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Thread: Request.Variables not found

  1. #1
    Member
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    Ezra Wise
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    Default Request.Variables not found

    I have two dialog components, each submitting to a SQL DB. Each one has "After Validate" code similar to the following:

    Code:
    	if eval_valid("Request.Variables.project_id") then
    		t.project_id = convert_type(Request.Variables.project_id, "n")
    	else
    		t.project_id = 0
    	end if
    In one case the Request.Variables.project_id variable is found and set properly. In the other, no such luck.

    The URL for the one not working is:
    http://localhost/add_assnResource.a5...&task_id=10028

    Any reason why Request.Variables.project_id wouldn't be found using this URL?

  2. #2
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    Ezra Wise
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    Default Re: Request.Variables not found

    ... and that's why I'll stop at the end of the trial period. Thanks anyway!

  3. #3
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    Default Re: Request.Variables not found

    Quote Originally Posted by ezwise View Post
    ... and that's why I'll stop at the end of the trial period. Thanks anyway!
    Or you can provide the source for the dialogs so we can see what was built rather than just pointing us to the representation that results.

    Most questions that are unanswered for more than a day are from lack of information from the questioner......

    Sorry you didn't get someone to point that out before....
    Al Buchholz
    Bookwood Systems, LTD
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    Occam's Razor - KISS
    Normalize till it hurts - De-normalize till it works.
    Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
    When we triage a problem it is much easier to read sample systems than to read a mind.

  4. #4
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    Ezra Wise
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    Default Re: Request.Variables not found

    Thanks for the kick, Al.

    Since the trial elapsed I no longer have access to the source, and I'm not sure that I want to buy just to get to it. I can assure you that it's straightforward (using dialog fields to submit to a linked SQL database table - "t" in my example)

    Since the URL contains "...?project_id=<some_num>&task_id=<some_other_num>" I can't figure out why a reference to 'Request.Variables.project_id' wouldn't be found. Both project_id and task_id should be "get" parameters, which should be included in the Request.Variables array (according to the documentation).

    Any reason this wouldn't be so?

  5. #5
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    Default Re: Request.Variables not found

    Quote Originally Posted by ezwise View Post
    Thanks for the kick, Al.

    Since the trial elapsed I no longer have access to the source, and I'm not sure that I want to buy just to get to it. I can assure you that it's straightforward (using dialog fields to submit to a linked SQL database table - "t" in my example)

    Since the URL contains "...?project_id=<some_num>&task_id=<some_other_num>" I can't figure out why a reference to 'Request.Variables.project_id' wouldn't be found. Both project_id and task_id should be "get" parameters, which should be included in the Request.Variables array (according to the documentation).

    Any reason this wouldn't be so?
    Actually with at the windows level, you can zip up the folder with the database and projects in it and attach it here, or send it to someone else.

    I'm getting too old to guess and nothing is hitting me in the head as an idea.....
    Al Buchholz
    Bookwood Systems, LTD
    Weekly QReportBuilder Webinars Thursday 1 pm CST

    Occam's Razor - KISS
    Normalize till it hurts - De-normalize till it works.
    Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
    When we triage a problem it is much easier to read sample systems than to read a mind.

  6. #6
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    Ezra Wise
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    Default Re: Request.Variables not found

    Fair enough. I had to selectively remove files from the archive to come in under the 5 MB max. I think everything I removed pertained to the Web Apps Demo project. My project was called "Scheduler".

  7. #7
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    Ezra Wise
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    Default Re: Request.Variables not found

    I guess it would help to provide the dialog names in question :o

    - dlg_new_task.a5wcmp (afterValidate works for request.variables.project_id)
    - dlg_new_assnResource.a5wcmp (afterValidate throws error for request.variables.project_id)

    You can nav from "projects.a5w" to select an existing project >> an existing task >> then click "Add Resource" (or something comparable) link to bring up the dialog.

  8. #8
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    Default Re: Request.Variables not found

    Ezra

    Is there a reason that you are using request instead of session? I noticed that Steve Wood mentioned that you should use session in this post?


    Note this line from the help system for request variable.

    Note : Request variables are local to the page (script) and must be passed to any functions defined on the page.
    Al Buchholz
    Bookwood Systems, LTD
    Weekly QReportBuilder Webinars Thursday 1 pm CST

    Occam's Razor - KISS
    Normalize till it hurts - De-normalize till it works.
    Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
    When we triage a problem it is much easier to read sample systems than to read a mind.

  9. #9
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    Ezra Wise
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    Default Re: Request.Variables not found

    Is there a reason that you are using request instead of session?
    Overhead. I was trying to keep this test app simple.

    I noticed that Steve Wood mentioned that you should use session in this post?
    His comment deals with getting data values from a populated grid component. I'm using a dialog in this case and, again, trying to avoid sessions.

    Note this line from the help system for request variable.

    Note : Request variables are local to the page (script) and must be passed to any functions defined on the page.
    Saw that. Not sure how to "pass" in this context. Also, I'm not doing anything different/special on the one that works than the one that doesn't. Hence most of my confustigation.

    I'm evaluating Alpha 5 more than anything. This situation makes me hesitant becasue I'm guessing that the fix is trivial due to my inexperience working with the tool. However, the lack of debug tools or other utilities makes me question whether or not using A5 will truly be a time saver. I might be better off biting the bullet and building php classes.
    Last edited by ezwise; 12-05-2008 at 01:17 PM. Reason: Incomplete post

  10. #10
    Volunteer Moderator
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    Default Re: Request.Variables not found

    Quote Originally Posted by ezwise View Post
    Overhead. I was trying to keep this test app simple.

    His comment deals with getting data values from a populated grid component. I'm using a dialog in this case and, again, trying to avoid sessions.
    Your ideas are colliding... The simple way to do this is with session variables.

    I don't think sessions will add sufficient overhead for you to pay for the swimming upstream that you are doing...
    Al Buchholz
    Bookwood Systems, LTD
    Weekly QReportBuilder Webinars Thursday 1 pm CST

    Occam's Razor - KISS
    Normalize till it hurts - De-normalize till it works.
    Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
    When we triage a problem it is much easier to read sample systems than to read a mind.

  11. #11
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    Ezra Wise
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    Default Re: Request.Variables not found

    Thank you for your suggestions.

  12. #12
    Volunteer Moderator Steve Wood's Avatar
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    Default Re: Request.Variables not found

    Its hard to follow the app in your download since it work directly against the (missing) SQL database. I see where you are putting in the request variables. Although I can't quite follow, I can say request variables only exist if they are provided to the web page at the time the page is opened or refreshed in the browser. As a test, add the following xbasic to an A5W page:

    ?request.variables.test

    If you open the page in a browser, the page will give a 500 error. If you append ?test=steve in the URL, the page will display "steve". If you again refresh your browser, but first remove the ?test=steve, it will again issue a 500 browser error because the variable does not exist.

    So, in the case of a web component, when you click Submit (or any button that refreshes the page) if you do not AGAIN recreate that request variable, it will not exist, and asking for it will cause an error.
    Steve Wood
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