similar to: Getting error like "wrong number of arguments (1 for 2)"

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, 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 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 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 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/.

Hi, I am using RoR for my web development. But Database is already created (Older database) with its own table name without RoR Specificcations. Table names are:- blacklist_patterns category comment moderation store vote What will be names for models corresponding to my above tables? If I want to specify my own names to models? Can I do it? If yes then How? Please tell me. Thanx in advance.

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, I have one form , in which I am using file_field teg for input image file as follows. ===== <%= file_field("store", "picture") %> ======= Tha Actual fileld name of my Image field in Database is "store_photo" with datatype LargeBLOB. & Inside my Store Model I have specified "def picture" as follows:- ========================= def

Hi, I have an object (@cnt). Now when I am calling "@cnt.inspect" on object it gives me output as follows:- ----output---- [#"3"}>] ----------- Now in aboove output the number between double quotes (3) which is of my interest & I want to display it. How to do that? Actually this is my method:- ==================================== class Tagging < ActiveRecord::Base

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 have downloaded "Ruby on Rails validator plugin for password fields". & they have specified that for using it we have to unzip it in plugins directory of your rails application. But I cant find the plugin directory in my Rails Application. Also there is plugin directory in Rails server installation directory:-"C:\local\ruby\freeride\plugins\". & so I have

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 am new to ROR. PLease tell me what is syntax of creating hidden field in form inside RHTML file. I knonw the syntax for text box (<%= text_field ''product_item'',''product_id'', :value=>product.id%>) But I don''t know syntax for hidden field(like <input type=hidden> in HTML). Please tell me. Thanx in advance. Prash -- Posted via

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

Hi, How to install specific plugins in RoR environment? I tried with following . ========================== /script/plugin install http://topfunky.net/svn/plugins/css_graphs ================================= But with this I got error as :-"The system can not find path specifed" How to install plugins? Thanx, Prash -- Posted via http://www.ruby-forum.com/.

HI, I am new to ruby. I am developing small application in ROR. Following is code for my rHtml , Controller & Model. PLease see it & let me know why data in form is not get validated & also how to check for whether data i have entered in form (username) is present in database or not? (Like Login form). following is my code:- ---index.rhtml-------- <%= start_form_tag(:action

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/.

Hi, I am trying to use method `validates_presence_of'' for validating my input fields on form . I m using it in my action class as follows:- ======================= validates_presence_of(params[:product][:quantity]) ====================== But when I am running my application i m getting error like:- ========================= undefined method `validates_presence_of'' for

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/.