remove restriction on guid length

Changelog.md

@@ -6,6 +6,7 @@
 * Drop misleading fallback donation form. [Proposal](https://www.loomio.org/discussions/1045?proposal=2722)
 * Update Typhoeus to 0.6.3 and refactor HydraWrapper. [#4162](https://github.com/diaspora/diaspora/pull/4162)
 * Bump recomended Ruby version to 1.9.3-p448, see [Ruby news](http://www.ruby-lang.org/en/news/2013/06/27/hostname-check-bypassing-vulnerability-in-openssl-client-cve-2013-4073/).
+* Remove length restriciton on GUIDs in the database schema [#4249](https://github.com/diaspora/diaspora/pull/4249)
 
 ## Bug fixes
 

db/migrate/20130613203350_remove_limit_from_root_guid_in_posts.rb

@@ -0,0 +1,9 @@
+class RemoveLimitFromRootGuidInPosts < ActiveRecord::Migration
+  def up
+    change_column :posts, :root_guid, :string
+  end
+
+  def down
+    change_column :posts, :root_guid, :string, limit: 30
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20130429073928) do
+ActiveRecord::Schema.define(:version => 20130613203350) do
 
   create_table "account_deletions", :force => true do |t|
     t.string  "diaspora_handle"
@@ -213,7 +213,7 @@ ActiveRecord::Schema.define(:version => 20130429073928) do
     t.text   "data",                 :null => false
   end
 
-  add_index "o_embed_caches", ["url"], :name => "index_o_embed_caches_on_url", :length => {"url"=>255}
+  add_index "o_embed_caches", ["url"], :name => "index_o_embed_caches_on_url"
 
   create_table "participations", :force => true do |t|
     t.string   "guid"
@@ -297,7 +297,7 @@ ActiveRecord::Schema.define(:version => 20130429073928) do
     t.string   "provider_display_name"
     t.string   "actor_url"
     t.string   "objectId"
-    t.string   "root_guid",             :limit => 30
+    t.string   "root_guid"
     t.string   "status_message_guid"
     t.integer  "likes_count",                         :default => 0
     t.integer  "comments_count",                      :default => 0