similar to: How to Upload Image through RoR??

Hi, I have a multipart form upload field uploaded through <%= file_field("profile", "profile") %> Once a submit happens, the action basically does something like: profile = Profile.new(params["picture"]) This invokes the models = to method: def picture=(picture_field) ...do a bunch of assignments here end def validate ... do a bunch of validations

Hi all, Learning RoR (and loving it!) to develop a website. A requirement of the website is enabling users to upload photos to be made viewable (dynamically) on the website. Is this something I can develop with RoR? Thanks, Jeff -- 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

Hi, I want to insert onto database the Current DateTime Value into database field "Store_date" with datatype (DATETIME). How to do tihs? I am usiing hidden variable into my form as follows:- ======================= <%= hidden_field("store", "store_date", :value =>:datetime ) %> ======================= But when I m submmittng form I couldn''t find

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

Restricting size of an uploaded file, is how is that possible? If I do not want a user to upload a file larger than X bytes, can it easily be done? If I also would like restrict the types of files that can be uploaded, how may I do so? Thank you, Sharkie

Hi, In my application I want to find out the occurance of substring "http:\\" in the main string "http:\\www.abc.com" Here how to find out whether substring "http:\\" is present in my String? & if substring "http:\\" is present then I want to delete it from main string. How to do this? PLs help me. Thanx in advance. Prash -- Posted via

Hi, I am entering value in textbox ("name") on form. Now name field in database is having ''unique'' constraint on it so that no 2 records with same name allowed in database. Now when I m trying to enter same name into database from my form I m getting following error. ================================ Mysql::Error: #23000Duplicate entry ''Prashant''

Hi, I am new to ROR. I have created a form with foru fields in ROR. Now its working fine for all CRUD operations. But I want to validate data on form for "validates_presence_of" validation. How to do this? I tried it by putting line "validates_presence_of :description" . But its not working. Its throws error like "undefined method `each'' for

Hi, I have some values on my webpage displaying like 1.22333333333 2.33333344444 2.33377777777 etc. Here I want to display values upto 2 decimal places correct. i.e, 1.22333333333 should be dislayed as 1.22 2.33333344444 should be dislayed as 2.33 2.33777777777 should be dislayed as 2.34 & so on.... How to do this in ruby????? Is there any function??? Thanx in advance. Prash --

Hi, I want to disable textbox in my page so that user can not modify its contents. How can we do that in ruby? Thanx, Prash -- Posted via http://www.ruby-forum.com/.

Hi, I want to calculate difference between Current date & previous date (stored in database). The difference should be in days. Hhow to do that?? PLs tell me. Thanx in advance. Prash -- Posted via http://www.ruby-forum.com/.

Hi, I have a form in rhtml. Now I have 2 buttons indside that form. Clicking on the first button action will be ''create'' & on second button action will be ''delete''. How to do this? Thanx Prash -- Posted via http://www.ruby-forum.com/.

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

Hi, Thest are two methods:- 1) redirect_to :action => ''list'' 2) render :action => ''list'' what is difference between these two methods?????? Thanks. Prash -- Posted via http://www.ruby-forum.com/.

This may have been asked/answered before - if so, i apologise... I have the following table layout in a habtm relationship: ------------ ----------------------- -------------- | products | ----| categories_products |-----| categories | ------------ ----------------------- -------------- What would be the best way to pull out all the products for a given category? At the

HI, How to specify default action for particular actioncontroller? Currently when I m typing the URL as "http:\\localhost:3000\actioncontroller_name" , then I m getting the default actin page as list.rHtml. But instead I want my action page to be index.rHtml. How to do it? Thanx. Prash -- Posted via http://www.ruby-forum.com/.

Hi, In my application I want to tranfer a variable (store_id) from one page to next without putting it into session. How should I do this? Is there any way to transfer variable from one to other page using methods other than sesion? Thanx Prash -- Posted via http://www.ruby-forum.com/.

Hi, This is my definition of method "add_to_cart" ======================= def add_to_cart count=params[:product][:count] while count.to_i>=0.to_i if params[:product][''dem_quantity''+count.to_s]=="" else @product = Product.find(params[:product][''product_id''+count.to_s]) print @product.name

Hi, I am using acts_as_athenticated plugin for my rails application. That plugin is using "SHA1" algorithm to encrypt password & stroe it into database. Now in future suppose user requsted his password through email, hhow should I decrypt that password in my application & for sending it through mail? Please help me. I am trying this since last 2 days. But still not

Okay, I download login generator and I used it on my new app but, it''s not working correctly. If the user logins on the same session as he created he will login if it isn''t the same session it fails. What''s going on? -- Posted via http://www.ruby-forum.com/.