This is a sample of howto Use Postgresql with Marinas-GUI
Is the same clients example adapted to use Tposgres classes from HBPGSQL library
It shows howto connect to an existing database , create a table and edit or delete records from it.
Note that you need to put your database , user and password in the correct variables.
Probably somebody could improve this sample , I am not an SQL guru....
Improvments and corrections would be accepted
Now Updated ( code reduced and formated using hbformat )
Este es un ejemplo de como usar Postgresql con Marinas-GUI
Es el mismo ejemplo clients adaptado para usar las clases Tpostgres provistas por la libreria HBPGSQL
Muestra como conectarse a una base de datos existente , crear una tabla y editar o borrar registros.
Notese que debera colocar los datos correctos de login y base de datos en las variables correspondientes.
Probablemente alguien pueda mejorar este ejemplo , no soy ningun guru del SQL ...
Se aceptan correcciones y mejoras :-)
Ahora fue actualizado ( codigo fue reducido y formateado para mejor lectura con hbformat )
Contact: bruno.luciani at gmail dot com
Here you can donwload prg code an Mip file to compile in Marinas-IDE
Take care with library names in windows , this project was tested on Linux Ubuntu 10.04 , some library
could have diferent name and location.
Aqui pueden descargar el codigo prg y su correpondiente archivo MIP para compilar en Marinas-IDE
Tengan en cuenta que el proyecto fue probado en Linux Ubuntu 10.04 , y las librerias a agregar en Windows
pueden diferir su nombre y ubicacion , especialmente la de postgres.
Linux
Download : ClientsPG.rar
Windows
Download : ClientsPGWIN.rar
| clientspg.prg - Postgres Database example for marinas | |
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/* * Borrowed from simple.prg 14094 2010-03-07 18:03:17Z vszakats $ * Adapted for Marinas-GUi by Bruno Luciani */ #include "marinas-gui.ch" #include "common.ch" #define DEMOTITLE "Multiplatform Postgres Demo" REQUEST HB_LANG_ESWIN REQUEST HB_CODEPAGE_ESWIN Function Main () private oServer, oQuery, oRow, cQuery cHost:="localhost" cDatabase:="database" cUser:="user" cPass:="password" conectar() HB_CDPSELECT('ESWIN') HB_LANGSELECT('ESWIN') REQUEST DBFCDX , DBFFPT RDDSETDEFAULT( "DBFCDX" ) SET ENTERTAB .T. // Replace Minigui SET NAVIGATION EXTENDED lNewRecord := .F. ANNOUNCE RDDSYS REQUEST DBFCDX , DBFFPT RDDSETDEFAULT( "DBFCDX" ) SET FILECASE LOWER SET DIRCASE LOWER SET DELETE ON SET DECIMALS TO 3 SET FIXED ON SET DATE BRITISH SET DATE FORMAT TO "dd/mm/yyyy" SET SCOREBOARD OFF SET AUTOPEN OFF // Main Window Creation CREATE WINDOW d_window ROW 0 COL 0 WIDTH 800 HEIGHT 600 CAPTION DEMOTITLE ONINIT {|| mg_Set( "d_window" , "Style_Grid_1" , "value" , 1 ) } ONRELEASE {|| closebase() } ICON "resource/d_test.png" MAIN .T. mainmenu() mtoolbar() mstatusbar() creategrid() createbase() refresh() buttons() END WINDOW mg_Do( "d_window" , "center" ) mg_Do( "d_window" , "activate" ) Return .T. //Main menu creation function Function mainmenu() CREATE MAIN MENU OF d_window CREATE POPUP "&ABM" CREATE ITEM "New Record" ONCLICK new() ITEMNAME item1 FONTNAME "mg_monospace" PICTURE "resource/d_test.png" END ITEM CREATE ITEM "Edit Record" ONCLICK edit() FONTNAME "mg_monospace" PICTURE "resource/d_test.png" END ITEM SEPARATOR CREATE ITEM "Delete Record" ONCLICK DeleteItem() FONTNAME "mg_monospace" CHECKED .T. END ITEM SEPARATOR CREATE ITEM "Exit" ONCLICK mg_Do( mg_GetLastActivatedWindowName() , "release" ) PICTURE "resource/d_test_stop.png" END ITEM END POPUP CREATE POPUP "M&enu 2" CREATE ITEM "Item 1" ONCLICK mg_MsgInfo( "Click from Item 1" ) PICTURE "resource/d_test.png" END ITEM CREATE ITEM "Item 2" ONCLICK mg_MsgInfo( "Click from Item 2" ) END ITEM CREATE ITEM "Item 3 (CheckMark)" ONCLICK mg_MsgInfo( "Click from Item 3" ) END ITEM END POPUP CREATE POPUP "&Help" CREATE ITEM "About" ONCLICK { || mg_MsgInfo("Marinas Version : "+mg_Version() ) } PICTURE "resource/d_test.png" END ITEM END POPUP END MENU Return .T. // Toolbar creation function Function mtoolbar() CREATE TOOLBAR myTollbar TOOLTIP "ToolBar ToolTip" CREATE TOOLBUTTON ToolBar_Button_1 CAPTION "Exit Demo" TOOLTIP "Button Exit Tooltip" ONCLICK mg_Do( "d_window" , "release" ) PICTURE "resource/d_test_stop.png" END TOOLBUTTON TOOLBARSEPARATOR CREATE TOOLBUTTON ToolBar_Button_2 CAPTION "Data Entry" TOOLTIP "Start Modal Window" ONCLICK new() PICTURE "resource/d_window_modal.png" END TOOLBUTTON TOOLBARSEPARATOR CREATE TOOLBUTTON ToolBar_Button_4 CAPTION "About" TOOLTIP "Button About Tooltip" ONCLICK mg_MsgInfo( mg_Version() ) PICTURE "resource/d_test.png" END TOOLBUTTON TOOLBARSEPARATOR END TOOLBAR Return .T. // StatusBar creation function Function mstatusbar() CREATE STATUSBAR CAPTION "Marinas-Gui StatusBar Ready !!!" TOOLTIP "StatusBar ToolTip" END STATUSBAR Return .T. // Edit window ( modal ) // Funcion que crea el Grid para el despligue de los datos de la base clientes Function CreateGrid() CREATE GRID Style_Grid_1 ROW 20 COL 40 WIDTH 680 HEIGHT 300 VALUE 1 COLUMNWIDTHALL {30,60,150,90,120,120,90} COLUMNALIGNALL {"Qt_AlignRight","CENTER","CENTER","CENTER","CENTER","CENTER","CENTER"} BACKCOLOR {255,223,255} SELECTIONBACKCOLOR {255,0,0} COLUMNHEADERALL {'Rec','Code','Name','Telephone ','Adress','City','Start Date'} END GRID return .T. // Main window edit button's creation function buttons() CREATE BUTTON Style_Button_4 ROW 450 COL 540 WIDTH 60 HEIGHT 28 CAPTION "New" ONCLICK new() END BUTTON CREATE BUTTON Style_Button_5 ROW 450 COL 620 WIDTH 60 HEIGHT 28 CAPTION "Edit" ONCLICK Edit() END BUTTON CREATE BUTTON Style_Button_6 ROW 450 COL 700 WIDTH 60 HEIGHT 28 CAPTION "Delete" ONCLICK DeleteItem() END BUTTON return .T. // Database Creation if not exist Function createbase() IF oServer:TableExists( "clients" ) if mg_msgyesno("Do you like to start using a fresh database ?") oQuery := oServer:Execute( "DROP TABLE clients") // mg_log(oQuery := oServer:Execute( "DROP TABLE clients" ),.T.,.T.,.T.) oQuery:Destroy() Else return endif endif cQuery := "CREATE TABLE clients(" cQuery += " Codigo integer not null primary key, " cQuery += " Nombre Varchar(40), " cQuery += " Telefono varchar(15), " cQuery += " Direccion varchar(30), " cQuery += " Ciudad varchar(30), " cQuery += " Fecha Date ) " oQuery := oServer:Query( cQuery ) IF oQuery:neterr() mg_log( hb_utf8tostr(oQuery:ErrorMsg()),.T.,.T.,.T. ) ENDIF oQuery:Destroy() oServer:StartTransaction() FOR i := 1 TO 50 cQuery := "INSERT INTO clients(codigo, nombre, telefono, direccion, ciudad, fecha) " +; "VALUES( " + str( i+1000 ) + " ,'Giuseppe Juliani','004568989899','Via Romana 8989','Florence','30-04-2011'"+" )" // mg_log:=(cQuery,.T.,.T.,.T.) oQuery := oServer:Query( cQuery ) IF oQuery:neterr() mg_log(hb_utf8tostr(oQuery:errorMsg()),.T.,.T.,.T.) ENDIF oQuery:destroy() NEXT oServer:Commit() return .T. //New Record function /////////////// FUNCTION new() lNewRecord := .T. load() refresh() RETURN // Data edit function FUNCTION edit() lNewRecord := .F. load() refresh() RETURN FUNCTION load() LOCAL item_grid := Array( 0 ) IF !( lNewRecord ) registro := mg_Get( "d_window", "Style_Grid_1", "value" ) IF registro = 0 mg_msginfo( "You need to select an item to edit", "Error Editing !" ) RETURN ENDIF item_grid := item_grid := mg_Get( "d_window" , "Style_Grid_1" , "item" , registro ) nRecord := item_grid[1] // mg_log(str(nRecord)) oQuery := oServer:Query( "SELECT codigo, nombre, telefono, direccion, ciudad , fecha FROM Clients" ) oQuery:goto( nRecord ) ENDIF CREATE WINDOW Modal_1 ROW 0 ; COL 0 WIDTH 400 ; HEIGHT 300 CAPTION "Data Entry "+" - " + Time() BACKCOLOR { 219 , 244 , 208 } MODAL .T. CREATE KEY Plus ACTION {|| mg_Do( cWin , "Style_Button_1" , "ONCLICK" ) } END KEY CREATE FRAMEBOX Style_Frame_1 ROW 5 COL 10 WIDTH 375 HEIGHT 275 CAPTION "Client" END FRAMEBOX CREATE BUTTON Style_Button_1 ROW 230 COL 310 WIDTH 60 HEIGHT 28 CAPTION "Save" ONCLICK SaveData() END BUTTON * Aca van los textbox CREATE LABEL Label_1 ROW 20 COL 20 VALUE "Code:" AUTOSIZE .T. TRANSPARENT .F. TOOLTIP "Label Tooltip" END LABEL CREATE TEXTBOX Text_1 ROW 20 COL 80 WIDTH 100 HEIGHT 24 ALIGN Qt_AlignRight TOOLTIP "Client Number" UPPERCASE .T. MAXLENGTH 5 * BACKCOLOR {0,0,0,} * VALUE "" END TEXTBOX CREATE LABEL Label_2 ROW 50 COL 20 VALUE "Name:" AUTOSIZE .T. TRANSPARENT .F. TOOLTIP "Label Tooltip" END LABEL CREATE TEXTBOX Text_2 ROW 50 COL 80 WIDTH 200 HEIGHT 24 ALIGN Qt_AlignLeft TOOLTIP "Client Name" UPPERCASE .T. MAXLENGTH 30 * BACKCOLOR {0,0,0,} * VALUE "" END TEXTBOX CREATE LABEL Label_3 ROW 80 COL 20 VALUE "Telephone:" AUTOSIZE .T. TRANSPARENT .F. TOOLTIP "Label Tooltip" END LABEL CREATE TEXTBOX Text_3 ROW 80 COL 80 WIDTH 150 HEIGHT 24 ALIGN Qt_AlignLeft TOOLTIP "Client Telephone" UPPERCASE .T. MAXLENGTH 13 * BACKCOLOR {0,0,0,} * VALUE "" END TEXTBOX CREATE LABEL Label_4 ROW 110 COL 20 VALUE "Adress:" AUTOSIZE .T. TRANSPARENT .F. TOOLTIP "Label Tooltip" END LABEL CREATE TEXTBOX Text_4 ROW 110 COL 80 WIDTH 300 HEIGHT 24 ALIGN Qt_AlignLeft TOOLTIP "Client Adress" UPPERCASE .T. MAXLENGTH 30 * BACKCOLOR {0,0,0,} * VALUE "" END TEXTBOX CREATE LABEL Label_5 ROW 140 COL 20 VALUE "City:" AUTOSIZE .T. TRANSPARENT .F. TOOLTIP "Label Tooltip" END LABEL CREATE TEXTBOX Text_5 ROW 140 COL 80 WIDTH 300 HEIGHT 24 ALIGN Qt_AlignLeft TOOLTIP "Client city" UPPERCASE .T. MAXLENGTH 30 * BACKCOLOR {0,0,0,} * VALUE "" END TEXTBOX CREATE LABEL Label_6 ROW 170 COL 20 VALUE "Fecha Ing.:" AUTOSIZE .T. TRANSPARENT .F. TOOLTIP "Label Tooltip" END LABEL CREATE TEXTBOX Text_6 ROW 170 COL 80 WIDTH 100 HEIGHT 24 ALIGN Qt_AlignRight TOOLTIP "Client start date " UPPERCASE .T. MAXLENGTH 8 * BACKCOLOR {0,0,0,} VALUE dtoc(date()) END TEXTBOX if !(lNewRecord) oRow := oQuery:getrow() mg_Set("Modal_1","text_1","value",str( oQuery:Fieldget( 1 ))) mg_Set("Modal_1","text_2","value", oQuery:Fieldget( 2 )) mg_Set("Modal_1","text_3","value", oQuery:Fieldget( 3 )) mg_Set("Modal_1","text_4","value", oQuery:Fieldget( 4 )) mg_Set("Modal_1","text_5","value", oQuery:Fieldget( 5 )) mg_Set("Modal_1","text_6","value",Dtoc( oQuery:Fieldget( 6 ))) endif mg_Do("Modal_1","text_1","setfocus") END WINDOW mg_Do( "Modal_1" , "center" ) mg_Do( "Modal_1" , "activate" ) return .T. // Save new or edited data , depends on lNewRecord variable FUNCTION SaveData() IF ( lNewRecord ) oRow := oQuery:Blank() ENDIF oRow:FieldPut( 1, Val( mg_get("Modal_1","text_1","value" ) ) ) oRow:FieldPut( 2, mg_Get( "Modal_1","text_2","value" ) ) oRow:FieldPut( 3, mg_Get( "Modal_1","text_3","value" ) ) oRow:FieldPut( 4, mg_Get( "Modal_1","text_4","value" ) ) oRow:FieldPut( 5, mg_Get( "Modal_1","text_5","value" ) ) oRow:FieldPut( 6, CToD( mg_Get("Modal_1","text_6","value" ) ) ) IF ( lNewRecord ) oQuery:Append( oRow ) ELSE oQuery:Update( oRow ) ENDIF IF oQuery:NetErr() mg_log( hb_utf8tostr( oQuery:errorMsg() ), .T. , .F. , .F. ) ENDIF oQuery:Destroy() mg_Do( "Modal_1", "Release" ) RETURN .T. // Connect funtion to database in Postgres SQL server FUNCTION conectar() oServer := TPQServer():New( cHost, cDatabase, cUser, cPass ) IF oServer:NetErr() mg_log( hb_utf8tostr( oServer:errorMsg() ), .T. , .T. , .T. ) QUIT ENDIF oServer:SetVerbosity( 2 ) oServer:traceon( "simple.log" ) RETURN // Open base function and index check FUNCTION openbase() conectar() RETURN .T. // close database on main window release FUNCTION closebase() oServer:Destroy() mg_msginfo( "Server Disconnected !", "Postgres Server" ) RETURN .T. // Grid Data Refresh FUNCTION refresh() LOCAL aStruct mg_Do( "d_window", "Style_Grid_1", "deleteallitems" ) oQuery := oServer:Query( "SELECT codigo, nombre, telefono, direccion, ciudad , fecha FROM Clients ORDER by codigo" ) DO WHILE ! oQuery:Eof() aData := { oQuery:RecNo(), oQuery:FieldGet( 1 ), oQuery:FieldGet( 2 ), oQuery:FieldGet( 3 ), oQuery:FieldGet( 4 ), oQuery:FieldGet( 5 ), oQuery:FieldGet( 6 ) } mg_Do( "d_window", "Style_Grid_1", "additem", aData ) oQuery:Skip() ENDDO oQuery:Destroy() RETURN .T. // Item delete from Database function FUNCTION DeleteItem() LOCAL item_grid := Array( 0 ) registro := mg_Get( "d_window", "Style_Grid_1", "value" ) IF registro = 0 mg_msginfo( "You need to select an Item to delete", "Error deleting !" ) RETURN ENDIF item_grid := mg_Get( "d_window" , "Style_Grid_1" , "item" , registro ) nRecord := item_grid[1] mg_msginfo( "You try to delete Client " + hb_osnewline() + "Client: " + item_grid[3] + hb_osnewline() + "Record number: " + Str( item_grid[1] ) ) oQuery := oServer:Query( "SELECT codigo, nombre, telefono, direccion, ciudad , fecha FROM Clients" ) oQuery:goto( nRecord ) oRow := oQuery:getrow() oQuery:Delete( oRow ) IF oQuery:NetErr() mg_log( hb_utf8tostr( oQuery:errorMsg() ), .T. , .F. , .F. ) ENDIF oQuery:Destroy() refresh() RETURN |
