method

attributes=

v2.1.0 - Show latest stable - Class: ActiveRecord::Base

attributes=(new_attributes, guard_protected_attributes = true)

public

Allows you to set all the attributes at once by passing in a hash with keys matching the attribute names (which again matches the column names). Sensitive attributes can be protected from this form of mass-assignment by using the attr_protected macro. Or you can alternatively specify which attributes can be accessed with the attr_accessible macro. Then all the attributes not included in that won’t be allowed to be mass-assigned.

# File activerecord/lib/active_record/base.rb, line 2353
      def attributes=(new_attributes, guard_protected_attributes = true)
        return if new_attributes.nil?
        attributes = new_attributes.dup
        attributes.stringify_keys!

        multi_parameter_attributes = []
        attributes = remove_attributes_protected_from_mass_assignment(attributes) if guard_protected_attributes

        attributes.each do |k, v|
          k.include?("(") ? multi_parameter_attributes << [ k, v ] : send(k + "=", v)
        end

        assign_multiparameter_attributes(multi_parameter_attributes)
      end

2Notes

Update attributes on mulitple models

patrickberkeley · Oct 1, 2009

Updates attributes on multiple models, saves each if validations pass.

def update_multiple
@items = Item.find(params[:item_ids])
@items.each do |item|
  item.attributes = params[:item].reject { |k,v| v.blank? }
end
if @items.all?(&:valid?)
  @items.each(&:save!)
  flash[:notice] = "Updated items!"
  redirect_to items_path
else
  flash[:notice] = "Please enter valid data."
  render :action => 'edit_multiple'
end
end

the source is wrong!

abstraktor · Apr 6, 2011

in 3.0.5, the source code in line 15 looks like this: respond_to?(:"#{k}=") ? send(:"#{k}=", v) : raise(UnknownAttributeError, "unknown attribute: #{k}")

whats wrong with apidock?

attributes=

2Notes

Update attributes on mulitple models

Updates attributes on multiple models, saves each if validations pass.

the source is wrong!

Related methods