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counter cache can be set as optional
Reported by krzys (at kristoff) | April 15th, 2009 @ 04:03 PM | in 3.x
probl: we have to models: class Tagging < ActiveRecord::Base belongs_to :taggable, :polymorphic => true, :counter_cache => true end
class Item < ActiveRecord::Base has_one :tagging, :as => :taggable end
In this situation, any other associations of Tagging are fine
(as long as they have counter column). There is no need to have it
on Item, but it throws: Exception raised: Class:
<ActiveRecord::StatementInvalid> Message: <"Mysql::Error:
Unknown column 'taggings_count' in 'field list': UPDATE
items SET taggings_count =
COALESCE(taggings_count, 0) + 1 WHERE (id
= 2) ">
(it's in the test in attached patch)
This patch fixes that, allowing user to specify :counter_cache_optional => true
The default behavior is unaltered. Tested for MySQl and SQLite3 but should make no difference on db layer anyway.
Comments and changes to this ticket
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Santiago Pastorino February 2nd, 2011 @ 05:03 PM
- State changed from “new” to “open”
- Importance changed from “” to “”
This issue has been automatically marked as stale because it has not been commented on for at least three months.
The resources of the Rails core team are limited, and so we are asking for your help. If you can still reproduce this error on the 3-0-stable branch or on master, please reply with all of the information you have about it and add "[state:open]" to your comment. This will reopen the ticket for review. Likewise, if you feel that this is a very important feature for Rails to include, please reply with your explanation so we can consider it.
Thank you for all your contributions, and we hope you will understand this step to focus our efforts where they are most helpful.
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Santiago Pastorino February 2nd, 2011 @ 05:03 PM
- State changed from “open” to “stale”
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krzys (at kristoff)