Apple Walnut Raisin Cake

4 cups chopped apples

2 cups flour

1 cup brown sugar

1 cup white sugar

1 teaspoon baking soda

1 teaspoon vanilla

2 teaspoons cinnamon

3/4 teaspoon salt

1/2 cup vegetable oil

1 cup chopped walnuts

1/2 cup raisins (soaked in warm water for 15 minutes to soften)

2 eggs