node-sybase-nu/dist/Format.js

packeage base in node-sybase

const Utils = require("./Utils");
const moment = require("moment");

const Format = {};
Format.tranfrom = (type, value) => {
    const vtype = typeof value;
    switch (type) {
        case Format.STRING:
            return Format.toString(value);
            break;
        case Format.INTEGER:
            return Format.toInteger(value);
            break;
        case Format.DATE:
            const result = Format.toDate(value);
            return result ? `'${result}'` : undefined;
            break;
        case Format.DECIMAL:
            return Format.toDecimal(value);
            break;
    }
};

Format.toString = (value) => {
    const vtype = typeof value;
    if ((!value && value !== 0) || vtype === "undefined") return "";

    let result = JSON.stringify(value);
    if (vtype === "string" || vtype === "number") result = value + "";
    if (vtype === "object") {
        if (Utils.validator.isDate(value)) {
            result = moment(value).format(Format.DATE_FORMAT);
        }
    }
    if (vtype === "function") {
        result = Format.toString(value());
    }
    return `'${result}'`.replace(/''/g, "'");
};

Format.toInteger = (value) => {
    const vtype = typeof value;
    let result;
    if ((!value && value !== 0) || vtype === "undefined") result = undefined;
    if (vtype === "string" || vtype === "number") result = parseInt(value);
    if (vtype === "function") {
        result = Format.toInteger(value());
    }
    if (result === NaN) result = undefined;
    return result;
};

Format.toDate = (value) => {
    const vtype = typeof value;
    let result;
    if (vtype === "object" && value instanceof Date) {
        result = moment(value).format(Format.DATE_FORMAT);
    }
    if (vtype === "string" && Utils.validator.isDate(value)) {
        result = moment(value).format(Format.DATE_FORMAT);
    }
    if (vtype === "function") {
        result = Format.toDate(value());
    }
    return result;
};

Format.toDecimal = (value) => {
    const vtype = typeof value;
    let result;
    if ((!value && value !== 0) || vtype === "undefined") result = undefined;
    if (vtype === "string" || vtype === "number") result = parseFloat(value);
    if (vtype === "function") {
        result = Format.toDecimal(value());
    }
    if (result === NaN) result = undefined;
    return result;
};

Format.STRING = "STRING";
Format.INTEGER = "INTEGER";
Format.DATE = "DATE";
Format.DECIMAL = "DECIMAL";

Format.DATE_FORMAT = "YYYY-MM-DD HH:mm:ss.SSS";

module.exports = Format;
module.exports.default = Format;
module.exports.Format = Format;