Created
November 7, 2009 11:03
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Rails model without table
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#In app/models/tableless.rb | |
class Tableless < ActiveRecord::Base | |
def self.columns | |
@columns ||= []; | |
end | |
def self.column(name, sql_type = nil, default = nil, null = true) | |
columns << ActiveRecord::ConnectionAdapters::Column.new(name.to_s, default, | |
sql_type.to_s, null) | |
end | |
# Override the save method to prevent exceptions. | |
def save(validate = true) | |
validate ? valid? : true | |
end | |
end | |
#In app/models/foo.rb | |
class Foo < Tableless | |
column :bar, :string | |
validates_presence_of :bar | |
end | |
#In script/console | |
Loading development environment (Rails 2.2.2) | |
>> foo = Foo.new | |
=> #<Foo bar: nil> | |
>> foo.valid? | |
=> false | |
>> foo.errors | |
=> #<ActiveRecord::Errors:0x235b270 @errors={"bar"=>["can't be blank"]}, @base=#<Foo bar: nil>> |
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