I am new to Datamapper. I have written a Rails application in which I have
used three models A, B and C.
* class A
include DataMapper::Resource
property :id, Serial
has n, :cs, :through => Resource
end
class C
include DataMapper::Resource
property :id, Serial
has n, :c_as
has n, :as, :through => :c_as
end
class B
include DataMapper::Resource
belongs_to :a, :required => true
belongs_to :c, :required => true
end*
Now as part of index action of my as_controller in *index.html.haml* I have
used the following codes:
*-a.c.each do |c|
...*
In this *a.c.each *lazy loading happen, so in each iteration unnecessarily
the statement *a.c* is being evaluated that takes too much time, even if I
same *a.c* to a third temporary object like *b = a.c * and use *b.each*then
also lazy loading happens on this line only. Is there any way to avoid
that so that the statement is evaluated only once just before this block?
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