Hale - Content Provider Test

package com.andreww.hale;

import android.content.ContentProvider;
import android.content.ContentValues;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.net.Uri;
import android.util.Log;


public class FoodEntryProvider extends ContentProvider {

    private SQLiteOpenHelper mOpenHelper;
    private static final String DBNAME = "hale";
    private static final String TABLE_FOOD = "food_entries";
    private SQLiteDatabase db;

    @Override
    public boolean onCreate() {
        mOpenHelper = new SQLiteOpenHelper(getContext(), DBNAME, null, Hale.DATABASE_VERSION) {
            @Override
            public void onCreate(SQLiteDatabase db) { }
            @Override
            public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
                if(newVersion <= oldVersion) {
                    return;
                }
                Log.i("FoodEntryProvider", "Upgrading database from version " + oldVersion +
                        " to " + newVersion + ", which will destroy all old data");
                db.execSQL("DROP TABLE IF EXISTS " + TABLE_FOOD);
            }
        };
        db = mOpenHelper.getWritableDatabase();
        db.execSQL("CREATE TABLE IF NOT EXISTS " + TABLE_FOOD + "(" +
                        "food TEXT," +
                        "calories INTEGER," +
                        "protein INTEGER," +
                        "sugar INTEGER," +
                        "date INTEGER);");
        return true;
    }

    @Override
    public String getType(Uri uri) {
        return null;
    }

    @Override
    public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
        return db.query(TABLE_FOOD, projection, selection, selectionArgs, null, null, sortOrder);
    }

    @Override
    public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
        return db.update(TABLE_FOOD, values, selection, selectionArgs);
    }

    @Override
    public Uri insert(Uri uri, ContentValues values) {
        db.insert(TABLE_FOOD, null, values);
        return null;
    }

    @Override
    public int delete(Uri uri, String selection, String[] selectionArgs) {
        return db.delete(TABLE_FOOD, selection, selectionArgs);
    }
}