IBMi (AS400) fans only : Minimalist Subfile with filter fields

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#IBMiSample

First of all please refer to this post to compile and populate the necessary files for this example.

Then, compile the following sources: OT08SF.DSPF for the display file and OT08SF.SQLRPGLE for the RPGLE program.

Display File: OT08SFV.DSPF

                                            CHGINPDFT(CS UL HI)
                                            INDARA
                                            CA03(03 'F3=EXIT')
                                            REF(OTORD00F)
      *--------------------------------------------------------------
                R SFL1                      SFL
      *--------------------------------------------------------------
                  S1OPT          1A  B  6  2
                  S1ANN0    R             +3REFFLD(OTANN0)
                  S1COR0    R            + 1REFFLD(OTCOR0) EDTCDE(Z)
                  S1NOM0    R            + 1REFFLD(CLANA/CLNOM0 CLANA00F)
      *--------------------------------------------------------------
                R FMT01                     SFLCTL(SFL1)
      *--------------------------------------------------------------
                                            SFLPAG(0015)
                                            SFLSIZ(&NBRRECS)
                                            OVERLAY
             N50                            SFLDSP SFLDSPCTL
              50                            SFLCLR
              91                            SFLEND(*MORE)
                                            RTNCSRLOC(&PM_RCD &PM_FLD)
                  PM_RCD        10A  H
                  PM_FLD        10A  H
                  SF1NUM         4S 0H
                  NBRRECS        5S 0P
                                        1 26'SUBFILE WITH FILTERS EXAMPLE'
                  F1ANN0    R        B  4  6REFFLD(OTANN0)
                  F1COR0    R        B   + 1REFFLD(OTCOR0) EDTCDE(Z)
                  F1NOM0    R        B   + 1REFFLD(CLANA/CLNOM0 CLANA00F)
                                         + 1'<--FILTERS'

                                        5  2'OPT'
                                          +1'A'
                                          +1'ORD.NMB'
                                          +1'CUSTOMER NAME'
      *--------------------------------------------------------------
                R S1CMD
      *--------------------------------------------------------------
                  S1MSG         78A    23  2
                                       24  2'F3=EXIT'



RPGLE Program: OT08SF.SQLRPGLE

**FREE
ctl-opt option(*nodebugio:*srcstmt:*nounref) dftactgrp(*no);

dcl-f OT08SFV workstn indds(Dspf) sfile(SFL1 : SF1NUM);

// constant
dcl-c MaxSFLrec 9999 ;

dcl-s ReLoadSFL ind inz(*on) ;

// alfanumeric filter fields
dcl-s F1ANN0lke varchar(35) inz('%') ;
dcl-s F1ANN0prv varchar(35) inz(*blanks);
dcl-s F1NOM0lke varchar(35) inz('%') ;
dcl-s F1NOM0prv varchar(35) inz(*blanks);

// numeric filter fields
dcl-s F1COR0str zoned(07) inz(*zeros);
dcl-s F1COR0end zoned(07) inz(*hival);
dcl-s F1COR0prv zoned(09) inz(*zeros);


dcl-ds Dspf qualified ;
  Exit ind pos(03) inz(*off);
  DoForF6 ind pos(06) inz(*off);
  SflClr ind pos(50) inz(*off);
  SflEnd ind pos(91) inz(*off);
end-ds ;

dcl-ds RecordDs;
  OTANN0 char(1);
  OTCOR0 zoned(7);
  CLNOM0 char(50);
end-ds;

// Both "exec sql" is not executed but needed at compile time.
// It must be placed just after the last "dcl" declaration.
// LANGIDSHR defines the sort sequence as a "shared-weight sort table",
// upper/lower insensitive, special characters are treated
// "à" as "A"
// "é" as "E" and so on.
exec sql set option Commit = *None;
exec sql set option SRTSEQ = *LANGIDSHR;
// preapre the data recordset
exec sql declare C1 cursor for
select OTORD00F.OTANN0,
       OTORD00F.OTCOR0,
       CLANA00F.CLNOM0
from OTORD00F
inner join CLANA00F on OTCCL0 = CLCCL0
where OTANN0 like :F1ANN0lke
and OTCOR0 between :F1COR0str and :F1COR0end
and CLNOM0 like :F1NOM0lke
order by OTCOR0
for read only;
//***************************************************************
// Start working...
//***************************************************************
ReLoadSFL = *on;
dow Dspf.Exit = *off;
  if ReLoadSFL;
    LoadSFL();
  endif;
  write S1CMD;
  exfmt FMT01;
  select;
  when Dspf.Exit; // F3=Exit
    leave;
  when Dspf.DoForF6; // F6=do something
  // call a program or a subroutine
  other; // Read user options
    dow 1 = 1;
      readc SFL1;
      if Not %eof;
        if S1OPT = '1';
        // call a program or a subroutine
        endif;
        if S1OPT = '2';
        // call a program or a subroutine
        endif;
        S1OPT = '>';
        update SFL1;
        S1OPT = ' ';
      else;
        leave;
      endif;
    enddo;
  endsl;
  SetFilters();
enddo;
exec sql close C1;
*inlr = *on;
//**************************************************************
// Load subfile  //**************************************************************
dcl-proc LoadSFL;
  ReLoadSFL = *off;
  // Clear subfile
  Dspf.SflClr = *on;
  write FMT01;
  Dspf.SflClr = *off;
  // Load SFL
  SF1NUM = *zero;
  exec sql close C1;
  exec sql open C1;
  // Read recordset
  dow Sqlcode = 0 and SF1NUM < MaxSFLrec;
    exec sql fetch C1 into :RecordDS;
    if sqlcode = 0;
      S1ANN0 = OTANN0;
      S1COR0 = OTCOR0;
      S1NOM0 = CLNOM0;
      SF1NUM += 1;
      write SFL1;
    else;
      Dspf.SflEnd = *on; // SFLEND *END
    endif;
  enddo;

  NBRRECS = SF1NUM;
  S1MSG = %Editc(NBRRECS:'X') + ' record loaded. No more records +
  to load';
  if sqlcode = 0 and NBRRECS >= MaxSFLrec; // MaxSFLrec reached
    S1MSG = %Editc(NBRRECS:'X') + ' records loaded. Use filters field +
    to limit the records to be loaded.';
  endif;

  if NBRRECS = 0;
    clear SFL1;
    SF1NUM += 1;
    S1ANN0 = '*';
    S1MSG = 'No records loaded';
    write SFL1;
  endif;

end-proc;
//*************************************************************
// Set filters filed  //*************************************************************
dcl-proc SetFilters;
  if (F1ANN0 <> F1ANN0prv); // char filter
    F1ANN0prv = F1ANN0;
    F1ANN0lke = '%' + %trim(F1ANN0) + '%';
    ReLoadSFL = *on;
  endif;
  if (F1COR0 <> F1COR0prv); // numeric filter need str & end
    F1COR0prv = F1COR0;
    F1COR0str = F1COR0;
    F1COR0end = F1COR0;
    ReLoadSFL = *on;
  endif;
  if (F1COR0 = 0); // numeric filter: if 0 set from 0 to HiVal
    F1COR0prv = F1COR0;
    F1COR0str = *zeros;
    F1COR0end = *HiVal;
  endif;
  if (F1NOM0 <> F1NOM0prv); // Name
    F1NOM0prv = F1NOM0;
    F1NOM0lke = '%' + %trim(F1NOM0) + '%';
    ReLoadSFL = *on;
  endif;
end-proc; 



Don't forget to set the screen to 132 columns!






I appreciate all the comments made on this blog. For more details and to access the files, check out this link












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