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joplin/ReactNativeClient/lib/models/base-item.js
2017-07-13 22:26:45 +01:00

327 lines
9.4 KiB
JavaScript

import { BaseModel } from 'lib/base-model.js';
import { Database } from 'lib/database.js';
import { time } from 'lib/time-utils.js';
import moment from 'moment';
class BaseItem extends BaseModel {
static useUuid() {
return true;
}
static loadClass(className, classRef) {
for (let i = 0; i < BaseItem.syncItemDefinitions_.length; i++) {
if (BaseItem.syncItemDefinitions_[i].className == className) {
BaseItem.syncItemDefinitions_[i].classRef = classRef;
return;
}
}
throw new Error('Invalid class name: ' + className);
}
// Need to dynamically load the classes like this to avoid circular dependencies
static getClass(name) {
for (let i = 0; i < BaseItem.syncItemDefinitions_.length; i++) {
if (BaseItem.syncItemDefinitions_[i].className == name) {
return BaseItem.syncItemDefinitions_[i].classRef;
}
}
throw new Error('Invalid class name: ' + name);
}
static async stats() {
let output = {
items: {},
total: {},
};
let itemCount = 0;
let syncedCount = 0;
for (let i = 0; i < BaseItem.syncItemDefinitions_.length; i++) {
let d = BaseItem.syncItemDefinitions_[i];
let ItemClass = this.getClass(d.className);
let o = {
total: await ItemClass.count(),
synced: await ItemClass.syncedCount(),
};
output.items[d.className] = o;
itemCount += o.total;
syncedCount += o.synced;
}
output.total = {
total: itemCount,
synced: syncedCount,
};
output.toDelete = {
total: await this.deletedItemCount(),
};
return output;
}
static async syncedCount() {
const ItemClass = this.itemClass(this.modelType());
const r = await this.db().selectOne('SELECT count(*) as total FROM `' + ItemClass.tableName() + '` WHERE updated_time <= sync_time');
return r.total;
}
static systemPath(itemOrId) {
if (typeof itemOrId === 'string') return itemOrId + '.md';
return itemOrId.id + '.md';
}
static itemClass(item) {
if (!item) throw new Error('Item cannot be null');
if (typeof item === 'object') {
if (!('type_' in item)) throw new Error('Item does not have a type_ property');
return this.itemClass(item.type_);
} else {
for (let i = 0; i < BaseItem.syncItemDefinitions_.length; i++) {
let d = BaseItem.syncItemDefinitions_[i];
if (Number(item) == d.type) return this.getClass(d.className);
}
throw new Error('Unknown type: ' + item);
}
}
// Returns the IDs of the items that have been synced at least once
static async syncedItems() {
let folders = await this.getClass('Folder').modelSelectAll('SELECT id FROM folders WHERE sync_time > 0');
let notes = await this.getClass('Note').modelSelectAll('SELECT id FROM notes WHERE is_conflict = 0 AND sync_time > 0');
let resources = await this.getClass('Resource').modelSelectAll('SELECT id FROM resources WHERE sync_time > 0');
let tags = await this.getClass('Tag').modelSelectAll('SELECT id FROM tags WHERE sync_time > 0');
let noteTags = await this.getClass('NoteTag').modelSelectAll('SELECT id FROM note_tags WHERE sync_time > 0');
return folders.concat(notes).concat(resources).concat(tags).concat(noteTags);
}
static pathToId(path) {
let s = path.split('.');
return s[0];
}
static loadItemByPath(path) {
return this.loadItemById(this.pathToId(path));
}
static async loadItemById(id) {
let classes = this.syncItemClassNames();
for (let i = 0; i < classes.length; i++) {
let item = await this.getClass(classes[i]).load(id);
if (item) return item;
}
return null;
}
static loadItemByField(itemType, field, value) {
let ItemClass = this.itemClass(itemType);
return ItemClass.loadByField(field, value);
}
static loadItem(itemType, id) {
let ItemClass = this.itemClass(itemType);
return ItemClass.load(id);
}
static deleteItem(itemType, id) {
let ItemClass = this.itemClass(itemType);
return ItemClass.delete(id);
}
static async delete(id, options = null) {
return this.batchDelete([id], options);
// let trackDeleted = true;
// if (options && options.trackDeleted !== null && options.trackDeleted !== undefined) trackDeleted = options.trackDeleted;
// await super.delete(id, options);
// if (trackDeleted) {
// await this.db().exec('INSERT INTO deleted_items (item_type, item_id, deleted_time) VALUES (?, ?, ?)', [this.modelType(), id, time.unixMs()]);
// }
}
static async batchDelete(ids, options = null) {
let trackDeleted = true;
if (options && options.trackDeleted !== null && options.trackDeleted !== undefined) trackDeleted = options.trackDeleted;
await super.batchDelete(ids, options);
if (trackDeleted) {
let queries = [];
let now = time.unixMs();
for (let i = 0; i < ids.length; i++) {
queries.push({
sql: 'INSERT INTO deleted_items (item_type, item_id, deleted_time) VALUES (?, ?, ?)',
params: [this.modelType(), ids[i], now],
});
}
await this.db().transactionExecBatch(queries);
}
}
static deletedItems() {
return this.db().selectAll('SELECT * FROM deleted_items');
}
static async deletedItemCount() {
let r = await this.db().selectOne('SELECT count(*) as total FROM deleted_items');
return r['total'];
}
static remoteDeletedItem(itemId) {
return this.db().exec('DELETE FROM deleted_items WHERE item_id = ?', [itemId]);
}
static serialize_format(propName, propValue) {
if (['created_time', 'updated_time', 'sync_time'].indexOf(propName) >= 0) {
if (!propValue) return '';
propValue = moment.unix(propValue / 1000).utc().format('YYYY-MM-DDTHH:mm:ss.SSS') + 'Z';
} else if (propValue === null || propValue === undefined) {
propValue = '';
}
return propValue;
}
static unserialize_format(type, propName, propValue) {
if (propName[propName.length - 1] == '_') return propValue; // Private property
let ItemClass = this.itemClass(type);
if (['created_time', 'updated_time'].indexOf(propName) >= 0) {
if (!propValue) return 0;
propValue = moment(propValue, 'YYYY-MM-DDTHH:mm:ss.SSSZ').format('x');
} else {
propValue = Database.formatValue(ItemClass.fieldType(propName), propValue);
}
return propValue;
}
static async serialize(item, type = null, shownKeys = null) {
item = this.filter(item);
let output = {};
if ('title' in item && shownKeys.indexOf('title') >= 0) {
output.title = item.title;
}
if ('body' in item && shownKeys.indexOf('body') >= 0) {
output.body = item.body;
}
output.props = [];
for (let i = 0; i < shownKeys.length; i++) {
let key = shownKeys[i];
if (key == 'title' || key == 'body') continue;
let value = null;
if (typeof key === 'function') {
let r = await key();
key = r.key;
value = r.value;
} else {
value = this.serialize_format(key, item[key]);
}
output.props.push(key + ': ' + value);
}
let temp = [];
if (output.title) temp.push(output.title);
if (output.body) temp.push(output.body);
if (output.props.length) temp.push(output.props.join("\n"));
return temp.join("\n\n");
}
static async unserialize(content) {
let lines = content.split("\n");
let output = {};
let state = 'readingProps';
let body = [];
for (let i = lines.length - 1; i >= 0; i--) {
let line = lines[i];
if (state == 'readingProps') {
line = line.trim();
if (line == '') {
state = 'readingBody';
continue;
}
let p = line.indexOf(':');
if (p < 0) throw new Error('Invalid property format: ' + line + ": " + content);
let key = line.substr(0, p).trim();
let value = line.substr(p + 1).trim();
output[key] = value;
} else if (state == 'readingBody') {
body.splice(0, 0, line);
}
}
if (!output.type_) throw new Error('Missing required property: type_: ' + content);
output.type_ = Number(output.type_);
if (body.length) {
let title = body.splice(0, 2);
output.title = title[0];
}
if (body.length) output.body = body.join("\n");
for (let n in output) {
if (!output.hasOwnProperty(n)) continue;
output[n] = await this.unserialize_format(output.type_, n, output[n]);
}
return output;
}
static async itemsThatNeedSync(limit = 100) {
let items = await this.getClass('Folder').modelSelectAll('SELECT * FROM folders WHERE sync_time < updated_time LIMIT ' + limit);
if (items.length) return { hasMore: true, items: items };
items = await this.getClass('Resource').modelSelectAll('SELECT * FROM resources WHERE sync_time < updated_time LIMIT ' + limit);
if (items.length) return { hasMore: true, items: items };
items = await this.getClass('Note').modelSelectAll('SELECT * FROM notes WHERE sync_time < updated_time AND is_conflict = 0 LIMIT ' + limit);
if (items.length) return { hasMore: true, items: items };
items = await this.getClass('Tag').modelSelectAll('SELECT * FROM tags WHERE sync_time < updated_time LIMIT ' + limit);
if (items.length) return { hasMore: true, items: items };
items = await this.getClass('NoteTag').modelSelectAll('SELECT * FROM note_tags WHERE sync_time < updated_time LIMIT ' + limit);
return { hasMore: items.length >= limit, items: items };
}
static syncItemClassNames() {
return BaseItem.syncItemDefinitions_.map((def) => {
return def.className;
});
}
}
// Also update:
// - itemsThatNeedSync()
// - syncedItems()
BaseItem.syncItemDefinitions_ = [
{ type: BaseModel.TYPE_NOTE, className: 'Note' },
{ type: BaseModel.TYPE_FOLDER, className: 'Folder' },
{ type: BaseModel.TYPE_RESOURCE, className: 'Resource' },
{ type: BaseModel.TYPE_TAG, className: 'Tag' },
{ type: BaseModel.TYPE_NOTE_TAG, className: 'NoteTag' },
];
export { BaseItem };