@eggjs/dal-runtime
Version:
tegg dal decorator
83 lines • 7.97 kB
JavaScript
"use strict";
var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
};
var _DataSource_instances, _DataSource_paginateCount;
Object.defineProperty(exports, "__esModule", { value: true });
exports.DataSource = void 0;
const TableModelInstanceBuilder_1 = require("./TableModelInstanceBuilder");
const PAGINATE_COUNT_WRAPPER = ['SELECT COUNT(0) as count FROM (', ') AS T'];
class DataSource {
constructor(tableModel, mysqlDataSource, sqlMap) {
_DataSource_instances.add(this);
this.tableModel = tableModel;
this.mysqlDataSource = mysqlDataSource;
this.sqlMap = sqlMap;
}
/**
* public for aop execute to implement sql hint append
* @param sqlName
* @param data
*/
async generateSql(sqlName, data) {
const sql = this.sqlMap.generate(sqlName, data, this.mysqlDataSource.timezone);
const sqlType = this.sqlMap.getType(sqlName);
const template = this.sqlMap.getTemplateString(sqlName);
return {
sql,
sqlType,
template,
};
}
async count(sqlName, data) {
const newData = Object.assign({ $$count: true }, data);
const executeSql = await this.generateSql(sqlName, newData);
return await __classPrivateFieldGet(this, _DataSource_instances, "m", _DataSource_paginateCount).call(this, executeSql.sql);
}
async execute(sqlName, data) {
const executeSql = await this.generateSql(sqlName, data);
const rows = await this.mysqlDataSource.query(executeSql.sql);
return rows.map(t => {
return TableModelInstanceBuilder_1.TableModelInstanceBuilder.buildInstance(this.tableModel, t);
});
}
async executeRaw(sqlName, data) {
const executeSql = await this.generateSql(sqlName, data);
return await this.mysqlDataSource.query(executeSql.sql);
}
async executeScalar(sqlName, data) {
const ret = await this.execute(sqlName, data);
if (!Array.isArray(ret))
return ret || null;
return ret[0] || null;
}
async executeRawScalar(sqlName, data) {
const ret = await this.executeRaw(sqlName, data);
if (!Array.isArray(ret))
return (ret || null);
return ret[0] || null;
}
async paginate(sqlName, data, currentPage, perPageCount) {
const limit = `LIMIT ${(currentPage - 1) * perPageCount}, ${perPageCount}`;
const sql = (await this.generateSql(sqlName, data)).sql + ' ' + limit;
const countSql = (await this.generateSql(sqlName, Object.assign({ $$count: true }, data))).sql;
const ret = await Promise.all([
this.mysqlDataSource.query(sql),
__classPrivateFieldGet(this, _DataSource_instances, "m", _DataSource_paginateCount).call(this, countSql),
]);
return {
total: Number(ret[1]),
pageNum: currentPage,
rows: ret[0].map(t => TableModelInstanceBuilder_1.TableModelInstanceBuilder.buildInstance(this.tableModel, t)),
};
}
}
exports.DataSource = DataSource;
_DataSource_instances = new WeakSet(), _DataSource_paginateCount = async function _DataSource_paginateCount(baseSQL) {
const sql = `${PAGINATE_COUNT_WRAPPER[0]}${baseSQL}${PAGINATE_COUNT_WRAPPER[1]}`;
const result = await this.mysqlDataSource.query(sql);
return result[0].count;
};
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