[FX.php List] preventing refresh from rePOSTing?

[Gjermund Gusland Thorsen]

Use a field for example populated from session with quality of Unique

If you repost, you will receive error 504

ggt

2008/6/5 Dale Bengston <dbengston at tds.net>:
> We are performing all record add/mod via AJAX. Page loads/refreshes only
> perform finds.
>
> Dale
>
> On Jun 4, 2008, at 9:59 PM, Bob Patin wrote:
>
>> Your solution is easy, although it means that the record is written on
>> page A and then you go to page B... I use that method in a lot of
>> situations.
>>
>> However, you wouldn't have to do a find for ALL fields on the form--just
>> one flag field.
>>
>> In your post, you'd send a variable that is a unique identifier, and which
>> could be written to a field in the database. Using PHP, create a random
>> number, write the record.
>>
>> If someone were to refresh, the query would find that the variable already
>> exists in a record, and skips the record-creation. It requires an additional
>> query on the page though, and also requires an extra field in the database.
>> Not really an elegant solution...
>>
>> I haven't used it, just spinning out a possibility...
>>
>> Bob Patin
>> Longterm Solutions
>> bob at longtermsolutions.com
>> 615-333-6858
>> http://www.longtermsolutions.com
>> FileMaker 9 Certified Developer
>> Member of FileMaker Business Alliance and FileMaker TechNet
>>
>>  CONTACT US VIA INSTANT MESSAGING:
>>    AIM or iChat: longterm1954
>>    Yahoo: longterm_solutions
>>    MSN: tech at longtermsolutions.com
>>    ICQ: 159333060
>>
>> --------------------------
>> Contact us for FileMaker hosting and programming for all versions of
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>>
>>
>> On Jun 4, 2008, at 5:30 PM, Joel Shapiro wrote:
>>
>>> Thanks for the quick reply, Bob.
>>>
>>> I had thought of that, but it seemed like a lot to do (do a find for all
>>> fields on the form)
>>>
>>> What I did was put:
>>> header('Location: mypage.php');
>>> exit;
>>>
>>> after a successful FMNew(), so now a refresh no longer contains POST data
>>>
>>> Solved (& pretty painlessly :)
>>>
>>> -Joel
>>>
>>>
>>> On Jun 4, 2008, at 3:08 PM, Bob Patin wrote:
>>>
>>>> I don't know of a standard way, but you might write some code that does
>>>> a duplicate check before writing the record; send some sort of unique
>>>> identifier with your POST, and then a dupe record couldn't be created...
>>>>
>>>> Off the top of my rather bald head,
>>>>
>>>> Bob Patin
>>>> Longterm Solutions
>>>> bob at longtermsolutions.com
>>>> 615-333-6858
>>>> http://www.longtermsolutions.com
>>>> FileMaker 9 Certified Developer
>>>> Member of FileMaker Business Alliance and FileMaker TechNet
>>>>
>>>> CONTACT US VIA INSTANT MESSAGING:
>>>>   AIM or iChat: longterm1954
>>>>   Yahoo: longterm_solutions
>>>>   MSN: tech at longtermsolutions.com
>>>>   ICQ: 159333060
>>>>
>>>> --------------------------
>>>> Contact us for FileMaker hosting and programming for all versions of
>>>> FileMaker
>>>> PHP • CDML • Full email services • Free DNS hosting • Colocation •
>>>> Consulting
>>>>
>>>>
>>>>
>>>>
>>>> On Jun 4, 2008, at 4:51 PM, Joel Shapiro wrote:
>>>>
>>>>> Hi all
>>>>>
>>>>> I've got a real small project in which a user fills out a web form, and
>>>>> as long as all required fields contain data, a new record gets created on
>>>>> submit.
>>>>>
>>>>> I've got the processing and the form on the same php page.
>>>>>
>>>>> Can anyone suggest a quick/easy way to prevent the user from rePOSTing
>>>>> -- and thus adding an additional (duplicate) record -- by refreshing the
>>>>> page after submission?  The page *does* need to allow a user to submit
>>>>> additional records after the first submission, but I don't want a simple
>>>>> refresh to create a new record.
>>>>>
>>>>> I can think of some ways to do this but don't want to re-invent the
>>>>> wheel if there's some standard way to do this already.
>>>>>
>>>>> TIA,
>>>>> -Joel
>>>>> _______________________________________________
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>>>>
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