Form Validation Question, and a GeoKit Question

Yes - this is a re-post, and my last post to this question - but I was just taking one last attempt at getting help.

Any answers on how to do either would be greatly appreciated.

I am new to rails and have been scouring the web for the past two days trying to figure out 2 things.

1) I am currently using a form with 2 models. The first is person, the second is address. I attempted to duplicate the two models on one form as seen in Advanced Rails Recipes and Railscasts, and they work fine - except when there are validation issues on the address piece it just returns saying "Addresses is invalid". I would much rather it say "Street Address is blank" or "City cannot be blank" any ideas on how to do this?

2) In using the GeoKit plugin I am attempting to use the acts_as_mappable piece so when I create an address it adds the lat and lng to the DB. If I choose just 1 field and specify it this works fine and the table populates, but I want to concat all of the form values (Street_Address_1, City, State, Postal_Code, Country) and pass these in as the location. It appears GeoKit expects address to be a single field - which will not work for my application. I am not opposed to using another plugin, it just seems GeoKit is overall the easiest.

Any help would be greatly apperciated, and please go easy on me, I am attempting to learn RoR on and old AWDWR book, and Advanced Rails Recipies.

to your first question:

you can either define a message for the validate_* functions, so for example:

validate_presence_of :city validate_presence_of :street, {:message => "your specific error message"}

OR

if you wanna do your own validation:

def validate    errors.add(:my_variable, "your specific error message") if validate_my_variable    errors.add(:my__other_variable, "your specific error message") if validate_my_other_variable end

i dont have any experience with geokit, so no help from me there...sorry

hope this helps! smn

1) I am currently using a form with 2 models. The first is person, the second is address. I attempted to duplicate the two models on one form as seen in Advanced Rails Recipes and Railscasts, and they work fine - except when there are validation issues on the address piece it just returns saying "Addresses is invalid". I would much rather it say "Street Address is blank" or "City cannot be blank" any ideas on how to do this?

It sounds like you have   validates_associated :address

On your Person class. That validation works by calling valid? on the associated object and it's default message is "is invalid". It just doesn't know any better.

I'd also guess that you have <%= error_messages_for :person %>

in your view. The result is that you render the errors for the person... and it only knows that address is invalid. If you want more you'll have to give Rails permission to show more. The simplest way would be to add address to the list of objects for which you render errors:

<%= error_messages_for :person, :address %>

2) In using the GeoKit plugin I am attempting to use the acts_as_mappable piece so when I create an address it adds the lat and lng to the DB. If I choose just 1 field and specify it this works fine and the table populates, but I want to concat all of the form values (Street_Address_1, City, State, Postal_Code, Country) and pass these in as the location. It appears GeoKit expects address to be a single field - which will not work for my application. I am not opposed to using another plugin, it just seems GeoKit is overall the easiest.

You don't need to have one big address field, only provide something like it for geocoding. I have similar needs in one app and solved it like this:

class Address < ARec::Base   validates_presence_of :street, :city, :state, :zip_code   validates_numericality_of :lat, :lng

  acts_as_mappable   before_validation_on_create :generate_geocode

  private   def generate_geocode     address = [self.street, self.city, self.state, self.zip_code].join(', ')     geoloc = GeoKit::Geocoders::MultiGeocoders.geocode(address)     errors.add_to_base('Could not geocode address') unless geo.success     self.lat, left.lng = geoloc.lat, geoloc.lng   end end

HTH, AndyV

You are amazing! Thanks!

I was trying to find a way of joining all of that information together for the geokit, trying to use a concat function and it didn't work out to well.

I will have to try the validation piece later on I hope that works!

Thanks for that, nice little method, this is what I put in:

acts_as_mappable

  validates_numericality_of :lat, :lng

  before_validation_on_create :generate_geocode

  private   def generate_geocode     address = [self.street, self.city, self.location_state, self.postcode, self.country].join(', ')     geoloc = GeoKit::Geocoders::MultiGeocoder.geocode(address)     errors.add_to_base('Could not geocode address') unless geoloc.success     self.lat, self.lng = geoloc.lat, geoloc.lng   end