package com.coolweather.app.db;

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

/**
 * Created by xz on 2016/2/10.
 */
public class CoolWeatherOpenHelper extends SQLiteOpenHelper {
    //Province表建表语句
    public  static final String CREATE_PROVINCE="create table Province ("
            +"id integer primary key autoincrement,"
            +"province_name text,"
            +"province_code text)";
    public  static final String CREATE_CITY="create table City ("
            +"id integer primary key autoincrement,"
            +"city_name text,"
            +"city_code text,"
            +"province_id integer)";
    public  static final String CREATE_COUNTY="create table County ("
            +"id integer primary key autoincrement,"
            +"county_name text,"
            +"county_code text,"
            +"city_id integer)";
    public CoolWeatherOpenHelper(Context context,String name,SQLiteDatabase.CursorFactory
                                 factory,int version){
        super(context, name, factory, version);
    }
    @Override
    public void onCreate(SQLiteDatabase db) {
       db.execSQL(CREATE_PROVINCE); //创建Province表
        db.execSQL(CREATE_CITY);
        db.execSQL(CREATE_COUNTY);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

    }
}
