From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of Irv Kalb
Sent: Sunday, 31 December 2000 16:55
To: [EMAIL PROTECTED]
Subject: Re: <lingo-l>appending a propList to another list
At 5:57 AM +0400 12/31/00, gopinath wrote:
>Hi Kerry and Ramesh,
>
>this is my script after all the help
>
>>property therecord, thedatabase
>> on new me
>> thedatabase=[:]
>> global RecordNUM
>> RecordNUM=RecordNUM+1
>> set recnum=RecordNUM
>> therecord=[#RecordNUM:recnum,#theword:" ",#themeaning:" "]
>> thedatabase.append(therecord))
>> put thedatabase
>> return thedatabase
>> end
>it just doesn't work
>the error is:
>'handler not found in object'
>This is NO project
>I am just learning
>so no hurry
>I am using D7
>regards
>Gopinath
>
Gopinath,
It looks like you are trying to build a database inside an object.
If this is what you are trying to do, then I would make a few
modifications. For example, split out the adding a record from the
"new" handler. Something like this (untested):
-- Database parent script
property thedatabase
on new me
thedatabase = [] -- this is a simple linear list
return me
end
on addrecord me, theword, themeaning
therecord = [#theword: theword, #themeaning: themeaning]
thedatabase.append(therecord) -- each record is itself a property list
end
First you create your database object like this:
global gDatabaseObject
gDatabaseObject = new(script "DataBase")
Then when you want to add records to your database, you would do:
global gDatabaseObject
gDatabaseobject.addrecord("eat", "to consume food")
gDatabaseobject.addrecord("type", "to press keys on a keyboard")
Later, you could add more handlers to your object, for example:
on findMeaning me, theWordToFind
nItems = count(thedatabase)
repeat with i = 1 to nItems
thisRecord = thedatabase[i]
if thisRecord.theword = theWordToFind then
return thisRecord.themeaning
end if
end repeat
alert("Could not find" && theWordToFind && "in the database")
end
And call it like this:
theMeaning = gDatabaseobject.findMeaning("eat")
Good luck.
Irv
--
Lingo / Director / Shockwave development for all occasions.
(Over two millions lines of Lingo code served!)
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