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fixed migration, added deletion of unused post_visibilities

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danielgrippi 2011-03-29 12:41:55 -07:00
parent 97d8b34599
commit 3615c448d2
2 changed files with 32 additions and 12 deletions
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38
db/migrate/20110328202414_post_visibilities_on_contacts.rb
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@ -8,16 +8,9 @@ class PostVisibilitiesOnContacts < ActiveRecord::Migration
WHERE people.owner_id = aspects.user_id
SQL
ids = execute("SELECT pv.id #{where_clause}").to_a
execute("INSERT into aspect_visibilities SELECT pv.id, pv.post_id, pv.aspect_id, pv.created_at, pv.updated_at #{where_clause}")
unless ids.blank?
execute("INSERT into aspect_visibilities SELECT pv.post_id, pv.aspect_id #{where_clause}")
execute <<SQL
DELETE FROM post_visibilities
WHERE post_visibilities.id IN (#{ids.join(',')})
SQL
end
execute("DELETE pv #{where_clause}")
end
def self.set_pv_contact_ids
@ -33,23 +26,48 @@ SQL
SQL
end
def self.delete_duplicate_pvs
execute('DELETE FROM post_visibilities WHERE post_visibilities.contact_id = 0')
duplicate_rows = execute <<SQL
SELECT COUNT(pv.contact_id), pv.contact_id, pv.post_id from post_visibilities AS pv
GROUP BY pv.contact_id, pv.post_id
HAVING COUNT(*)>1;
SQL
duplicate_rows.each do |row|
count = row.first
contact_id = row[1]
post_id = row.last
execute <<SQL
DELETE FROM post_visibilities AS pv
WHERE pv.contact_id = #{contact_id} AND pv.post_id = #{post_id}
LIMIT #{count-1}
SQL
end
end
def self.up
create_table :aspect_visibilities do |t|
t.integer :post_id, :null => false
t.integer :aspect_id, :null => false
t.timestamps
end
add_index :aspect_visibilities, [:post_id, :aspect_id], :unique => true
add_foreign_key :aspect_visibilities, :aspects, :dependent => :delete
add_foreign_key :aspect_visibilities, :posts, :dependent => :delete
add_column :post_visibilities, :contact_id, :integer, :null => false
add_index :post_visibilities, [:contact_id, :post_id], :unique => true
move_author_pvs_to_aspect_pvs
set_pv_contact_ids
remove_index :post_visibilities, [:aspect_id, :post_id]
remove_column :post_visibilities, :aspect_id
delete_duplicate_pvs
add_index :post_visibilities, [:contact_id, :post_id], :unique => true
add_foreign_key :post_visibilities, :contacts, :dependent => :delete
add_foreign_key :post_visibilities, :posts, :dependent => :delete
end

6
db/schema.rb
View file

@ -24,8 +24,10 @@ ActiveRecord::Schema.define(:version => 20110328202414) do
add_index "aspect_memberships", ["contact_id"], :name => "index_aspect_memberships_on_contact_id"
create_table "aspect_visibilities", :force => true do |t|
t.integer "post_id", :null => false
t.integer "aspect_id", :null => false
t.integer "post_id", :null => false
t.integer "aspect_id", :null => false
t.datetime "created_at"
t.datetime "updated_at"
end
add_index "aspect_visibilities", ["aspect_id"], :name => "aspect_visibilities_aspect_id_fk"