Hello!
I am using this example for file
uploader.<https://github.com/tors/jquery-fileupload-rails-paperclip-example>
Before uploading a file I would like to open it, search for a specific
word, assign this word to an attribute in the database and only then save
the file in the database.
Example:
I select two files and click "upload"
The file name is assigned to a upload_file_name.
File''s size is assigned to an upload_file_size.
File is opened, I search for a word "Bug" or "Lion".
If i find "Lion", "Lion" should be assigned to an
upload_content_type. If I
find "Bug", "Bug" should be assigned to upload_content_type.
I am not quite sure where I have to define the function that will open a
file: in
uploads_controller.rb<https://github.com/tors/jquery-fileupload-rails-paperclip-example/blob/master/app/controllers/uploads_controller.rb>or
in
uploads.rb<https://github.com/tors/jquery-fileupload-rails-paperclip-example/blob/master/app/models/upload.rb>?
And I do not know how to assign a "Bug" to an upload_content_type.
That is my upload.rb:
class Upload < ActiveRecord::Base
attr_accessible :upload, :upload_file_name, :upload_file_size
Paperclip::interpolates :piks do |attachment, style|
attachment.instance.upload_file_name
end
has_attached_file :upload,
:url
=>"/system/Files/Files/:piks/:basename.:extension",
:path
=>":rails_root/public/system/Files/Files/:piks/:basename.:extension"
include Rails.application.routes.url_helpers
validates :upload_file_name, :presence => true,
:format =>{:with =>
%r{\.(txt)$}i,:message =>"should have an extension .cell"}
validates_uniqueness_of :upload_file_name, :message =>"exists
already."
def to_jq_upload
{
"name" =>
(read_attribute(:upload_file_name)).split(".").first,
"size" => read_attribute(:upload_file_size),
"url" => upload.url(:original),
"delete_url" => upload_path(self),
"delete_type" => "DELETE"
}
my uploads_controller.rb:
def create
p_attr=params[:upload]
p_attr[:upload] = params[:upload][:upload].first if
params[:upload][:upload].class == Array
@upload = Upload.new(p_attr)
respond_to do |format|
if @upload.save
format.html {
render :json => [@upload.to_jq_upload].to_json,
:content_type => ''BUUUUU'',
:layout => false
}
format.json { render json: [@upload.to_jq_upload].to_json,
status: :created, location: @upload }
else
format.html { render action: "new" }
format.json{ render json:
{name:(@upload.upload_file_name).split(".").first ,error:
@upload.errors.messages[:upload_file_name]}, :status =>422}
end
end
end
Database:
ActiveRecord::Schema.define(:version => 20120731045929) do
create_table "uploads", :force => true do |t|
t.string "upload_file_name"
t.string "upload_content_type"
t.string "user"
t.integer "upload_file_size"
t.datetime "upload_updated_at"
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
end
end
And function to open a file:
def check
File.open(??filename) do |file|
file.each do |line|
type=/Lion/.match(line)
if type != nil
puts(type[0]) #assign to a database!!
break
end
end
end
end
Thanks in advance
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On 18 November 2012 18:20, Akvarel <kate.kokatjuhha-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> Hello! > > I am using this example for file uploader. > Before uploading a file I would like to open it, search for a specific word, > assign this word to an attribute in the database and only then save the file > in the database. > > Example: > I select two files and click "upload" > The file name is assigned to a upload_file_name. > File''s size is assigned to an upload_file_size. > File is opened, I search for a word "Bug" or "Lion". > If i find "Lion", "Lion" should be assigned to an upload_content_type. If I > find "Bug", "Bug" should be assigned to upload_content_type. > > I am not quite sure where I have to define the function that will open a > file: in uploads_controller.rb or in uploads.rb? And I do not know how to > assign a "Bug" to an upload_content_type.All rb files are executed in the server. If you want to check the file *before* uploading it you will have to do it in the client pc, presumably in javascript. I don''t know whether this is even possible, I doubt it. Do you think it would be a good thing if a web page could look inside files on your pc? I think you will have to upload it and then do the work. Are you a beginner at rails? If so then I suggest you work through a good tutorial such as railstutorial.org (which is free to use online). Colin -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit https://groups.google.com/groups/opt_out.
> > All rb files are executed in the server. If you want to check the > file *before* uploading it you will have to do it in the client pc, > presumably in javascript. I don''t know whether this is even possible, > I doubt it. Do you think it would be a good thing if a web page could > look inside files on your pc? I think you will have to upload it and > then do the work. > > Are you a beginner at rails? If so then I suggest you work through a > good tutorial such as railstutorial.org (which is free to use online). > > Colin >All rb files are executed in the server. Yeas, but when you try to upload a file that already exists in the database, it does not let you do so. So, it is possible to validate a file, namely a file name or extension or size before uploading the file. Is it possible to do the same thing with the "word finding"? Or it is two different things? And I have looked through that tutorial already. Thank you=) Katja -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/r8Rft2xNThgJ. For more options, visit https://groups.google.com/groups/opt_out.
And there is a preview of the files, cannot I make use of it somehow? -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/iJfDKkrxnusJ. For more options, visit https://groups.google.com/groups/opt_out.
On Nov 18, 2012, at 2:15 PM, Akvarel wrote:> All rb files are executed in the server. Yeas, but when you try to upload a file that already exists in the database, it does not let you do so. So, it is possible to validate a file, namely a file name or extension or size before uploading the file.What makes you think the check is performed before the upload? -- Scott Ribe scott_ribe-ZCQMRMivIIdUL8GK/JU1Wg@public.gmane.org http://www.elevated-dev.com/ (303) 722-0567 voice -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit https://groups.google.com/groups/opt_out.
The check is performed during the upload. If the filename exists already in the database it will not be uploaded twice. Cannot I use this "during uploading" time to check the content of the file? Am Montag, 19. November 2012 01:04:56 UTC+1 schrieb Scott Ribe:> > On Nov 18, 2012, at 2:15 PM, Akvarel wrote: > > > All rb files are executed in the server. Yeas, but when you try to > upload a file that already exists in the database, it does not let you do > so. So, it is possible to validate a file, namely a file name or extension > or size before uploading the file. > > What makes you think the check is performed before the upload? > > -- > Scott Ribe > scott...-ZCQMRMivIIdUL8GK/JU1Wg@public.gmane.org <javascript:> > http://www.elevated-dev.com/ > (303) 722-0567 voice > > > > >-- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/B7--NWT6AzAJ. For more options, visit https://groups.google.com/groups/opt_out.
On 19 November 2012 09:14, Akvarel <kate.kokatjuhha-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> The check is performed during the upload. If the filename exists already in > the database it will not be uploaded twice. Cannot I use this "during > uploading" time to check the content of the file?The upload operation is the act of transmitting the file from the client PC to the server. Actions may be performed before the file is uploaded (at the client) or after the file is uploaded (at the server, operations such as updating the database). Nothing other than the transfer of the file is going to happen "during uploading". It may be that you want to do the things you want after the file is transferred but before the database is updated. Colin> > Am Montag, 19. November 2012 01:04:56 UTC+1 schrieb Scott Ribe: >> >> On Nov 18, 2012, at 2:15 PM, Akvarel wrote: >> >> > All rb files are executed in the server. Yeas, but when you try to >> > upload a file that already exists in the database, it does not let you do >> > so. So, it is possible to validate a file, namely a file name or extension >> > or size before uploading the file. >> >> What makes you think the check is performed before the upload? >> >> -- >> Scott Ribe >> scott...-ZCQMRMivIIdUL8GK/JU1Wg@public.gmane.org >> http://www.elevated-dev.com/ >> (303) 722-0567 voice >> >> >> >> > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org > To unsubscribe from this group, send email to > rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org > To view this discussion on the web visit > https://groups.google.com/d/msg/rubyonrails-talk/-/B7--NWT6AzAJ. > > For more options, visit https://groups.google.com/groups/opt_out. > >-- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit https://groups.google.com/groups/opt_out.
On Nov 18, 2012, at 11:07 PM, Jekaterina Kokatjuhha wrote:> It performed during upload because if there is the same filename is the database , the file will not be uploaded,That does not mean the file was not sent to the server. I phrased my question poorly, so here it is again, hopefully more clear: what makes you think the check is performed before the form (containing the file contents along with the other form data) is posted to the server? -- Scott Ribe scott_ribe-ZCQMRMivIIdUL8GK/JU1Wg@public.gmane.org http://www.elevated-dev.com/ (303) 722-0567 voice -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit https://groups.google.com/groups/opt_out.