Problem accessing calling object members- please help

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  1. #1
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    Problem accessing calling object members- please help

    Hello,

    I have a problem that seemed easy to me at first, but now I cannot find a way to solve it. I have Object1 that establishes a database connection in its constructor. In one of Objects1 methods I create Object2.
    I want to access a database connection (established by Object1) in Objects2 constructor. Is this possible (I have to use Objects1 variable)?? How can I solve that?

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    Make object2 take a db connection type in its constructor, assuming there is a handle of some sort to the database created in object1.

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    Hmm, don't know why but I get a crash when I try to use pointer (handle) to database. Can database be used simultaneously in object1 in 2 with the same handle?

    I am also thinking of a different approach. I can declare object1 as parent of object2. Can I then somehow access parents variables? If yes, how?

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    If it crashes when you try to use the same pointer, you are probably doing something else wrong than violating some rule about the use of the database - perhaps you have freed the original pointer and keeping a copy, or overwritten the data the pointer points at?

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    Please don't PM me for help - and no, I don't do help over instant messengers.

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    Sorry, crash was caused by typo in a program. Now it is working! Thank you!

    So now I must pass handle to database to all functions in object2, that need it, right?

  6. #6
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    Quote Originally Posted by Tiansen View Post
    Sorry, crash was caused by typo in a program. Now it is working! Thank you!

    So now I must pass handle to database to all functions in object2, that need it, right?
    Or you could make Object2 hold a handle in the class itself.

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

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    Yes, I must do that, because else I have troubles. How can I do that?

    I owe you a beer

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    I think I figured it out. I make a variable (pointer2) in object2 and then make pointer2=pointer1 and it works.

    Thank you all for help!

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