Connect to DB through Vagrant using RubyMine

I just started working on a ruby project which is set up through Vagrant. I've successfully gotten a remote interpreter working but I'm having trouble connecting to databases.

Here's my Vagrantfile:

# This Vagrantfile is for development use only.
VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.box = "markusproject/ubuntu"

  # Allow instance to see project folder.
  # Warning: This may cause problems with your Vagrant box!
  #          Enable at your own risk.
  # config.vm.synced_folder ".", "/home/vagrant/Markus"

  # Access the server running on port 3000 on the host on port 42069.
  # config.vm.network "forwarded_port", guest: 3000, host: 42069
  config.vm.network :private_network, ip: '192.168.50.50'
  config.vm.synced_folder '.', '/home/vagrant/Markus', nfs: true

  config.vm.provider "virtualbox" do |vb|
    # Uncomment the following line if you want a GUI.
    # vb.gui = true
    vb.name = "markus"
  end
end

I've set up the VM to use NFS. Here's the output of vagrant ssh-config:

Host default
  HostName 127.0.0.1
  User vagrant
  Port 2222
  UserKnownHostsFile /dev/null
  StrictHostKeyChecking no
  PasswordAuthentication no
  IdentityFile /Users/paymahn/.vagrant.d/insecure_private_key
  IdentitiesOnly yes
  LogLevel FATAL

I've left the defaults for the Database connection but have tried several variations on setting up an SSH Tunnel for the connection.

These variations include:

setting Proxy Host to 127.0.0.1
setting Port to 2222
setting the proxy host to 192.168.50.50
setting Port to 22

All of the variations have resulted in a failed connection when I test the connection. Any help on getting this config set up would be greatly appreciated!

Well...I figured it out thanks to this guy.

Here's how the final dialogs look like: