GaspSQLiteHelper.java

/*
 * Copyright (c) 2013 Mark Prichard
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.appdynamics.demo.gasp.adapter;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;

class GaspSQLiteHelper extends SQLiteOpenHelper {
    private static final String TAG = GaspSQLiteHelper.class.getName();

    public static final String REVIEWS_COLUMN_ID = "id";
    public static final String REVIEWS_COLUMN_RESTAURANT_ID = "restaurant_id";
    public static final String REVIEWS_COLUMN_USER_ID = "user_id";
    public static final String REVIEWS_COLUMN_COMMENT = "comment";
    public static final String REVIEWS_COLUMN_STAR = "star";

    public static final String USERS_COLUMN_ID = "id";
    public static final String USERS_COLUMN_NAME = "name";

    public static final String RESTAURANTS_COLUMN_ID = "id";
    public static final String RESTAURANTS_COLUMN_NAME = "name";
    public static final String RESTAURANTS_COLUMN_WEBSITE = "website";
    public static final String RESTAURANTS_COLUMN_PLACESID = "placesId";

    public static final String REVIEWS_TABLE = "reviews";
    public static final String RESTAURANTS_TABLE = "restaurants";
    public static final String USERS_TABLE = "users";

    private static final String DATABASE_NAME = "gasp.db";
    private static final int DATABASE_VERSION = 1;

    // SQL statements to create a new database.
    private static final String CREATE_REVIEWS_TABLE = "create table " +
            REVIEWS_TABLE + " (" +
            REVIEWS_COLUMN_ID + " integer primary key, " +
            REVIEWS_COLUMN_USER_ID + " integer not null, " +
            REVIEWS_COLUMN_RESTAURANT_ID + " integer not null, " +
            REVIEWS_COLUMN_COMMENT + " string, " +
            REVIEWS_COLUMN_STAR + " integer not null);";

    private static final String CREATE_RESTAURANTS_TABLE = "create table " +
            RESTAURANTS_TABLE + " (" +
            RESTAURANTS_COLUMN_ID + " integer primary key, " +
            RESTAURANTS_COLUMN_NAME + " string, " +
            RESTAURANTS_COLUMN_PLACESID + " string, " +
            RESTAURANTS_COLUMN_WEBSITE + " string);";

    private static final String CREATE_USERS_TABLE = "create table " +
            USERS_TABLE + " (" +
            USERS_COLUMN_ID + " integer primary key, " +
            USERS_COLUMN_NAME + " string not null);";

    public GaspSQLiteHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase database) {
        database.execSQL(CREATE_RESTAURANTS_TABLE);
        database.execSQL(CREATE_REVIEWS_TABLE);
        database.execSQL(CREATE_USERS_TABLE);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        Log.w(TAG, "Upgrading database from version " + oldVersion + " to "
                + newVersion + ", which will destroy all old data");
        db.execSQL("DROP TABLE IF EXISTS " + RESTAURANTS_TABLE);
        db.execSQL("DROP TABLE IF EXISTS " + REVIEWS_TABLE);
        db.execSQL("DROP TABLE IF EXISTS " + USERS_TABLE);
        onCreate(db);
    }

}