the value in text_field helper

the text_field helper expects the first parameter to be an instance variable. The second parameter is the method that will be called on the instance variable to populate the value of the text field. So if you have the following:


def new @user =[:user]) end


<%= text_field :user, :first_name %>

the field will contain the value of the user's first name (providing that you have a "first_name" attribute in your users table in your database). If the user doesn't have a first name (ie the record is new), then the value will be blank.

If you want more control about how the text field's value is populated, you can use the following:

text_field_tag 'name of text field', @value

you should read through Agile Web Development for Rails if you haven't done so already.. This type of stuff is outlined in the book.


simply don't use a redirect, but

render :action => :traveler_form

Hi, I have a similar problem: I need to:

1. put a 'reset' button so that I can clear (set to blank) the text_field when the user clicks on the button


2. retain value in text_field: I have a 'search' button that performs search (not Ajax livesearch... it's a simple search and I wrote the code in my controller). Now, when the user puts some text (query) in the text_field and clicks on 'search', the results are shown ok, but I need to retain the text in the text-field that the user put in. Also I need to set the focus to this text_field after the results are shown.

The relevant code in the view is:   <%= start_form_tag :action => 'search'%>     <%= text_field :server, :server_name, :size => 15 %>     <%= submit_tag 'Search' %>   <%= end_form_tag %>   <%= set_focus_to_id 'server_server_name' %>

The controller code for 'search' is: def search   condition = ""   var = ""   if !params[:server][:server_name].blank?     column_query = params[:server][:server_name]     var = params[:server][:server_name]     condition_part = "lower(s.server_name) like \'%" + column_query.downcase + "%\'"     condition = condition + condition_part     and_flag = 1   end   ...   if !condition.blank?     sql = "       select s.server_name, s.server_type_code from server s       where " +       "#{condition}"   ...   @server_pages, @servers = paginate_by_sql Server, sql, 30    render :partial => "search", :layout => "application"

Your help would be greatly appreciated. Thanks.