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PO
primarykey
Id
13438591
data
AcceptedAnswerId
0
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0
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0
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CreationDate
2012-11-18T08:26:23.697
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0
LastActivityDate
2012-11-18T11:46:12.733
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2012-11-18T11:46:12.733
LastEditorUserId
1606150
OwnerUserId
1606150
ParentId
13433977
PostTypeId
2
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1
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0
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text
Body
<p>This is how i solved it:</p> <h2>My models</h2> <p>In my application each user has many tags(many to many realationship). It's called <a href="http://www.pui.ch/phred/archives/2005/04/tags-database-schemas.html" rel="nofollow">toxi</a> database schema. My user table is called 'users', tags table is called 'tags'. And intermediate table is called 'tag_user' that has 'tag_id' and 'user_id' columns.</p> <p>User model:</p> <pre><code>class User extends \Eloquent { public static $timestamps = false; public function tags() { return $this->has_many_and_belongs_to('Models\Tag'); } } </code></pre> <p>Tag model:</p> <pre><code>class Tag extends \Eloquent { public static $timestamps = false; } </code></pre> <h2>How i replaced <code>sync()</code> method</h2> <p>This is how i forced laravel to do <code>sync()</code> method using multiple insert:</p> <pre><code>//$currentUser is a model loaded from database //Like this: $currentUser = Auth::user(); $newLinks = array(); $idsToSync = array(); foreach ($tags as $tag) { array_push($idsToSync, $tag->id); } //$currentUser->tags()->sync($idsToSync); $currentIds = $currentUser->tags()->pivot()->lists('tag_id'); $idsToAttach = array_diff($idsToSync, $currentIds); foreach ($idsToAttach as $value) { $newLink = array( 'user_id' => $currentUser->id, 'tag_id' => $value ); $newLinks[] = $newLink; } if (count($newLinks) > 0) { \DB::table('tag_user')->insert($newLinks); } $idsToDetach = array_diff($currentIds, $idsToSync); if (count($idsToDetach) > 0) { $currentUser->tags()->detach($idsToDetach); } </code></pre> <p>This code does one multiple insert instead of many single ones.</p>
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1. POHow can i force laravel to do batch(multiple) insert in sync() method?
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1. POHow can i force laravel to do batch(multiple) insert in sync() method?
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