Supose I have a simple has_many relationship betwen model_1 and
model_2:
class Model1 < ActiveRecord::Base
has_many :models_2
end
class Model2 < ActiveRecord::Base
belongs_to :model_1
end
Now, I create an instance of Model2 through the relationship:
irb>m1 = Model1.first
irb>m2 = m1.models_2.new
Now, if I want to ask for the size of the relationship, there's a huge
difference between Rails 3.0.x and Rails 3.1.
Following the previous example, in Rails 3.0.x i get:
irb>m1.models_2.any?
irb>false
irb>m1.models_2.size
irb>0
This means, new objects are not being considered
This exact same query in Rails 3.1:
irb>m1.models_2.any?
irb>true #OMG!!
irb>m1.models_2.size
irb>1
So, the solution is:
irb>m1.models_2.all.any?
irb>false
irb>m1.models_2.all.size
irb>0
If I have to change ALL my relationships with .all, I'm in a big
trouble... am I missing something?
Thank you very much.
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