###### Create a new banner placement ######
>> BannerPlacement.create!  :page => Page.root, :banner => Banner.find(:first)
  Page Load (0.000575)   SELECT * FROM pages WHERE (parent_id IS NULL) ORDER BY virtual DESC, title ASC LIMIT 1
  Banner Load (0.000288)   SELECT * FROM banners LIMIT 1
  SQL (0.000156)   BEGIN
  BannerPlacement Load (0.000331)   SELECT * FROM banner_placements WHERE (banner_placements.page_id = 1 AND banner_placements.banner_id = 1) LIMIT 1
  BannerPlacement Create (0.000287)   INSERT INTO banner_placements ("created_at", "updated_at", "page_id", "weight", "banner_id") VALUES('2009-01-26 00:39:35.457135', '2009-01-26 00:39:35.457135', 1, 1, 1)
  SQL (0.000205)   SELECT currval('banner_placements_id_seq')
  SQL (0.001648)   COMMIT
=> #<BannerPlacement id: 38, banner_id: 1, page_id: 1, weight: 1, created_at: "2009-01-26 00:39:35", updated_at: "2009-01-26 00:39:35">

###### Destroy a child page ######
>> Page.root.children.first.destroy
  Page Load (0.000605)   SELECT * FROM pages WHERE (parent_id IS NULL) ORDER BY virtual DESC, title ASC LIMIT 1
  Page Load (0.000617)   SELECT * FROM pages WHERE (pages.parent_id = 1) ORDER BY virtual DESC, title ASC
  SQL (0.000161)   BEGIN
  Page Load (0.000379)   SELECT * FROM pages WHERE (pages.parent_id = 2) ORDER BY virtual DESC, title ASC
  PagePart Load (0.001449)   SELECT * FROM page_parts WHERE (page_parts.page_id = 2) ORDER BY id

  PagePart Destroy (0.000373)    DELETE FROM page_parts
 WHERE "id" = 2

  SQL (0.000446)   SELECT count(*) AS count_all FROM banner_placements WHERE (banner_placements.page_id = 2) 
  Page Load (0.000308)   SELECT * FROM pages WHERE (pages."id" = 1) 
  SQL (0.000258)   SELECT count(*) AS count_all FROM banner_placements WHERE (banner_placements.page_id = 1) 
  BannerPlacement Load (0.000228)   SELECT * FROM banner_placements WHERE (banner_placements.page_id = 1) 
###### Banner placement that I just created is destroyed! ######
  BannerPlacement Destroy (0.000203)    DELETE FROM banner_placements
 WHERE "id" = 38