rake task to, hopefully, repair duplicate pet state ids cleanly

This commit is contained in:
Emi Matchu 2010-11-15 21:15:33 -05:00
parent 8e6a34b69c
commit e92e9947b8
2 changed files with 56 additions and 2 deletions

View file

@ -1,7 +1,8 @@
class PetState < ActiveRecord::Base class PetState < ActiveRecord::Base
SwfAssetType = 'biology' SwfAssetType = 'biology'
has_one :contribution, :as => :contributed has_many :contributions, :as => :contributed # in case of duplicates being merged
has_many :outfits
has_many :parent_swf_asset_relationships, :foreign_key => 'parent_id', has_many :parent_swf_asset_relationships, :foreign_key => 'parent_id',
:conditions => {:swf_asset_type => SwfAssetType} :conditions => {:swf_asset_type => SwfAssetType}
has_many :swf_assets, :through => :parent_swf_asset_relationships, :source => :biology_asset has_many :swf_assets, :through => :parent_swf_asset_relationships, :source => :biology_asset
@ -10,6 +11,34 @@ class PetState < ActiveRecord::Base
alias_method :swf_asset_ids_from_association, :swf_asset_ids alias_method :swf_asset_ids_from_association, :swf_asset_ids
def reassign_children_to!(main_pet_state)
self.contributions.each do |contribution|
contribution.contributed = main_pet_state
contribution.save
end
self.outfits.each do |outfit|
outfit.pet_state = main_pet_state
outfit.save
end
ParentSwfAssetRelationship.where(ParentSwfAssetRelationship.arel_table[:parent_id].eq(self.id)).delete_all
end
def reassign_duplicates!
raise "This may only be applied to pet states that represent many duplicate entries" unless duplicate_ids
pet_states = duplicate_ids.split(',').map do |id|
PetState.find(id.to_i)
end
main_pet_state = pet_states.shift
pet_states.each do |pet_state|
pet_state.reassign_children_to!(main_pet_state)
pet_state.destroy
end
end
def sort_swf_asset_ids!
self.swf_asset_ids = swf_asset_ids.split(',').map(&:to_i).sort.join(',')
end
def swf_asset_ids def swf_asset_ids
self['swf_asset_ids'] self['swf_asset_ids']
end end
@ -25,7 +54,7 @@ class PetState < ActiveRecord::Base
swf_asset_ids << asset_info[:part_id].to_i swf_asset_ids << asset_info[:part_id].to_i
end end
end end
swf_asset_ids_str = swf_asset_ids.join(',') swf_asset_ids_str = swf_asset_ids.sort.join(',')
if pet_type.new_record? if pet_type.new_record?
pet_state = self.new :swf_asset_ids => swf_asset_ids_str pet_state = self.new :swf_asset_ids => swf_asset_ids_str
else else
@ -71,4 +100,23 @@ class PetState < ActiveRecord::Base
pet_state.parent_swf_asset_relationships = relationships pet_state.parent_swf_asset_relationships = relationships
pet_state pet_state
end end
def self.repair_all!
self.transaction do
self.all.each do |pet_state|
pet_state.sort_swf_asset_ids!
pet_state.save
end
self.
select('pet_states.pet_type_id, pet_states.swf_asset_ids, GROUP_CONCAT(DISTINCT pet_states.id) AS duplicate_ids').
joins('INNER JOIN pet_states ps2 ON pet_states.pet_type_id = ps2.pet_type_id AND pet_states.swf_asset_ids = ps2.swf_asset_ids').
group('pet_states.pet_type_id, pet_states.swf_asset_ids').
having('count(*) > 1').
all.
each do |pet_state|
pet_state.reassign_duplicates!
end
end
end
end end

View file

@ -0,0 +1,6 @@
namespace :pet_states do
desc "Sort pet state SWFs, then remove duplicates and reassign children"
task :repair => :environment do
PetState.repair_all!
end
end