"Take down" Image after Time Expires

[louisstephens]

So I have an odd feature to tackle. I want to include an image in the template (aka a header), but want to implement a function to set a time in the future. Once the time was met, the image will automatically come down (if possible switch to another image, but that is not something Ill worry about now). 

Now, I set up an image field "timed_image", and I set up the date/time field "select_timed_expire". I also know how to echo the information on the page, but where I am finding issue is actually how to implement this. I could use javascript and pass the date/time to it, but from there I am quite lost on how to implement this.

Has anyone done something like this before?

[renobird]

Something like this?

$now = date("Y-m-d h:i:s");
$expires = $page->select_timed_expire // assuming you set output format for this field to the same as $now.

if ($now < $expires){
      echo "<img src='{$page->timed_image->url}'/>";

} else {
     // do something else or nothing.
}

[Wanze]

Same solution as Reno, but I'd compare the timestamps and not date strings

$now = time();
$expires = strtotime($page->select_timed_expire); // If you have a date string as output format

[louisstephens]

Thank y'all so much. I believe I was def. overcomplicating things in my head. Ill give this a go and see where I end up. 

[renobird]

Wanze's way is the cleanest. I tend to do date strings for these kinds of things because sometimes I want to expire things on the day, or on a specific hour — rarely at the exact second.

[renobird]

If you want to cycle to the next image after the expiration, you can use a multi-image field and show the first image until the expiration date, and then move on to the second image.

$now = date("Y-m-d h:i:s");
$expires = $page->select_timed_expire // assuming you set output format for this field to the same as $now.
$url = $page->timed_image->first()->url; // default to first image

// if it's past the expiration, get the 2nd image. 0 based index, so 1 is 2nd image.
if ($now > $expires) $url = $page->timed_image->eq(1)->url; 

echo "<img src='$url'/>"; 

[louisstephens]

I had just found out about using first();. but had a quick question. Most of the pages will have the default single image as the header, but once in awhile I will need to run a different image in its' place (set to expire). Will the above example cause an issue on the pages that only have the one image and nothing before it in the array?

[renobird]

You would just need to check if there is an expiration set, if there isn't, then just stick with the first image. If there is an expiration set, then check the dates and respond accordingly.

untested, written in browser.

$url = $page->timed_image->first()->url; // default to first image, make sure your image field is set to multiple.
$expires = $page->select_timed_expire // assuming you set output format for this field to the same as $now.

if ($expires){
    if (date("Y-m-d h:i:s") > $expires){
        $url = $page->timed_image->eq(1)->url; // if it's past the expiration, get the 2nd image.
    }
}

echo "<img src='$url'/>"; 

[louisstephens]

Thanks Renobird. I meant to reply earlier, but got lost in repeaters and various other field types. That did the trick.