@iredium/butterfly
Version:
Express API Framework
211 lines (210 loc) • 9.75 kB
JavaScript
"use strict";
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Pagination = void 0;
var Pagination = /** @class */ (function () {
function Pagination(_a) {
var Model = _a.Model, searchKeyword = _a.searchKeyword, _b = _a.offset, offset = _b === void 0 ? 0 : _b, _c = _a.limit, limit = _c === void 0 ? 20 : _c, _d = _a.sort, sort = _d === void 0 ? { created_at: -1 } : _d, _e = _a.populates, populates = _e === void 0 ? [] : _e, _f = _a.query, query = _f === void 0 ? {} : _f, _g = _a.filteredQuery, filteredQuery = _g === void 0 ? {} : _g, _h = _a.options, options = _h === void 0 ? {} : _h;
this.Model = Model;
this.offset = offset;
this.limit = limit;
this.sort = sort;
this.populates = populates;
this.options = options;
this.searchKeyword = searchKeyword;
this.query = this.cleanQuery(query);
this.filteredQuery = this.cleanQuery(filteredQuery);
this.data = null;
this.meta = null;
this.total = 0;
this.totalPages = 0;
this.currentPage = 0;
}
Pagination.prototype.run = function () {
return __awaiter(this, void 0, void 0, function () {
var query, $text, result, index, _a, total;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
query = this.filteredQuery;
if (this.searchKeyword) {
$text = {
$search: this.searchKeyword
};
query.$text = $text;
}
result = this.Model.find(query)
.sort(this.sort)
.skip(this.offset)
.limit(this.limit);
for (index in this.populates) {
result.populate(this.populates[index]);
}
_a = this;
return [4 /*yield*/, result.exec()];
case 1:
_a.data = _b.sent();
return [4 /*yield*/, this.Model.countDocuments(query).exec()];
case 2:
total = _b.sent();
this.total = total;
this.meta = {
offset: this.offset,
limit: this.limit,
total: total
};
this.totalPages = Math.ceil(this.meta.total / this.limit);
this.currentPage = Math.floor((this.offset / this.limit) + 1);
return [2 /*return*/, this];
}
});
});
};
Pagination.prototype.getData = function () {
return this.data;
};
Pagination.prototype.getMeta = function () {
return {
currentItemCount: this.data ? this.data['length'] : [],
itemsPerPage: this.limit,
startIndex: this.offset,
totalItems: this.total,
pageIndex: this.currentPage,
totalPages: this.totalPages
};
};
Pagination.prototype.links = function () {
var pages = [];
var currentPage = this.currentPage;
var previousPage = this.currentPage - 1;
var nextPage = this.currentPage + 1;
if (this.totalPages <= 7) {
for (var page = 1; page <= this.totalPages; page++) {
pages.push(this.createPageInfo(page));
}
}
else {
var linkCount = 7;
var min = 2;
var max = linkCount - 1;
var medianPadding = 1;
if (currentPage - medianPadding > min && currentPage + medianPadding < this.totalPages - 1) {
pages.push(this.createPageInfo(1));
pages.push(this.createPageInfo(null));
for (var page = currentPage - medianPadding; page <= currentPage + medianPadding; page++) {
pages.push(this.createPageInfo(page));
}
pages.push(this.createPageInfo(null));
pages.push(this.createPageInfo(this.totalPages));
}
else if (currentPage - medianPadding <= min) {
for (var page = 1; page < max; page++) {
pages.push(this.createPageInfo(page));
}
pages.push(this.createPageInfo(null));
pages.push(this.createPageInfo(this.totalPages));
}
else if (currentPage + medianPadding >= max) {
for (var page = this.totalPages; page > this.totalPages - (linkCount - 2); page--) {
pages.unshift(this.createPageInfo(page));
}
pages.unshift(this.createPageInfo(null));
pages.unshift(this.createPageInfo(1));
}
}
return {
current: this.createPageInfo(currentPage),
prev: this.createPageInfo(previousPage),
next: this.createPageInfo(nextPage),
pages: pages
};
};
Pagination.prototype.createPageInfo = function (page) {
if (!page || page < 1 || page > this.totalPages)
return {
page: null
};
return {
page: page,
current: page.toString() === this.currentPage.toString(),
queryString: this.buildQueryString(page)
};
};
Pagination.prototype.buildQueryString = function (page) {
var offset = (page - 1) * this.limit;
var queryString = '';
var query = __assign(__assign(__assign({}, this.meta), this.query), { offset: offset });
delete query.deleted_at;
delete query.total;
for (var key in query) {
if (!queryString)
queryString = '?';
queryString += key + "=" + query[key] + "&";
}
if (queryString[queryString.length - 1] === '&')
queryString = queryString.substring(0, queryString.length - 1);
return queryString;
};
Pagination.prototype.cleanQuery = function (query) {
var filteredQuery = Object.assign({ deleted_at: null }, query);
for (var key in filteredQuery) {
if (filteredQuery[key] === '')
delete filteredQuery[key];
if (filteredQuery[key] === 'null')
filteredQuery[key] = null;
}
if (this.options.withDeleted)
delete filteredQuery.deleted_at;
delete filteredQuery.offset;
delete filteredQuery.limit;
return filteredQuery;
};
return Pagination;
}());
exports.Pagination = Pagination;