Recommended way to check if the value of a field is an image or not?

[saml]

I'm creating a general function for batch import, for a site migration, and while looping through fields (field names) to be imported for a page, I need to check whether the field is an image (or other file type), so that it can be imported after the first pave save.

What would be the recommended way to check this, with PHP code?

[saml]

Well, I managed to solve this now by just saving the page twice: Once before populating the page's fields, and once after.

[BitPoet]

That's one solution, the other would have been to determine the field type through the page's template.

$tpl = wire('templates')->get($templatename);
if( $tpl->fields->get($fieldname)->type instanceof FieldtypeFile ) { /* true for file and image field types, import as file */ }