quickpostgres/dist/methods/push.js

An easy, beginner-friendly PostgreSQL database wrapper similar to quick.db.

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const get_1 = __importDefault(require("lodash/get"));
const set_1 = __importDefault(require("lodash/set"));
exports.default = async (db, params, options) => {
    // Fetch entry
    let fetched = await db.query(`SELECT * FROM ${options.table} WHERE ID = ($1)`, [params.id]);
    // If not found, create empty row
    if (!fetched) {
        await db.query(`INSERT INTO ${options.table} (ID,json) VALUES ($1,$2)`, [
            params.id,
            "{}",
        ]);
        fetched = await db.query(`SELECT * FROM ${options.table} WHERE ID = ($1)`, [
            params.id,
        ]);
    }
    // Check if a target was supplied
    if (params.ops.target) {
        fetched = JSON.parse(fetched.rows[0].json);
        params.data = JSON.parse(params.data);
        if (typeof fetched !== "object")
            throw new TypeError(`Cannot push into a non-object. (ID: ${params.id})`);
        let oldArray = (0, get_1.default)(fetched, params.ops.target);
        if (oldArray === undefined)
            oldArray = [];
        else if (!Array.isArray(oldArray))
            throw new TypeError(`Fetched value is not an array. (ID: ${params.id}`);
        oldArray.push(params.data);
        params.data = (0, set_1.default)(fetched, params.ops.target, oldArray);
    }
    else {
        if (fetched.rows[0].json)
            fetched.rows[0].json = [];
        else
            fetched.rows[0].json = JSON.parse(fetched.rows[0].json);
        params.data = JSON.parse(params.data);
        if (!Array.isArray(fetched.rows[0].json))
            throw new TypeError(`Fetched value is not an array. (ID: ${params.id}`);
        fetched.rows[0].push(params.data);
        params.data = fetched.rows[0].json;
    }
    // Stringify data
    if (typeof params.data !== "string")
        params.data = JSON.stringify(params.data);
    // Update entry with new data
    await db.query(`UPDATE ${options.table} SET json = ($1) WHERE ID = ($2)`, [
        params.data,
        params.id,
    ]);
    // Fetch and return with new data
    let newData = (await db.query(`SELECT * FROM ${options.table} WHERE ID = ($1)`, [
        params.id,
    ])).rows[0].json;
    if (newData === "{}")
        return null;
    else {
        newData = JSON.parse(newData);
        return newData;
    }
};
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