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Query Problem

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  • Query Problem

    I'm trying to use a function that creates a query based on criteria fed to it by the user making selections (different selections based on which form the user is using), but I keep getting a "no such field" error and can't figure out what I'm doing wrong. The query expression that is being created is:

    "(Item_labor->Standard=.f.).AND.(Item_labor->Group_No='08').AND.(Item_Labor->Cat_No='102')"

    That expression is passed to the function as filtername (a character string) and is used in building the query in this line:

    query.filter=filtername

    But that usually gives an error message: "no such field" (not always). If I actually type the expression in the function, i.e.

    query.filter="(Item_labor->Standard=.f.).AND.(Item_labor->Group_No='08').AND.(Item_Labor->Cat_No='102')"

    ...it works fine. It's only when it's passed in as a character string that it doesn't work. But I need to pass it in as a character string, so does anybody have a clue as to what I'm doing wrong?

    Thanks.

  • #2
    RE: Query Problem

    Hello Kevin,

    I don't see any problem with the string. Sounds like you may have a scope or context issue. You say you are building a function to create the filter string?

    Are you running the t.query_create() within the function or from the calling script? The scope of the function is not the same as the calling script.

    Can't really think of anything else. If you posted the entire routine, and how its called, it might shed some light.

    Good luck,
    Jim

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    • #3
      RE: Query Problem

      Hi Jim,

      Thanks for the help. I tried simplifying the process in order to post the routine since there are a number of different functions involved in the application that would make posting the whole thing too difficult, but when I narrowed it down to just the basics that would be needed to view the problem, the problem disappeared, so there has to be something in there that I'm just missing. Guess I'm on my own on this one. Thanks though for the suggestions.

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      • #4
        RE: Query Problem

        Kevin, You might check the scope of 'filtername' and then verify that it's getting stored correctly in query.filter.

        Maybe

        eval(filtername) ???

        -- tom

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