3,1 KiB
3,1 KiB
Omnis Commands Cheat Sheet
Die 10 wichtigsten Befehle
| # | Befehl | Was es tut | JS-Aequivalent |
|---|---|---|---|
| 1 | Calculate lX as expr |
Berechnung + Zuweisung | let x = expr |
| 2 | Do obj.$method() |
Methodenaufruf | obj.method() |
| 3 | If ... Else ... End If |
Bedingung | if ... else ... |
| 4 | For i from a to b step c |
Zaehlschleife | for (let i=a; i<=b; i+=c) |
| 5 | For each line in list |
Listen-Iteration | for (const item of arr) |
| 6 | While ... End While |
Bedingungsschleife | while (...) |
| 7 | Quit method lVal |
Methode beenden + Return | return val |
| 8 | OK message {text} |
Nachricht anzeigen | alert(text) |
| 9 | Switch ... Case ... End Switch |
Fallunterscheidung | switch ... case |
| 10 | Do inherited |
Super-Methode rufen | super.method() |
Variablen & Berechnung
Calculate lName as "Harry" String zuweisen
Calculate lSum as lA + lB Berechnen
Calculate lText as con("Hallo ", lName) String verketten
Calculate lUpper as upp(lName) Grossbuchstaben
Calculate lLen as len(lName) String-Laenge
Calculate lSub as mid(lName, 2, 3) Substring
Calculate lPos as pos("r", lName) Zeichen finden
Kontrollfluss
If lAge >= 18 If lStatus = 'A' | lStatus = 'B'
# erwachsen # A oder B
Else If lAge >= 14 End If
# jugendlich
Else Switch lStatus
# kind Case 'A'
End If # aktiv
Case 'I'
While lX < 100 # inaktiv
Calculate lX as lX + 1 Default
End While # sonstiges
End Switch
For lI from 1 to 10 step 1
# lI = 1, 2, 3, ...10
End For
Dialoge
OK message {Fertig!} Info-Dialog
Yes/No message {Loeschen?} Ja/Nein Dialog
If flag true ... End If Ergebnis pruefen
Prompt for input {Name?} lName Eingabe-Dialog
No/Yes message {Abbrechen?} Nein/Ja (Default=Nein)
Debugging
Breakpoint Debugger oeffnen (= debugger; in JS)
OK message {Debug: [lVar]} Quick-Debug mit Message
Trace log {[lVar]} In Trace-Log schreiben
SQL-Befehle (ueber Session/Statement)
Do lSess.$logon(host, user, pw, 'sess') Returns #F Verbinden
Do lStmt.$prepare('SELECT...WHERE id=:1') Returns #F Vorbereiten
Do lStmt.$execute(lID) Returns #F Ausfuehren
Do lStmt.$fetch(lList, kFetchAll) Returns #F Ergebnis holen
Do lStmt.$execdirect('INSERT...') Returns #F Direkt ausfuehren
Merkhilfe: Die Befehls-Familien
DATEN: Calculate, Do, Set current list
FLUSS: If/Else/End If, For/End For, While/End While, Switch/Case/End Switch
METHODE: Quit method, Do inherited, Quit all methods
DIALOG: OK message, Yes/No message, Prompt for input
FENSTER: Open window, Close window, Redraw, Enter data
SQL: $logon, $prepare, $execute, $fetch, $execdirect