in reply to RE: RE: RE: RE: Re: Inputing info into Nested Arrays
in thread Inputing info into Nested Arrays

Basically, I need to read in a text file and have each projects information put into an array. I later need to be able to easily call up a project with a certain ID number and have the information displayed in an html file and then also make it accesible to be updated.

I'm hoping for an easier way then having to write something to compare an inputed project ID number to a row in the format previously shown.

e.g. I don't want for project 35 to have to call up $array34,0, $array34,1, $array34,2, etc.

This has to be easily usable for non tech people and take an unknown number of projects(up to 100)

She-wolf
"Wha? I don't get it."

  • Comment on RE: RE: RE: RE: RE: Re: Inputing info into Nested Arrays

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RE: RE: RE: RE: RE: RE: Re: Inputing info into Nested Arrays
by merlyn (Sage) on Aug 21, 2000 at 21:08 UTC
    Unless you intend on reparsing the "text file" on each CGI hit, you'll probably want a real database for this. And again, what would the text file look like, ideally?

    -- Randal L. Schwartz, Perl hacker

RE: RE: RE: RE: RE: RE: Re: Inputing info into Nested Arrays
by MadraghRua (Vicar) on Aug 21, 2000 at 22:56 UTC
    She-Wolf

    Try this URL: A HREF = "http://webreview.com/pub/98/10/23/perl/index.html">http://webreview.com/pub/98/10/23/perl/index.html

    It's an online, text based database that you can download and reconfigure fairly easily. The text is tab delimited. You can search on the various fields. If necessary, you can have links between different text databases, simply by setting up the appropriate CGI scripts.

    Individual records are parsed into an array, whose elements can be printed into a table individually (eg some as plain text, some as hyperlinks).

    I've used it in the past, so I'm reasonably familiar with it if you want to use it. It would at least give you an idea as to where to start.

    MadraghRua
    yet another biologist hacking perl....

      I'm just curious as to whether or not you've found his use of reserved words for variables a problem when using this program.

      Also, I was just wondering if you've had any problems using this application.

      She-wolf
      "Wha? I don't get it."

        The function reserved_word is different to $reserved_word and @reserved_word. The use of $, @, or % means that they don't conflict with reserved words. What you do have to watch out for are conflicts with nonvariable identifiers such as labels and filehandles. Usually these last two are all in UpperCase, as in his script.

        If you are truly uncomfortable and want to avoid using reserved words in variable names, you could simply globally change the variable names.

        No, the script worked pretty much straight out of the box. What did cause some amusement was forgetting to include all the pipes in the text delimited file - that one caused a deal of amusement until it was caught.

        The only other thing that caused some difficulty was using the GUI front end to load and edit data - this was sometimes very slow and I'm not sure why, perhaps something to do with the file locking mechanism.

        MadraghRua
        yet another biologist hacking perl....

      Have you had a problem with:
      Can't find string terminator "HTML" anywhere before EOF at database.cgi line 135. ?

      She-wolf
      "Wha? I don't get it."

        You must be using a heredoc and not be properly ending it.

        print<<HTML; Your HTML HTML

        Cheers,
        KM

        Actually, no I haven't. Could you please send me the top part of your database file and I'll look at it on my own system. This will probably be a bit faster. Just make sure that you include your header fields...

        kpclancy@hotmail.com

        MadraghRua
        yet another biologist hacking perl....

        Two other questions - what is your OS and what version of Perl are you using? If you're using Windows, which one and what type of perl - ActiveState?

        MadraghRua
        yet another biologist hacking perl....

RE (tilly) 7: Inputing info into Nested Arrays
by tilly (Archbishop) on Aug 21, 2000 at 21:28 UTC
    I agree with merlyn that a database scales better. But still take a look at the default output of Data::Dumper and see whether that is a sufficiently readable text format for your purposes.

    (I admit to having done that once or twice. :-)