[FX.php List] FX and Editing Global Fields

[Karstyn McCoy]

Hey Bradley,

I fairly certain that syntax is used if you have to first populate a global
value before you need to use it, within a single session. Personally, I
don't see it being very useful in practice, but I'm sure some resourceful
developer is putting to good use somewhere.

If you can explain how you are planning on using the global you are trying
to set, or the purpose of the global, there may be other ways to accomplish
what you are after.


--Karstyn


On Mon, Nov 15, 2010 at 4:55 PM, Bradley Creamer <creamerbradley at fhda.edu>wrote:

>  Hi Karstyn,
>
> Here's the instruction set from the "Function Reference for FX.php":
>
> SetFMGlobal ($globalFieldName, $globalFieldValue)
> This function is FileMaker 7 specific and is equivalent to appending
> ".global" to a field name in order
> to set a global field. In order to ensure that a global is set in FIleMaker
> 7 (before performing a script,
> for example), use this function instead of AddDBParam() to set the global
> field.
>
> >> The $globalFieldName parameter should contain the name of the FileMaker
> global field to be
> set.
>
> >> The value passed via $globalFieldValue will be stored in the specified
> global field before other
> FileMaker actions are performed.
>
> That's all I can find. So, my expectations of this function is to "set" the
> global field permanently regardless of session. I know that FMP11 handles
> things much differently than FMP6, but why would the DB reset the value of a
> global field when it's asked so specifically change that value?
>
> Regardless of my intent, where does it say globals are set on a per-session
> only, then revert?
>
> I did find this from FileMaker's CWP documentation:
>
>
> For direct XML requests and requests made via XSLT stylesheets that don’t
> use sessions, the global values expire immediately after the request is
> made. For requests made via an XSLT stylesheet that use sessions, the global
> values persist for the duration of the session defined in the stylesheet, or
> until they are changed again with another request.
>
> I seriously don't understand this behavior. Does anyone know of a
> work-around that makes the NEW global field value persist using XML?
>
> Thanks,
> Bradley
>
>
> On 11/15/2010 4:41 PM, Karstyn McCoy wrote:
>
> Hi Bradley,
>
>  Just to expand on this a bit, PHP can pull data from a global field, but
> it will default to the value that was stored while the database was last
> opened in single user mode.
>
>  Remember that global fields are user session specific, so they can behave
> much different from the web then they may from a FM client. As Tim just
> mentioned the value may be set correctly, but each new PHP query starts a
> new user session, so you will not get the last value you set.
>
>  It may help to know the broader issue you are trying to solve.
>
>
> --Karstyn
>
>
> On Mon, Nov 15, 2010 at 4:32 PM, Tim 'Webko' Booth <tim at nicheit.com.au>wrote:
>
>>
>>  On 16/11/2010, at 11:25 AM, Bradley Creamer wrote:
>>
>>  Hi Chris,
>>
>> I'm specifically asking you this question because I found your post at:
>>
>>
>> http://filemaker.463488.n4.nabble.com/Set-Global-Field-in-FileMaker-from-PHP-td2324363.html
>>
>> ... where you say that FX works when editing a global field.
>>
>> I haven't been successful.
>>
>>
>>  How do you know that?
>>
>>  It may well be edited, but the next request you make effectively re-logs
>> the web user in (the web is stateless...) so that the global will be rest to
>> default... at least, that is my understanding...
>>
>>  Now, my question - what are you trying to use a global field to do?
>>
>>  Cheers
>>
>>  Webko
>>
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>>
>
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