Dream Dede List Call the first picture of the Atlas the original address (not thumbnail) _dede

We often encounter a list page or a content page to call a picture instead of a thumbnail when using a Dede picture set, so what happens when you run into a problem like this? Today we're going to share a solution:

Step One:
Modify include/extend.func.php

Add the following code:

Take the first picture address
function firstimg ($str _pic)
{
$str _sub=substr ($str _pic,0,-7). " JPG//delete the last seven digits of the thumbnail string, and then the suffix. jpg
return $STR _sub;
}
Step Two: Write the call tag directly inside the Dede template

And then loop through the template:

Use in list: [Field:litpic function=firstimg (' @me ')/]
Use in content pages: {dede:field name= ' litpic ' function= ' firstimg (@me) '/}

The modification method has a disadvantage: the upload of the image must be JPG format, the dead format a bit of trouble.