gist: 150908


  
    
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              # This is a straight up has_many :through 'tagging' model. No plugins.
 
>> t.update_attributes! :taggings_count => t.taggings.count
=> true
>> t.taggings_count
=> 9
>> t.reload
=> #<Tag id: 1, ...>
>> t.taggings_count
=> 0
 
>> # wtf?
 
>> # got it
>> Tag.update_counters(t.id, :taggings_count => t.taggings.count)
=> 1
>> t.reload
=> #<Tag id: 1, ...>
>> t.taggings_count
=> 9
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