node-red-contrib-tableify/tableify/tableify.js

Uses npm package tableify to convert json into an html table. Returns the html in msg.payload

module.exports = function (RED) {
    "use strict";
    var tableify = require('tableify'); 
    var replaceall = require('replaceall');

    function ConvertJSONToTable(config) {
        RED.nodes.createNode(this, config);
        this.before = config.before;
        this.after = config.after;
        this.tableStyle = config.tableStyle;
        this.theadStyle = config.theadStyle;
        this.tbodyStyle = config.tbodyStyle;
        this.trStyle = config.trStyle;
        this.tdStyle = config.tdStyle;
        this.on('input', function(msg){
            var node = this;
            var before = msg.before;
            if(before === undefined || before === null || before === ""){
                before = node.before;
            }
            var after = msg.after;
            if(after === undefined || after === null || after === ""){
                after = node.after;
            }
            var tableNew = 'font-family:Arial;width:100%;border:1px solid #ccc;border-collapse: collapse;color:#667677;';
            var theadNew = 'border:1px solid #ccc;background:#6a9ef2;color:white !important; height:50px;padding:2px;';
            var tbodyNew = ''
            var trNew = 'border:1px solid #ccc;';
            var tdNew = 'border:1px solid #ccc;text-align:center;padding:3px;';

            var style= ' style="';
            var end = '"';
            var tableOld = '<table';
            var theadOld = '<thead';
            var tbodyOld = '<tbody';
            var trOld = '<tr';
            var tdOld = '<td';


            var tableStyle = msg.tableStyle;
            if(tableStyle === undefined || tableStyle === null || tableStyle === "" ){
                tableStyle = node.tableStyle;
                if(tableStyle === undefined || tableStyle === null || tableStyle === "" ){
                    tableStyle = tableNew;
                }
            }
            tableStyle = tableOld+style+tableStyle+end;

            var theadStyle = msg.theadStyle;
            if(theadStyle === undefined || theadStyle === null || theadStyle === "" ){
                theadStyle = node.theadStyle;
                if(theadStyle === undefined || theadStyle === null || theadStyle === "" ){
                    theadStyle = theadNew;
                }
            }
            theadStyle = theadOld+style+theadStyle+end;

            var tbodyStyle = msg.tbodyStyle;
            if(tbodyStyle === undefined || tbodyStyle === null || tbodyStyle === ""){
                tbodyStyle = node.tbodyStyle;
                if(tbodyStyle === undefined || tbodyStyle === null || tbodyStyle === "" ){
                    tbodyStyle = tbodyNew;
                }
            }
            tbodyStyle = tbodyOld+style+tbodyStyle+end;

            var trStyle = msg.trStyle;
            if(trStyle === undefined || trStyle === null || trStyle === "" ){
                trStyle = node.trStyle;
                if(trStyle === undefined || trStyle === null  || trStyle === ""){
                    trStyle = trNew;
                }
            }
            trStyle = trOld+style+trStyle+end

            var tdStyle = msg.tdStyle;
            if(tdStyle === undefined || tdStyle === null || tdStyle === "" ){
                tdStyle = node.tdStyle;
                if(tdStyle === undefined || tdStyle === null || tdStyle === ""){
                    tdStyle = tdNew;
                }
            }
            tdStyle = tdOld+style+tdStyle+end;

            

            if(msg.payload === undefined || msg.payload === null){
                node.log("Payload is blank. Handling by sending before, no results & after output");
                msg.payload = "";
                msg.payload += before +"<br>"
                msg.payload += "- No results to show. -";
                msg.payload += "<br>"+ after;
                node.send(msg);
            }else{
                var html = tableify(msg.payload);
                html = replaceall(tableOld,tableStyle,html);
                html = replaceall(theadOld,theadStyle,html);
                html = replaceall(tbodyOld, tbodyStyle, html);
                html = replaceall(trOld,trStyle,html);
                html = replaceall(tdOld, tdStyle,html);

                console.log(html);
                msg.payload = "";
                if(before != undefined && before != null && before != ""){
                    msg.payload += before;
                    msg.payload += "<br>";
                }
                msg.payload += html ;
                if(after != undefined && after != null && after != ""){
                    msg.payload += "<br>";
                    msg.payload += after;
                }
                node.send(msg);
            }
        });
        
    };

    RED.nodes.registerType("tableify", ConvertJSONToTable);
}