Merge pull request #97 from it3s/migration

Migration

.gitignore

@@ -41,6 +41,7 @@
 
 # uploads
 /public/uploads
+/public/mootiro_media
 
 # vagrant
 .vagrant

Gemfile

@@ -49,6 +49,7 @@ gem 'differ'                        # build diffs
 gem 'safe_yaml', require: false     # safe yaml loading
 gem "active_model_serializers", "~> 0.8.0"  # model serializer
 gem 'public_activity'               # record users activity
+gem 'connection_pool'               # connection pool used for mootiro migration
 
 gem 'better_errors'                 # better error page, and shell session when crash
 gem 'binding_of_caller'             # used by better_errors

Gemfile.lock

@@ -406,6 +406,7 @@ DEPENDENCIES
   clean_logger
   coffee-rails (~> 4.0.1)
   compass-rails
+  connection_pool
   coveralls
   database_cleaner
   differ

app/models/mootiro_oid.rb

@@ -0,0 +1,3 @@
+class MootiroOID < ActiveRecord::Base
+  belongs_to :content, polymorphic: true
+end

db/migrate/20141122002836_create_mootiro_oids.rb

@@ -0,0 +1,8 @@
+class CreateMootiroOids < ActiveRecord::Migration
+  def change
+    create_table :mootiro_oids do |t|
+      t.string     :oid, index: true
+      t.references :content, polymorphic: true, index: true
+    end
+  end
+end

db/migrate/20141122232948_add_migrated_info_to_maps.rb

@@ -0,0 +1,5 @@
+class AddMigratedInfoToMaps < ActiveRecord::Migration
+  def change
+    add_column :maps, :migrated_info, :json
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20141030173752) do
+ActiveRecord::Schema.define(version: 20141122232948) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -160,11 +160,20 @@
     t.datetime "updated_at"
     t.integer  "administrator_id",              null: false
     t.json     "additional_info"
+    t.json     "migrated_info"
   end
 
   add_index "maps", ["administrator_id"], :name => "index_maps_on_administrator_id"
   add_index "maps", ["tags"], :name => "index_maps_on_tags"
 
+  create_table "mootiro_oids", force: true do |t|
+    t.string  "oid"
+    t.integer "content_id"
+    t.string  "content_type"
+  end
+
+  add_index "mootiro_oids", ["content_id", "content_type"], :name => "index_mootiro_oids_on_content_id_and_content_type"
+
   create_table "notifications", force: true do |t|
     t.integer  "user_id",                        null: false
     t.integer  "activity_id",                    null: false

docs/mootiro_migration.md

@@ -0,0 +1,37 @@
+## migrating from mootiro
+
+- run Intermediate redis (set a really long pass)
+- set on the server the following env vars:
+
+```
+export REDIS_HOST=host
+export REDIS_PORT=6379
+export REDIS_PASS=really long redis server password
+```
+
+- run django shell
+
+```
+from migrate.tasks import migrate_all
+
+migrate_all()
+```
+
+- on the Meppit server set these env vars
+
+```
+export MOOTIRO_REDIS_HOST=host
+export MOOTIRO_REDIS_PORT=6379
+export MOOTIRO_REDIS_PASS=really long redis server password
+```
+
+- copy all media files from Mootiro `media/upload` folder to Meppit `public/mootiro_media`
+
+- run the task
+
+```
+rake mootiro_import
+```
+
+WARN: sometimes the connection with redis dies, If that happens just run again the task, and it will resume
+      from where it stoped