Stylistic question.

[Alex Tweedly]

On 20/06/2022 00:19, Bob Sneidar via use-livecode wrote:
> Well code shared commonly between multiple objects should generally be in an object shared by those objects. That can be the card, stack, behavior or front/back script. The script of a group as well.

Absolutely. And the converse - code that is not shared should be as low 
in the hierarchy as possible.

In this case, there is really no shared code.

If it's button "first" you call one handler. If it's button "whatever I 
called the second", you call a different handler. etc.  Nothing shared 
at all.


As to Brian's point about behaviours and Git, I can see that. I admit to 
being slightly "slack" about what code needs to go into behaviour 
scripts so it can be Gitted. If it's code that is very brief, and will 
"never" change, I put that in the regular stack. So in this case, I'd 
have the script of button "first" be

on mouseUp
    doCommandFirst
end mouseUp

and I'm willing to bet that will ever change :-)

> For example I have a behavior for all my datagrids. Each datagrid has a property called gridconstants which is an array of all the things specific to each datagrid. The behavior handlers will get this property so that I can use generic terms in the behavior like cTableName and cPriKey etc. Now my behavior handlers like selectionChanged and such become universal to all my datagrids. Only one place to edit the handlers now.

Sounds cool. If I ever use a Datagrid, I'll do that.

Alex.

> If I need to do anything specific with a datagrid, I keep those handlers in each datagrid script.
>
> Sent from my iPhone
>
>> On Jun 19, 2022, at 14:09, Brian Milby via use-livecode <use-livecode at lists.runrev.com> wrote:
>>
>> One reason would be if you were trying to use behaviors so you could manage your code with a repository like Git.  This would greatly reduce the number of behavior scripts that you would create.  One app that work on has the code in the stack’s behavior script.
>>
>> Sent from my iPhone
>>
>>> On Jun 19, 2022, at 4:33 PM, Alex Tweedly via use-livecode <use-livecode at lists.runrev.com> wrote:
>>>
>>> I've noticed that in a lot of the example code I've seen recently, there's a bit of a common pattern.
>>>
>>> In the card script, there will be code like
>>>
>>> on mouseUp
>>>   switch the short name of the target
>>>     case "first"
>>>         doCommandFirst
>>>         break
>>>     case "another"
>>>         doCommandAnother
>>>         break
>>>     case "lastnotleast"
>>>         doCommandlastnotleast
>>>         break
>>>   end switch
>>> end mouseUp
>>>
>>> I've seen this in examples from Livecloud, Appli, the WebApp example from Steven/Michael, and a few other places.
>>>
>>> I would generally have put this code in each button (or other control) directly, and I'm wondering whether there are advantages or preferences for one of those versus the other.
>>>
>>> Thanks for any opinions,
>>>
>>> Alex.
>>>
>>>
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