similar to: export file to csv Rails 0.14.1

Hello Everyone, I''d like to provide a page where the user can click to export some data as a csv file. It would be great to have the page show a progress value for percent complete on generating the file (file generation takes between 1 and 4 minutes currently). Once complete, I can show a link to download the temporary file. I''ve looked into BackgrounDrb and found some

Hi, looking for something that simple, but can''t find it. I got: outfile = File.open(''teams.txt'', ''wb'') CSV::Writer.generate(outfile) do |csv| for team in @teams csv << [team.id, team.name] end end outfile.close send_file "teams.txt", :filename => "teams.txt",:disposition =>

Hello ALL, Can any body help me in writing a code where i can import a CSV file in to mysql database using rails. I dont want to write any models for importing because there are large number of tables and each table does not have its model. I can get the table name from the parameters So is there any generic way for me ,so that i can import with just the tablename Thanks Jagan

Hello, I have an application that should be able to export a list of users as CSV. So I put Mime::Type.register "text/csv", :csv into my environment.rb, and added this code to my UserController''s index action: format.csv do require ''csv'' CSV::Writer.generate(csv_string = "", '','') do |csv| csv

Hi, I have an action that uploads a csv file of users to the website. (Uploads fine) The code loops through each row checking if the user already exists and then either updating the attributes or adding a new user to the database. The csv file has over 3000 rows and does not complete. (At one point I got an error: A ActiveRecord::Transactions::TransactionError occurred in pupils#upload:

Good morning! I have a case where I need to build a csv file from my model and allow a user to download/save that file. I''ve got this all working with non-Ajax forms, but the generation of the csv file can take quite a bit of time, so I want to provide a busy indicator for my user. So I tried the following in my view: <% form_remote_tag ( :url =>{:action =>

Hi friends, i am using csv export on my application. in my view file code is <%- headers = ["Transaction ID", "Activity ID", "Product Name","Customer Name", "Ticket code"] -%> <%= CSV.generate_line(headers).strip %> <%if !@trans.nil? && @trans.length > 0 %> <% @trans.each do |tran|%> <% if

For some reason, I''ve posted this question to this forum 4 times now and it never appears in the daily consolidated email I get daily? I''ve written a routine allowing the client user to declare where their .csv import file resides and then send it to the server to import the many rows into an existing model table, and then throw it away. I''ve imported many graphic files

hello everyone, Any idea how can i export a resultset from a database to a CSV or XLS file from the application ? would like the user to have the option to export selected data to a CSV/XLS file. Any plugins or libraries avaiable to accomplish this ? Thanks for your time, VASU. -- Posted via http://www.ruby-forum.com/.

Hi, All, Suppose I have a CSV file, there is data in it. * Column 1 Column2 Column 3 Column 4 Row1 a b c Row2 a2 b2 c2* You know, the column 4 is no data Now, I would like to insert data to Column 4, after save, the CSV file will be: * Column 1

If you are running on Windows you can use create and read speadsheets using the ''win32ole'' require This sample should give you the basic idea ------ def export require ''win32ole'' @sort_by = ''last_name'' current_user = ''steve'' @records = Contact.find( :all, :conditions =>

Hi, can''t seem to figure it out. I have text saved as UTF8 in my MySQL database, and it shows up fine in the browser. However, I want to export to pdf (pdf;writer) and csv-text. When I do that the accented foreign characters do not show up. I''ve tried to convert them before exporting, but I don''t seem to be able to get it right. (Iconv etc. do not seem to convert it.)

Hi Everyone, Thanks for all the help with the previous queries. Here is what i want to do. i have 20000 probesets-->calculate all the variance accross all the probesets-->filter out probesets that are low so now i ended up with only 10000. The 10000 is fine but when i export to excel, it is missing the probeID. Here are my code and examples. #########calculate the variance across the

<!doctype html> <html> <head> <meta charset="UTF-8"> </head> <body> <div> <br> </div> <blockquote type="cite"> <div> On 05/07/2020 18:07 Marcel Blenkers <marcel.blenkers@web.de> wrote: </div> <div> <br> </div> <div> <br>

Here is one tutorial for the beginners to understand how to upload a file using Rails. http://www.tutorialspoint.com/ruby-on-rails/rails-file-uploading.htm If you like this tutorial then please send me your feedback. Thanks Mohtashim -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the

I have a data.frame with three columns + the row number Sample MidPoint Count [1,] 1 0.025 1 [2,] 1 0.075 3 [3,] 1 0.125 15 [4,] 1 0.175 12 [5,] 1 0.225 5 [6,] 1 0.275 8 When I export the data to a csv the column names are shifted because the row numbers are being exported as well. Sample MidPoint

Hi, could use some help with this. I have an app that imports CSV data (which it receives from another app as an automated entry to a data field on a form) I want to write test for the models that use this data. I have one model with no database that takes the CSV record and makes it an object that I can work with. Then that object gets split into Customer, Order and LineItem models. This

Hello guys, I''m trying to make a app that the user can send a xls or csv file and I can catch the informations inside this file, but I don''t know how I can do this. Thanks for the help. -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email

I haven't been successful in converting my colleagues to the world of R yet they wish to share collected data so that they may analyze it in SPSS. I know how to write to an SPSS file and it opens fine, but my problem is that it only includes the existing data - none of the variables I created within R. The procedure followed thus far: 1. Collect Data via online system 2.