similar to: nulls changing to blanks

I need to call callback only if the validation was successful, but it seems it is called also when validation fails. -- Posted via http://www.ruby-forum.com/.

Le''s say that I have a table called people and the column middle_name is nullable. If the user enters say blank or empty space then in the database it is recorded as empty space. I would like in all my models all empty spaces to be recorded as null. I guess I can write a plugin which will do so for all the models but I''m sure something like that should already be existing.I

Hi all, For various reasons I need to have foreign keys with not null constraints. Eg: create_table :people do |t| t.column :name, :string t.column :household_id, :integer, :null => false end create_table :households do |t| t.column :name, :string end add_foreign_key_constraint :people, :household_id, :households, :id So the people table has a foreign key into

Hi, I have a scenario where a doctor can have one or more specialties. For each doctor, one and only one of her specialties can be designated as primary. So I have tables called doctors, specialties, and doctors_specialties, the last of which has a boolean is_primary column. The doctor model class specifies that: has_and_belongs_to_many :specialties I want to enforce, at the lowest possible

hi all, i''m learning rspec and i can''t figure out how to test if a callback is executed in a model. my model code is: class User < ActiveRecord::Base before_save :encrypt_password ... def encrypt(password) self.class.encrypt(password, salt) end thanks a lot, cs. -- Posted via http://www.ruby-forum.com/.

I''ve been using rails for about 3 months and have a pretty cool app going, but i need to auto-fill some form data. is this possible? i would think so. well anybody to lend me a helping hand, much appreciated. -- Posted via http://www.ruby-forum.com/.

Hi, I wrote a little helper that calulates someone''s age based on his/her date of birth. def age(dob) diff = Date.today - dob age = (diff / 365.25).floor age.to_s end It works fine, but it''s not completely accurate as it just takes the average days in a year. It should be able to calculate this more accurately, right? I can''t work it out

Hi all, I have a multi model form (Project with many tasks) and I want to prevent a task from being saved to the DB if it is empty ie. if there is no i/p for that task from the user. I tried the following class Task < ActiveRecord::Base before_save :check_if_empty ... def check_if_empty self.destroy if description.blank? end but i get this TypeError in ProjectsController#create

This plugin gives ActiveRecord the ability to do stricter date checking. Example: class Person < ActiveRecord::Base validates_date :date_of_birth end This will ensure that date_of_birth is a *valid* date. The date can be set initially as a string in any of the following formats: "2006-01-01" "1 Jan 06", or "1 Jan 2006" "1/1/06" # Day /

I have a problem with ruby on rails validation total_book_toy.rhtml ================ <%= text_field ''book1'', ''title1'' %> <%= text_field ''book2'', ''title2'' %> I want to validate these text_field so user can''t insert same title. However, I was stuck how to do it. Or maybe you have another way how to do it.

I am brand new to rails and I am attempting to make my first web app. I have quickly run into my first problem however that I can''t seem to get by. It seems like it would be easy to get around (with my knowledge of other languages besides ruby), but I can''t seem to get by it. Right now, I have a note model that contains attributes, :title (string) :content (text) and :tags

I tend to allow nulls in cases where the value is unknown, even if it''s a text/varchar field. RoR seems to push empty strings into these fields. Is there any way to get RoR to use NULL vice '''' if the input box is empty? Thanks! - Ian

I have this in a model: has_one :next, :class_name=>''WorkPart'', :foreign_key=>''next_id'' And it causes this error: compile error /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.13.1/lib/active_record/deprecated_associations.rb:83: void value expression

This is probably a dumb question, but is there an easy way to set the focus of a form to the first visible/editable element? I''ve been googling lots and searching documentation and haven''t come up with anything. Help would be appreciated. -- Posted via http://www.ruby-forum.com/.

I''ve tried Time.parse() and DateTime.parse() but they interpret the date as US format. Is there any way to tell it to interpret as dd/mm/yyyy? -- Posted via http://www.ruby-forum.com/.

I have a model where I need to calculate one of the fields when I create a new instance. It seems to me that I should do this in the model code and that I should override the new and/or create methods. Is this the right approach and, if so, how can I execute the existing method but add on my calculation? I want something like: def create -Do the original create first- field =

Hi! I''m a very-very new Ruby-on-Rails user even if I have some experience with other Languages (mostly PHP, so this is my first real object-oriented language) My problem, newbie-ish as it is, is the following: I have a model, Article, that returns Articles from the DB. Now, when a certain field of the model (the intro text) contains no data, I want to fill it with a truncated

Does anyone how to create a validation that: validates_presence_of :a OR :b I.e. :a OR :b must be present. I thought this would probably be possible with some kind of validation callback, e.g.: def check_a_or_b_is_set return (a or b) end Any ideas? Thanks, Rob -------------- next part -------------- An HTML attachment was scrubbed... URL:

If the associated object of a has_one association has been loaded, it is resaved when the parent is saved. Eg: class Person < ActiveRecord::Base has_one :user end class User < ActiveRecord::Base belongs_to :person end p = Person.find(:first) p.save # As expected, nothing happens with the user association p.user # Loads the associated object p.save # As well as saving the person, the

Hi all! I have come into a strange issue in Rails that I am hoping someone can shed some light. To make a very long story short, I have been researching how to override ActiveRecord::Base#read_attribute and write_attribute to perform security checks at the model level (influenced by the ModelSecurity generator). Shortly after implementing some code to check this behavior, I began to