activemodel

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get validations from model

How cat I get list of validations defined in model Example: class ModelName validates_presence_of :field_name[详细]

2023-01-22 07:50 分类：问答
ActiveModel::Naming attributes definition

I\'m working on a rails3 app and开发者_StackOverflow中文版 I\'m a little bit confused with Active Model.[详细]

2023-01-20 08:24 分类：问答
How to localize ActiveModel error messages in Rails 3?

class User include ActiveModel::Validations validates_presense_of :first_name validates_length_of :last_name, :in开发者_Python百科 => 3..20, :too_long => \"pick a shorter last name\", :too_short[详细]

2023-01-18 13:44 分类：问答
Where are Default Validation Error Messages in Rails 3.0?

Where are the default validation error messages in Rails 3.0? What is the equivalent of ActiveRecord开发者_高级运维::Error.default_error_messages[:taken], for example? I have gotten as far as finding[详细]

2023-01-17 15:55 分类：问答
Rails 3: Custom error message in validation

I don\'t understand why the following is not working in Rails 3. I\'m getting \"undefined local variable or method `custom_message\'\" error.[详细]

2023-01-17 02:09 分类：问答
Disabling ActiveModel callbacks

I published an article on disabling ActiveModel callbacks, but I’m not completely sure this is the prettiest way to开发者_C百科 do something like this.[详细]

2023-01-16 13:29 分类：问答
How to set ActiveModel::Base.include_root_in_json to false?

I\'m using Rails 3 w/ Mongoid, (so no ActiveRecord). Mongoid uses ActiveModel\'s \"to_json\" method, and by default that method includes the root object in the JSON (which I don\'t want).[详细]

2023-01-04 06:05 分类：问答
How do I do a join in ActiveRecord after records have been returned?

I am using ActiveRecord in Rails 3 to pull data from two different tables in two different databases.These databases can not join on each other, but I have the need to do a simple join after-the-fact.[详细]

2023-01-02 13:06 分类：问答
ruby one-liner for this possible?

Any chance the 2nd and 3rd lines can be combined in an one-liner and hopefully save one valuable开发者_如何学编程?[详细]

2023-01-02 10:24 分类：问答
Rails 3 ActiveModel Nested Class I18n

Given the following class definition in ruby: class Conversation class Message include ActiveModel::Validations[详细]

2022-12-31 10:15 分类：问答