Platforms to show: All Mac Windows Linux Cross-Platform
Required plugins for this example: MBS SQL Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /SQL/SQLite load extension
This example is the version from Sat, 27th Sep 2019.
Project "SQLite load extension.xojo_binary_project"
Class App Inherits Application
Const kEditClear = "&Löschen"
Const kFileQuit = "Beenden"
Const kFileQuitShortcut = ""
EventHandler Sub Open()
// use internal sqlite library
call InternalSQLiteLibraryMBS.Use
dim con as SQLConnectionMBS
dim cmd as SQLCommandMBS
try
con = new SQLConnectionMBS // connection object
// where is the library?
'con.Option(con.kOptionLibrarySQLite) = "/usr/lib/libsqlite3.0.dylib"
// connect to database
dim path as string
if TargetMacOS then
path = "/tmp/test.db" // put the database in the temporary folder
else
path = "c:\test.db" // for Windows and Linux in the current folder the application is inside.
end if
con.Connect(path,"","",SQLConnectionMBS.kSQLiteClient)
// associate a command with connection
// connection can also be specified in SACommand constructor
'cmd.Connection=con
con.SQLiteEnableLoadExtension(True)
dim errorMessage as string
Dim file As FolderItem = SpecialFolder.Desktop.Child("MBS.dylib") // an extension as FolderItem or path
Dim r As Integer = con.SQLiteLoadExtension(file, errorMessage)
if errorMessage <> "" then
MsgBox errorMessage
Return
elseif r <> 0 then
MsgBox "Error: "+str(r)
Return
end if
// query version
cmd = new SQLCommandMBS
cmd.Connection = con
cmd.setCommandText("select VersionMBS()",cmd.kCommandTypeSQLStatement)
cmd.Execute
while cmd.FetchNext
MsgBox "Version: "+cmd.Field(1).asStringValue
wend
// commit changes on success
con.Commit
catch r as SQLErrorExceptionMBS
// SAConnection::Rollback()
// can also throw an exception
// (if a network error for example),
// we will be ready
try
// on error rollback changes
if con<>nil then
con.rollback
end if
catch x as SQLErrorExceptionMBS
// ignore
end try
// show error message
MsgBox r.message
end try
End EventHandler
End Class
Class Window1 Inherits Window
End Class
MenuBar MenuBar1
MenuItem FileMenu = "&Ablage"
MenuItem FileQuit = "#App.kFileQuit"
MenuItem EditMenu = "&Bearbeiten"
MenuItem EditUndo = "&Rückgängig"
MenuItem UntitledMenu1 = "-"
MenuItem EditCut = "&Ausschneiden"
MenuItem EditCopy = "&Kopieren"
MenuItem EditPaste = "&Einfügen"
MenuItem EditClear = "#App.kEditClear"
MenuItem UntitledMenu0 = "-"
MenuItem EditSelectAll = "&Alles auswählen"
End MenuBar
End Project
See also:
The items on this page are in the following plugins: MBS SQL Plugin.