javascript - Uploading And Reading CSV-Parse File -


i trying read csv file multiple same colums using node csv-parser 

 'from' ' 'to' 'from' ' 'to' 'from' ' 'to'  'germ' ' 'nl' 'turk' ' 'us' 'nile' ' 'br'  'germ' ' 'nl' 'turk' ' 'us' 'nile' ' 'br'  'germ' ' 'nl' 'turk' ' 'us' 'nile' ' 'br'  'germ' ' 'nl' 'turk' ' 'us' 'nile' ' 'br'

and below code:

req.file('ratefile').upload(function (err, uploadedfile) {         if (err) return responseservice.json(500, err, 'uploaded failed');          console.log(uploadedfile.length) //          if (uploadedfile.length) {             rs = fs.createreadstream(uploadedfile[0].fd);             parser = parse({columns: true, trim: true}, function (err, data){                 var record = {};                 console.log(data);                 _.foreach(data, function(datum, index){                     var routename = datum['from'] +"-"+ datum['to'];                     console.log(routename);                     record.name = datum['from'] +"-"+ datum['to'];                     record.to = datum['to'];                     record.from = datum['from'];                 });                  return responseservice.json(200, res, 'file uploaded');             });             rs.pipe(parser);         } else {             return responseservice.json(500, res, 'please upload file')         }     });

and when run that, last column on csv file.

  'from' ' 'to'   'nile' ' 'br'   'nile' ' 'br'   'nile' ' 'br'

any appreciated. thanks

it parse like

{   "from": "germ",   "to"  : "nl",   "from": "turk",   "to"  : "us",   ... }

and of course it's not valid json, @ duplicate keys. last key value pair overriding previous pair.

in line

parser = parse({columns: true, trim: true}, function (err, data){

use function, or null columns value, like

parse({columns: null, trim: true}

and print out parsed result, , modify own needs. can use function, don't pretty sure function can solve problems, since still parsing single csv line single object.


Comments

Post a Comment

Popular posts from this blog

searchKeyword not working in AngularJS filter -

i writing app using angularjs on front end. want search through table word/field; 1 search box everything. according article here: http://hello-angularjs.appspot.com/searchtable can use filter: searchkeyword this. this code, , not working expected. <label>search: <input ng-model="searchkeyword"></label> <table ng-repeat="post in posts | orderby: sort | filter: searchkeyword"> <tr> <td> {{index(post)}} </td> <td> {{post.title}} </td> <td> {{post.author}} </td> <td> {{post.content}} </td> <td> {{post.date | date: "d/m/yyyy"}} </td> </tr> </table> what should do? thank you try this: controller $scope.posts = [ {title:'title one', author:'author one', content: 'content one'}, {title:'title two', author:'author two', content: 'cont...
Read more

sequelize.js - Sequelize: sort by enum cases -

i have model ( article ) field (the name type ) of type enum('source', 'translated') , return 1 article ordered type field. source articles should returned before translated articles. like: article.findone(order: [ { type: [ 'source', 'translated' ] } ]); unfortunately there appears no built-in solution sorting enums. instead have sort by case , couldn't find documentation on how sequelize. what conventional approach here? sorting case hard in sequelize, sort field (the second answer in linked post) should possible: order: sequelize.fn('field', sequelize.col('type'), 'source', 'translated') it's supported mysql far know though
Read more

user interface - how to replace an ongoing process of image capture from another process call over the same ImageLabel in python's GUI TKinter -

i trying use following code create interactive gui changes color-space(hsv, rbg, grayscale etc) on event of button click. display opencv video in tkinter using multiprocessing being new python having problems multiprocessing , attempts on making gui change it's color space on button clicks hangs entire system. on it's implementation highly appreciated. thankyou. below code: import cv2 pil import image,imagetk import tkinter tk import numpy np multiprocessing import process , queue def quit_it(root,process): root.destroy() process.terminate() def black_andwhite(root,process): process.terminate p=process(target=capture_image, args=(5,queue, )) p.start() root.after(0, func=lambda: update_all(root, image_label, queue)) def update_image(image_label, queue): frame = queue.get() = image.fromarray(frame) b = imagetk.photoimage(image=a) image_label.configure(image=b) image_label._image_cache = b root.update() def update_all(root...
Read more