[Lazarus] WebData

[Michael Van Canneyt]

Forgot the screenshot.

Michael.

On Fri, 15 Oct 2010, Michael Van Canneyt wrote:

>
>
> On Thu, 14 Oct 2010, Leonardo M. Ramé wrote:
>
>> On 2010-10-14 21:22:59 -0400, waldo kitty wrote:
>>> On 10/14/2010 19:47, Leonardo M. Ramé wrote:
>>>> On 2010-10-14 13:00:29 -0300, Leonardo M. Ramé wrote:
>>>>> On 2010-10-11 10:47:05 -0300, Leonardo M. Ramé wrote:
>>>>> >
>>>>>>> I will check your project at noon.
>>>>>>> 
>>>>>>> Michael.
>>>>>> 
>>>>>> Thanks.
>>>>>> 
>>>>> 
>>>>> Hi Michael, did you check my example?
>>>>> 
>>>> 
>>>> Nevermind, I found the solution.
>>> 
>>> *the* solution or /a/ solution?
>>> 
>> 
>> In this case, I think is *the* solution, because without it, the module
>> just don't work.
>> 
>> The problem was that I was missing placing an ExtJSJSONDataFormatter, and a
>> ExtJSJsonWebdataInputAdaptor, both linked to the TFPWebProviderDataModule's
>> ContentProducer and InputAdaptor properties.
>> 
>> It was easy to find it after I noted there was an "wmdebug" define turned
>> off in sqldbwebdata.pp, I turned it on and compiled. When I'd run the code
>> again, the Access Violation I was getting was more informative with a
>> detailed stacktrace who pointed me to fpwebdata.pp, line 828, where I saw
>> the need of a TCustomWebDataInputAdaptor.
>
> Exactly. Glad you found it.
>
> My apologies for not getting back to you earlier, it's been very busy days
> lately :(
>
> You also don't need the query component if you use the
> TSQLDBWebdataProvider, and definitely do not activate it, it serves no
> purpose (but I suspect this is the result of you trying to get it to work).
>
> Attached a screenshot of what it looks like in my browser after I dropped
> JSON formatters and input provider on the module - check out the URL I used.
> (changed the query and database name of course)
>
> I will change the implementation so it will give a more informative error,
> because like this, people will be confused - just like you were.
>
> Michael.
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