association_proxy.is_a?(Array), acts like an array, but doesn't save like an array
Sep
26
2007
So, how many times have you had the urge to write:
@post.comments.reject!(&:spam?)
@post.save
assert @post.comments.is_a?(Array)
def test_association_proxy_really_looks_like_an_array_but_it_isnt
assert Post.find(1).comments.is_a?(Array)
assert Post.find(1).comments.select(&:spam?).length > 0
post = Post.find(1)
post.comments.reject!(&:spam?)
post.save!
assert_equal [], post.comments.select(&:spam?)
assert Post.find(1).comments.select(&:spam?).length > 0
end
post.comments.delete(post.comments.select(&:spam?))
