Time Stamp Not Captured in pdf which I generated

PRABHAKAR82 · 2 June 2023 06:28

I generate a pdf report from sql query,all the row is filled but Time stamp row is empty.

"This is My sql query"

var fromdate = msg.payload.From;
var todate = msg.payload.To;
msg.topic = "SELECT * FROM `node-red`.`final` where Date_Time between '" + fromdate + "' And '" + todate + "';";
return msg;

"This is Function node script for pdf report generation which i used"

let payload = {
content: [

    {
        pageSize: 'A4',
        pageOrientation: 'portrait',
        text: 'Confined Area Monitoring Report:', fontSize: 14, bold: true, margin: [0, 20, 0, 8]
    },
    {
        style: 'tableExample',

        table: {
            headerRows: 1,
            body: [
                Object.keys(msg.payload[0]).map(key => { return { text: key, style: 'tableHeader' } })
            ]
        },

        layout: 'lightHorizontalLines'
    },

],
    styles: {
    header: {
        fontSize: 18,
            bold: true,
                margin: [0, 10, 0, 10]
    },
    subheader: {
        fontSize: 16,
            bold: true,
                margin: [0, 10, 0, 5]
    },
    tableExample: {
        margin: [0, 5, 0, 15]
    },
    tableHeader: {
        bold: true,
            fontSize: 13,
                color: 'black'
    }
},
defaultStyle: {
    // alignment: 'justify'

}
};
Object.values(msg.payload).forEach(obj => {
    payload.content[1].table.body.push(Object.values(obj));
})

msg.payload = payload;

return msg;

Admin Edit: wrap code in triple backticks to preserve formatting and improve readability

Steve-Mcl · 2 June 2023 08:55

It is likely the Date_Time is a Date object. You should call .toString() (or similar) to get a string from the date object before adding it to the Doc Def content.

i.e. add something like:

const data = msg.payload.map(e=> {
  e.Date_Time =   e.Date_Time.toString()
  return e
}
// use data when populating the doc def content
// ...
// ...
// ...
return msg;

PRABHAKAR82 · 2 June 2023 14:24

I am trying to add this but error is coming.I am new on node red
could you please send the whole script to generate pdf with time stamp.
Thanks

Steve-Mcl · 2 June 2023 14:56

What error - what does it say exactly?

Also, show us the schema of your database so I can understand what the field Date_Time is.

Also, a sample of data copied from the debug would help. (use the "Copy Value" button against one of the array entries on the debug panel)

PRABHAKAR82 · 2 June 2023 15:18

sample data from the debug

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admin edit: fixed json sample data and wrapped in triple backticks

Steve-Mcl · 2 June 2023 15:28

And this

PRABHAKAR82 · 2 June 2023 20:21

Pdf is not generated when i add in existing function node .I am little bit confused wheather i have to add new function node and write this script which is given by you or i have to add add it on existing one.

PRABHAKAR82 · 3 June 2023 05:56

TypeError: Cannot read properties of undefined (reading 'toString')

PRABHAKAR82 · 3 June 2023 06:03

let payload = {
content: [

    {
        pageSize: 'A4',
        pageOrientation: 'portrait',
        text: 'Confined Area Monitoring Report:', fontSize: 14, bold: true, margin: [0, 20, 0, 8]
    },
    {
        style: 'tableExample',

        table: {
            headerRows: 1,
            body: [
                Object.keys(msg.payload[0]).map(key => key.Date_Time = key.Date_Time.toString(),
                { return: { } })
            ]
        },

        layout: 'lightHorizontalLines'
    },

],
    styles: {
    header: {
        fontSize: 18,
            bold: true,
                margin: [0, 10, 0, 10]
    },
    subheader: {
        fontSize: 16,
            bold: true,
                margin: [0, 10, 0, 5]
    },
    tableExample: {
        margin: [0, 5, 0, 15]
    },
    tableHeader: {
        bold: true,
            fontSize: 13,
                color: 'black'
    }
},
defaultStyle: {
    // alignment: 'justify'

}
};
Object.values(msg.payload).forEach(obj => {
    payload.content[1].table.body.push(Object.values(obj));
})

msg.payload = payload;

return msg;

smanjunath211 · 3 June 2023 08:47

i use mysql query and pdfmake too, and have been generating timestamp in pdf without an issue.
i am not sure,if this would help you in anyway, but i get the datetime in below format from mysql

date_format(fdate,'%d-%b %H:%i') as 'From', which results in a string output in the form as shown below.

PRABHAKAR82 · 3 June 2023 08:50

Could you please send me the whole script of function node to generate pdf.

smanjunath211 · 3 June 2023 10:17

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HEADER","tot":"str"},{"t":"set","p":"machine00","pt":"flow","to":"Machine-1","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":1550,"y":2730,"wires":[["89d80d50efd18773"]]},{"id":"89d80d50efd18773","type":"function","z":"400bc99efba52b23","name":"data to pdf","func":"///\nlet query3Data = []\nmsg.payload.query3.forEach(obj => { query3Data.push(Object.entries(obj).map(([key, value]) => { return !isNaN(value) ? { text: value, alignment: 'right' } : { text: value, alignment: 'left' } }))})\n\n///\n\n\n\nlet tableData = {\n\n//    pageSize: 'a3',\n    pageSize: {\n    width: 1050,\n    height: 'auto'\n    },\n    pageOrientation: 'portrait',\n    content: [\n        { text: flow.get(\"pdf_header00\"), fontSize: 20, bold: true, alignment: 'center', color: 'green', margin: [12, 0, 12, 0] },\n        { text: ' ', fontSize: 20, bold: true, margin: [0, 0, 0, 0] },\n\n{ text: flow.get(\"sub_header00\"), fontSize: 14, bold: true, margin: [12, 5, 12, 5] },        \n\n        { text: '--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------', fontSize: 10, bold: false, color: 'orange', margin: [0, 0, 0, 5] },\n\n//  Table 4\n        { text: flow.get(\"machine00\"), fontSize: 14, bold: true, margin: [12, 5, 12, 5] },\n        {\n            style: 'tableExample',\n            table: {\n                headerRows: 1,\n                widths: [100, 50, 50, 50, 50,],\n                body: [\n                    Object.keys(msg.payload.query3[0]).map(key => { return { text: key, alignment: key.startsWith(\"Duration\") ? \"right\" : \"left\",style: 'tableHeader' } }),\n                    ...query3Data\n                ]\n            },\n            layout: 'lightHorizontalLines'\n        },\n],\n\n    styles: {\n        header: {\n            fontSize: 12,\n            bold: true,\n            margin: [12, 2, 12, 2]\n        },\n        subheader: {\n            fontSize: 12,\n            bold: true,\n            margin: [12, 2, 12, 2]\n        },\n        tableExample: {\n            fontSize: 10,\n            bold: false,\n        },\n        tableExample1: {\n            fontSize: 12,\n            bold: false,\n        },\n        tableHeader: {\n            bold: true,\n            fontSize: 12,\n            color: 'red'\n        }\n    },\n    defaultStyle: {\n        // alignment: 'justify'\n    }\n\n    };\n\n    msg.payload = tableData;\n    return msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1370,"y":2940,"wires":[["10877941b3d7e2ae"]]},{"id":"10877941b3d7e2ae","type":"pdfmake","z":"400bc99efba52b23","name":"","outputType":"Buffer","inputProperty":"payload","options":"{}","outputProperty":"payload","x":1530,"y":2940,"wires":[["27d8dd0654af7c15"]]}]

my flow uses several mysql queries (25 of them!) so i use a join node with a 'key' to merge the data.
so i have modified your datasample object to have a key.
if you can share your flow along with mysql query node,i can try replicate for you.

PRABHAKAR82 · 3 June 2023 10:52

flows.json (4.9 KB)

mudwalker · 3 June 2023 13:19

Some editors can corrupt code, and make it unreadable. Besides, it is far easier for all involved in trying to help you if code is posted using the correct method...

In order to make code readable and usable it is necessary to surround your code with three backticks (also known as a left quote or backquote `````)

   code goes here

You can edit and correct your post by clicking the pencil icon.

See this post for more details - How to share code or flow json

PRABHAKAR82 · 3 June 2023 13:30

[
    {
        "id": "fa2591a9667030c8",
        "type": "tab",
        "label": "Flow 1",
        "disabled": false,
        "info": "",
        "env": []
    },
    {
        "id": "27f1acd293046d97",
        "type": "ui_form",
        "z": "fa2591a9667030c8",
        "name": "",
        "label": "",
        "group": "126d3db65e2e2039",
        "order": 1,
        "width": 6,
        "height": 1,
        "options": [
            {
                "label": "From",
                "value": "From",
                "type": "date",
                "required": true,
                "rows": null
            },
            {
                "label": "To",
                "value": "To",
                "type": "date",
                "required": true,
                "rows": null
            }
        ],
        "formValue": {
            "From": "",
            "To": ""
        },
        "payload": "",
        "submit": "Generate Report",
        "cancel": "cancel",
        "topic": "topic",
        "topicType": "msg",
        "splitLayout": "",
        "className": "",
        "x": 90,
        "y": 200,
        "wires": [
            [
                "c01d7363ddc681bc"
            ]
        ]
    },
    {
        "id": "c01d7363ddc681bc",
        "type": "function",
        "z": "fa2591a9667030c8",
        "name": "Select",
        "func": "var fromdate = msg.payload.From;\nvar todate = msg.payload.To;\nmsg.topic = \"SELECT * FROM `node-red`.`final` where Date_Time between '\" + fromdate + \"' And '\" + todate + \"';\";\nreturn msg;\n",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 270,
        "y": 200,
        "wires": [
            [
                "afb712c20548bace"
            ]
        ]
    },
    {
        "id": "afb712c20548bace",
        "type": "mysql",
        "z": "fa2591a9667030c8",
        "mydb": "4290109d50355584",
        "name": "",
        "x": 440,
        "y": 200,
        "wires": [
            [
                "f1f733040cac9f7f"
            ]
        ]
    },
    {
        "id": "f1f733040cac9f7f",
        "type": "function",
        "z": "fa2591a9667030c8",
        "name": "function 35",
        "func": "let payload = {\ncontent: [\n\n    {\n        pageSize: 'A4',\n        pageOrientation: 'portrait',\n        text: 'Confined Area Monitoring Report:', fontSize: 14, bold: true, margin: [0, 20, 0, 8]\n    },\n    {\n        style: 'tableExample',\n\n        table: {\n            body: [\n                Object.keys(msg.payload[0]).map(key => { return { text: key, style: 'tableHeader' } })\n            ]\n        },\n\n        layout: 'lightHorizontalLines'\n    },\n\n],\n    styles: {\n    header: {\n        fontSize: 18,\n            bold: true,\n                margin: [0, 10, 0, 10]\n    },\n    subheader: {\n        fontSize: 16,\n            bold: true,\n                margin: [0, 10, 0, 5]\n    },\n    tableExample: {\n        margin: [0, 5, 0, 15]\n    },\n    tableHeader: {\n        bold: true,\n            fontSize: 13,\n                color: 'black'\n    }\n},\ndefaultStyle: {\n    // alignment: 'justify'\n\n}\n};\nObject.values(msg.payload).forEach(obj => {\n    payload.content[1].table.body.push(Object.values(obj));\n})\n\nmsg.payload = payload;\n\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 630,
        "y": 200,
        "wires": [
            [
                "bc4fc784fdb62510"
            ]
        ]
    },
    {
        "id": "bc4fc784fdb62510",
        "type": "pdfmake",
        "z": "fa2591a9667030c8",
        "name": "",
        "outputType": "Buffer",
        "inputProperty": "payload",
        "options": "{}",
        "outputProperty": "payload",
        "x": 820,
        "y": 200,
        "wires": [
            [
                "f1b3678b4923f323"
            ]
        ]
    },
    {
        "id": "f1b3678b4923f323",
        "type": "file",
        "z": "fa2591a9667030c8",
        "name": "",
        "filename": "C:\\temp\\test.pdf",
        "filenameType": "str",
        "appendNewline": false,
        "createDir": true,
        "overwriteFile": "true",
        "encoding": "none",
        "x": 1100,
        "y": 220,
        "wires": [
            []
        ]
    },
    {
        "id": "126d3db65e2e2039",
        "type": "ui_group",
        "name": "Generate Report",
        "tab": "78f8e318a5983d02",
        "order": 2,
        "disp": true,
        "width": "6",
        "collapse": false,
        "className": ""
    },
    {
        "id": "4290109d50355584",
        "type": "MySQLdatabase",
        "name": "",
        "host": "127.0.0.1",
        "port": "3306",
        "db": "node-red",
        "tz": "",
        "charset": "UTF8"
    },
    {
        "id": "78f8e318a5983d02",
        "type": "ui_tab",
        "name": "Report",
        "icon": "dashboard",
        "disabled": false,
        "hidden": false
    }
]

smanjunath211 · 3 June 2023 15:11

yes, somehow the date component is not appearing in pdf if you use as it is.
i modified the query to remove * and actually put all the fields in the syntax with date field as below. i am not sure of your field names, i am guessing from your previous post, try this and see if it solves the issue.

below adaptation is working for me in my database.

msg.topic = "SELECT date_format(date_time,'%Y-%m-%d %h:%i'),CO,OX,Lux,Temp FROM `node-red`.`final` where Date_Time between '" + fromdate + "' And '" + todate + "';";

PRABHAKAR82 · 3 June 2023 16:07

Many Many Thanks smanjunath211.its workig.

PRABHAKAR82 · 3 June 2023 16:15

can we change header of time stamp.In place of date_format(date_time,'%Y-%m-%d %h:%i') i want to use DateTime only.

smanjunath211 · 3 June 2023 23:59

use alias column name in the mysql query

msg.topic = "SELECT date_format(date_time,'%Y-%m-%d %h:%i') as 'Date_time', CO,OX,Lux,Temp FROM `node-red`.`final` where Date_Time between '" + fromdate + "' And '" + todate + "';";

PRABHAKAR82 · 4 June 2023 02:47

Great,its working.Many many thanks for your support.

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Time Stamp Not Captured in pdf which I generated

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