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import { Model, Document, Types, DocumentQuery, Query, Connection } from 'mongoose';
import { pick, PartialDeep, groupBy } from 'lodash';
import { KeyValue } from '../types/data.types';
const treeify = require('array-to-tree');
export class Repository {
static async remove(model: Model<Document>, id: string): Promise<any> {
const ids = id.split(',');
Iif (ids.length > 1) {
return this.removeItems(model, ids);
} else {
return new Promise((resolve, reject) => {
model.findOneAndRemove({ _id: id }).exec((err, res) => {
Iif (err) {
reject(err);
} else {
Eif (res)
resolve(true);
else {
resolve(false);
}
}
});
});
}
}
static async removeItems(model: Model<Document>, ids: string[]): Promise<any> {
return new Promise((resolve, reject) => {
model.remove({ _id: { $in: ids } }).exec((err, res) => {
if (err) {
reject(err);
} else {
resolve(true);
}
});
});
}
static async get(model: Model<Document>, id: string, populates?: any[]): Promise<any> {
const option: any = {};
return new Promise((resolve, reject) => {
Iif (populates && populates.length) {
option.populate = populates;
}
model.findOne({ _id: id }, null, option).exec((err, res: any) => {
Iif (err) {
reject(err);
} else {
resolve(res);
}
});
});
}
static async search(model: Model<Document>,
keyword?: string, id?: string,
category = '', limit: number = 10, labelField = 'name', valueField = '_id', searchField = 'name'): Promise<Array<KeyValue>> {
const critical: any = {};
critical[searchField] = new RegExp(keyword, 'i');
const query: any = keyword ? critical : {};
Iif (category) {
query.category = category;
}
const fields: any = {};
fields[labelField] = 1;
fields[valueField] = 1;
const docs = await model.find(query).select(fields)
.limit(limit)
.exec() || [];
Iif (id && (Types.ObjectId.isValid(id) || valueField !== '_id')) {
const conditions: any = {};
conditions[valueField] = id;
const selected = await model.findOne(conditions).select(fields);
if (selected) {
const found = docs.findIndex((doc: any) => doc[valueField] == id);
if (found === -1) {
docs.push(selected);
}
}
}
return docs.map((item: any) => {
const result: KeyValue = {
label: item[labelField],
value: item[valueField]
};
return result;
});
}
static async deeplyFind(
query: Model<Document>,
id: string
): Promise<string[]> {
let current: any = await query.findOne({ _id: id }).select({ _id: 1, parent: 1 }).exec();
Iif (!current) { return []; }
const items = await query.find().select({ _id: 1, parent: 1 }).exec() || [];
const currentId = current.toObject()._id;
const data = items.map(item => item.toObject());
const cached = groupBy(data, 'parent');
const children = cached[currentId];
Iif (!Array.isArray(children)) {
return [currentId];
}
const result: string[] = [currentId];
const stack = [];
stack.push(...children);
while (stack.length > 0) {
const node: any = stack.pop();
result.push(node._id);
const items = cached[node._id];
Iif (Array.isArray(items)) {
for (let item of items) {
stack.push(item);
}
}
}
return result;
}
static async query<T extends Document, TResponse>(
query: DocumentQuery<T[], T>,
collection: DocumentQuery<T[], T>,
page: number = 1,
size: number = 20,
fields: string[]
) {
page = page - 1;
Iif (page < 0) {
page = 0;
}
const countPromise = collection.count().exec();
const pure = (doc: Document, fields: Array<string>) => {
Eif (fields && Array.isArray(fields)) {
return pick(doc, fields);
} else {
return doc.toJSON();
}
}
const docsPromise = query.skip(page * size).limit(size).exec();
const result = await Promise.all([countPromise, docsPromise]);
let [count, docs] = result;
docs = docs || [];
const list = docs.map((doc) => pure(doc, fields) as TResponse);
return {
list: list,
total: count
}
}
static mergeProfile(user?: Document) {
if (!user) {
return null;
}
const doc = user.toObject();
const instance = Object.assign({}, doc, doc.profile);
instance.id = doc._id;
delete instance.profile;
delete instance._id;
delete instance.__v;
delete instance.password;
instance.createdAt = doc.createdAt;
return instance;
}
} |