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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.data;
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import android.content.ContentValues;
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import android.content.Context;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteOpenHelper;
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import android.util.Log;
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import net.micode.notes.data.Notes.DataColumns;
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import net.micode.notes.data.Notes.DataConstants;
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import net.micode.notes.data.Notes.NoteColumns;
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/**
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* 小米便签数据库帮助类
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* 负责创建、升级数据库，管理表结构和触发器
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*/
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public class NotesDatabaseHelper extends SQLiteOpenHelper {
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// 数据库名称
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private static final String DB_NAME = "note.db";
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// 数据库版本号
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private static final int DB_VERSION = 9;
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// 数据库表名定义
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public interface TABLE {
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// 笔记表：存储笔记和文件夹的基本信息
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public static final String NOTE = "note";
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// 数据表：存储笔记的详细内容，支持多种类型的笔记数据
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public static final String DATA = "data";
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}
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// 日志标签
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private static final String TAG = "NotesDatabaseHelper";
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// 单例实例，确保整个应用只有一个数据库帮助类实例
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private static NotesDatabaseHelper mInstance;
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// 创建笔记表的SQL语句
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// 笔记表存储笔记和文件夹的基本信息，包括：
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// - ID：唯一标识符
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// - PARENT_ID：父文件夹ID
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// - ALERTED_DATE：提醒日期
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// - BG_COLOR_ID：背景颜色ID
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// - CREATED_DATE：创建日期
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// - HAS_ATTACHMENT：是否有附件
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// - MODIFIED_DATE：修改日期
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// - NOTES_COUNT：子笔记数量（仅文件夹使用）
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// - SNIPPET：笔记内容片段或文件夹名称
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// - TYPE：类型（笔记、文件夹、系统文件夹）
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// - WIDGET_ID：关联的小部件ID
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// - WIDGET_TYPE：小部件类型
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// - SYNC_ID：同步ID
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// - LOCAL_MODIFIED：本地是否修改
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// - ORIGIN_PARENT_ID：原始父文件夹ID
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// - GTASK_ID：Google任务ID
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// - VERSION：版本号
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private static final String CREATE_NOTE_TABLE_SQL =
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"CREATE TABLE " + TABLE.NOTE + "(" +
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NoteColumns.ID + " INTEGER PRIMARY KEY," +
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NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +
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NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +
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NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
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NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.IS_PINNED + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.PIN_PRIORITY + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.IS_LOCKED + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.LOCK_PASSWORD + " TEXT NOT NULL DEFAULT ''," +
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NoteColumns.TAGS + " TEXT NOT NULL DEFAULT ''" +
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")";
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// 创建数据表的SQL语句
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// 数据表存储笔记的详细内容，支持多种类型的笔记数据，包括：
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// - ID：唯一标识符
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// - MIME_TYPE：数据类型，如文本笔记、通话笔记等
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// - NOTE_ID：关联的笔记ID
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// - CREATED_DATE：创建日期
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// - MODIFIED_DATE：修改日期
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// - CONTENT：数据内容
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// - DATA1, DATA2, DATA3, DATA4, DATA5：扩展字段，根据不同数据类型存储不同信息
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private static final String CREATE_DATA_TABLE_SQL =
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"CREATE TABLE " + TABLE.DATA + "(" +
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DataColumns.ID + " INTEGER PRIMARY KEY," +
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DataColumns.MIME_TYPE + " TEXT NOT NULL," +
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DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.DATA1 + " INTEGER," +
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DataColumns.DATA2 + " INTEGER," +
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DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
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")";
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private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
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"CREATE INDEX IF NOT EXISTS note_id_index ON " +
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TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
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/**
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* 当将笔记移动到文件夹时，增加文件夹的笔记计数
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*/
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private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
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"CREATE TRIGGER increase_folder_count_on_update "+
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" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
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" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
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" END";
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/**
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* 当将笔记从文件夹移出时，减少文件夹的笔记计数
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*/
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private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
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"CREATE TRIGGER decrease_folder_count_on_update " +
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" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
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" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
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" AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
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" END";
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/**
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* 当向文件夹插入新笔记时，增加文件夹的笔记计数
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*/
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private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER =
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"CREATE TRIGGER increase_folder_count_on_insert " +
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" AFTER INSERT ON " + TABLE.NOTE +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
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" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
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" END";
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/**
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* 当从文件夹删除笔记时，减少文件夹的笔记计数
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*/
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private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER =
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"CREATE TRIGGER decrease_folder_count_on_delete " +
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" AFTER DELETE ON " + TABLE.NOTE +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
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" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
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" AND " + NoteColumns.NOTES_COUNT + ">0;" +
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" END";
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/**
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* 当插入类型为普通笔记的数据时，更新笔记内容
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*/
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER =
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"CREATE TRIGGER update_note_content_on_insert " +
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" AFTER INSERT ON " + TABLE.DATA +
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" WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
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" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
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" END";
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/**
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* 当类型为普通笔记的数据发生变化时，更新笔记内容
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*/
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER =
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"CREATE TRIGGER update_note_content_on_update " +
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" AFTER UPDATE ON " + TABLE.DATA +
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" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
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" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
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" END";
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/**
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* 当类型为普通笔记的数据被删除时，更新笔记内容
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*/
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER =
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"CREATE TRIGGER update_note_content_on_delete " +
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" AFTER delete ON " + TABLE.DATA +
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" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.SNIPPET + "=''" +
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" WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
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" END";
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/**
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* 删除属于已删除笔记的数据
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*/
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private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER =
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"CREATE TRIGGER delete_data_on_delete " +
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" AFTER DELETE ON " + TABLE.NOTE +
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" BEGIN" +
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" DELETE FROM " + TABLE.DATA +
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" WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
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" END";
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/**
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* 删除属于已删除文件夹的笔记
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*/
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private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER =
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"CREATE TRIGGER folder_delete_notes_on_delete " +
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" AFTER DELETE ON " + TABLE.NOTE +
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" BEGIN" +
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" DELETE FROM " + TABLE.NOTE +
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" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
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" END";
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/**
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* 将属于已移至回收站的文件夹的笔记也移至回收站
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*/
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private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER =
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"CREATE TRIGGER folder_move_notes_on_trash " +
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" AFTER UPDATE ON " + TABLE.NOTE +
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" WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
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" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
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" END";
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public NotesDatabaseHelper(Context context) {
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super(context, DB_NAME, null, DB_VERSION);
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}
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/**
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* 创建笔记表及其相关触发器和系统文件夹
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* @param db SQLite数据库实例
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*/
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public void createNoteTable(SQLiteDatabase db) {
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// 创建笔记表
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db.execSQL(CREATE_NOTE_TABLE_SQL);
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// 重新创建笔记表相关触发器
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reCreateNoteTableTriggers(db);
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// 创建系统文件夹
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createSystemFolder(db);
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// 记录日志
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Log.d(TAG, "note table has been created");
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}
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/**
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* 重新创建笔记表相关触发器，确保触发器的正确性和一致性
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* @param db SQLite数据库实例
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*/
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private void reCreateNoteTableTriggers(SQLiteDatabase db) {
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// 删除已存在的触发器
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db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update");
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db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update");
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db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_delete");
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db.execSQL("DROP TRIGGER IF EXISTS delete_data_on_delete");
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db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_insert");
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db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete");
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db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash");
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// 创建新的触发器
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db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); // 更新笔记父文件夹时增加目标文件夹的笔记计数
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db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); // 更新笔记父文件夹时减少原文件夹的笔记计数
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db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER); // 删除笔记时减少父文件夹的笔记计数
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db.execSQL(NOTE_DELETE_DATA_ON_DELETE_TRIGGER); // 删除笔记时删除关联的数据
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db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER); // 插入笔记时增加父文件夹的笔记计数
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db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER); // 删除文件夹时删除其所有子笔记
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db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER); // 将文件夹移到回收站时，将其所有子笔记也移到回收站
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}
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/**
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* 创建系统文件夹
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* 系统文件夹用于管理不同类型的笔记，包括：
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* - 通话记录文件夹：存储通话记录
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* - 根文件夹：默认文件夹，用于存储普通笔记
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* - 临时文件夹：用于移动笔记时的临时存储
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* - 回收站文件夹：用于存储被删除的笔记和文件夹
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* @param db SQLite数据库实例
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*/
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private void createSystemFolder(SQLiteDatabase db) {
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ContentValues values = new ContentValues();
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// 创建通话记录文件夹：用于存储通话记录
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values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER);
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values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
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db.insert(TABLE.NOTE, null, values);
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// 创建根文件夹：默认文件夹，用于存储普通笔记
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values.clear();
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values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
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values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
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db.insert(TABLE.NOTE, null, values);
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// 创建临时文件夹：用于移动笔记时的临时存储
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values.clear();
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values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
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values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
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db.insert(TABLE.NOTE, null, values);
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// 创建回收站文件夹：用于存储被删除的笔记和文件夹
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values.clear();
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values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
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values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
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db.insert(TABLE.NOTE, null, values);
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}
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/**
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* 获取NotesDatabaseHelper的单例实例
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* 使用同步方法确保线程安全，避免多线程环境下创建多个实例
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* @param context 上下文对象
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* @return NotesDatabaseHelper的单例实例
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*/
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static synchronized NotesDatabaseHelper getInstance(Context context) {
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if (mInstance == null) {
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mInstance = new NotesDatabaseHelper(context);
|
|
|
}
|
|
|
return mInstance;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 创建数据表及其相关触发器和索引
|
|
|
* @param db SQLite数据库实例
|
|
|
*/
|
|
|
public void createDataTable(SQLiteDatabase db) {
|
|
|
// 创建数据表
|
|
|
db.execSQL(CREATE_DATA_TABLE_SQL);
|
|
|
// 重新创建数据表相关触发器
|
|
|
reCreateDataTableTriggers(db);
|
|
|
// 为data表的note_id字段创建索引，提高查询效率
|
|
|
db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL);
|
|
|
// 记录日志
|
|
|
Log.d(TAG, "data table has been created");
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 重新创建数据表相关触发器，确保触发器的正确性和一致性
|
|
|
* @param db SQLite数据库实例
|
|
|
*/
|
|
|
private void reCreateDataTableTriggers(SQLiteDatabase db) {
|
|
|
// 删除已存在的数据表触发器
|
|
|
db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert");
|
|
|
db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update");
|
|
|
db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete");
|
|
|
|
|
|
// 创建新的数据表触发器
|
|
|
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER); // 插入文本笔记数据时更新笔记内容
|
|
|
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER); // 更新文本笔记数据时更新笔记内容
|
|
|
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER); // 删除文本笔记数据时清空笔记内容
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 创建数据库时调用，初始化数据库表结构和数据
|
|
|
* @param db SQLite数据库实例
|
|
|
*/
|
|
|
@Override
|
|
|
public void onCreate(SQLiteDatabase db) {
|
|
|
// 创建笔记表及其相关触发器和系统文件夹
|
|
|
createNoteTable(db);
|
|
|
// 创建数据表及其相关触发器和索引
|
|
|
createDataTable(db);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 数据库升级时调用，处理不同版本之间的升级逻辑
|
|
|
* @param db SQLite数据库实例
|
|
|
* @param oldVersion 旧数据库版本号
|
|
|
* @param newVersion 新数据库版本号
|
|
|
* @throws IllegalStateException 升级失败时抛出异常
|
|
|
*/
|
|
|
@Override
|
|
|
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
|
|
|
boolean reCreateTriggers = false; // 是否需要重新创建触发器
|
|
|
boolean skipV2 = false; // 是否跳过v2版本升级
|
|
|
|
|
|
// 从v1升级到v2
|
|
|
if (oldVersion == 1) {
|
|
|
upgradeToV2(db);
|
|
|
skipV2 = true; // v2到v3的升级已包含在v1到v2的升级中
|
|
|
oldVersion++;
|
|
|
}
|
|
|
|
|
|
// 从v2升级到v3
|
|
|
if (oldVersion == 2 && !skipV2) {
|
|
|
upgradeToV3(db);
|
|
|
reCreateTriggers = true; // v3升级需要重新创建触发器
|
|
|
oldVersion++;
|
|
|
}
|
|
|
|
|
|
// 从v3升级到v4
|
|
|
if (oldVersion == 3) {
|
|
|
upgradeToV4(db);
|
|
|
oldVersion++;
|
|
|
}
|
|
|
|
|
|
// 从v4升级到v5
|
|
|
if (oldVersion == 4) {
|
|
|
upgradeToV5(db);
|
|
|
oldVersion++;
|
|
|
}
|
|
|
|
|
|
if (oldVersion == 5) {
|
|
|
upgradeToV6(db);
|
|
|
oldVersion++;
|
|
|
}
|
|
|
|
|
|
if (oldVersion == 6) {
|
|
|
upgradeToV7(db);
|
|
|
oldVersion++;
|
|
|
}
|
|
|
|
|
|
if (oldVersion == 7) {
|
|
|
upgradeToV8(db);
|
|
|
oldVersion++;
|
|
|
}
|
|
|
|
|
|
if (oldVersion == 8) {
|
|
|
upgradeToV9(db);
|
|
|
oldVersion++;
|
|
|
}
|
|
|
|
|
|
if (reCreateTriggers) {
|
|
|
reCreateNoteTableTriggers(db);
|
|
|
reCreateDataTableTriggers(db);
|
|
|
}
|
|
|
|
|
|
// 检查升级是否成功
|
|
|
if (oldVersion != newVersion) {
|
|
|
throw new IllegalStateException("Upgrade notes database to version " + newVersion + " fails");
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 将数据库从v1升级到v2
|
|
|
* 此版本升级重建了整个数据库结构
|
|
|
* @param db SQLite数据库实例
|
|
|
*/
|
|
|
private void upgradeToV2(SQLiteDatabase db) {
|
|
|
// 删除旧的笔记表和数据表
|
|
|
db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE);
|
|
|
db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA);
|
|
|
// 创建新的笔记表
|
|
|
createNoteTable(db);
|
|
|
// 创建新的数据表
|
|
|
createDataTable(db);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 将数据库从v2升级到v3
|
|
|
* 此版本升级添加了Google任务ID字段和回收站文件夹
|
|
|
* @param db SQLite数据库实例
|
|
|
*/
|
|
|
private void upgradeToV3(SQLiteDatabase db) {
|
|
|
// 删除不再使用的触发器
|
|
|
db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert");
|
|
|
db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_delete");
|
|
|
db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_update");
|
|
|
// 为笔记表添加Google任务ID字段
|
|
|
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID
|
|
|
+ " TEXT NOT NULL DEFAULT ''");
|
|
|
// 添加回收站系统文件夹
|
|
|
ContentValues values = new ContentValues();
|
|
|
values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
|
|
|
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
|
|
|
db.insert(TABLE.NOTE, null, values);
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 将数据库从v3升级到v4
|
|
|
* 此版本升级添加了版本号字段，用于记录笔记的版本
|
|
|
* @param db SQLite数据库实例
|
|
|
*/
|
|
|
private void upgradeToV4(SQLiteDatabase db) {
|
|
|
// 为笔记表添加版本号字段
|
|
|
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
|
|
|
+ " INTEGER NOT NULL DEFAULT 0");
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 将数据库从v4升级到v5
|
|
|
* 此版本升级添加了置顶状态和置顶优先级字段，用于支持便签置顶功能
|
|
|
* @param db SQLite数据库实例
|
|
|
*/
|
|
|
private void upgradeToV5(SQLiteDatabase db) {
|
|
|
// 为笔记表添加置顶状态字段
|
|
|
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.IS_PINNED
|
|
|
+ " INTEGER NOT NULL DEFAULT 0");
|
|
|
// 为笔记表添加置顶优先级字段
|
|
|
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.PIN_PRIORITY
|
|
|
+ " INTEGER NOT NULL DEFAULT 0");
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 将数据库从v5升级到v6
|
|
|
* 此版本升级添加了便签锁定状态和密码字段，用于支持便签密码锁功能
|
|
|
* @param db SQLite数据库实例
|
|
|
*/
|
|
|
private void upgradeToV6(SQLiteDatabase db) {
|
|
|
// 为笔记表添加锁定状态字段
|
|
|
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.IS_LOCKED
|
|
|
+ " INTEGER NOT NULL DEFAULT 0");
|
|
|
// 为笔记表添加密码字段
|
|
|
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.LOCK_PASSWORD
|
|
|
+ " TEXT NOT NULL DEFAULT ''");
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 将数据库从v6升级到v7
|
|
|
* 此版本升级添加了密码类型字段，用于支持手势密码和数字密码
|
|
|
* @param db SQLite数据库实例
|
|
|
*/
|
|
|
private void upgradeToV7(SQLiteDatabase db) {
|
|
|
// 为笔记表添加密码类型字段
|
|
|
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.PASSWORD_TYPE
|
|
|
+ " TEXT NOT NULL DEFAULT 'gesture'");
|
|
|
// 为笔记表添加数字密码字段
|
|
|
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.NUMERIC_PASSWORD
|
|
|
+ " TEXT NOT NULL DEFAULT ''");
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 将数据库从v7升级到v8
|
|
|
* 此版本升级添加了标题字段，用于支持便签标题功能
|
|
|
* @param db SQLite数据库实例
|
|
|
*/
|
|
|
private void upgradeToV8(SQLiteDatabase db) {
|
|
|
// 为笔记表添加标题字段
|
|
|
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.TITLE
|
|
|
+ " TEXT NOT NULL DEFAULT ''");
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 将数据库从v8升级到v9
|
|
|
* 此版本升级添加了标签字段，用于支持便签标签功能
|
|
|
* @param db SQLite数据库实例
|
|
|
*/
|
|
|
private void upgradeToV9(SQLiteDatabase db) {
|
|
|
// 为笔记表添加标签字段
|
|
|
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.TAGS
|
|
|
+ " TEXT NOT NULL DEFAULT ''");
|
|
|
}
|
|
|
}
|
