respond_to do |format|
if @ model1.valid? && @ model2.valid?
#TODO: transaction here would help out
@ model1.save(false)
flash[:notice] = 'Model1 and Model2 were successfully created.'
format.html { render :partial => "my_partial" }
else
flash[:notice] = 'There were errors validating model1, model2'
#merge_errors (below), merges the errors of 2 models into one errors list
format.html { @errors = merge_errors(@model1, @model2); render :partial => "/error_messages", :errors => @errors, :status => 500 }
end
end
#merges errors from 2 instances into 1 error object
def merge_errors(model1, model2)
if model1.errors.size > 0 && model2.errors.size > 0
model1.errors.instance_eval { @errors.merge model2.errors.instance_values['errors'] }
elsif model1.errors.size > 0
model1.errors
elsif model2.errors.size > 0
model2.errors
else
model1.errors
end
end
Cheers,
Jodi
General Partner
The nNovation Group inc.
www.nnovation.ca/blog
If there is a model association between the two models you can use the
following (copy/pasted from api.rubyonrails.org):
validates_associated(*attr_names)
Validates whether the associated object or objects are all valid
themselves. Works with any kind of association.
class Book < ActiveRecord::Base
has_many :pages
belongs_to :library
validates_associated :pages, :library
end
Warning: If, after the above definition, you then wrote:
class Page < ActiveRecord::Base
belongs_to :book
validates_associated :book
end
...this would specify a circular dependency and cause infinite
recursion.
NOTE: This validation will not fail if the association hasn't been
assigned. If you want to ensure that the association is both present
and guaranteed to be valid, you also need to use
validates_presence_of.
Configuration options:
* on Specifies when this validation is active (default is :save,
other options :create, :update)
* if - Specifies a method, proc or string to call to determine if
the validation should
occur (e.g. :if => :allow_validation, or :if => Proc.new { |user|
user.signup_step > 2 }). The method, proc or string should return or
evaluate to a true or false value.
