Lookup method of Tdatabase

[Silvio.Falconi]

sent a new demo reserva.dbf

[Silvio.Falconi]

James,

very good finding

many thanks

Antonio congratulations for the new look, you look like santa claus ( fivewin's Santa claus)

Anyway I don't think the error is that i don't think at all that the function makes mistake for those wrong records, anyway tonight I recreated a new demo archive and I'm trying IsFree ()

[Antonio Linares]

thank you

I am trying to get a better quality photo with 80x80 pixels from this one. Maybe someone could help ?

[cnavarro]

Mejor calidad es difícil

[Silvio.Falconi]

I tested a small sample with one record on archive

as you an see here



on Edit I check ( when I change the date or type or number)

lFreeRoom:= Isfree(cCamera,cTypeRoom,ddcheckout,ddcheckin,oPrenotazioni)

Code: Select all | Expand

Function Isfree(cCamera,cTypeRoom,dCheckOut,dCheckIn,oPrenotazioni)
local lreturn :=.f.
local cSearch := oPrenotazioni:ApplyParams( "ROOM_ID == ? .AND. ALLTRIM(TYPE) == ? .AND. RECNO() != ? .AND. (CHECK_IN > ? .OR. CHECK_OUT < ? )", ;
            { cCamera, ALLTRIM( cTypeRoom ), oPrenotazioni:RecNo(), dCheckOut, dCheckIn } )

if oPrenotazioni:LookUp( cSearch, nil, { || .T. } ) == .T.
   ? "room is available"
   lreturn :=.t.
else
   ? "room is not availble"
   lreturn :=.f.
endif
return lreturn
 

give me the message "room is not availble"

[cnavarro]

Sorry Silvio

Code: Select all | Expand

            { cCamera, ALLTRIM( cTypeRoom ), oPrenotazioni:RecNo(), dCheckOut, dCheckIn } 
 

You don't think this line should be

Code: Select all | Expand

            { cCamera, ALLTRIM( cTypeRoom ), oPrenotazioni:RecNo(), dCheckIn, dCheckOut } 
 

[James Bott]

CNavarro,

You don't think this line should be:

Code: Select all | Expand

{ cCamera, ALLTRIM( cTypeRoom ), oPrenotazioni:RecNo(), dCheckIn, dCheckOut }

Originally, I thought this also, but it gets evaluated like this:

Code: Select all | Expand

... .and. ( oPrenotazioni:Check_IN > dCheck_OUT .or. oPrenotazioni:Check_OUT < dCheck_IN )

Thus it is checking to see that the proposed check_IN is less than the check_OUT of the record being evaluated OR the proposed check_OUT is less than the check_IN date of the record being evaluated. I know it is hard to grasp, but it only wants to know if there is no overlap in the reservation time. If it meets either one of the above tests, then it does not overlap.

James

[Enrico Maria Giordano]

I am trying to get a better quality photo with 80x80 pixels from this one. Maybe someone could help ?

Look at your mailbox and let me know.

EMG

[Antonio Linares]

Thank you Enrico!

[nageswaragunupudi]

Mr. Silvio

I modified the test.prg sent by you.
Please try this.
I am sure the results are correct.

Code: Select all | Expand

#include "FiveWin.ch"
#include "dtpicker.ch"

request dbfcdx
request dbffpt

request hb_lang_it
request hb_codepage_itwin

function Main()

   RddSetDefault( "DBFCDX" )
   HB_LANGSELECT( "IT" )
   HB_SETCODEPAGE( "ITWIN" )
   SetHandleCount( 100 )
   FWNumFormat( "E", .t. )
   SetGetColorFocus()

   SET DATE FORMAT "dd-mm-yyyy"
   SET DELETED     ON
   SET CENTURY     ON
   SET EPOCH TO    year( date() ) - 20
   SET MULTIPLE    OFF

   Test()

return nil

//----------------------------------------------------------------------------------------------------------------------------------------------//
function test()

   local oReserva
   local oDlg, oBar, oBrw, oFont

   oReserva := TReserva():New()
   oReserva :setorder( 0 )
   oReserva:GoTop()

/*
   oReserva:goto(6) // nrecord number 6
   oReserva:Edit()
*/

   DEFINE FONT oFont NAME "TAHOMA" SIZE 0,-12
   DEFINE DIALOG oDlg SIZE 700,400 PIXEL TRUEPIXEL FONT oFont TITLE "RESERVA"
   DEFINE BUTTONBAR oBar OF oDlg SIZE 80,32 2007

   @ 32,20 XBROWSE oBrw SIZE -200,-20 PIXEL OF oDlg DATASOURCE oReserva ;
      COLUMNS "DATE","ROOMS_ID","CHECK_IN","CHECK_OUT","STATUS","TYPE" ;
      LINES NOBORDER

   WITH OBJECT oBrw
      :nMarqueeStyle := MARQSTYLE_HIGHLROW
      :RecSelShowRecNo()
      :AddVar( "nBooked", 0 )
      :bClrStd := { || If( oBrw:BookMark == oBrw:nBooked, { CLR_WHITE, CLR_HRED }, { CLR_BLACK, CLR_WHITE } ) }
      //
      :CreateFromCode()
   END

   DEFINE BUTTON OF oBar PROMPT "New"    CENTER ACTION oBrw:EditSource( .t. )
   DEFINE BUTTON OF oBar PROMPT "Modify" CENTER ACTION oBrw:EditSource()

   ACTIVATE DIALOG oDlg CENTERED
   RELEASE FONT oFont

return nil

//----------------------------------------------------------------------------------------------------------------------------------------------//

function Edit_Reservation( oRec )

   local oDlg, oFont, oBold, oSay, oGrp, oBtn, bCheck, cText := ""
   local aGet[4]
   local oBrw  := oRec:oBrw
   local lNew  := ( oRec:RecNo == 0 )
   local lSave := .f.
   local lFree := .t.

   DEFINE FONT oFont NAME "MS Sans Serif" SIZE 0,-8
   oBold := oFont:Bold()

   DEFINE DIALOG oDlg SIZE 276,230 PIXEL TRUEPIXEL ;
                   TITLE If( lNew, "New","Modifica" ) + " record" FONT oFont

   @ 0, 8 GROUP oGrp TO 140, 268 OF oDlg PIXEL

   @  24, 20 SAY "Number:" OF oDlg SIZE 52, 16 PIXEL FONT oFont
   @  20, 94 GET aGet[1]  VAR oRec:Rooms_Id  PICTURE "9999" OF oDlg SIZE 40, 24 PIXEL FONT oFont

   @  52, 20 SAY "Type:" OF oDlg SIZE 36, 16 PIXEL FONT oFont
   @  48, 94 GET aGet[2]  VAR oRec:Type   PICTURE "99" OF oDlg SIZE 20, 24 PIXEL FONT oFont

   @  80, 20 SAY "Check In:" OF oDlg SIZE 54, 16 PIXEL FONT oFont
   @  76, 94 DTPICKER aGet[3]  VAR oRec:Check_In OF oDlg SIZE 108, 24 PIXEL FONT oFont

   @ 108, 20 SAY "Check Out:" OF oDlg SIZE 64,16 PIXEL FONT oFont
   @ 104, 94 DTPICKER aGet[4]  VAR oRec:Check_Out OF oDlg SIZE 108, 24 PIXEL FONT oFont   ;

   @ 148,  8 SAY oSay PROMPT cText SIZE 260,24 PIXEL OF oDlg CENTER VCENTER FONT oBold

   @ 192,  96 BUTTON oBtn PROMPT "Confirm" OF oDlg SIZE 84, 24 PIXEL FONT oFont ;
      WHEN oRec:Modified() .and. lFree ;
      DEFAULT ACTION ( lSave := .t., oDlg:End() )
   @ 192, 184 BUTTON oBtn PROMPT "Exit"    OF oDlg SIZE 84, 24 PIXEL FONT oFont ;
      CANCEL ACTION (oDlg:End())

   bCheck   := { || lFree := IsFree( oRec, oSay ), oDlg:AEvalWhen(), .t. }

   AEval( aGet, { |o| o:bValid := bCheck } )
   AEval( aGet, { |o| o:bChange := bCheck }, 3, 2 )

   ACTIVATE DIALOG oDlg CENTERED ON INIT Eval( bCheck )
   RELEASE FONT oFont, oBold

   if oBrw != nil .and. oBrw:nBooked != 0
      oBrw:nBooked   := 0
      oBrw:Refresh()
   endif

   IF lSave
     // oRec:SAVE()
   ENDIF

return nil

//----------------------------------------------------------------------------//

function Isfree( oRec, oSay )

   local lNew     := ( oRec:RecNo == 0 )
   local oDbf     := oRec:uSource
   local oBrw     := oRec:oBrw
   local lreturn := .t.
   local cSearch, nBooked := 0, hBooked

   cSearch  := "ROOMS_ID == ? .AND. ALLTRIM(TYPE) == ? .AND. RECNO() != ? .AND. " + ;
               "CHECK_IN <= ? .AND. CHECK_OUT >= ?"

   if Empty( oRec:rooms_id ) .or. Empty( oRec:Type ) .or. Empty( oRec:check_in ) .or. ;
      Empty( oRec:check_out ) .or. oRec:check_in > oRec:check_out

      lreturn     := .f.
      oSay:VarPut( "INVALID DATA" )
      oSay:SetColor( CLR_WHITE, CLR_RED )
      oSay:Refresh()

   else
      cSearch  := oDbf:ApplyParams( cSearch, { oRec:rooms_id, oRec:type, oRec:RecNo, ;
                                               oRec:check_out, oRec:check_in } )

      if oDbf:LookUp( cSearch, nil, { || nBooked := RECNO(), hBooked := FW_RecToHash(), .t. } ) == .t.
         lreturn  := .f.
         oSay:VarPut( "BOOKED FROM " + DTOC( hBooked[ "check_in" ] ) + " TO " + ;
                       DTOC( hBooked[ "check_out" ] ) )
         oSay:SetColor( CLR_WHITE, CLR_HRED )
         oSay:Refresh()
      elseif oRec:Modified()
         lreturn  := .t.
         oSay:VarPut( "FREE" )
         oSay:SetColor( CLR_WHITE, CLR_GREEN )
         oSay:Refresh()

      else
         lreturn  := .f.
         oSay:VarPut( "" )
         oSay:SetColor( CLR_BLACK, oSay:oWnd:nClrPane )
         oSay:Refresh()

      endif
   endif

   if oBrw != nil .and. oBrw:nBooked != nBooked
      oBrw:nBooked   := nBooked
      oBrw:Refresh()
   endif

return lreturn

//-------------------------------------------------------------------------------------------------------------------------------------------//
// CLASSES
//----------------------------------------------------------------------------//

CLASS TXData from TDataBase
   DATA cDbfPath INIT cFilePath( ExeName() )
ENDCLASS

//----------------------------------------------------------------------------//

CLASS TReserva from TXData

   METHOD New()
   METHOD Record( cFieldList, lNew )

ENDCLASS

METHOD New( lShared ) CLASS TReserva

   Default lShared := .t.
   ::Super:Open(,::cDbfPath + "Reserva" ,"DBFCDX", lShared)
   if ::Used()
      ::setOrder(1)
      ::GoTop()
   endif

   ::bEdit  := { |oRec| Edit_Reservation( oRec ) }

return Self

METHOD Record( cFieldList, lNew ) CLASS TReserva

   local oRec  := ::Super:Record( cFieldList, lNew )

   if oRec:RecNo == 0 // lNew
      WITH OBJECT oRec
         :Rooms_id   := "0001"
         :Type       := "01"
         :Check_in   := Date()
         :Check_Out  := Date()
      END
   endif

return oRec

//----------------------------------------------------------------------------//
 

[James Bott]

Nages,

Hmm, is there something different about the above two postings you made, or are they the same and you accidentally posted it twice?

[Otto]

Dear Mr. Rao,
Thank you for this nice sample. Would you be so kind to post the dbf structure?
Best regards,
Otto

[nageswaragunupudi]

Nages,

Hmm, is there something different about the above two postings you made, or are they the same and you accidentally posted it twice?

Same posting got posted twice. I don't know why. I deleted one of them now.

[James Bott]

Otto:

Code: Select all | Expand

Function genRESERVA()
   local aStruc:={}
   aadd( aStruc, { "DATE", "D",8, 0 } )
   aadd( aStruc, { "ROOMS_ID", "C",4, 0 } )
   aadd( aStruc, { "CHECK_IN", "D",8, 0 } )
   aadd( aStruc, { "CHECK_OUT", "D",8, 0 } )
   aadd( aStruc, { "STATUS", "C",2, 0 } )
   aadd( aStruc, { "TYPE", "C",2, 0 } )
   aadd( aStruc, { "FIRST", "C",15, 0 } )
   aadd( aStruc, { "LAST", "C",15, 0 } )
   aadd( aStruc, { "GUEST", "C",30, 0 } )
   aadd( aStruc, { "PHONE", "C",14, 0 } )
   aadd( aStruc, { "NUMPRE", "C",18, 0 } )
   aadd( aStruc, { "INVOICE", "C",18, 0 } )
   aadd( aStruc, { "SUBTOTAL", "N",12, 2 } )
   aadd( aStruc, { "DESCOUNT", "N",12, 2 } )
   aadd( aStruc, { "DATAPAYED", "D",8, 0 } )
   aadd( aStruc, { "DEPOSIT", "N",12, 2 } )
   aadd( aStruc, { "TOPAY", "N",12, 2 } )
   aadd( aStruc, { "TOTAL", "N",12, 2 } )
   aadd( aStruc, { "NOTE", "C",80, 0 } )
   aadd( aStruc, { "OMAGGIO", "L",1, 0 } )
   aadd( aStruc, { "LISTINO", "C",2, 0 } )
   aadd( aStruc, { "TIPODAY", "C",1, 0 } )
   aadd( aStruc, { "SECTOR", "C",1, 0 } )
   dbcreate( "RESERVA.DBF" , aStruc, "DBFCDX" )
Return nil


//---------------------------------------------------------------------------//

Function Reindex()
  ferase("Reserva.cdx")
  field ROOMS_ID, CHECK_IN, FIRST, LAST, TYPE, NUMPRE

  use Reserva exclusive
  index on (ROOMS_ID + DToS( CHECK_IN )) TAG "res_pre" TO RESERVA.cdx FOR ! deleted()
  index on ROOMS_ID + TYPE + DToS( CHECK_IN ) TAG "ROOMS+TYPE+CHECK_IN" TO RESERVA.cdx for ! deleted()
  index on upper(FIRST) TAG "FIRST" TO RESERVA.cdx FOR ! deleted() 
  index on upper(LAST) TAG "LAST" TO RESERVA.cdx FOR ! deleted()
  index on TYPE tag "TYPE" TO RESERVA.cdx FOR ! deleted()
  index on NUMPRE TAG "NUMPRE" TO RESERVA.cdx FOR ! deleted()
  //index on ROOMS_ID + TYPE TAG "ROOM+TYPE" TO RESERVA.cdx FOR ! deleted()  // maybe not needed?
  use
Return nil

[Otto]

James,
thank you.
Best regards,
Otto