similar to: Uploading files - getting size

Hello together, I developed a file upload in my application like this (files uploaded belong to a project): project_controller.rb: ---------------------- def upload_attachment project = Project.find(@params[:id]) begin project.attachments.create(params[:attachment]) rescue flash[:attachment_error] = "Error at Upload" end redirect_to :action => "edit_project", :id

I have a problem getting attachments to work in a specific case... I have the following data model (this is a relevant subset of it): - a log can have many journals - a journal belongs to a log and can have many attachments - an attachment belongs to a journal When adding on a new journal to an existing log the new journal form and the corresponding controller handle the attachment as well and

not sure whats going on here, but I''m using some pretty standard code to manage file uploads in to a db, but having trouble detecting if the file upload field has been filled or not. in my Asset Model, I have: def asset=(asset_field) self.name = base_part_of(asset_field.original_filename) self.content_type = asset_field.content_type.chomp self.data = asset_field.read end def

Hi, I am using send_data to allow users to download files from the database but ran into a small problem, it seems that files upload fine but when they download only 64kb of the file is sent. I''m using the basic rails code from the Agile book: #upload code in my sheet model def file=(document_field) self.filename = base_part_of(document_field.original_filename)

Hi, I currently write a tool for my school. Therefore I have to save uploaded files. I bought Agile Web Dev. with Rails to learn webdev with Rails. I''m very new at rails and couln''d find anything on the internet. Now when I want to save the file data to the mysql database, rails gives me an error. My code is the same as written in the book on page 363. Here is my code of the

Hi! Im developing a simple prototype of an application. It fills an oracle db with data about a file in the filesystem, and save the entire file in a blob along with some metadata. To get the file in the db i use a file_field form helper. All goes well with the radrails-integrated browser, but it doesnt work anymore in firefox. The problem is, firefox seems to cut the pathname from the file. Here

I have a model; I do photo = Photo.new(parameters) parameters contains: {"picture"=>#<File:C:/DOCUME~1/BART~1/LOCALS~1/Temp/CGI3180.1>} so i expect that the def picture=(filename) method is called in this constructor.. this is not the case. Does anyone know why? params[:photo].each_pair do |id, parameters| photo = Photo.new(parameters) end class Photo

I am checking the file size of an uploaded file and storing it in a filesize column. It will work just fine when the user uploads any files other than images (jpg,png,gif). Word, Excel, Powerpoint, .zip and more all work fine. This is my model asset.rb that handles the file upload. def newfile=(newfile_field) self.filename = base_part_of(newfile_field.original_filename) self.filetype

I''m trying to create a document upload system, where most of the code is the super class Document and just the path to file on the system is controlled by the sub classes. When I attempt to use my code, I get the following when I try to save the document. can''t dump anonymous class Class Any ideas? ** Migration ** class CreateDocuments < ActiveRecord::Migration def

i?m fairly new to ruby... any suggestions getting the below to work... i?d like to use myfile_field.read within encodeVideo and then self.data = Student_Interviews.flv class Myfile < ActiveRecord::Base . . . def encodeVideo opts #, stream IO.popen(?ffmpeg #{opts}?, ?w?)#{ |io| io.puts stream} end def myfile=(myfile_field) if myfile_field and myfile_field.length > 0 encodeVideo ?-i

I''m trying to use one form to upload a file to the file system and insert a title and description field into the database. I have no problem uploading files to the file system using the code from http://wiki.rubyonrails.com/rails/pages/HowtoUploadFiles There are more fields on the form than need to be inserted into the database, name and file. I need to pull out these extra fields

I am creating a database for movies (films) and television shows (shows) that will have has_and_belongs_to_many relationships with the pictures table. CREATE TABLE screenshots ( id serial NOT NULL, filename character varying NOT NULL, content_type character varying NOT NULL, primary key (id) ); CREATE TABLE films ( id serial NOT NULL, name character varying NOT NULL,

hello, i have a problem. I want to upload a file with ajax and the following tag: submit_to_remote ''button_save'',''Speichern'',{ :url => {:action => ''ajax_update'', :id => @product}, :update => ''formular'' } it doesn''t work, my form_tag looks like: form_remote_tag(:url => {:action =>

I submitted this earlier, but the web forums went down and I''ve screwed up the thread, so I''m starting over. I''m trying to built a document upload system. The system has a main Document model with different subclasses for different types of documents. With the code below, if I attempt to create a Document, it works fine, but if I attempt to use one of the subclasses, I

Hello dear subscribed Users, this is my first post, so please forgive me for any inconveniences. The following problem: I have a dataframe containing a factor column. For each column i would like to compare means as parted by the factor. Using the normal t.test function I have already achieved my goal. But i think, that for my original data, a permutational t.test would be better suited.

Dear list, I would like to do some calculation using different grouping variables. My 'df' looks like this: # Some data set.seed(345) id <- seq(200,400, by=10) ids <- sample(substr(id,1,1)) group1 <- rep(1:3, each=7) group2 <- rep(1:2, c(10,11)) group3 <- rep(1:4, c(5,5,5,6)) df <- data.frame(id, ids, group1, group2, group3) df <- rbind(df, df, df) df$time <-

Hi List, need your help, property the here following. OS / Samba = samba-3.0.10-1.4E (RHEL4) Error message in Samba logfile = Invalid key XXX given to dptr_close This message comes then if by NT server with BrighStore a Backup is started. The Backup is made by a Share. all the same with or without kernel oplocks = no level2 oplocks = no oplocks = no without success Info: Error Log from

Okay, so this is driving me crazy. I''m trying to do a file upload using code from a book. What happens: I get wrong number of arguments (1 for 0) in the upload controller save action. No idea why. Schema: The schema for the picture model object is just a textfield named comments and a binary field called data. Upload controller: def get @picture =Picture.new end def save

I'm trying to fit a multinominal logistic model using package mlogit. I have 15 independent variables. The code looks like this: m<-mlogit(score~0|f1+f2+f3+f4+f5+f6+f7+f8+f9+f10+f11+f12+f13+f14+f15, data, reflevel="1") And it gives the following error message: Error in parse(text = x) : unexpected ')' in "score ~ 0 + alt:(f1 + f2 + f3 + f4 + f5 + f6 + f7 + f8 + f9

Dear All, I am recently working on neural network using nnet package. The network has 4 hidden layers and 1 output layer, the target output 1 or 0. The model I use is as follows: nn<-nnet(target~f1+f2+f3+f4+f5+f6+f7+f8+f9+f10,data=train,size=4,linout=FALSE,decay=0.025,maxit=800) It works well and give me ROC 0.85. However, when I want to reproduce the result in java, I cannot get the same