package com.sunvote.xpadapp.db;


import android.database.sqlite.SQLiteDatabase;

import com.sunvote.util.LogUtil;

import java.io.File;

/**
 * 人大通用版XPadAppRD重构
 */
public class DBHelper {

	// 得到SD卡路径
	private final String DATABASE_PATH = android.os.Environment.getExternalStorageDirectory().getAbsolutePath()  + File.separator + "sunvote" + File.separator;
			
	private final String DATABASE_FILENAME = "Meeting.db";

	private int mId;
	public DBHelper(int meetingId) {
		mId = meetingId;
	}

	// 得到操作数据库的对象
	public SQLiteDatabase openDatabase(int confId) {
		try {
			boolean b = false;
			mId = confId;
			if(confId == 0){
				LogUtil.e("DBHelper", "openDatabase with Error confid 0");
				return null;
			}
			// 得到数据库的完整路径名
			String databaseFilename = DATABASE_PATH + mId + "/" + DATABASE_FILENAME;
			if (!(new File(databaseFilename)).exists()) {
				LogUtil.e("DBHelper", "db not exists");
			}
			SQLiteDatabase database = SQLiteDatabase.openOrCreateDatabase(databaseFilename, null);
			return database;
		} catch (Exception e) {
			LogUtil.e("DBHelper",e);
		}
		return null;
	}
}