You definately want to use the 'has_a' relationship for this.

* Using a has_a relationship for 'password' and a custom EncryptedPassword class. I can't get this to work properly though. When using create() the class is 'inflated' using the plaintext password, otherwise it is called with the encrypted password and I am not sure how to tell how the constructor for the custom class was called.

The trick with using a 'has_a' object with the 'create' method is that Class::DBI will expect you to pass an object for the 'password' column when calling 'create'. Since you are passing a string, it thinks it needs to inflate your string first which means it tries to decrypt the string you have passed in.

If you want to be able to provide a plain text string to 'create' and still use the has_a relationship with the password field, then you will have to write an 'inflate' method that can distinguish between the plaintext and encrypted formats and 'do the right thing' (ie if it sees plaintext, leave it alone, and if it sees encrypted data, decrypt it.

See this node for some info on how you can do this with Dates. It doesn't apply directly, but it might give you some more insight...

Good luck in learning about Class::DBI. You won't regret the move

- Cees

In reply to Re: Class::DBI - performing action on column before it is used or saved by cees
in thread Class::DBI - performing action on column before it is used or saved by duct_tape

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.