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Add a sweeper to clean up cache entries when a user's visibility or

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display name changes.
This commit is contained in:
Tom Hughes 2010-01-21 11:39:28 +00:00
parent eba3e9f6b8
commit 86cbb404e9
2 changed files with 53 additions and 0 deletions
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51
app/models/user_sweeper.rb Normal file
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class UserSweeper < ActionController::Caching::Sweeper
observe User
def before_update(record)
expire_cache_for(User.find(record.id), record)
end
def before_destroy(record)
expire_cache_for(record, nil)
end
private
def expire_cache_for(old_record, new_record)
if old_record and
(new_record.nil? or
old_record.visible != new_record.visible or
old_record.display_name != new_record.display_name)
old_record.diary_entries.each do |entry|
expire_action(:controller => 'diary_entry', :action => 'view', :id => entry.id)
expire_action(:controller => 'diary_entry', :action => 'list', :language => entry.language_code, :display_name => nil)
expire_action(:controller => 'diary_entry', :action => 'rss', :language => entry.language_code, :display_name => nil)
end
expire_action(:controller => 'diary_entry', :action => 'list', :language => nil, :display_name => nil)
expire_action(:controller => 'diary_entry', :action => 'list', :language => nil, :display_name => old_record.display_name)
expire_action(:controller => 'diary_entry', :action => 'rss', :language => nil, :display_name => nil)
expire_action(:controller => 'diary_entry', :action => 'rss', :language => nil, :display_name => old_record.display_name)
old_record.traces.each do |trace|
expire_action(:controller => 'trace', :action => 'view', :id => trace.id)
expire_action(:controller => 'trace', :action => 'view', :display_name => old_record.display_name, :id => trace.id)
trace.tags.each do |tag|
expire_action(:controller => 'trace', :action => 'list', :display_name => nil, :tag => tag.tag)
expire_action(:controller => 'trace', :action => 'list', :display_name => old_record.display_name, :tag => tag.tag)
expire_action(:controller => 'trace', :action => 'georss', :display_name => nil, :tag => tag.tag)
expire_action(:controller => 'trace', :action => 'georss', :display_name => old_record.display_name, :tag => tag.tag)
end
end
expire_action(:controller => 'trace', :action => 'list', :display_name => nil, :tag => nil)
expire_action(:controller => 'trace', :action => 'list', :display_name => old_record.display_name, :tag => nil)
expire_action(:controller => 'trace', :action => 'georss', :display_name => nil, :tag => nil)
expire_action(:controller => 'trace', :action => 'georss', :display_name => old_record.display_name, :tag => nil)
end
end
end