The do thumbnail at loading suggestion is great -- it may seem like a small task to generate the thumbnails dynamically but it always turns out that it is the straw that breaks the camels back when the site gets busy. The two ways I do it (they have different advantages and weaknesses) are: 1: as images are uploaded generate the thumbnails needed (usually in my case a few different sizes for different views). 2: Allow uploads to happen without creating thumbnails, but on first access to each type of thumbnail generate and cache it.

The first way works better when the addition of images to a site are controlled only by your app -- such as with a cgi form. The second works well when users can place images in a directory structure or in some other way to insert into the site without your app knowing about them.


-Waswas

In reply to Re^2: reading all images in a directory by waswas-fng
in thread reading all images in a directory by Anonymous Monk

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.