Hello,
I would like to display a random image each time a page is
refreshed. I think my random function works, but the image does
not appear on the page. I have this template:
```
/public
/images
/rndimg
img1.jpg
img2.jpg
img3.jpg
/source
app.d
/views
index.dt
```
index.dt:
```
doctype html
html(lang="en")
head
meta(charset="UTF-8")
meta(name="viewport", content="width=device-width,
initial-scale=1.0")
meta(http-equiv="X-UA-Compatible", content="ie=edge")
title Document
body
img(src='#{rndimg}')
```
And the code itself is:
```
import vibe.vibe;
void main()
{
auto settings = new HTTPServerSettings;
settings.port = 8080;
settings.bindAddresses = ["::1", "127.0.0.1"];
auto listener = listenHTTP(settings, &index);
scope (exit)
listener.stopListening();
logInfo("Please open http://127.0.0.1:8080/ in your browser.");
runApplication();
}
/// The index page
void index(HTTPServerRequest req, HTTPServerResponse res)
{
import std.random;
import std.format;
auto rnd = Random(unpredictableSeed);
auto a = uniform(1, 3, rnd);
const auto rndimg = format("images/rndimg/img%d.jpg", a);
res.render!("index.dt", req, rndimg);
}
```
I don't understand why the image doesn't display, when I take an
image from the internet and give the url, it works fine though.
Also, is this a good way to randomly display an image or is there
a way that is maybe cleaner/efficient?
Thank you.
