v2.0.3 - Show latest stable - 1 note - Class: ActiveRecord::Base
update(id, attributes) public

Updates an object (or multiple objects) and saves it to the database, if validations pass. The resulting object is returned whether the object was saved successfully to the database or not.


id This should be the id or an array of ids to be updated attributes This should be a Hash of attributes to be set on the object, or an array of Hashes.


  # Updating one record:
  Person.update(15, {:user_name => 'Samuel', :group => 'expert'})

  # Updating multiple records:
  people = { 1 => { "first_name" => "David" }, 2 => { "first_name" => "Jeremy"} }
  Person.update(people.keys, people.values)
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August 17, 2008
1 thank

collection update

in the FirmsController


in the View

<% form_for(@firm) do |f| %>

<%= f.error_messages %>
<%= f.text_field :name %>
<%@firm.people.each do |person|%>
<%fields_for "people[]", person do |pf|%>
      <%= pf.text_field :name %>
<%= f.submit "Save" %>