[Tutor] playing around with function

[Alan Gauld]

"kakada" <hokkakada at khmeros.info> wrote
> I have problem with function jumping:

I'm not sure what you mean by "function jumping" but I'll
make a few comments...

> in my class, I have three function here:
>
> def gotoNextFuzzy(self):
>        state = "isfuzzy"
>        self.navigationNext(state)
>
> def gotoNextFuzzy(self):
>        state = "isapproved"
>        self.navigationNext(state)

As Luke pointed out these are the same so only
the second one will actually be present.

Note that you set state but it is only a local variable
within the method, it will not persist outside the method
so you cannot access it, I suspect you meant to write

self.state = "isapproved"

> def navigationNext(self,state):
>        if (self.getCurrentItem() == 0):
>            return 0
>        id = int(self.item.text(0))
>        for i in range(id,775):
>            i += 1

I'm not sure why you immediately add one.
you could change the values in range() to get the
same result:

for i in range(1,776):


>            state =

Its not clear what you are assigning here? An unprintable
character or a typo?

>            if (i == 775):
>                self.warningMessage()
>            else:
>                    if self.store.units[i].state():
>                        curItem = self.ui.treeWidget.topLevelItem(i)
>                        self.ui.treeWidget.setCurrentItem(curItem)
>
> self.ui.txtSource.setHtml(self.store.units[i].source)
>
> self.ui.txtTarget.setHtml(self.store.units[i].target)
>                        break

The indentation changes here but you refer to self which
suggests they should be inside the class. I'm not sure if
thats intentional(and thus an error?) or just a freak of email...

> and one calling built-in function:
>
> QtCore.QObject.connect(self.ui.btnNF,QtCore.SIGNAL("pressed()"),self.gotoNextFuzzy)
> and error said:
> Attribute Error: no attribute state

OK, but at what point did it say that? What does the stack trace in 
the error say?

> and if I do as follow:
>
> if self.store.units[i].isfuzzy():
> then it works.

So what is the problem? Like Luke I'm not sure I understand what
you are trying to do here.

HTH,


-- 
Alan Gauld
Author of the Learn to Program web site
http://www.freenetpages.co.uk/hp/alan.gauld