Re: Checking a Record for a Field
Re: Checking a Record for a Field
- Subject: Re: Checking a Record for a Field
- From: "S. J. Cunningham" <email@hidden>
- Date: Mon, 16 Nov 2015 14:15:41 -0500
On Nov 16, 2015, at 2:06 PM, Steve Mills wrote:
> On Nov 16, 2015, at 11:51 AM, Axel Luttgens <email@hidden> wrote:
>
>> Perhaps may you pick an "impossible" value for each of your arguments, in which case you could rely on the behavior of the & operator when applied to records.
>>
>> For example, assuming none of your arguments may take missing value as a value:
>>
>> on myCoolHandler(someRecord)
>> set someRecord to someRecord & {Field_1:missing value, Field_2:missing value, Field_3:missing value}
>> if Field_1 of someRecord is not missing value then
>> — do something with Field_1
>> end if
>
> That won't help here. He wants to know if a field is present, not if its value is good.
Actually, the suggestion would work but it would defeat the objective of passing a variable number of arguments to the handler. I'd have to pass every field on every call.
Steve
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OS X 10.6.8, AppleScript 2.1.2
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