pentabarf import updated

* more documentation on importing from pentabarf
* improved event rating import speed
* carefully import long links
* fix user role import
* redirect deleted users
* respect conference timezone on event import
* sorted Gemfile

Gemfile

@@ -4,34 +4,34 @@ ruby "1.9.3"
 
 gem 'rails', '3.2.11'
 
-gem 'sqlite3'
-gem 'pg'
 gem 'mysql2'
+gem 'pg'
+gem 'sqlite3'
 
+gem 'acts_as_commentable'
+gem 'acts_as_indexed'
+gem 'barista'
 gem 'bcrypt-ruby'
 gem 'cancan'
-gem 'haml'
-gem 'acts_as_commentable'
-gem 'will_paginate'
-gem 'paperclip', '< 3.0'
-gem 'gravatar-ultimate'
+gem 'cocoon'
 gem 'formtastic', '~> 2.1.0'
+gem 'formtastic-bootstrap', :git => "git://github.com/katastrophie/formtastic-bootstrap.git"
+gem 'gravatar-ultimate'
+gem 'haml'
 gem 'jquery-rails', '~> 1.0.19'
-gem 'acts_as_indexed'
-gem 'cocoon'
-gem 'paper_trail', '2.3.3'
+gem 'json'
 gem 'localized_language_select', '0.2.0', :git => "git://github.com/oneiros/localized_language_select.git"
+gem 'nokogiri'
+gem 'paperclip', '< 3.0'
+gem 'paper_trail', '2.3.3'
+gem 'prawn'
+gem 'prawn_rails'
 gem 'ransack'
-gem 'transitions', :require => ["transitions", "active_record/transitions"]
-gem 'json'
-gem 'barista'
 gem 'ri_cal'
-gem 'nokogiri'
 gem 'settingslogic'
+gem 'transitions', :require => ["transitions", "active_record/transitions"]
 gem 'twitter-bootstrap-rails', :git => "git://github.com/seyhunak/twitter-bootstrap-rails.git", :ref => "5e62b21c8f258010af7f5bc858b89a24f16936a9"
-gem 'formtastic-bootstrap', :git => "git://github.com/katastrophie/formtastic-bootstrap.git"
-gem 'prawn'
-gem 'prawn_rails'
+gem 'will_paginate'
 
 group :development, :test do
   gem 'bullet'
@@ -40,19 +40,19 @@ group :development, :test do
 end
 
 group :test do
-  gem 'minitest'
   gem 'factory_girl_rails', '~> 1.2.0'
+  gem 'minitest'
   gem 'turn', :require => false
 end
 
 group :development do
   gem 'hpricot'
-  gem 'yaml_db'
   gem 'shotgun'
+  gem 'yaml_db'
 end
 
 group :assets do
-  gem 'sass-rails', " ~> 3.2.0"  
   gem 'coffee-rails', " ~> 3.2.0"
+  gem 'sass-rails', " ~> 3.2.0"  
   gem 'uglifier'  
 end 

README.pentabarf.md

@@ -5,13 +5,15 @@ These notes may help to import data from a pentabarf postgresql database.
 Using postgresql as a database for frab is still somewhat untested. The pentabarf 
 import is however likely to fail, as pentabarf uses text fields instead of char(255)
 
+Imagemagick needs to be installed as we will convert pjpeg and tiff to png.
+
 ## postgresql installation
 
-install postgresql
+Install postgresql
 
 ## postgresql setup
 
-* Make it listen on localhost
+* make it listen on localhost
 * create a psql user and grant some access on relations
 * add a pentabarf entry for the postgresql database to your rails db environment
 
@@ -27,13 +29,22 @@ Make a copy of your postgresql database, as we need to do some changes
 
 Grant all permissions on the database copy to the import user account:
 
-    psql cccv
-    select 'grant all on '||schemaname||'.'||tablename||' to bar;' from pg_tables  
+    psql NEWNAME
+    -- generate the grant statements
+    select 'grant all on '||schemaname||'.'||tablename||' to frab;' from pg_tables  
       order by schemaname, tablename;
+    -- copy&paste the generated statements into psql
+
+    -- in case you re-created the NEWNAME copy, re-grant permissions to the user
+    REVOKE ALL ON SCHEMA public FROM frab;
+    GRANT ALL ON SCHEMA public TO frab;
+    REVOKE ALL ON SCHEMA auth FROM frab;
+    GRANT ALL ON SCHEMA auth TO frab;
 
 ## data migration
 
-I had to delete some images, too.
+Conference acronyms need to be within /^[a-zA-Z0-9_-]*$/
+Whitespaces are removed automatically, but you need to replace unicode characters manually.
 
     -- conference acronyms appear in URLs, they may not contain whitespace in frab:
     UPDATE conference SET acronym = replace(acronym, ' ', '');
@@ -41,7 +52,6 @@ I had to delete some images, too.
 
 ## import 
 
-
 Delete any old mappings from previous imports. Maybe delete the old filess, too.
 
     rm tmp/*mappings.yml
@@ -49,4 +59,19 @@ Delete any old mappings from previous imports. Maybe delete the old filess, too.
     RAILS_ENV=production rake db:reset
     RAILS_ENV=production rake pentabarf:import:all
 
+## testing
+
+You can check on the barf data like this:
+
+    RAILS_ENV="development" rails console
+    @p = PentabarfImportHelper.new
+    @barf = @p.instance_variable_get('@barf')
+    @barf.select_all("SELECT * FROM conference")
+
+## privileges
+
+You maybe want to drop all users to the coordinator role, to start fresh.
+
+User.all.select { |u| u.role == "admin" or u.role == "orga" }.each { |u| puts "dropping ${u.email}"; u.role = "coordinator"; u.save }
+
 

app/controllers/application_controller.rb

@@ -49,7 +49,13 @@ class ApplicationController < ActionController::Base
   end
 
   def current_user
-    @current_user ||= User.find(session[:user_id]) if session[:user_id]
+    user = nil
+    # maybe the user got deleted, so lets wrap this in a rescue block
+    begin
+      user = User.find(session[:user_id]) if session[:user_id]
+    rescue
+    end
+    @current_user ||= user
   end
 
   def authenticate_user!