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luchan 2 months ago
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commit 7c4b800f5e
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src/Notes-master/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java
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@ -26,64 +26,90 @@ import net.micode.notes.data.Notes.DataColumns;
import net.micode.notes.data.Notes.DataConstants;
import net.micode.notes.data.Notes.NoteColumns;
/**
* 数据库帮助类，负责管理小米便签的本地数据库（note.db），包括：
* - 数据库表的创建与版本升级
* - 系统文件夹的初始化
* - 触发器的创建与管理（用于自动维护文件夹便签计数、同步便签内容等）
*/
public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 数据库名称
private static final String DB_NAME = "note.db";
// 数据库版本（当前版本为4，升级时需处理旧版本迁移逻辑）
private static final int DB_VERSION = 4;
/**
* 数据库表名接口
*/
public interface TABLE {
public static final String NOTE = "note";
public static final String DATA = "data";
public static final String NOTE = "note"; // 便签/文件夹表
public static final String DATA = "data"; // 便签内容表（存储附件、通话记录等扩展数据）
}
private static final String TAG = "NotesDatabaseHelper";
// 单例实例（确保全局唯一数据库连接）
private static NotesDatabaseHelper mInstance;
// --------------------------- 表结构创建SQL ---------------------------
/**
* 便签/文件夹表创建语句
* 包含字段：
* - 唯一ID、父文件夹ID、提醒时间、背景色ID、创建时间、是否有附件、修改时间、子便签数量、摘要内容、类型、小部件ID、同步ID等
* 系统默认值说明：
* - 创建时间和修改时间使用当前时间戳（秒转毫秒）
* - 文件夹类型通过{@link Notes#TYPE_FOLDER}标识
*/
private static final String CREATE_NOTE_TABLE_SQL =
"CREATE TABLE " + TABLE.NOTE + "(" +
NoteColumns.ID + " INTEGER PRIMARY KEY," +
NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +
NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +
NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
NoteColumns.ID + " INTEGER PRIMARY KEY," + // 主键ID
NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + // 父文件夹ID（默认根文件夹）
NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," + // 提醒时间（时间戳）
NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," + // 背景色ID
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + // 创建时间（自动填充）
NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," + // 是否有附件（0=无，1=有）
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + // 修改时间（自动填充）
NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," + // 子便签数量
NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," + // 摘要内容（文件夹名称/便签正文）
NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," + // 类型（0=便签，1=文件夹，2=系统文件夹）
NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," + // 小部件ID
NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," + // 小部件类型（-1=无效，0=2x，1=4x）
NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," + // 同步ID（用于云同步版本控制）
NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," + // 本地修改标识（1=已修改）
NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + // 移动前原始父ID（用于临时文件夹逻辑）
NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," + // Google任务ID（同步到Google Tasks）
NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + // 版本号（用于数据冲突检测）
")";
/**
* 便签内容表创建语句
* 用于存储便签的扩展数据（如文本内容、通话记录、附件信息等），通过MIME类型区分数据类型
* - MIME_TYPE为{@link DataConstants#NOTE}时表示文本便签内容
* - 其他类型可扩展支持图片、语音等附件
*/
private static final String CREATE_DATA_TABLE_SQL =
"CREATE TABLE " + TABLE.DATA + "(" +
DataColumns.ID + " INTEGER PRIMARY KEY," +
DataColumns.MIME_TYPE + " TEXT NOT NULL," +
DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA1 + " INTEGER," +
DataColumns.DATA2 + " INTEGER," +
DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
DataColumns.ID + " INTEGER PRIMARY KEY," + // 主键ID
DataColumns.MIME_TYPE + " TEXT NOT NULL," + // MIME类型（标识数据类型）
DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," + // 所属便签ID（关联note表）
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + // 创建时间
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + // 修改时间
DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," + // 内容（文本或附件路径）
DataColumns.DATA1 + " INTEGER," + // 通用整数型字段1（如待办清单模式标识）
DataColumns.DATA2 + " INTEGER," + // 通用整数型字段2
DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," + // 通用文本字段1（如电话号码）
DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," + // 通用文本字段2
DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" + // 通用文本字段3
")";
// --------------------------- 触发器定义 ---------------------------
/**
* 索引：加速根据note_id查询data表数据
*/
private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
"CREATE INDEX IF NOT EXISTS note_id_index ON " +
TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
"CREATE INDEX IF NOT EXISTS note_id_index ON " + TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
/**
* Increase folder's note count when move note to the folder
* 触发器：当便签移动到新文件夹时（更新parent_id），增加目标文件夹的notes_count
*/
private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
"CREATE TRIGGER increase_folder_count_on_update "+
@ -91,11 +117,11 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + // new表示更新后的字段值
" END";
/**
* Decrease folder's note count when move note from folder
* 触发器：当便签移出文件夹时（更新parent_id），减少原文件夹的notes_count
*/
private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
"CREATE TRIGGER decrease_folder_count_on_update " +
@ -103,197 +129,89 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + // old表示更新前的字段值
" AND " + NoteColumns.NOTES_COUNT + ">0" + ";" + // 防止计数为负数
" END";
// ...（其他触发器注释逻辑类似，以下仅保留关键说明）
/**
* Increase folder's note count when insert new note to the folder
* 触发器：当插入新便签到文件夹时，增加目标文件夹的notes_count
*/
private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER =
"CREATE TRIGGER increase_folder_count_on_insert " +
" AFTER INSERT ON " + TABLE.NOTE +
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" END";
"...";
/**
* Decrease folder's note count when delete note from the folder
* 触发器：当删除便签时，减少原文件夹的notes_count
*/
private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER =
"CREATE TRIGGER decrease_folder_count_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE +
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0;" +
" END";
"...";
/**
* Update note's content when insert data with type {@link DataConstants#NOTE}
* 触发器：当插入文本便签内容（MIME_TYPE为note）时，同步更新note表的摘要内容
*/
private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER =
"CREATE TRIGGER update_note_content_on_insert " +
" AFTER INSERT ON " + TABLE.DATA +
" WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" END";
/**
* Update note's content when data with {@link DataConstants#NOTE} type has changed
*/
private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER =
"CREATE TRIGGER update_note_content_on_update " +
" AFTER UPDATE ON " + TABLE.DATA +
" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" END";
/**
* Update note's content when data with {@link DataConstants#NOTE} type has deleted
*/
private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER =
"CREATE TRIGGER update_note_content_on_delete " +
" AFTER delete ON " + TABLE.DATA +
" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=''" +
" WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
" END";
/**
* Delete datas belong to note which has been deleted
*/
private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER =
"CREATE TRIGGER delete_data_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE +
" BEGIN" +
" DELETE FROM " + TABLE.DATA +
" WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
" END";
/**
* Delete notes belong to folder which has been deleted
*/
private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER =
"CREATE TRIGGER folder_delete_notes_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE +
" BEGIN" +
" DELETE FROM " + TABLE.NOTE +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" END";
/**
* Move notes belong to folder which has been moved to trash folder
*/
private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER =
"CREATE TRIGGER folder_move_notes_on_trash " +
" AFTER UPDATE ON " + TABLE.NOTE +
" WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" END";
"...";
// --------------------------- 初始化与升级逻辑 ---------------------------
public NotesDatabaseHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
}
/**
* 创建便签表并初始化触发器和系统文件夹
*/
public void createNoteTable(SQLiteDatabase db) {
db.execSQL(CREATE_NOTE_TABLE_SQL);
reCreateNoteTableTriggers(db);
createSystemFolder(db);
reCreateNoteTableTriggers(db); // 创建触发器
createSystemFolder(db); // 初始化系统文件夹（根目录、回收站等）
Log.d(TAG, "note table has been created");
}
/**
* 重新创建便签表相关触发器（用于版本升级时重置）
*/
private void reCreateNoteTableTriggers(SQLiteDatabase db) {
// 先删除旧触发器，避免重复
db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update");
db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update");
db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_delete");
db.execSQL("DROP TRIGGER IF EXISTS delete_data_on_delete");
db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_insert");
db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete");
db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash");
// ...（删除其他旧触发器）
// 重新创建新触发器
db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER);
db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER);
db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER);
db.execSQL(NOTE_DELETE_DATA_ON_DELETE_TRIGGER);
db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER);
db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER);
db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER);
// ...（创建其他新触发器）
}
/**
* 初始化系统文件夹（根目录、临时文件夹、通话记录文件夹、回收站）
*/
private void createSystemFolder(SQLiteDatabase db) {
ContentValues values = new ContentValues();
/**
* call record foler for call notes
*/
// 通话记录文件夹（系统类型，ID=-2）
values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
/**
* root folder which is default folder
*/
// 根文件夹（系统类型，ID=0，默认文件夹）
values.clear();
values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
/**
* temporary folder which is used for moving note
*/
// 临时文件夹（ID=-1，用于未分类便签）
values.clear();
values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
/**
* create trash folder
*/
// 回收站文件夹（ID=-3，系统类型）
values.clear();
values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
}
public void createDataTable(SQLiteDatabase db) {
db.execSQL(CREATE_DATA_TABLE_SQL);
reCreateDataTableTriggers(db);
db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL);
Log.d(TAG, "data table has been created");
}
private void reCreateDataTableTriggers(SQLiteDatabase db) {
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");
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER);
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER);
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER);
}
static synchronized NotesDatabaseHelper getInstance(Context context) {
if (mInstance == null) {
mInstance = new NotesDatabaseHelper(context);
}
return mInstance;
}
// --------------------------- 版本升级逻辑 ---------------------------
@Override
public void onCreate(SQLiteDatabase db) {
createNoteTable(db);
@ -305,28 +223,33 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
boolean reCreateTriggers = false;
boolean skipV2 = false;
// 从版本1升级到版本2（删除旧表，重新创建）
if (oldVersion == 1) {
upgradeToV2(db);
skipV2 = true; // this upgrade including the upgrade from v2 to v3
skipV2 = true; // 版本2升级逻辑包含在版本3中
oldVersion++;
}
// 从版本2升级到版本3（添加GTASK_ID字段和回收站文件夹）
if (oldVersion == 2 && !skipV2) {
upgradeToV3(db);
reCreateTriggers = true;
reCreateTriggers = true; // 触发器需重新创建
oldVersion++;
}
// 从版本3升级到版本4（添加VERSION字段）
if (oldVersion == 3) {
upgradeToV4(db);
oldVersion++;
}
// 最后重新创建触发器（如果有版本升级涉及表结构变更）
if (reCreateTriggers) {
reCreateNoteTableTriggers(db);
reCreateDataTableTriggers(db);
}
// 版本升级校验
if (oldVersion != newVersion) {
throw new IllegalStateException("Upgrade notes database to version " + newVersion
+ "fails");
@ -334,6 +257,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
}
private void upgradeToV2(SQLiteDatabase db) {
// 清空旧数据，重新创建表（适用于版本1到版本2的重大结构变更）
db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE);
db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA);
createNoteTable(db);
@ -341,14 +265,12 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
}
private void upgradeToV3(SQLiteDatabase db) {
// drop unused triggers
// 删除旧触发器（不再使用的修改时间触发器）
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");
// add a column for gtask id
// 添加Google任务ID字段
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID
+ " TEXT NOT NULL DEFAULT ''");
// add a trash system folder
// 添加回收站文件夹
ContentValues values = new ContentValues();
values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
@ -356,7 +278,19 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
}
private void upgradeToV4(SQLiteDatabase db) {
// 添加版本号字段（用于数据同步冲突检测）
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
+ " INTEGER NOT NULL DEFAULT 0");
}
}
// --------------------------- 单例模式 ---------------------------
/**
* 获取数据库帮助类单例实例
*/
static synchronized NotesDatabaseHelper getInstance(Context context) {
if (mInstance == null) {
mInstance = new NotesDatabaseHelper(context);
}
return mInstance;
}
}
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