
End-If;
&myFile.Close();
There are probably a lot of things wrong with this approach and if you could provide some guidance and/or  corrections to the above logic I would greatly appreciate it.
Another approach?
After doing a bunch of reading on Application Engine maybe my approach is incorrect. Perhaps I should be doing something like the following:
- Read a record from a PS view
- Populate a temporary table manipulating data as it is inserted (Temp table is named according to the file layout fields?)
- Fetch the records from the temp table and write the record to the file layout.
- Repeat until no more records are found
Is this approach better and designed correctly? If not, could you recommend how it should be done? Would the population and reading of the Temp table be done in separate actions or within the same action? Do you know of an Application Engine program that can be used as an example with "like" processing?
As you can probably tell I haven't used Application Engine before and my goal is to start out on the right path. Thank you for any direction and input that you can provide.
Steve

Answer 1

I did and my initial logic was based upon them. I don't see where it shows how to manipulate the data before writing it to the file layout fields. Maybe you can send me a link to that section?
I was hoping that I would be able to reference the file layout fields directly to allow for manipulating the field values. Re-reading the file layout section and the application engine PeopleBooks I believe I need to create a temporary record which matches the file layout fields; i.e., the second alternative that I listed. Then, make my updates to the temp record fields as I load them. Then, load them to the file layout as a row.
I'm not sure how this would break down in Application Engine; would the insert into the temp table and the writerecord be different steps/actions, etc.