Tutorial, Part 5

I've completed another tutorial.  This one extends the model again, adding
categories to transactions and an editable combo box to the view.  It also
touches on events and has a sidetrip into SmalltalkSystem, then builds a
simple 'system method' (that browses references to a method in and above a
selected class).

Part 5 and the other tutorials can be reached via
www.sirius.com/~lsumberg/PersonalMoney.  Please let me know if you have any
questions, comments, suggestions and corrections.

-- Louis

Good series of tutorials, thanks.

I think I've noticed a couple of "features", or not as the case may be:
1.    page 9 where you're adding a menu item to 'Class/Browse/Method
Hierarchy' you've got it calling #browseMethodReferences but the method
created in ClassBrowserShell is browseHierarchyReferences, AFAIK they both
need to be the same name.
2.    the ClassBrowserShell  method browseHierarchyReferences needs a test
for nil after the prompter assigns to method otherwise you get a walkback if
the user clicks cancel after pulling up the prompter.

i.e. it becomes

browseHierarchyReferences

 | method class |

 (class:= self selectedClass) notNil ifTrue:[
  method:= Prompter prompt:'Enter a method name:'.
  method notNil ifTrue:[
   self model browseReferencesTo: method asSymbol inAndAbove: class]]
3.    You can add similar menu items to the context menu of the class
browser portion of the shell, I use that more than the shell menu so I found
it a useful addition.

    cheers, Ian Oldham

"Louis Sumberg" <[hidden email]> wrote in message
news:[hidden email]...
> I've completed another tutorial.  This one extends the model again, adding
> categories to transactions and an editable combo box to the view.  It also
> touches on events and has a sidetrip into SmalltalkSystem, then builds a
> simple 'system method' (that browses references to a method in and above a
> selected class).
>
> Part 5 and the other tutorials can be reached via
> www.sirius.com/~lsumberg/PersonalMoney.  Please let me know if you have
any
> questions, comments, suggestions and corrections.
>
> -- Louis
>
>

"Ian Oldham" <[hidden email]> wrote in message
news:eNCQ5.1399$[hidden email]...
> Good series of tutorials, thanks.
>
> I think I've noticed a couple of "features", or not as the case may be:
> 1.    page 9 where you're adding a menu item to 'Class/Browse/Method
> Hierarchy' you've got it calling #browseMethodReferences but the method
> created in ClassBrowserShell is browseHierarchyReferences, AFAIK they both
> need to be the same name.
> 2.    the ClassBrowserShell  method browseHierarchyReferences needs a test
> for nil after the prompter assigns to method otherwise you get a walkback
if found
> it a useful addition.
>
>     cheers, Ian Oldham
>
> "Louis Sumberg" <[hidden email]> wrote in message
> news:[hidden email]...
> > I've completed another tutorial.  This one extends the model again,
adding
> > categories to transactions and an editable combo box to the view.  It
also
> > touches on events and has a sidetrip into SmalltalkSystem, then builds a
> > simple 'system method' (that browses references to a method in and above
a

Ian, Thanks for the bug fixes.  I've incorporated them in the online Part 5.
Good idea too on the context menu -- I'm using that one in Part 6, soon to
come, for another system-type method.

-- Louis

"Ian Oldham" <[hidden email]> wrote in message
news:eNCQ5.1399$[hidden email]...
> Good series of tutorials, thanks.
>
> I think I've noticed a couple of "features", or not as the case may be:
> 1.    page 9 where you're adding a menu item to 'Class/Browse/Method
> Hierarchy' you've got it calling #browseMethodReferences but the method
> created in ClassBrowserShell is browseHierarchyReferences, AFAIK they both
> need to be the same name.
> 2.    the ClassBrowserShell  method browseHierarchyReferences needs a test
> for nil after the prompter assigns to method otherwise you get a walkback
if found
> it a useful addition.
>
>     cheers, Ian Oldham
>
> "Louis Sumberg" <[hidden email]> wrote in message
> news:[hidden email]...
> > I've completed another tutorial.  This one extends the model again,
adding
> > categories to transactions and an editable combo box to the view.  It
also
> > touches on events and has a sidetrip into SmalltalkSystem, then builds a
> > simple 'system method' (that browses references to a method in and above
a