search for: composed_of

I''m trying to use composed_of within my model. I have a field in my database named ''card1'', which is simply a string. I have this in my model class Player < ActiveRecord::Base composed_of :card1, :class_name => ''Card'' end class Card attr_reader :value, :suit def initialize(s)...

At the risk of being banned for posting the same question twice, I thought I''d try once more with a question for the title rather than a statement (on the basis that perhaps questions get answered and statements ignored ;-) ) ActiveRecord supports composed_of for value objects which is fantastic but one thing that it doesn''t seem to support (or at least I am unable to find any documentation for) validation of the value objects. For example, given the following: class Message < ActiveRecord::Base composed_of :sender, :class_name =&gt...

Can anybody share some examples of their Money implementation ? I''m trying to setup a Model to use this library, but can''t seem to wrap my head around how it is exactly supposed to work. My Model (Foo) looks like: =============== composed_of :commission, :class_name => "Money", :mapping => [ %w(commission_cents cents), %w(commission_currency currency) ] Yet, in script/console, I''m unable to get the correct behaviour (at least I think), from the library. =============== >> t = Foo.new(:commission => 34...

I am trying to use composed_of in my model, but I not succeeding. With the code I pasted below, I cannot perform this action in the console: property = Property.new(1, "px") I get NameError: uninitialized constant Property when I try to perform that action. It''s not finding my class I made I suppose. The P...

ActiveRecord supports composed_of for value objects which is fantastic but one thing that it doesn''t seem to support (or at least I am unable to find any documentation for) validation of the value objects. For example, given the following: class Message < ActiveRecord::Base composed_of :sender, :class_name =&gt...

I am relatively new to rails and I cannot figure out what is going on here. I am using the composed_of method in an ActiveRecord class to create two aggregate properties: shipping_address and billing_address. The object properties are getting populated from the form and validation is working - no problem. When I call order.save, though, everything is being saved except the address fields. I am not g...

Hi, How do I validate a composed_of attribute in my model? I have a product model with: composed_of :price, :class_name => ''Money'', :mapping => %w(cents cents) This maps the price attribute to the Money (http://dist.leetsoft.com/api/money/) class. I want to make sure that the price only contains a price t...

I''m using composed_of in one of my models, and I''d like to validate that the attribute is present. class Hand < AR::Base composed_of :level, :mapping => [ %w(sb sb), %w(bb bb), %w(ante ante) ] validates_presence_of :level, :message => "must be set" end The Level class itself is very sim...

...ture, units = "F" ) unless valid_units?(units) units = "F" end @temp = temperature = ((10 * temperature).to_f.round)/10.0 @units = units.upcase end def to_c convert_to("C") end ... etc. So in my app model: class Profile < ActiveRecord::Base composed_of :temperature, :class_name => Temperature, :mapping => [ :temp, :temp ] def before_save self.temperature.to_f! end The table corresponding to Profile has a column named temp. What happens to the units? Is it merely ignored? When I navigate to /profiles/new I get...

I am having problems with this: validates_presence_of :amount validates_format_of :amount, :with => Money::PATTERN, :allow_nil => true composed_of :amount, :class_name => Money, :mapping => [[:amount, :to_s]] The problem is when I use this field in a form, and the text is blank, ActiveRecord gives me two errors: "money is invalid" "money can''t be blank" I want only "money can''t be blank&qu...

Hi, I''m getting this error: >> p = Plan.new >> p.amount TypeError: wrong argument type String (expected Fixnum) Apparently this happens because the aggregation isn''t initialized. Here''s the code: class Plan < ActiveRecord::Base composed_of :amount, :class_name => "Money", :converter => Proc.new { |s| Money.new(s) }, :mapping => [:price, :value] end class Money attr_reader :value def initialize(string) @value = BigDecimal(string.sub(/,/, ''.''))...

...ocumentation on this. So far it seems like a simple db field like create table accounts ( id int unsigned not null auto_increment, name varchar(50) not null, time_zone varchar(50) not null, ... primary key (id) ) and a class like class Account < AR ... composed_of :time_zone, :class_name => TimeZone, :mapping => %w(time_zone name) end There also seems to be a TZInfo library that supports daylight savings. It seems strange that the TimeZone class in rails doesn''t support daylight savings as Basecamp from 37Signals uses timezones and I'...

Hi Let''s say we have model Foo. Each Foo instance can have several bars. Those bars are primitive, so they shouldn''t be models. For example, Foo might be a type of convention, and the bars might be years the convention was held in. Naively, we would have a conventions_years date, and put: has_many :years inside class Convention. But then we''d get an error, since for

...opment book, I couldn''t get :grade.grade_abbr and strand.strand_abbr to work. The code below was the best that I could come up with but it shows grade_id and strand_id. Does anyone have a suggestion for how to make this work or for a new strategy? class Standard < ActiveRecord::Base composed_of :full_standard, :mapping => [ %w[grade_id grade_id], %w[strand_id strand_id] %w[number number] ] class FullStandard < ActiveRecord::Base attr_reader :grade_id, :strand_id, :number def i...

...rails a few weeks ago, I did read the Agile Webdevelopment with Rails book, and I generally started to love Rails for it''s sheer beauty and intelligent structure... However I came across something that puzzles me quite a bit. It''s how to add a time_zone_select form field using a composed_of class with mapped utc_offset and name fields... In my form I have: <%= time_zone_select(''user'',''time_zone'') %> In my user-class I have: composed_of :time_zone, :class_name => ''TimeZone'', :mapping => [%w(time_zone_name name) %w(ti...

...ze(first_name, middle_initial, last_name) @first_name = first_name @middle_initial = middle_initial @last_name = last_name end def to_s [ @first_name, @middle_initial, @last_name ].compact.join(" ") end end and then in whichever model I need to use this, I have... composed_of :clwholename, :class_name => Clwholename, :mapping => [[ :first_name, :first_name ], [ :middle_initial, :middle_initial ], [ :last_name, :last_name ] ] which is repeated in a number of models. I ran into a snag when trying to use RAV (which is very...

How can auto completion be done for a composite field ? Concrete problem : Suppose the class Person with reference to a City object. The City has a name and a postal code. When entering a Person I want to enter the city in one text field that shows a composition of the city name and the postal : "city (postal)". And this with auto complete (and should afterwards be linked to the

...gure out how the Money library (http://dist.leetsoft.com/api/money/) is supposed to work. I have a Product model and I want to have an attribute in my model called "price" and I want it to accept Money objects. So I have this in my Product model. class Product < ActiveRecord::Base composed_of :price, :class_name => ''Money'' end >From what I can tell, I should be able to do: p = Product.new p.price = Money.new(1999) and have the price return a Money object? I can''t get this to work. What am I doing wrong? Is this how Money is supposed to work? Tha...

...n, but having a Autos table with an suv_id, mini_id, mid_id, and sports_id (for all possible combos) seems like really bad design. I suppose I could have the Autos table have a sub_type_id and sub_type column, and somehow use this to map. However, I''m unsure how to go about this...composed_of doesn''t seem to be designed with this situation in mind. Any insight or suggestions you may provide will be very welcome. Thanks! B.A. -- B.A. Baracus: I thought you weren''t crazy no more? Murdock: Only on paper. -- Posted with http://DevLists.com. Sign up and save your mailb...

What is the best way to create a drop down where the viewable text in a concatenation of 2 or more columns? For instance, I hane a lookup table with these columns. Model FOO columns: id , name, phone In my drop select tag, I''d like the user to see: "name1 phone1" "name2 phone2" etc.. I know I can do this using find_by_sql . .. But, isn''t there a more