Laravel，sync（） - 如何同步数组，并传递其他枢轴字段？ [英] Laravel, sync() - how to sync an array and also pass additional pivot fields?

问题描述

官方Laravel文档在 sync（）功能：

Official Laravel documentation has this on sync() function:

$user->roles()->sync( array( 1, 2, 3 ) );

您还可以将其他数据透视表值与给定的ID相关联：

You may also associate other pivot table values with the given IDs:

$user->roles()->sync( array( 1 => array( 'expires' => true ) ) );

在后一个示例中，只添加了一个枢轴列。我不明白的是，如果有多个行要同步，那么如何关联其他数据透视表记录？

In the latter example only a single pivot row is being added. What I don't understand is how can I associate other pivot table records if there are more than one rows to be synced?

提前感谢

推荐答案

为了同步多个模型以及自定义数据透视数据，您需要： / p>

In order to sync multiple models along with custom pivot data, you need this:

$user->roles()->sync( array( 
    1 => array( 'expires' => true ),
    2 => array( 'expires' => false ),
    ...
));

sync( array( 
    related_id => array( 'pivot_field' => value ),
    ...
));

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编辑

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edit

回答评论：

$speakers  = (array) Input::get('speakers'); // related ids
$pivotData = array_fill(0, count($speakers), ['is_speaker' => true]);
$syncData  = array_combine($speakers, $pivotData);

$user->roles()->sync($syncData);

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