Shorten index name on slugs so that it always works. Apply previous changes to cached_slug to db/migrate/ migrations too

Author: parndt

base/db/migrate/20100913234706_create_refinerycms_core_schema.rb

@@ -9,7 +9,7 @@ def self.up
       t.datetime "created_at"
     end
 
-    add_index ::Slug.table_name, ["name", "sluggable_type", "scope", "sequence"], :name => "index_#{::Slug.table_name}_on_name_sluggable_type_scope_and_sequence", :unique => true
+    add_index ::Slug.table_name, ["name", "sluggable_type", "scope", "sequence"], :name => "index_#{::Slug.table_name}_on_n_s_s_and_s", :unique => true
     add_index ::Slug.table_name, ["sluggable_id"], :name => "index_#{::Slug.table_name}_on_sluggable_id"
   end
 

db/migrate/20100913234706_create_refinerycms_core_schema.rb

@@ -10,7 +10,7 @@ def self.up
         t.datetime "created_at"
       end
 
-      add_index ::Slug.table_name, ["name", "sluggable_type", "scope", "sequence"], :name => "index_#{::Slug.table_name}_on_name_sluggable_type_scope_and_sequence", :unique => true
+      add_index ::Slug.table_name, ["name", "sluggable_type", "scope", "sequence"], :name => "index_#{::Slug.table_name}_on_n_s_s_and_s", :unique => true
       add_index ::Slug.table_name, ["sluggable_id"], :name => "index_#{::Slug.table_name}_on_sluggable_id"
     end
   end

db/migrate/20100913234708_create_refinerycms_pages_schema.rb

@@ -36,7 +36,6 @@ def self.up
         t.integer  "lft"
         t.integer  "rgt"
         t.integer  "depth"
-        t.string   "cached_slug"
       end
 
       add_index ::Page.table_name, ["depth"], :name => "index_#{::Page.table_name}_on_depth"

db/migrate/20101216194133_remove_cached_slug_from_pages.rb

@@ -1,9 +1,11 @@
 class RemoveCachedSlugFromPages < ActiveRecord::Migration
   def self.up
-    remove_column :pages, :cached_slug
+    if ::Page.column_names.map(&:to_s).include?('cached_slug')
+      remove_column ::Page.table_name, :cached_slug
+    end
   end
 
   def self.down
-    add_column :pages, :cached_slug, :string
+    # Don't add this column back, it breaks stuff.
   end
 end