made migrations more robust

db/migrate/20091104114243_new_jsonobject_to_flexitypes.rb

@@ -1,6 +1,8 @@
 class NewJsonobjectToFlexitypes < ActiveRecord::Migration
   def self.up
+    puts 'NewJsonobjectToFlexitypes'
     Category.all.each do |category|
+      puts "Migrating category '#{category.title}' (ID #{category.id})"
       json = JSON.parse(category.schema_json, :create_additions => false)
       next if json.has_key?('json_class')
       json['json_class'] = "JsonObject::Schema"
@@ -32,12 +34,18 @@ def self.up
     end
 
     Document.all.each do |document|
-      json = JSON.parse(document.meta_json, :create_additions => false)
-      next if json.has_key?('json_class')
-      json['json_class'] = "JsonObject::Store"
-      document.meta_json = json.to_json
-      document.save
+      puts "Migrating document '#{document.title}' (ID #{document.id})"
+      begin
+        json = JSON.parse(document.meta_json, :create_additions => false)
+        next if json.has_key?('json_class')
+        json['json_class'] = "JsonObject::Store"
+        document.meta_json = json.to_json
+        document.save
+      rescue
+        puts "Error in Document #{document.id} #{document.title}"
+      end
     end
+
   end
 
   def self.down

db/migrate/20091112172212_get_dimensions_from_existing_files.rb

@@ -9,10 +9,13 @@ def self.up
         puts "  Posterframe: #{dim}"
       end
       if asset.file? && asset.file.is_image?
-        dim = Paperclip::Geometry.from_file(asset.file.path(:original))
-        asset.file_width  = dim.width
-        asset.file_height = dim.height
-        puts "  File: #{dim}"
+        filepath = asset.file.path(:original)
+        if File.exist?(filepath)
+          dim = Paperclip::Geometry.from_file(filepath)
+          asset.file_width  = dim.width
+          asset.file_height = dim.height
+          puts "  File: #{dim}"
+        end
       end
       asset.save
     end