make migrations actually work, renumber and fix

db/migrate/013_create_links.rb

@@ -0,0 +1,14 @@
+class CreateLinks < ActiveRecord::Migration
+  def self.up
+    create_table :links do |t|
+      t.integer :from_page_id
+      t.integer :to_page_id
+
+      t.timestamps
+    end
+  end
+
+  def self.down
+    drop_table :links
+  end
+end

db/migrate/015_page_site_fk.rb

@@ -0,0 +1,12 @@
+class PageSiteFk < ActiveRecord::Migration
+  def self.up
+    add_column :pages, :site_id, :integer
+    add_column :page_versions, :site_id, :integer
+    Page.update_all 'site_id=1'
+  end
+
+  def self.down
+    remove_column :pages, :site_id
+    remove_column :page_versions, :site_id
+  end
+end

db/migrate/016_add_locking_to_pages.rb

@@ -0,0 +1,9 @@
+class AddLockingToPages < ActiveRecord::Migration
+  def self.up
+    add_column :pages, :locked_at, :datetime 
+  end
+
+  def self.down
+    remove_column :pages, :locked_at
+  end
+end