Связать базу данных с RecyclerView

package com.starikov.tester;
 
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
 
 
public class PizzaMaterialFragment extends Fragment {
 
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
 
        RecyclerView pizzaRecycler = (RecyclerView)inflater.inflate(R.layout.fragment_pizza_material, container, false);
 
        int[] pizzaImages = new int[Pizza.pizzas.length];
        for (int i = 0; i < pizzaImages.length; i++){
            pizzaImages[i] = Pizza.pizzas[i].getImageResourceId();
        }
 
        CaptionedImagesAdapter adapter = new CaptionedImagesAdapter(pizzaImages);
        pizzaRecycler.setAdapter(adapter);
        LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
        pizzaRecycler.setLayoutManager(layoutManager);
        return pizzaRecycler;
    }
}

package com.starikov.tester;
 
public class Pizza {
 
    private int imageResourceId;
 
    public static final Pizza[] pizzas = {
            new Pizza(R.drawable.formul_electricheskii_zaryad_ydra_atoma),
            new Pizza(R.drawable.formul_simvol_himicheskogo_elementa),
            new Pizza(R.drawable.formul_energia_svyzi_yadra),
            new Pizza(R.drawable.formul_massovoe_chislo),
            new Pizza(R.drawable.formul_defekt_mass)
    };
 
    private Pizza(int imageResourceId) {
        this.imageResourceId = imageResourceId;
    }
 
    public int getImageResourceId() {
        return imageResourceId;
    }
}

package com.starikov.tester;
 
 
import android.graphics.drawable.Drawable;
import android.support.v7.widget.CardView;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.ViewGroup;
import android.widget.ImageView;
 
class CaptionedImagesAdapter extends RecyclerView.Adapter<CaptionedImagesAdapter.ViewHolder> {
 
    private int[] imageIds;
 
    public static class ViewHolder extends RecyclerView.ViewHolder{
        private CardView cardView;
        public ViewHolder(CardView v){
            super(v);
            cardView = v;
        }
    }
 
    public CaptionedImagesAdapter(int[] imageIds){
        this.imageIds = imageIds;
    }
 
    @Override
    public CaptionedImagesAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        CardView cv = (CardView) LayoutInflater.from(parent.getContext()).inflate(R.layout.card_view, parent, false);
        return new ViewHolder(cv);
    }
 
    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        CardView cardView = holder.cardView;
        ImageView imageView = (ImageView) cardView.findViewById(R.id.info_image);
        Drawable drawable = cardView.getResources().getDrawable(imageIds[position]);
        imageView.setImageDrawable(drawable);
    }
 
    @Override
    public int getItemCount() {
        return imageIds.length;
    }
}

package com.starikov.tester;
 
import android.content.ContentValues;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
 
public class PizzaDatabaseHelper extends SQLiteOpenHelper{
 
    private static final String DB_NAME = "pizza";
    private static final int DB_VERSION = 1;
 
    PizzaDatabaseHelper(Context context){
        super(context, DB_NAME, null, DB_VERSION);
    }
 
    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL("CREATE TABLE FORMULS ("
                + "_id INTEGER PRIMARY KEY AUTOINCREMENT, "
                + "IMAGE_RESOURCE_ID INTEGER);");
        insertFormul(db, R.drawable.formul_electricheskii_zaryad_ydra_atoma);
        insertFormul(db, R.drawable.formul_simvol_himicheskogo_elementa);
        insertFormul(db, R.drawable.formul_energia_svyzi_yadra);
        insertFormul(db, R.drawable.formul_massovoe_chislo);
        insertFormul(db, R.drawable.formul_defekt_mass);
    }
 
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldV, int newV) {
    }
 
    private static void insertFormul(SQLiteDatabase db, int resourceId){
        ContentValues formulValues = new ContentValues();
        formulValues.put("IMAGE_RESOURCE_ID", resourceId);
        db.insert("FORMULS", null, formulValues);
    }
}