Validation for image size

alf007

I found a function that gives you the size of an image. Width and Height. This function is getimagesize. I want to integrate a validation using this function

->validator( function ( $file ) {
                   $size = getimagesize($file);
                    return $size[0] <= 300 && $size[1] <=450 ?
                        "The size must be 300 width and 450 height." :
                        null;
                } )

It's this the correct way to do it?

allan

Assuming that validator is attached to an Upload instance, then yes, that looks valid and correct.

Custom validation documentation for uploading files is available in the manual (you probably know that given the above code, but just linking for anyone else who reads this post!).

Allan

alf007

Thanks for the replay. I changed my code as follows:

->validator( function ( $file ) {
                   $size = getimagesize($file['name']);
                    return $size[0] <= 300 && $size[1] <=450 ?
                        "The size must be 300 width and 450 height." :
                        null;
                } )

But I got a new error:

Warning: getimagesize(WIN_20151008_13_58_09_Pro.jpg): failed to open stream: No such file or directory

It seems to me that the function needs the correct location. Where does the Upload function put the file before it uploads it?

Here is what I need to make it work. The path needs to be set in the function in order to read the width and the height.

getimagesize('path_to_image');

allan

Try using $file['tmp_name']. THe PHP manual has details on this property.

Allan

alf007

It worked!

I will share the code.

->validator( function ( $file ) {
                   $size = getimagesize($file['tmp_name']);
                    return $size[0] > 300 && $size[1] > 450 ?
                        "The size must be 300 width and 450 height." :
                        null;
                } )

dataB

After validating the height/width how can those values be stored in separate database columns? I've tried using db() but without success.

allan

You would indeed using the db() method with a closure function (see option 3 of option 3!). That function would return the value required.

Allan