| Re: Iterative interfacing between client and server [message #169946 is a reply to message #169935] |
Fri, 01 October 2010 04:12   |
Graham Hobbs
Messages: 42
Registered: September 2010
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On Thu, 30 Sep 2010 11:52:27 -0400, Graham Hobbs <ghobbs(at)cdpwise(dot)net>
wrote:
> On Wed, 29 Sep 2010 11:42:38 -0400, Graham Hobbs <ghobbs(at)cdpwise(dot)net>
> wrote:
>
>> On Wed, 29 Sep 2010 07:17:14 -0700 (PDT), Captain Paralytic
>> <paul_lautman(at)yahoo(dot)com> wrote:
>>
>>> On 29 Sep, 04:16, Graham Hobbs <gho...@cdpwise.net> wrote:
>>>> On Mon, 27 Sep 2010 07:39:07 -0400, Jerry Stuckle
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> <jstuck...@attglobal.net> wrote:
>>>> >On 9/26/2010 10:06 PM, Graham Hobbs wrote:
>>>> >> Hello,
>>>>
>>>> >> Am still new at this, need to understand a concept before I start
>>>> >> coding. While the following is an over simplification, at the moment I
>>>> >> am more concerned with a) 'can it be done', b) preparing a design
>>>> >> document, so ..
>>>>
>>>> >> 1. my website will be driven by server pgm php1
>>>> >> 2. client accesses the one page website
>>>> >> 3. client enters/edits data in Forms ( to be javascript edited at
>>>> >> client machine) then submits
>>>> >> 4. pgm php1 receives the form data, passing it to a Windows cmd file
>>>> >> (calling dozens of pgms) for further processing and returning data to
>>>> >> php1
>>>> >> 5. php1 then returns the same page to the client with mostly the same
>>>> >> Form data but with additions and changes
>>>> >> 6. client views the Form data
>>>> >> 7. Repeat 3 thru 7 until client happy with results.
>>>>
>>>> >> So is my concept:
>>>> >> - feasible?
>>>> >> - reflects the way it's normally done (i.e. practical)?
>>>>
>>>> >> Please, thanks in advance
>>>> >> Graham
>>>>
>>>> >It can be done. I don't think it's very practical, though.
>>>>
>>>> ---
>>>> Thanks for your answers. So it can be done but my way is not the way
>>>> to go:-(.
>>>> not very practical - Jerry
>>>> it is a bad idea - Shelly
>>>> not that this makes this idea any better - Capt Para
>>>>
>>>> But am not a lot clearer on the 'best way'. Simplifying I hope,
>>>> suppose a user accesses my one page website, s/he sees unpopulated
>>>> fields (Forms?) for:
>>>>
>>>> Student Number
>>>> First Name
>>>> Surname
>>>> Faculty
>>>> Major
>>>>
>>>> So ..
>>>> 1. The user enters Student Number, clicks Submit
>>>> Server uses Student Number to access an sql table
>>>> Server sends page with first name, surname, faculty, major populated
>>>> goto 1.
>>>>
>>>> Is this a practical web application?
>>>>
>>>> Thanks again
>>>> Graham
>>>
>>> So you are suggesting:
>>> 1) User submits a request.
>>> 2) Server supplies a response.
>>>
>>> This is what every web page in the world does and you are asking if
>>> this is a practical web application.
>>>
>>> I'm sure you can work out that it is.
>> ---
>> Yes to your 1 and 2 and is very clear. That's half of what I asked..
>> What I'm asking is 'can this be an iterative transaction'.
>>
>> When I program CICS transactions I give the user a screen, he enters a
>> student number, a CICS pgm presents the results and sends a populated
>> screen; user updates some fields clicks Enter, changes are made to the
>> database, the same screen is represented with an 'update successful'
>> msg, user makes more changes, enter, database update, represent screen
>> etc. Then user enters anew student number and the same process occurs
>> (or user logs off).
>>
>> Points are taken with respect to logon ID/password - more scope for my
>> project.
>>
>> OK, maybe my original question might have been 'can I pgm in
>> php/html/javascript to emulate such a CICS transaction'?
>> Is this what is being suggested as impractical?
> ---
> CP, Jerry, Shelly,
> CICS eh! Am starting to feel at home:-) .. likely you know too what
> copybooks are? I will think to your comments especially about the
> 'cics differences' and will bother you again shortly - sorry .
> Graham
>
> P.S. Have googled, bought a php video tutorial, still not clear on
> 'calls' so a side question if I may:
>
> Being able to call a windows cmd file from my driver php pgm is a MUST
> for my project (enormously larger than the student record system I
> used as illustration) .. but I believe I can call a windows cmd file
> from php and something like this is possible:
>
> - block A of some php code
> - 'call udogen.cmd aparm, bparm' (udogen contains many calls)
> - block B of more php code e.g 'test return code'
>
> i.e. after udogen.cmd has run control returns to block B with a return
> code.
> This would work?
---
Folks, I am told it's a bad idea (often:().
Calling other pgms takes too much time before a response gets sent to
the user - is that one of the reasons? What might other reasons be?
Jerry you say there are differences with CICS - in brief form can you
tell me what?
I really appreciate all that's being said here - my thanks.
Jerry, CP - since you're CICS'ies any chance I could contact you
offline - am preparing a little bit of psuedocode that I hope
illustrates what am trying to do - assuming you have time to look it
over?
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