IMPLEMENTATION MODULE DBFSalesrec;
(*
 *  ModBase
 *  Release 3.0
 *  (c) Copyright 1986 - 1991 PMI
 *  P.O. Box 8402
 *  Green Bay Wi 53308
 *  All Rights Reserved
 *  by Ed Ross  
 *)

FROM ModBase3 IMPORT InitDBF,OpenDBF,CloseDBF,ReadDBRec,GetField,DBFile,
              DeleteRecord,DefaultFixUp,NilDBF,PosOfField;
FROM DBCopier IMPORT DBPack;
FROM DBIndxes IMPORT InitIndex,OpenIndex,AddToUpdateList,CloseIndex,
              CurrentRec,FindPositionCh,BuildIndex,GoTop,GoBottom,
              NextRecord,PrevRecord,CurrentKeyCh,FindPositionN,
              CurrentKeyN,InitCompIndex,BuildCompIndex,DBIndex;
FROM StrEdit IMPORT CrunchBlanks;
FROM DBStuff IMPORT MakeKey;
FROM Drectory IMPORT DeleteFile;
FROM StrConv IMPORT StrToReal;
FROM NumTypes IMPORT Real8;
FROM ScanUtils IMPORT Present,CaseSens;
FROM DBFields IMPORT GetDateField,GetLogicalField,GetNumField,Replace,
     ReplaceD,ReplaceN;

CONST
  Buffer = 0;
  Safty = TRUE;
  Exclusive = FALSE;
  AutoLock = TRUE;
  KeepDeleted = FALSE;
VAR
  DBInit,IndexOpen : BOOLEAN;


PROCEDURE MoveSalesrecToDBF(Rec : SalesRec );
(* This code will move the data from the record to *)
(* the data base                                   *)
BEGIN
  WITH Rec DO
    Replace( SalesrecDBF,  1,ITEMNBR);    (* Item number *)
    ReplaceN( SalesrecDBF,  2,Sold[1]   );    (* number of units sold in January *)
    ReplaceN( SalesrecDBF,  3,Sold[2]   );    (* Feb *)
    ReplaceN( SalesrecDBF,  4,Sold[3]   );    (* Mar *)
    ReplaceN( SalesrecDBF,  5,Sold[4]   );    (*  *)
    ReplaceN( SalesrecDBF,  6,Sold[5]   );    (*  *)
    ReplaceN( SalesrecDBF,  7,Sold[6]   );    (*  *)
    ReplaceN( SalesrecDBF,  8,Sold[7]   );    (*  *)
    ReplaceN( SalesrecDBF,  9,Sold[8]   );    (*  *)
    ReplaceN( SalesrecDBF, 10,Sold[9]   );    (*  *)
    ReplaceN( SalesrecDBF, 11,Sold[10]  );    (*  *)
    ReplaceN( SalesrecDBF, 12,Sold[11]  );    (*  *)
    ReplaceN( SalesrecDBF, 13,Sold[12]  );    (*  *)
END;  (* end of with REC *)
END MoveSalesrecToDBF;



PROCEDURE MoveSalesrecFromDBF(VAR Rec : SalesRec );
(* This code will move the data from the Database to *)
(* the record                                        *)
VAR B : BOOLEAN;
    R : Real8;
BEGIN
  WITH Rec DO
    GetField( SalesrecDBF,  1,ITEMNBR);   (* Item number *)
    GetNumField( SalesrecDBF,  2,Sold[1]     );   (* number of units Sold in January *)
    GetNumField( SalesrecDBF,  3,Sold[2]     );   (* Feb *)
    GetNumField( SalesrecDBF,  4,Sold[3]     );   (* Mar *)
    GetNumField( SalesrecDBF,  5,Sold[4]     );   (*  *)
    GetNumField( SalesrecDBF,  6,Sold[5]     );   (*  *)
    GetNumField( SalesrecDBF,  7,Sold[6]     );   (*  *)
    GetNumField( SalesrecDBF,  8,Sold[7]     );   (*  *)
    GetNumField( SalesrecDBF,  9,Sold[8]     );   (*  *)
    GetNumField( SalesrecDBF, 10,Sold[9]     );   (*  *)
    GetNumField( SalesrecDBF, 11,Sold[10]    );   (*  *)
    GetNumField( SalesrecDBF, 12,Sold[11]    );   (*  *)
    GetNumField( SalesrecDBF, 13,Sold[12]    );   (*  *)
END;  (* end of with REC^ *)
END MoveSalesrecFromDBF;





PROCEDURE MakeItemnbrKey(  DBF : DBFile; Idx : DBIndex;
                   VAR Key : ARRAY OF CHAR);
VAR
  B : BOOLEAN;
  FldNum : CARDINAL;
BEGIN
(* this routine doesn't alwasy work - may need to replace with getfiled*)
(*  FldNum := PosOfField(DBF,'Itemnbr');*)
  GetField(DBF,1,Key);
  MakeKey(Key);
END MakeItemnbrKey;




PROCEDURE OpenSalesrecDBF(WithIdx : BOOLEAN);
VAR ER : CARDINAL;
BEGIN

IndexOpen := WithIdx;
(* Open the DBF file *)
IF NOT DBInit THEN
  DBInit:=TRUE;
  InitDBF("Salesrec.DBF", SalesrecDBF,Buffer,Safty,Exclusive,
         AutoLock,DefaultFixUp );
 InitCompIndex( "Itemnbr.Idx",SalesRecIdx,SalesrecDBF,MakeItemnbrKey,Buffer, Safty,
                KeepDeleted,Exclusive);
 AddToUpdateList( SalesrecDBF, SalesRecIdx );
 
END;

 IF NOT OpenDBF( SalesrecDBF)
     THEN END;

(* open all indexes and append to dbfile *)
IF WithIdx THEN

 IF NOT OpenIndex( SalesRecIdx )
   THEN
     ER := BuildCompIndex(SalesRecIdx,'C','Itemnbr',40); (* check key lenght *)
   END;


 ActSalesrecIdx := SalesRecIdx; (* make current index *)
  END; (* end with indext *)
END OpenSalesrecDBF;



PROCEDURE CloseSalesrecDBF ();   (* close Data and index files *)

BEGIN
  CloseDBF(SalesrecDBF);  (* close dbf file *)
  IF IndexOpen
    THEN

     CloseIndex(SalesRecIdx ); (* close index file *)
     END; (* end index open*)
END CloseSalesrecDBF;



PROCEDURE FindSalesrecByItemnbr( Key : ARRAY OF CHAR) : BOOLEAN;
VAR Found : BOOLEAN;
    CKey : ARRAY[0..80] OF CHAR;
BEGIN
   ActSalesrecIdx := SalesRecIdx ;   (* make this index the active idx*)
   FindPositionCh( SalesRecIdx, Key, Found);
   CurrentKeyCh(SalesRecIdx,CKey);
   Found := Present(Key,CKey,CaseSens);
    IF Found
       THEN ReadDBRec( SalesrecDBF, CurrentRec( SalesRecIdx));
   END;
   RETURN Found;
END FindSalesrecByItemnbr;







PROCEDURE NextSalesrec () : BOOLEAN;
VAR
  L : LONGINT;    (* record number *)
BEGIN
  IF  NextRecord( ActSalesrecIdx,L)
    THEN ReadDBRec( SalesrecDBF,L  );
         RETURN TRUE;
    ELSE RETURN FALSE;
    END;
END NextSalesrec;

PROCEDURE PrevSalesrec () : BOOLEAN;
VAR
  L : LONGINT;    (* record number *)
BEGIN
  IF  PrevRecord( ActSalesrecIdx,L)
    THEN ReadDBRec( SalesrecDBF,L  );
         RETURN TRUE;
    ELSE RETURN FALSE;
    END;
END PrevSalesrec;

PROCEDURE FirstSalesrec ();
VAR
  L : LONGINT;    (* record number *)
BEGIN
  GoTop(ActSalesrecIdx);
  ReadDBRec( SalesrecDBF,CurrentRec(  ActSalesrecIdx));
END FirstSalesrec;

PROCEDURE LastSalesrec ();
VAR
  L : LONGINT;    (* record number *)
BEGIN
  GoBottom(ActSalesrecIdx);
  ReadDBRec( SalesrecDBF,CurrentRec(  ActSalesrecIdx));
END LastSalesrec;
PROCEDURE PackSalesrec();
VAR
  EM : CARDINAL;
  LI : LONGINT;
  Tmp : SalesRec;
BEGIN
  CloseSalesrecDBF();
  OpenSalesrecDBF(FALSE);  (* open with no index *)
  DBPack(SalesrecDBF);
  CloseSalesrecDBF();

  EM := DeleteFile('Itemnbr');
  OpenSalesrecDBF(TRUE);  (* open to rebuild the indexes*)
  CloseSalesrecDBF();
END PackSalesrec;

(* initialization code *)
BEGIN
 NilDBF(SalesrecDBF);
 IndexOpen := FALSE;
 DBInit:=FALSE; 
END DBFSalesrec.