mirror of
https://github.com/laurent22/joplin.git
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675 lines
20 KiB
TypeScript
675 lines
20 KiB
TypeScript
import paginationToSql from './models/utils/paginationToSql';
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import Database from './database';
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import uuid from './uuid';
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import time from './time';
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import JoplinDatabase, { TableField } from './JoplinDatabase';
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const Mutex = require('async-mutex').Mutex;
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// New code should make use of this enum
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export enum ModelType {
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Note = 1,
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Folder = 2,
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Setting = 3,
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Resource = 4,
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Tag = 5,
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NoteTag = 6,
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Search = 7,
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Alarm = 8,
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MasterKey = 9,
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ItemChange = 10,
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NoteResource = 11,
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ResourceLocalState = 12,
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Revision = 13,
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Migration = 14,
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SmartFilter = 15,
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Command = 16,
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}
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export interface DeleteOptions {
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idFieldName?: string;
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changeSource?: number;
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deleteChildren?: boolean;
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// By default the application tracks item deletions, so that they can be
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// applied to the remote items during synchronisation. However, in some
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// cases, we don't want this. In particular when an item is deleted via
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// sync, we don't need to track the deletion, because the operation doesn't
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// need to applied again on next sync.
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trackDeleted?: boolean;
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}
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class BaseModel {
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// TODO: This ancient part of Joplin about model types is a bit of a
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// mess and should be refactored properly.
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public static typeEnum_: any[] = [
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['TYPE_NOTE', ModelType.Note],
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['TYPE_FOLDER', ModelType.Folder],
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['TYPE_SETTING', ModelType.Setting],
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['TYPE_RESOURCE', ModelType.Resource],
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['TYPE_TAG', ModelType.Tag],
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['TYPE_NOTE_TAG', ModelType.NoteTag],
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['TYPE_SEARCH', ModelType.Search],
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['TYPE_ALARM', ModelType.Alarm],
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['TYPE_MASTER_KEY', ModelType.MasterKey],
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['TYPE_ITEM_CHANGE', ModelType.ItemChange],
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['TYPE_NOTE_RESOURCE', ModelType.NoteResource],
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['TYPE_RESOURCE_LOCAL_STATE', ModelType.ResourceLocalState],
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['TYPE_REVISION', ModelType.Revision],
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['TYPE_MIGRATION', ModelType.Migration],
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['TYPE_SMART_FILTER', ModelType.SmartFilter],
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['TYPE_COMMAND', ModelType.Command],
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];
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public static TYPE_NOTE = ModelType.Note;
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public static TYPE_FOLDER = ModelType.Folder;
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public static TYPE_SETTING = ModelType.Setting;
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public static TYPE_RESOURCE = ModelType.Resource;
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public static TYPE_TAG = ModelType.Tag;
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public static TYPE_NOTE_TAG = ModelType.NoteTag;
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public static TYPE_SEARCH = ModelType.Search;
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public static TYPE_ALARM = ModelType.Alarm;
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public static TYPE_MASTER_KEY = ModelType.MasterKey;
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public static TYPE_ITEM_CHANGE = ModelType.ItemChange;
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public static TYPE_NOTE_RESOURCE = ModelType.NoteResource;
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public static TYPE_RESOURCE_LOCAL_STATE = ModelType.ResourceLocalState;
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public static TYPE_REVISION = ModelType.Revision;
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public static TYPE_MIGRATION = ModelType.Migration;
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public static TYPE_SMART_FILTER = ModelType.SmartFilter;
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public static TYPE_COMMAND = ModelType.Command;
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public static dispatch: Function = function() {};
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private static saveMutexes_: any = {};
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private static db_: JoplinDatabase;
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static modelType(): ModelType {
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throw new Error('Must be overriden');
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}
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static tableName(): string {
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throw new Error('Must be overriden');
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}
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static setDb(db: any) {
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this.db_ = db;
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}
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static addModelMd(model: any): any {
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if (!model) return model;
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if (Array.isArray(model)) {
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const output = [];
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for (let i = 0; i < model.length; i++) {
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output.push(this.addModelMd(model[i]));
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}
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return output;
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} else {
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model = Object.assign({}, model);
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model.type_ = this.modelType();
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return model;
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}
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}
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static logger() {
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return this.db().logger();
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}
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static useUuid() {
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return false;
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}
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static byId(items: any[], id: string) {
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for (let i = 0; i < items.length; i++) {
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if (items[i].id === id) return items[i];
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}
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return null;
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}
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static defaultValues(fieldNames: string[]) {
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const output: any = {};
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for (const n of fieldNames) {
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output[n] = this.db().fieldDefaultValue(this.tableName(), n);
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}
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return output;
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}
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static modelIndexById(items: any[], id: string) {
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for (let i = 0; i < items.length; i++) {
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if (items[i].id === id) return i;
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}
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return -1;
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}
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static modelsByIds(items: any[], ids: string[]) {
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const output = [];
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for (let i = 0; i < items.length; i++) {
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if (ids.indexOf(items[i].id) >= 0) {
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output.push(items[i]);
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}
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}
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return output;
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}
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// Prefer the use of this function to compare IDs as it handles the case where
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// one ID is null and the other is "", in which case they are actually considered to be the same.
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static idsEqual(id1: string, id2: string) {
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if (!id1 && !id2) return true;
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if (!id1 && !!id2) return false;
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if (!!id1 && !id2) return false;
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return id1 === id2;
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}
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static modelTypeToName(type: number) {
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for (let i = 0; i < BaseModel.typeEnum_.length; i++) {
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const e = BaseModel.typeEnum_[i];
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if (e[1] === type) return e[0].substr(5).toLowerCase();
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}
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throw new Error(`Unknown model type: ${type}`);
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}
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static modelNameToType(name: string) {
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for (let i = 0; i < BaseModel.typeEnum_.length; i++) {
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const e = BaseModel.typeEnum_[i];
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const eName = e[0].substr(5).toLowerCase();
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if (eName === name) return e[1];
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}
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throw new Error(`Unknown model name: ${name}`);
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}
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static hasField(name: string) {
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const fields = this.fieldNames();
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return fields.indexOf(name) >= 0;
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}
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static fieldNames(withPrefix: boolean = false) {
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const output = this.db().tableFieldNames(this.tableName());
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if (!withPrefix) return output;
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const p = withPrefix === true ? this.tableName() : withPrefix;
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const temp = [];
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for (let i = 0; i < output.length; i++) {
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temp.push(`${p}.${output[i]}`);
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}
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return temp;
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}
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static fieldType(name: string, defaultValue: any = null) {
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const fields = this.fields();
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for (let i = 0; i < fields.length; i++) {
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if (fields[i].name === name) return fields[i].type;
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}
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if (defaultValue !== null) return defaultValue;
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throw new Error(`Unknown field: ${name}`);
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}
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static fields(): TableField[] {
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return this.db().tableFields(this.tableName());
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}
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static removeUnknownFields(model: any) {
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const newModel: any = {};
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for (const n in model) {
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if (!model.hasOwnProperty(n)) continue;
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if (!this.hasField(n) && n !== 'type_') continue;
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newModel[n] = model[n];
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}
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return newModel;
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}
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static new() {
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const fields = this.fields();
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const output: any = {};
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for (let i = 0; i < fields.length; i++) {
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const f = fields[i];
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output[f.name] = f.default;
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}
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return output;
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}
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static modOptions(options: any) {
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if (!options) {
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options = {};
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} else {
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options = Object.assign({}, options);
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}
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if (!('isNew' in options)) options.isNew = 'auto';
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if (!('autoTimestamp' in options)) options.autoTimestamp = true;
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if (!('userSideValidation' in options)) options.userSideValidation = false;
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return options;
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}
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static count(options: any = null) {
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if (!options) options = {};
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let sql = `SELECT count(*) as total FROM \`${this.tableName()}\``;
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if (options.where) sql += ` WHERE ${options.where}`;
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return this.db()
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.selectOne(sql)
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// eslint-disable-next-line promise/prefer-await-to-then -- Old code before rule was applied
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.then((r: any) => {
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return r ? r['total'] : 0;
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});
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}
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static load(id: string, options: any = null) {
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return this.loadByField('id', id, options);
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}
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static shortId(id: string) {
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return id.substr(0, 5);
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}
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static loadByPartialId(partialId: string) {
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return this.modelSelectAll(`SELECT * FROM \`${this.tableName()}\` WHERE \`id\` LIKE ?`, [`${partialId}%`]);
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}
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static applySqlOptions(options: any, sql: string, params: any[] = null) {
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if (!options) options = {};
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if (options.order && options.order.length) {
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sql += ` ORDER BY ${paginationToSql(options)}`;
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}
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if (options.limit) sql += ` LIMIT ${options.limit}`;
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return { sql: sql, params: params };
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}
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static async allIds(options: any = null) {
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const q = this.applySqlOptions(options, `SELECT id FROM \`${this.tableName()}\``);
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const rows = await this.db().selectAll(q.sql, q.params);
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return rows.map((r: any) => r.id);
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}
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static async all(options: any = null) {
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if (!options) options = {};
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if (!options.fields) options.fields = '*';
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let sql = `SELECT ${this.db().escapeFields(options.fields)} FROM \`${this.tableName()}\``;
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let params: any[] = [];
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if (options.where) {
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sql += ` WHERE ${options.where}`;
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if (options.whereParams) params = params.concat(options.whereParams);
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}
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const q = this.applySqlOptions(options, sql, params);
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return this.modelSelectAll(q.sql, q.params);
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}
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static async byIds(ids: string[], options: any = null) {
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if (!ids.length) return [];
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if (!options) options = {};
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if (!options.fields) options.fields = '*';
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let sql = `SELECT ${this.db().escapeFields(options.fields)} FROM \`${this.tableName()}\``;
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sql += ` WHERE id IN ("${ids.join('","')}")`;
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const q = this.applySqlOptions(options, sql);
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return this.modelSelectAll(q.sql);
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}
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static async search(options: any = null) {
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if (!options) options = {};
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if (!options.fields) options.fields = '*';
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const conditions = options.conditions ? options.conditions.slice(0) : [];
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const params = options.conditionsParams ? options.conditionsParams.slice(0) : [];
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if (options.titlePattern) {
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const pattern = options.titlePattern.replace(/\*/g, '%');
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conditions.push('title LIKE ?');
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params.push(pattern);
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}
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if ('limit' in options && options.limit <= 0) return [];
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let sql = `SELECT ${this.db().escapeFields(options.fields)} FROM \`${this.tableName()}\``;
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if (conditions.length) sql += ` WHERE ${conditions.join(' AND ')}`;
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const query = this.applySqlOptions(options, sql, params);
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return this.modelSelectAll(query.sql, query.params);
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}
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static modelSelectOne(sql: string, params: any[] = null) {
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if (params === null) params = [];
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return this.db()
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.selectOne(sql, params)
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// eslint-disable-next-line promise/prefer-await-to-then -- Old code before rule was applied
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.then((model: any) => {
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return this.filter(this.addModelMd(model));
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});
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}
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static modelSelectAll(sql: string, params: any[] = null) {
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if (params === null) params = [];
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return this.db()
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.selectAll(sql, params)
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// eslint-disable-next-line promise/prefer-await-to-then -- Old code before rule was applied
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.then((models: any[]) => {
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return this.filterArray(this.addModelMd(models));
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});
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}
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static loadByField(fieldName: string, fieldValue: any, options: any = null) {
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if (!options) options = {};
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if (!('caseInsensitive' in options)) options.caseInsensitive = false;
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if (!options.fields) options.fields = '*';
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let sql = `SELECT ${this.db().escapeFields(options.fields)} FROM \`${this.tableName()}\` WHERE \`${fieldName}\` = ?`;
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if (options.caseInsensitive) sql += ' COLLATE NOCASE';
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return this.modelSelectOne(sql, [fieldValue]);
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}
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static loadByFields(fields: any, options: any = null) {
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if (!options) options = {};
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if (!('caseInsensitive' in options)) options.caseInsensitive = false;
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if (!options.fields) options.fields = '*';
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const whereSql = [];
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const params = [];
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for (const fieldName in fields) {
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whereSql.push(`\`${fieldName}\` = ?`);
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params.push(fields[fieldName]);
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}
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let sql = `SELECT ${this.db().escapeFields(options.fields)} FROM \`${this.tableName()}\` WHERE ${whereSql.join(' AND ')}`;
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if (options.caseInsensitive) sql += ' COLLATE NOCASE';
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return this.modelSelectOne(sql, params);
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}
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static loadByTitle(fieldValue: any) {
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return this.modelSelectOne(`SELECT * FROM \`${this.tableName()}\` WHERE \`title\` = ?`, [fieldValue]);
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}
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static diffObjects(oldModel: any, newModel: any) {
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const output: any = {};
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const fields = this.diffObjectsFields(oldModel, newModel);
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for (let i = 0; i < fields.length; i++) {
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output[fields[i]] = newModel[fields[i]];
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}
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if ('type_' in newModel) output.type_ = newModel.type_;
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return output;
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}
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static diffObjectsFields(oldModel: any, newModel: any) {
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const output = [];
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for (const n in newModel) {
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if (!newModel.hasOwnProperty(n)) continue;
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if (n === 'type_') continue;
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if (!(n in oldModel) || newModel[n] !== oldModel[n]) {
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output.push(n);
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}
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}
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return output;
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}
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static modelsAreSame(oldModel: any, newModel: any) {
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const diff = this.diffObjects(oldModel, newModel);
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delete diff.type_;
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return !Object.getOwnPropertyNames(diff).length;
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}
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static saveMutex(modelOrId: any) {
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const noLockMutex = {
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acquire: function(): any {
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return null;
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},
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};
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if (!modelOrId) return noLockMutex;
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const modelId = typeof modelOrId === 'string' ? modelOrId : modelOrId.id;
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if (!modelId) return noLockMutex;
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let mutex = BaseModel.saveMutexes_[modelId];
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if (mutex) return mutex;
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mutex = new Mutex();
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BaseModel.saveMutexes_[modelId] = mutex;
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return mutex;
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}
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static releaseSaveMutex(modelOrId: any, release: Function) {
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if (!release) return;
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if (!modelOrId) return release();
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const modelId = typeof modelOrId === 'string' ? modelOrId : modelOrId.id;
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if (!modelId) return release();
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const mutex = BaseModel.saveMutexes_[modelId];
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if (!mutex) return release();
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delete BaseModel.saveMutexes_[modelId];
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release();
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}
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static saveQuery(o: any, options: any) {
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let temp: any = {};
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const fieldNames = this.fieldNames();
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for (let i = 0; i < fieldNames.length; i++) {
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const n = fieldNames[i];
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if (n in o) temp[n] = o[n];
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}
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// Remove fields that are not in the `fields` list, if provided.
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// Note that things like update_time, user_updated_time will still
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// be part of the final list of fields if autoTimestamp is on.
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// id also will stay.
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if (!options.isNew && options.fields) {
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const filtered: any = {};
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for (const k in temp) {
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if (!temp.hasOwnProperty(k)) continue;
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if (k !== 'id' && options.fields.indexOf(k) < 0) continue;
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filtered[k] = temp[k];
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}
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temp = filtered;
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}
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o = temp;
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let modelId = temp.id;
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let query: any = {};
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const timeNow = time.unixMs();
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if (options.autoTimestamp && this.hasField('updated_time')) {
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o.updated_time = timeNow;
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}
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// The purpose of user_updated_time is to allow the user to manually set the time of a note (in which case
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// options.autoTimestamp will be `false`). However note that if the item is later changed, this timestamp
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// will be set again to the current time.
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//
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// The technique to modify user_updated_time while keeping updated_time current (so that sync can happen) is to
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// manually set updated_time when saving and to set autoTimestamp to false, for example:
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// Note.save({ id: "...", updated_time: Date.now(), user_updated_time: 1436342618000 }, { autoTimestamp: false })
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if (options.autoTimestamp && this.hasField('user_updated_time')) {
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o.user_updated_time = timeNow;
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}
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if (options.isNew) {
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if (this.useUuid() && !o.id) {
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modelId = uuid.create();
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o.id = modelId;
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}
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if (!o.created_time && this.hasField('created_time')) {
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o.created_time = timeNow;
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}
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if (!o.user_created_time && this.hasField('user_created_time')) {
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o.user_created_time = o.created_time ? o.created_time : timeNow;
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}
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if (!o.user_updated_time && this.hasField('user_updated_time')) {
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o.user_updated_time = o.updated_time ? o.updated_time : timeNow;
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}
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query = Database.insertQuery(this.tableName(), o);
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} else {
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|
const where = { id: o.id };
|
|
const temp = Object.assign({}, o);
|
|
delete temp.id;
|
|
|
|
query = Database.updateQuery(this.tableName(), temp, where);
|
|
}
|
|
|
|
query.id = modelId;
|
|
query.modObject = o;
|
|
|
|
return query;
|
|
}
|
|
|
|
static userSideValidation(o: any) {
|
|
if (o.id && !o.id.match(/^[a-f0-9]{32}$/)) {
|
|
throw new Error('Validation error: ID must a 32-characters lowercase hexadecimal string');
|
|
}
|
|
|
|
const timestamps = ['user_updated_time', 'user_created_time'];
|
|
for (const k of timestamps) {
|
|
if ((k in o) && (typeof o[k] !== 'number' || isNaN(o[k]) || o[k] < 0)) throw new Error('Validation error: user_updated_time and user_created_time must be numbers greater than 0');
|
|
}
|
|
}
|
|
|
|
static async save(o: any, options: any = null) {
|
|
// When saving, there's a mutex per model ID. This is because the model returned from this function
|
|
// is basically its input `o` (instead of being read from the database, for performance reasons).
|
|
// This works well in general except if that model is saved simultaneously in two places. In that
|
|
// case, the output won't be up-to-date and would cause for example display issues with out-dated
|
|
// notes being displayed. This was an issue when notes were being synchronised while being decrypted
|
|
// at the same time.
|
|
|
|
const mutexRelease = await this.saveMutex(o).acquire();
|
|
|
|
options = this.modOptions(options);
|
|
options.isNew = this.isNew(o, options);
|
|
|
|
// Diff saving is an optimisation which takes a new version of the item and an old one,
|
|
// do a diff and save only this diff. IMPORTANT: When using this make sure that both
|
|
// models have been normalised using ItemClass.filter()
|
|
const isDiffSaving = options && options.oldItem && !options.isNew;
|
|
|
|
if (isDiffSaving) {
|
|
const newObject = BaseModel.diffObjects(options.oldItem, o);
|
|
newObject.type_ = o.type_;
|
|
newObject.id = o.id;
|
|
o = newObject;
|
|
}
|
|
|
|
o = this.filter(o);
|
|
|
|
if (options.userSideValidation) {
|
|
this.userSideValidation(o);
|
|
}
|
|
|
|
let queries = [];
|
|
const saveQuery = this.saveQuery(o, options);
|
|
const modelId = saveQuery.id;
|
|
|
|
queries.push(saveQuery);
|
|
|
|
if (options.nextQueries && options.nextQueries.length) {
|
|
queries = queries.concat(options.nextQueries);
|
|
}
|
|
|
|
let output = null;
|
|
|
|
try {
|
|
await this.db().transactionExecBatch(queries);
|
|
|
|
o = Object.assign({}, o);
|
|
if (modelId) o.id = modelId;
|
|
if ('updated_time' in saveQuery.modObject) o.updated_time = saveQuery.modObject.updated_time;
|
|
if ('created_time' in saveQuery.modObject) o.created_time = saveQuery.modObject.created_time;
|
|
if ('user_updated_time' in saveQuery.modObject) o.user_updated_time = saveQuery.modObject.user_updated_time;
|
|
if ('user_created_time' in saveQuery.modObject) o.user_created_time = saveQuery.modObject.user_created_time;
|
|
o = this.addModelMd(o);
|
|
|
|
if (isDiffSaving) {
|
|
for (const n in options.oldItem) {
|
|
if (!options.oldItem.hasOwnProperty(n)) continue;
|
|
if (n in o) continue;
|
|
o[n] = options.oldItem[n];
|
|
}
|
|
}
|
|
|
|
output = this.filter(o);
|
|
} finally {
|
|
this.releaseSaveMutex(o, mutexRelease);
|
|
}
|
|
|
|
return output;
|
|
}
|
|
|
|
static isNew(object: any, options: any) {
|
|
if (options && 'isNew' in options) {
|
|
// options.isNew can be "auto" too
|
|
if (options.isNew === true) return true;
|
|
if (options.isNew === false) return false;
|
|
}
|
|
|
|
return !object.id;
|
|
}
|
|
|
|
static filterArray(models: any[]) {
|
|
const output = [];
|
|
for (let i = 0; i < models.length; i++) {
|
|
output.push(this.filter(models[i]));
|
|
}
|
|
return output;
|
|
}
|
|
|
|
static filter(model: any) {
|
|
if (!model) return model;
|
|
|
|
const output = Object.assign({}, model);
|
|
for (const n in output) {
|
|
if (!output.hasOwnProperty(n)) continue;
|
|
|
|
// The SQLite database doesn't have booleans so cast everything to int
|
|
if (output[n] === true) {
|
|
output[n] = 1;
|
|
} else if (output[n] === false) {
|
|
output[n] = 0;
|
|
} else {
|
|
const t = this.fieldType(n, Database.TYPE_UNKNOWN);
|
|
if (t === Database.TYPE_INT) {
|
|
output[n] = !n ? 0 : parseInt(output[n], 10);
|
|
}
|
|
}
|
|
}
|
|
|
|
return output;
|
|
}
|
|
|
|
static delete(id: string) {
|
|
if (!id) throw new Error('Cannot delete object without an ID');
|
|
return this.db().exec(`DELETE FROM ${this.tableName()} WHERE id = ?`, [id]);
|
|
}
|
|
|
|
static async batchDelete(ids: string[], options: DeleteOptions = null) {
|
|
if (!ids.length) return;
|
|
options = this.modOptions(options);
|
|
const idFieldName = options.idFieldName ? options.idFieldName : 'id';
|
|
const sql = `DELETE FROM ${this.tableName()} WHERE ${idFieldName} IN ("${ids.join('","')}")`;
|
|
await this.db().exec(sql);
|
|
}
|
|
|
|
static db() {
|
|
if (!this.db_) throw new Error('Accessing database before it has been initialised');
|
|
return this.db_;
|
|
}
|
|
|
|
// static isReady() {
|
|
// return !!this.db_;
|
|
// }
|
|
}
|
|
|
|
for (let i = 0; i < BaseModel.typeEnum_.length; i++) {
|
|
const e = BaseModel.typeEnum_[i];
|
|
(BaseModel as any)[e[0]] = e[1];
|
|
}
|
|
|
|
export default BaseModel;
|