解决打包时文件过多插库错误

db/migrate/20150415032102_change_file_digests.rb

@@ -0,0 +1,9 @@
+class ChangeFileDigests < ActiveRecord::Migration
+  def up
+    change_column :zip_packs, :file_digests, :text
+  end
+
+  def down
+    change_column :zip_packs, :file_digests, :string
+  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 => 20150402015402) do
+ActiveRecord::Schema.define(:version => 20150415032102) do
 
   create_table "activities", :force => true do |t|
     t.integer "act_id",   :null => false
@@ -654,16 +654,6 @@ ActiveRecord::Schema.define(:version => 20150402015402) do
 
   add_index "journal_details", ["journal_id"], :name => "journal_details_journal_id"
 
-  create_table "journal_details_copy", :force => true do |t|
-    t.integer "journal_id",               :default => 0,  :null => false
-    t.string  "property",   :limit => 30, :default => "", :null => false
-    t.string  "prop_key",   :limit => 30, :default => "", :null => false
-    t.text    "old_value"
-    t.text    "value"
-  end
-
-  add_index "journal_details_copy", ["journal_id"], :name => "journal_details_journal_id"
-
   create_table "journal_replies", :id => false, :force => true do |t|
     t.integer "journal_id"
     t.integer "user_id"
@@ -1085,12 +1075,12 @@ ActiveRecord::Schema.define(:version => 20150402015402) do
   end
 
   create_table "roles", :force => true do |t|
-    t.string  "name",              :limit => 90
-    t.integer "position"
-    t.boolean "assignable"
-    t.integer "builtin"
+    t.string  "name",              :limit => 30, :default => "",        :null => false
+    t.integer "position",                        :default => 1
+    t.boolean "assignable",                      :default => true
+    t.integer "builtin",                         :default => 0,         :null => false
     t.text    "permissions"
-    t.string  "issues_visibility", :limit => 90
+    t.string  "issues_visibility", :limit => 30, :default => "default", :null => false
   end
 
   create_table "schools", :force => true do |t|
@@ -1468,7 +1458,7 @@ ActiveRecord::Schema.define(:version => 20150402015402) do
     t.string   "file_path"
     t.integer  "pack_times",   :default => 1
     t.integer  "pack_size",    :default => 0
-    t.string   "file_digests"
+    t.text     "file_digests"
     t.datetime "created_at",                  :null => false
     t.datetime "updated_at",                  :null => false
   end