RetailCRM-Mirror/doctrine2
1
0
Fork 0
mirror of synced 2025-01-30 20:11:49 +03:00
Code Issues Projects Releases Wiki Activity

Fix a little render glitch

Browse Source
This commit is contained in:
Benjamin Eberlei 2010-10-29 13:30:02 +02:00
parent 62aef84205
commit 3182f150c1
1 changed files with 7 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
manual/en/working-with-associations.txt
View File

@ -224,15 +224,13 @@ that has O(n) complexity using `array_search`, where n is the size of the map.
> for write operations that an inverse collection of a bidirectional one-to-many or many-to-many association is updated.
> This knowledge can often be used to improve performance by avoiding the loading of the inverse collection.
> **NOTE**
>
> You can also clear the contents of a whole collection using the `Collections::clear()` method. You
> should be aware that using this method can lead to a straight and optimized database delete or update call
> during the flush operation that is not aware of entities that have been re-added to the collection.
>
> Say you clear a collection of tags by calling `$post->getTags()->clear();` and then call
> `$post->getTags()->add($tag)`. This will not recognize tag being already added before and issue
> two database calls.
You can also clear the contents of a whole collection using the `Collections::clear()` method. You
should be aware that using this method can lead to a straight and optimized database delete or update call
during the flush operation that is not aware of entities that have been re-added to the collection.
Say you clear a collection of tags by calling `$post->getTags()->clear();` and then call
`$post->getTags()->add($tag)`. This will not recognize tag being already added before and issue
two database calls.
++ Association Management Methods