TEST_CODEOWNERS/rails
3
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

highlighted find(array of keys) behaviour when one or more record is not found

Browse Source
This commit is contained in:
Vijay Dev 2010-12-25 22:07:31 +05:30
parent b30293f2f6
commit 8618ef7537
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
railties/guides/source/active_record_querying.textile
View File

@ -150,7 +150,7 @@ SQL equivalent of the above is:
SELECT * FROM clients WHERE (clients.id IN (1,10))
</sql>
<tt>Model.find(array_of_primary_key)</tt> will raise an +ActiveRecord::RecordNotFound+ exception unless a matching record is found for <strong>all</strong> of the supplied primary keys.
WARNING: <tt>Model.find(array_of_primary_key)</tt> will raise an +ActiveRecord::RecordNotFound+ exception unless a matching record is found for <strong>all</strong> of the supplied primary keys.
h4. Retrieving Multiple Objects in Batches
@ -569,9 +569,7 @@ SELECT clients.* FROM clients LEFT OUTER JOIN addresses ON addresses.client_id =
h4. Using Array/Hash of Named Associations
WARNING: This method only works with +INNER JOIN+,
<br />
WARNING: This method only works with +INNER JOIN+.
Active Record lets you use the names of the "associations":association_basics.html defined on the model as a shortcut for specifying +JOIN+ clause for those associations when using the +joins+ method.