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POResolving and Fixing MongoDB / Mongoid ID issues
 

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  1. POResolving and Fixing MongoDB / Mongoid ID issues
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    <p>This is related to another StackOverflow question from a year ago. But, a bit different. </p> <p>This is in Ruby/Mongoid: 2.2.6.</p> <p>When I got going with MongoDB, it looks like we stored the ID of an MongoDb document incorrectly, because a simple find on an ID is not working, yet it's returning the document when we run a where query on other attributes. </p> <p>I've tried "resetting" the id field by using the object returned from the where and setting the "id" and the "_id" to a BSON::ObjectId version of the stored string. This did not work, as the then record is still not queryable by this field. </p> <p>Any other suggestions before I just completely wipe the disk (losing months of production data) and starting over? </p> <p>Edit: An example of a document that is retuned in the loop that is not retrievable. </p> <pre><code>{"_id"=&gt;"4f47267193546d160b0171a2", "attribute_tags"=&gt;[{"tag"=&gt;"website"}, {"tag"=&gt;"twitter"}, {"tag"=&gt;"website"}, {"tag"=&gt;"twitter"}], "contact_info"=&gt;{"facebook"=&gt;[], "success"=&gt;true, "created_at"=&gt;2012-02-24 05:58:06 UTC, "tags"=&gt;[], "twitter"=&gt;[], "email"=&gt;[], "phone"=&gt;[], "linkedin"=&gt;[], "google_plus"=&gt;[], "youtube"=&gt;[], "contact_form"=&gt;false}, "created_at"=&gt;2012-02-24 05:56:01 UTC, "data"=&gt;{"twitter_followers_count"=&gt;112, "twitter_is_translator"=&gt;112, "twitter_protected"=&gt;false, "twitter_url"=&gt;"http://www.bettyunderground.com", "twitter_verified"=&gt;false, "twitter_statuses_count"=&gt;2040, "twitter_listed_count"=&gt;14, "twitter_geo_enabled"=&gt;true, "twitter_friends_count"=&gt;124, "twitter_created_at"=&gt;"Fri Jul 17 21:41:00 +0000 2009", "twitter_contributors_enabled"=&gt;false, "enriched_at"=&gt;2012-02-24 05:58:09 UTC}, "demographics"=&gt;{}, "description"=&gt;"The trials and tribulations of a polemicist", "directory_ids"=&gt;[], "forums"=&gt;[], "found_at_url"=&gt;"http://www.bettyunderground.com", "geographics"=&gt;{"language"=&gt;"en", "location"=&gt;"San Francisco, CA"}, "hashtags"=&gt;{"tag"=&gt;{"website"=&gt;true, "twitter"=&gt;true}, "reachable_via"=&gt;{"twitter"=&gt;true}}, "host_names"=&gt;[], "ignore_project_ids"=&gt;[], "keyword_scores"=&gt;{"return policy"=&gt;0.0}, "keywords"=&gt;["return policy"], "last_contact_info_update"=&gt;2012-02-24 05:58:09 UTC, "name"=&gt;"Betty Underground", "new_profiles"=&gt;[{"service"=&gt;"twitter", "user_id"=&gt;"BettyUndergrnd", "score"=&gt;1.0}, {"service"=&gt;"twitter", "username"=&gt;"BettyUndergrnd", "score"=&gt;1.0}], "presence_score"=&gt;0, "profile_url"=&gt;"http://a2.twimg.com/profile_images/1459407098/image_normal.jpg", "profiles_retrieved"=&gt;true, "references"=&gt;[], "share_counts"=&gt;{}, "tags"=&gt;["website", "twitter"], "twitter"=&gt;"BettyUndergrnd", "updated_at"=&gt;2012-03-17 10:08:09 UTC, "wordsmaster_ids"=&gt;[], "reachable_via"=&gt;[], "read_project_ids"=&gt;[]} </code></pre> <p>It doesn't have a ObjectId for the ID field. Not sure how it got busted this way, but that's the way it is. </p> <p>The code I'm using to modify it is:</p> <pre><code>#if d is the document old_id = d._id d["_id"] = BSON::ObjectId(old_id) d.save </code></pre> <p>I have placed a gist of doing this from my console. You can see exactly what I'm doing. </p> <p>Any thoughts would be appreciated. </p> <p><a href="https://gist.github.com/2087011" rel="nofollow">https://gist.github.com/2087011</a></p>
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    1. COYou mean if you use the id which the returned document to find the document, it can't be found?
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    2. COHi, can you show us how a sample document looks like, how you are resetting the _id and what does the query look like?
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    3. COxdazz: yes. If the document collection is called "entity", I can do: Entity.all.each {|x| Entity.find(x.id) } and it will error with a document not found. Entity.find(x._id) errors as well.
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