When I first saw this class I thought okay and then I start thinking is this a joke class? then after playing for a while I noticed there was a digging mechanic in the game so does a Farmer class have any effect on the digging and is there farming in this game? I would like infinite food please.

This really depends on how you're playing the game. If you avoid combat to progress through the game more quickly or because you find certain fights simply too difficult, a farmer may level a bit faster. But if you kill almost everything you come across, your other characters will level considerably faster. By the end of the game, my farmer was 2 levels behind my second slowest character (bear in mind that experience required to level increases exponentially.. he was level 12 with 93k xp whereas my level 14 rat alchemist had 197k xp). And I had been putting the +25% experience amulet on him every time I fed him for about 2/3rds of the game.

Something that might make it possible for a farmer to level faster would be to feed him any excess food you find, regardless of the nutrition limits. However, doing that might really hurt you in the long run. Towards the end of the game I was struggling to find enough food to keep my party fed. There are a few dungeons of considerable size that provide you with hardly enough food to survive. And if you take your time to search for secrets, you'll be using up a lot (and I didn't even rest much). I'd pretty much caught all the fish in the river and regularly had to resort to hunting in areas that provided 1-3 respawns of enemies that had a chance of dropping some food items (turtles, wargs, toads and giant snakes, mostly). And it seemed to take progressively longer for them to come back after each time I killed them.

Farmers might make a MUCH better party member in custom dungeons with ample amounts of food, but I found that having the class really didn't help me in any way compared to the other 3 characters in my party. What the class does accomplish is that it adds an interesting optional challenge to the game. Imagine playing the game with 4 farmers on ironman mode with single-use shrines. You'd have to be really amazing to be successful that way and it could be an interesting Let's Play idea..

Farmer is all about metagaming and he's more of a replay character. On a secondary playthrough, he really shines - first, you know how to rush a +25% experience amulet really quick (and not feed him that heavily before that). Second, you just need to know the pacing of the game and when to feed your farmer and when to save food for later. And, of course, in the repeating playthrough you don't spend as much time on the riddles so you don't need as much food. But he might really shine here - my farmer is 16 now while the rest of the party is 11, and we're not even in the stormbreach.

In terms of the skills, btw, farmers make excellent casters simply because they can be lvl 12 before you enter the Ruins of Desarune - so my farmer (called Lina Inverse, lol) had both meteor strike and frost shield ready. Wasn't fun for those pesky ice elementals.

I'm uncertain if this is a spam response or just a misguided reply to the thread. If the latter, maybe consider starting your own thread on the state of farming and agriculture in General Discussion instead of wrenching it into a thread concerned less about the real world and more about an in-game world and its mechanics.