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@ -37,12 +37,17 @@ import org.json.JSONObject;
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import java.util.ArrayList;
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/**
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* SqlNote 类用于处理笔记的数据库操作,包括创建、更新、加载笔记数据等。
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* 它封装了笔记的基本属性和与数据库交互的方法。
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*/
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public class SqlNote {
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private static final String TAG = SqlNote.class.getSimpleName();
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private static final String TAG = SqlNote.class.getSimpleName(); // 日志标签
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// 无效 ID 的标识
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private static final int INVALID_ID = -99999;
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// 数据库中笔记表的字段映射
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public static final String[] PROJECTION_NOTE = new String[] {
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NoteColumns.ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID,
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NoteColumns.CREATED_DATE, NoteColumns.HAS_ATTACHMENT, NoteColumns.MODIFIED_DATE,
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@ -52,89 +57,79 @@ public class SqlNote {
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NoteColumns.VERSION
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};
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// 字段对应的索引
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public static final int ID_COLUMN = 0;
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public static final int ALERTED_DATE_COLUMN = 1;
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public static final int BG_COLOR_ID_COLUMN = 2;
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public static final int CREATED_DATE_COLUMN = 3;
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public static final int HAS_ATTACHMENT_COLUMN = 4;
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public static final int MODIFIED_DATE_COLUMN = 5;
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public static final int NOTES_COUNT_COLUMN = 6;
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public static final int PARENT_ID_COLUMN = 7;
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public static final int SNIPPET_COLUMN = 8;
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public static final int TYPE_COLUMN = 9;
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public static final int WIDGET_ID_COLUMN = 10;
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public static final int WIDGET_TYPE_COLUMN = 11;
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public static final int SYNC_ID_COLUMN = 12;
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public static final int LOCAL_MODIFIED_COLUMN = 13;
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public static final int ORIGIN_PARENT_ID_COLUMN = 14;
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public static final int GTASK_ID_COLUMN = 15;
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public static final int VERSION_COLUMN = 16;
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// 上下文对象
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private Context mContext;
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// 内容解析器,用于操作数据库
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private ContentResolver mContentResolver;
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// 是否是新建笔记
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private boolean mIsCreate;
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// 笔记的 ID
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private long mId;
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// 提醒日期
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private long mAlertDate;
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// 背景颜色 ID
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private int mBgColorId;
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// 创建日期
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private long mCreatedDate;
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// 是否有附件
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private int mHasAttachment;
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// 修改日期
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private long mModifiedDate;
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// 父笔记 ID
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private long mParentId;
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// 笔记摘要
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private String mSnippet;
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// 笔记类型
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private int mType;
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// 小部件 ID
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private int mWidgetId;
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// 小部件类型
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private int mWidgetType;
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// 原始父笔记 ID
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private long mOriginParent;
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// 笔记版本
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private long mVersion;
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// 用于记录修改的 ContentValues
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private ContentValues mDiffNoteValues;
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// 笔记数据列表
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private ArrayList<SqlData> mDataList;
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/**
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* 构造函数,用于创建一个新的 SqlNote 对象。
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* @param context 上下文对象
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*/
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public SqlNote(Context context) {
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mContext = context;
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mContentResolver = context.getContentResolver();
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mIsCreate = true;
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mId = INVALID_ID;
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mAlertDate = 0;
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mBgColorId = ResourceParser.getDefaultBgId(context);
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mCreatedDate = System.currentTimeMillis();
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mBgColorId = ResourceParser.getDefaultBgId(context); // 默认背景颜色
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mCreatedDate = System.currentTimeMillis(); // 当前时间
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mHasAttachment = 0;
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mModifiedDate = System.currentTimeMillis();
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mModifiedDate = System.currentTimeMillis(); // 当前时间
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mParentId = 0;
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mSnippet = "";
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mType = Notes.TYPE_NOTE;
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mType = Notes.TYPE_NOTE; // 默认为普通笔记类型
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mWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
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mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
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mOriginParent = 0;
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@ -143,39 +138,52 @@ public class SqlNote {
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mDataList = new ArrayList<SqlData>();
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}
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/**
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* 构造函数,用于从数据库中的 Cursor 加载笔记数据。
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* @param context 上下文对象
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* @param c 数据库查询结果的 Cursor
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*/
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public SqlNote(Context context, Cursor c) {
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mContext = context;
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mContentResolver = context.getContentResolver();
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mIsCreate = false;
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loadFromCursor(c);
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loadFromCursor(c); // 从 Cursor 加载笔记数据
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mDataList = new ArrayList<SqlData>();
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if (mType == Notes.TYPE_NOTE)
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loadDataContent();
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loadDataContent(); // 如果是普通笔记,加载笔记内容
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mDiffNoteValues = new ContentValues();
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}
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/**
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* 构造函数,通过笔记 ID 从数据库加载笔记数据。
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* @param context 上下文对象
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* @param id 笔记的 ID
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*/
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public SqlNote(Context context, long id) {
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mContext = context;
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mContentResolver = context.getContentResolver();
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mIsCreate = false;
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loadFromCursor(id);
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loadFromCursor(id); // 通过 ID 加载笔记数据
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mDataList = new ArrayList<SqlData>();
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if (mType == Notes.TYPE_NOTE)
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loadDataContent();
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loadDataContent(); // 如果是普通笔记,加载笔记内容
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mDiffNoteValues = new ContentValues();
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}
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/**
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* 通过笔记 ID 从数据库加载笔记数据。
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* @param id 笔记的 ID
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*/
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private void loadFromCursor(long id) {
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Cursor c = null;
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try {
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c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)",
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new String[] {
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String.valueOf(id)
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String.valueOf(id)
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}, null);
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if (c != null) {
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c.moveToNext();
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loadFromCursor(c);
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loadFromCursor(c); // 从 Cursor 加载笔记数据
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} else {
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Log.w(TAG, "loadFromCursor: cursor = null");
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}
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@ -185,6 +193,10 @@ public class SqlNote {
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}
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}
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/**
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* 从 Cursor 中加载笔记数据。
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* @param c 数据库查询结果的 Cursor
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*/
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private void loadFromCursor(Cursor c) {
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mId = c.getLong(ID_COLUMN);
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mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
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@ -200,13 +212,16 @@ public class SqlNote {
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mVersion = c.getLong(VERSION_COLUMN);
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}
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/**
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* 加载笔记的内容数据。
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*/
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private void loadDataContent() {
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Cursor c = null;
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mDataList.clear();
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try {
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c = mContentResolver.query(Notes.CONTENT_DATA_URI, SqlData.PROJECTION_DATA,
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"(note_id=?)", new String[] {
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String.valueOf(mId)
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String.valueOf(mId)
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}, null);
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if (c != null) {
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if (c.getCount() == 0) {
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@ -226,13 +241,18 @@ public class SqlNote {
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}
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}
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/**
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* 设置笔记内容,从 JSON 对象中解析数据。
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* @param js 包含笔记数据的 JSON 对象
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* @return 是否设置成功
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*/
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public boolean setContent(JSONObject js) {
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try {
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JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
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if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
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Log.w(TAG, "cannot set system folder");
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} else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) {
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// for folder we can only update the snnipet and type
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// 对于文件夹,只能更新摘要和类型
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String snippet = note.has(NoteColumns.SNIPPET) ? note
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.getString(NoteColumns.SNIPPET) : "";
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if (mIsCreate || !mSnippet.equals(snippet)) {
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@ -247,6 +267,7 @@ public class SqlNote {
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}
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mType = type;
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} else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_NOTE) {
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// 对于普通笔记,解析所有字段
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JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
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long id = note.has(NoteColumns.ID) ? note.getLong(NoteColumns.ID) : INVALID_ID;
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if (mIsCreate || mId != id) {
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@ -331,6 +352,7 @@ public class SqlNote {
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}
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mOriginParent = originParent;
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// 解析笔记内容数据
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for (int i = 0; i < dataArray.length(); i++) {
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JSONObject data = dataArray.getJSONObject(i);
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SqlData sqlData = null;
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@ -359,6 +381,10 @@ public class SqlNote {
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return true;
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}
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/**
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* 获取笔记内容,以 JSON 对象的形式返回。
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* @return 包含笔记数据的 JSON 对象
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*/
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public JSONObject getContent() {
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try {
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JSONObject js = new JSONObject();
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@ -370,6 +396,7 @@ public class SqlNote {
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JSONObject note = new JSONObject();
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if (mType == Notes.TYPE_NOTE) {
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// 普通笔记,包含详细字段
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note.put(NoteColumns.ID, mId);
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note.put(NoteColumns.ALERTED_DATE, mAlertDate);
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note.put(NoteColumns.BG_COLOR_ID, mBgColorId);
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@ -393,6 +420,7 @@ public class SqlNote {
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}
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js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
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} else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {
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// 文件夹或系统笔记,只包含基本字段
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note.put(NoteColumns.ID, mId);
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note.put(NoteColumns.TYPE, mType);
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note.put(NoteColumns.SNIPPET, mSnippet);
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@ -407,41 +435,77 @@ public class SqlNote {
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return null;
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}
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/**
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* 设置笔记的父笔记 ID。
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* @param id 父笔记 ID
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*/
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public void setParentId(long id) {
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mParentId = id;
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mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
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}
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/**
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* 设置笔记的 GTask ID。
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* @param gid GTask ID
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*/
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public void setGtaskId(String gid) {
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mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
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}
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/**
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* 设置笔记的同步 ID。
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* @param syncId 同步 ID
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*/
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public void setSyncId(long syncId) {
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mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
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}
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/**
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* 重置本地修改标记。
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*/
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public void resetLocalModified() {
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mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
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}
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/**
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|
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|
* 获取笔记的 ID。
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|
* @return 笔记的 ID
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|
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|
*/
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|
|
|
|
public long getId() {
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|
return mId;
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|
}
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|
/**
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|
* 获取笔记的父笔记 ID。
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|
* @return 父笔记 ID
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|
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|
*/
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|
|
|
|
public long getParentId() {
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|
return mParentId;
|
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|
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|
}
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|
/**
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|
* 获取笔记的摘要。
|
|
|
|
|
* @return 笔记的摘要
|
|
|
|
|
*/
|
|
|
|
|
public String getSnippet() {
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|
|
|
|
return mSnippet;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 判断笔记是否为普通笔记类型。
|
|
|
|
|
* @return 是否为普通笔记类型
|
|
|
|
|
*/
|
|
|
|
|
public boolean isNoteType() {
|
|
|
|
|
return mType == Notes.TYPE_NOTE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 提交笔记数据到数据库。
|
|
|
|
|
* @param validateVersion 是否验证版本号
|
|
|
|
|
*/
|
|
|
|
|
public void commit(boolean validateVersion) {
|
|
|
|
|
if (mIsCreate) {
|
|
|
|
|
// 新建笔记
|
|
|
|
|
if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
|
|
|
|
|
mDiffNoteValues.remove(NoteColumns.ID);
|
|
|
|
|
}
|
|
|
|
|
@ -463,21 +527,22 @@ public class SqlNote {
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
// 更新笔记
|
|
|
|
|
if (mId <= 0 && mId != Notes.ID_ROOT_FOLDER && mId != Notes.ID_CALL_RECORD_FOLDER) {
|
|
|
|
|
Log.e(TAG, "No such note");
|
|
|
|
|
throw new IllegalStateException("Try to update note with invalid id");
|
|
|
|
|
}
|
|
|
|
|
if (mDiffNoteValues.size() > 0) {
|
|
|
|
|
mVersion ++;
|
|
|
|
|
mVersion++;
|
|
|
|
|
int result = 0;
|
|
|
|
|
if (!validateVersion) {
|
|
|
|
|
result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
|
|
|
|
|
+ NoteColumns.ID + "=?)", new String[] {
|
|
|
|
|
String.valueOf(mId)
|
|
|
|
|
String.valueOf(mId)
|
|
|
|
|
});
|
|
|
|
|
} else {
|
|
|
|
|
result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
|
|
|
|
|
+ NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
|
|
|
|
|
+ NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
|
|
|
|
|
new String[] {
|
|
|
|
|
String.valueOf(mId), String.valueOf(mVersion)
|
|
|
|
|
});
|
|
|
|
|
@ -494,7 +559,7 @@ public class SqlNote {
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// refresh local info
|
|
|
|
|
// 刷新本地信息
|
|
|
|
|
loadFromCursor(mId);
|
|
|
|
|
if (mType == Notes.TYPE_NOTE)
|
|
|
|
|
loadDataContent();
|
|
|
|
|
@ -502,4 +567,4 @@ public class SqlNote {
|
|
|
|
|
mDiffNoteValues.clear();
|
|
|
|
|
mIsCreate = false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|