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joplin/ReactNativeClient/lib/models/Folder.js

239 lines
6.7 KiB
JavaScript

const BaseModel = require('lib/BaseModel.js');
const { promiseChain } = require('lib/promise-utils.js');
const { time } = require('lib/time-utils.js');
const Note = require('lib/models/Note.js');
const Setting = require('lib/models/Setting.js');
const { Database } = require('lib/database.js');
const { _ } = require('lib/locale.js');
const moment = require('moment');
const BaseItem = require('lib/models/BaseItem.js');
const lodash = require('lodash');
class Folder extends BaseItem {
static tableName() {
return 'folders';
}
static async serialize(folder) {
let fieldNames = this.fieldNames();
fieldNames.push('type_');
//lodash.pull(fieldNames, 'parent_id');
return super.serialize(folder, 'folder', fieldNames);
}
static modelType() {
return BaseModel.TYPE_FOLDER;
}
static newFolder() {
return {
id: null,
title: '',
}
}
static async findUniqueFolderTitle(title) {
let counter = 1;
let titleToTry = title;
while (true) {
const folder = await this.loadByField('title', titleToTry);
if (!folder) return titleToTry;
titleToTry = title + ' (' + counter + ')';
counter++;
if (counter >= 100) titleToTry = title + ' (' + ((new Date()).getTime()) + ')';
if (counter >= 1000) throw new Error('Cannot find unique title');
}
}
static noteIds(parentId) {
return this.db().selectAll('SELECT id FROM notes WHERE is_conflict = 0 AND parent_id = ?', [parentId]).then((rows) => {
let output = [];
for (let i = 0; i < rows.length; i++) {
let row = rows[i];
output.push(row.id);
}
return output;
});
}
static async subFolderIds(parentId) {
const rows = await this.db().selectAll('SELECT id FROM folders WHERE parent_id = ?', [parentId]);
return rows.map(r => r.id);
}
static async noteCount(parentId) {
let r = await this.db().selectOne('SELECT count(*) as total FROM notes WHERE is_conflict = 0 AND parent_id = ?', [parentId]);
return r ? r.total : 0;
}
static markNotesAsConflict(parentId) {
let query = Database.updateQuery('notes', { is_conflict: 1 }, { parent_id: parentId });
return this.db().exec(query);
}
static async delete(folderId, options = null) {
if (!options) options = {};
if (!('deleteChildren' in options)) options.deleteChildren = true;
let folder = await Folder.load(folderId);
if (!folder) return; // noop
if (options.deleteChildren) {
let noteIds = await Folder.noteIds(folderId);
for (let i = 0; i < noteIds.length; i++) {
await Note.delete(noteIds[i]);
}
let subFolderIds = await Folder.subFolderIds(folderId);
for (let i = 0; i < subFolderIds.length; i++) {
await Folder.delete(subFolderIds[i]);
}
}
await super.delete(folderId, options);
this.dispatch({
type: 'FOLDER_DELETE',
id: folderId,
});
}
static conflictFolderTitle() {
return _('Conflicts');
}
static conflictFolderId() {
return 'c04f1c7c04f1c7c04f1c7c04f1c7c04f';
}
static conflictFolder() {
return {
type_: this.TYPE_FOLDER,
id: this.conflictFolderId(),
parent_id: '',
title: this.conflictFolderTitle(),
updated_time: time.unixMs(),
user_updated_time: time.unixMs(),
};
}
static async all(options = null) {
let output = await super.all(options);
if (options && options.includeConflictFolder) {
let conflictCount = await Note.conflictedCount();
if (conflictCount) output.push(this.conflictFolder());
}
return output;
}
static async allAsTree(options = null) {
const all = await this.all(options);
// https://stackoverflow.com/a/49387427/561309
function getNestedChildren(models, parentId) {
const nestedTreeStructure = [];
const length = models.length;
for (let i = 0; i < length; i++) {
const model = models[i];
if (model.parent_id == parentId) {
const children = getNestedChildren(models, model.id);
if (children.length > 0) {
model.children = children;
}
nestedTreeStructure.push(model);
}
}
return nestedTreeStructure;
}
return getNestedChildren(all, '');
}
static load(id) {
if (id == this.conflictFolderId()) return this.conflictFolder();
return super.load(id);
}
static defaultFolder() {
return this.modelSelectOne('SELECT * FROM folders ORDER BY created_time DESC LIMIT 1');
}
static async canNestUnder(folderId, targetFolderId) {
if (folderId === targetFolderId) return false;
const conflictFolderId = Folder.conflictFolderId();
if (folderId == conflictFolderId || targetFolderId == conflictFolderId) return false;
if (!targetFolderId) return true;
while (true) {
let folder = await Folder.load(targetFolderId);
if (!folder.parent_id) break;
if (folder.parent_id === folderId) return false;
targetFolderId = folder.parent_id;
}
return true;
}
static async moveToFolder(folderId, targetFolderId) {
if (!(await this.canNestUnder(folderId, targetFolderId))) throw new Error(_('Cannot move notebook to this location'));
// When moving a note to a different folder, the user timestamp is not updated.
// However updated_time is updated so that the note can be synced later on.
const modifiedFolder = {
id: folderId,
parent_id: targetFolderId,
updated_time: time.unixMs(),
};
return Folder.save(modifiedFolder, { autoTimestamp: false });
}
// These "duplicateCheck" and "reservedTitleCheck" should only be done when a user is
// manually creating a folder. They shouldn't be done for example when the folders
// are being synced to avoid any strange side-effects. Technically it's possible to
// have folders and notes with duplicate titles (or no title), or with reserved words.
static async save(o, options = null) {
if (!options) options = {};
if (options.userSideValidation === true) {
if (!('duplicateCheck' in options)) options.duplicateCheck = true;
if (!('reservedTitleCheck' in options)) options.reservedTitleCheck = true;
if (!('stripLeftSlashes' in options)) options.stripLeftSlashes = true;
}
if (options.stripLeftSlashes === true && o.title) {
while (o.title.length && (o.title[0] == '/' || o.title[0] == "\\")) {
o.title = o.title.substr(1);
}
}
if (options.duplicateCheck === true && o.title) {
let existingFolder = await Folder.loadByTitle(o.title);
if (existingFolder && existingFolder.id != o.id) throw new Error(_('A notebook with this title already exists: "%s"', o.title));
}
if (options.reservedTitleCheck === true && o.title) {
if (o.title == Folder.conflictFolderTitle()) throw new Error(_('Notebooks cannot be named "%s", which is a reserved title.', o.title));
}
return super.save(o, options).then((folder) => {
this.dispatch({
type: 'FOLDER_UPDATE_ONE',
item: folder,
});
return folder;
});
}
}
module.exports = Folder;