DBManager.java
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package com.sunvote.xpadapp.db;
import java.util.ArrayList;
import com.sunvote.util.LogUtil;
import com.sunvote.xpadapp.db.modal.BillInfo;
import com.sunvote.xpadapp.db.modal.MeetingInfo;
import com.sunvote.xpadapp.db.modal.MultiTitleItem;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
public class DBManager {
private DBHelper helper;
private SQLiteDatabase db;
public int confId;
public static String TAG = "DBManager";
public boolean checkDB() {
if(db == null){
db = helper.openDatabase(confId);
}
return db != null;
}
public DBManager(Context context, int meetingid) {
helper = new DBHelper(context, meetingid);
confId = meetingid;
// 因为getWritableDatabase内部调用了mContext.openOrCreateDatabase(mName, 0,
// mFactory);
// 所以要确保context已初始化,我们可以把实例化DBManager的步骤放在Activity的onCreate里
db = helper.openDatabase(confId);
}
public int getKeypadRole(int keypadId){
int voterType = 0;
Cursor c = null;
try {
if(checkDB()) {
String sql = "SELECT * FROM Voters where KeypadID=" + keypadId;
c = db.rawQuery(sql, null);
while (c.moveToNext()) {
voterType = c.getInt(c.getColumnIndex("VoterType"));
break;
}
}
} catch (Exception e) {
LogUtil.e(TAG,e);
} finally {
if (c != null) {
c.close();
}
}
return voterType;
}
public int writeKeypadRole(int keypadId,int role){
int voterType = 0;
Cursor c = null;
try {
checkDB();
String sql = "UPDATE Voters set VoterType="+role+ " where KeypadID="+keypadId;
db.execSQL(sql);
} catch (Exception e) {
LogUtil.e(TAG,e);
} finally {
if (c != null) {
c.close();
}
}
return voterType;
}
public MeetingInfo getMettingInfo(int meetingId) {
MeetingInfo info = new MeetingInfo();
Cursor c = null;
try {
checkDB();
String sql = "SELECT * FROM Meeting";
c = db.rawQuery(sql, null);
while (c.moveToNext()) {
info.meetingID = confId;
info.meetingTitle = c.getString(c.getColumnIndex("MeetingTitle"));
info.meetingAddress = c.getString(c.getColumnIndex("MeetingAddress"));
info.meetingMember = c.getString(c.getColumnIndex("MeetingMember"));
info.meetingMemo = c.getString(c.getColumnIndex("MeetingMemo"));
break;
}
} catch (Exception e) {
LogUtil.e(TAG,e);
} finally {
if (c != null) {
c.close();
}
}
return info;
}
public BillInfo getBillInfo(int meetingId, int billId) {
BillInfo info = new BillInfo();
Cursor c = null;
confId = meetingId;
try {
checkDB();
String sql = "SELECT * FROM Bills WHERE BillID=" + billId;
c = db.rawQuery(sql, null);
while (c.moveToNext()) {
info.billId = c.getInt(c.getColumnIndex("BillID"));
info.billNo = c.getInt(c.getColumnIndex("BillNo"));
info.billType = c.getInt(c.getColumnIndex("BillType"));
info.subType = c.getInt(c.getColumnIndex("BillSubType"));
info.title = c.getString(c.getColumnIndex("BillTitle"));
info.memo = c.getString(c.getColumnIndex("BillMemo"));
info.billFile = c.getString(c.getColumnIndex("BillFile"));
info.billOptions = c.getString(c.getColumnIndex("BillPar"));
break;
}
} catch (Exception e) {
info = null;
LogUtil.e(TAG,e);
} finally {
if (c != null) {
c.close();
}
}
return info;
}
public ArrayList<BillInfo> getBillItems(int meetingId) {
ArrayList<BillInfo> titleList = new ArrayList<BillInfo>();
Cursor c = null;
confId = meetingId;
try {
checkDB();
String sql = "SELECT * FROM Bills";
c = db.rawQuery(sql, null);
while (c.moveToNext()) {
BillInfo it = new BillInfo();
it.billId = c.getInt(c.getColumnIndex("BillID"));
it.billNo = c.getInt(c.getColumnIndex("BillNo"));
it.title = c.getString(c.getColumnIndex("BillTitle"));
it.memo = c.getString(c.getColumnIndex("BillMemo"));
it.billFile = c.getString(c.getColumnIndex("BillFile"));
it.billType = c.getInt(c.getColumnIndex("BillType"));
titleList.add(it);
}
} catch (Exception e) {
LogUtil.e(TAG,e);
} finally {
if (c != null) {
c.close();
}
}
return titleList;
}
public ArrayList<BillInfo> getBillItemsMain(int meetingId) {
ArrayList<BillInfo> titleList = new ArrayList<BillInfo>();
Cursor c = null;
confId = meetingId;
try {
checkDB();
/**
* BillType = 0
* BillType = 20 批次表决
* BillType = 998 文档查看，不表决
* BillType = 999 具有子议案
*/
// String sql = "select * from Bills where ( BillType = 0 or BillType = 20) and (BillSubType is null or BillSubType = 0) or BillType = 999 or BillType = 998 ";
String sql = " select * from Bills where BillSubType is null or BillSubType = 0 order by BillNo ";
c = db.rawQuery(sql, null);
while (c.moveToNext()) {
BillInfo it = new BillInfo();
it.billId = c.getInt(c.getColumnIndex("BillID"));
it.billNo = c.getInt(c.getColumnIndex("BillNo"));
it.title = c.getString(c.getColumnIndex("BillTitle"));
it.memo = c.getString(c.getColumnIndex("BillMemo"));
it.billFile = c.getString(c.getColumnIndex("BillFile"));
it.billType = c.getInt(c.getColumnIndex("BillType"));
it.subType = c.getInt(c.getColumnIndex("BillSubType"));
titleList.add(it);
// break;
}
} catch (Exception e) {
LogUtil.e(TAG,e);
} finally {
if (c != null) {
c.close();
}
}
return titleList;
}
public ArrayList<BillInfo> getBillItemsMain(int meetingId,int billNo) {
ArrayList<BillInfo> titleList = new ArrayList<BillInfo>();
Cursor c = null;
confId = meetingId;
try {
checkDB();
/**
* BillType = 0
* BillType = 20 批次表决
* BillType = 998 文档查看，不表决
* BillType = 999 具有子议案
*/
String sql = "select * from Bills where BillType != 999 and BillNo = " + billNo + " order by BillNo";
c = db.rawQuery(sql, null);
while (c.moveToNext()) {
BillInfo it = new BillInfo();
it.billId = c.getInt(c.getColumnIndex("BillID"));
it.billNo = c.getInt(c.getColumnIndex("BillNo"));
it.title = c.getString(c.getColumnIndex("BillTitle"));
it.memo = c.getString(c.getColumnIndex("BillMemo"));
it.billFile = c.getString(c.getColumnIndex("BillFile"));
it.billType = c.getInt(c.getColumnIndex("BillType"));
it.subType = c.getInt(c.getColumnIndex("BillSubType"));
titleList.add(it);
}
} catch (Exception e) {
LogUtil.e(TAG,e);
} finally {
if (c != null) {
c.close();
}
}
return titleList;
}
public ArrayList<BillInfo> getSubBillItems(int meetingId, int billid) {
ArrayList<BillInfo> titleList = new ArrayList<BillInfo>();
Cursor c = null;
confId = meetingId;
try {
checkDB();
String sql = "SELECT * FROM SubBills WHERE BillID=" + billid + " ORDER BY SubBillNo";
c = db.rawQuery(sql, null);
while (c.moveToNext()) {
BillInfo it = new BillInfo();
it.billId = c.getInt(c.getColumnIndex("BillID"));
it.billNo = c.getInt(c.getColumnIndex("SubBillNo"));
it.title = c.getString(c.getColumnIndex("BillTitle"));
it.memo = c.getString(c.getColumnIndex("BillMemo"));
it.billFile = c.getString(c.getColumnIndex("BillFile"));
titleList.add(it);
}
} catch (Exception e) {
LogUtil.e(TAG,e);
} finally {
if (c != null) {
c.close();
}
}
return titleList;
}
public ArrayList<MultiTitleItem> getMultiTitleItems(int meetingId, int billid) {
ArrayList<MultiTitleItem> titleList = new ArrayList<MultiTitleItem>();
Cursor c = null;
confId = meetingId;
try {
checkDB();
String sql = "SELECT * FROM SubBills WHERE BillID=" + billid + " ORDER BY SubBillNo";
c = db.rawQuery(sql, null);
while (c.moveToNext()) {
MultiTitleItem it = new MultiTitleItem();
it.No = c.getInt(c.getColumnIndex("SubBillNo"));
it.title = c.getString(c.getColumnIndex("BillTitle"));
it.content = c.getString(c.getColumnIndex("BillMemo"));
it.file = c.getString(c.getColumnIndex("BillFile"));
it.startVote = false;
titleList.add(it);
// break;
}
} catch (Exception e) {
LogUtil.e(TAG,e);
} finally {
if (c != null) {
c.close();
}
}
return titleList;
}
public ArrayList<MultiTitleItem> getCandidateList(int meetingId, int billid) {
ArrayList<MultiTitleItem> titleList = new ArrayList<MultiTitleItem>();
Cursor c = null;
try {
confId = meetingId;
checkDB();
String sql = "SELECT * FROM Candidates WHERE BillID=" + billid + " ORDER BY CandidateNo ASC";
c = db.rawQuery(sql, null);
while (c.moveToNext()) {
MultiTitleItem it = new MultiTitleItem();
it.No = c.getInt(c.getColumnIndex("CandidateNo"));
it.title = c.getString(c.getColumnIndex("CandidateName"));
it.content = c.getString(c.getColumnIndex("CandidateMemo"));
it.file = c.getString(c.getColumnIndex("CandidateFile"));
it.startVote = false;
titleList.add(it);
}
} catch (Exception e) {
LogUtil.e(TAG,e);
} finally {
if (c != null) {
c.close();
}
}
return titleList;
}
public MultiTitleItem getCandidateNo(int meetingId, int candidateNo, int billid) {
MultiTitleItem titleList = new MultiTitleItem();
Cursor c = null;
try {
confId = meetingId;
checkDB();
String sql = "SELECT * FROM Candidates WHERE CandidateNo=" + candidateNo + " and BillID=" + billid;
c = db.rawQuery(sql, null);
while (c.moveToNext()) {
titleList.No = c.getInt(c.getColumnIndex("CandidateNo"));
titleList.title = c.getString(c.getColumnIndex("CandidateName"));
titleList.content = c.getString(c.getColumnIndex("CandidateMemo"));
titleList.file = c.getString(c.getColumnIndex("CandidateFile"));
titleList.startVote = false;
// break;
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (c != null) {
c.close();
}
}
return titleList;
}
/**
* close database
*/
public void closeDB() {
if (db != null) {
db.close();
db=null;
}
}
}