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POCakephp save multiple records in one model
 

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  1. POCakephp save multiple records in one model
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    <p>I have problem to save multiple records in a single table. This is my form:</p> <pre><code>&lt;?php echo $this-&gt;Form-&gt;create('Attendance');?&gt; &lt;table&gt; &lt;tr&gt; &lt;th&gt;Student&lt;/th&gt; &lt;th&gt;Attendance&lt;/th&gt; &lt;/tr&gt; &lt;?php foreach ($students as $key =&gt; $student): ?&gt; &lt;tr&gt; &lt;td&gt; &lt;?php echo $student['LectureParticipant']['name']; ?&gt; &lt;?php echo $this-&gt;Form-&gt;input('Attendance.'.$key.'.student_id', array('type'=&gt;'hidden', 'value'=&gt;$student['LectureParticipant']['student_id'])); ?&gt; &lt;?php echo $this-&gt;Form-&gt;input('Attendance.'.$key.'.lecture_id', array('type'=&gt;'hidden', 'value'=&gt;$student['LectureParticipant']['lecture_id'])); ?&gt; &lt;?php echo $this-&gt;Form-&gt;input('Attendance.'.$key.'.date', array('type'=&gt;'hidden', 'value'=&gt;date("Y-m-d"))); ?&gt; &lt;/td&gt; &lt;td&gt; &lt;?php echo $this-&gt;Form-&gt;input('Attendance.'.$key.'.participant', array( 'label' =&gt; false, 'div' =&gt; false, 'type' =&gt; 'select', 'options' =&gt; array( '1' =&gt; 'Present', '0' =&gt; 'Absent', ), )); ?&gt; &lt;/td&gt; &lt;/tr&gt; &lt;?php endforeach; ?&gt; &lt;/table&gt; &lt;center&gt; &lt;?php echo $this-&gt;Form-&gt;submit('Save', array('class'=&gt;'greenBtn', 'div'=&gt;false));?&gt; &lt;?php echo $this-&gt;Html-&gt;link("Cancel", array('action' =&gt; 'viewTeacherClass'), array( 'class' =&gt; 'button redBtn')); ?&gt; &lt;?php echo $this-&gt;Form-&gt;end();?&gt; &lt;/center&gt; </code></pre> <p>and this is my controller:</p> <pre><code>if ($this-&gt;request-&gt;is('post')) { if ($this-&gt;Attendance-&gt;saveAll($this-&gt;request-&gt;data)) { $this-&gt;Session-&gt;setFlash('Attendance has been saved.'); $this-&gt;redirect(array('controller'=&gt;'programmes', 'action' =&gt; 'viewTeacherClass')); } else { $this-&gt;Session-&gt;setFlash('Unable to add attendance.'); } } </code></pre> <p>This is my data structure:</p> <pre><code>array( 'Attendance' =&gt; array( (int) 0 =&gt; array( 'student_id' =&gt; '1', 'lecture_id' =&gt; '2', 'date' =&gt; '2013-08-02', 'participant' =&gt; '1' ), (int) 1 =&gt; array( 'student_id' =&gt; '2', 'lecture_id' =&gt; '2', 'date' =&gt; '2013-08-02', 'participant' =&gt; '1' ) ) ) </code></pre> <p>I got this warning:</p> <p><code>Warning (2): array_keys() expects parameter 1 to be array, null given [CORE\Cake\Model\Model.php, line 2045]</code></p> <p><code>Warning (4096): Argument 1 passed to Hash::numeric() must be an array, null given, called in C:\wamp\www\ibae\lib\Cake\Model\Model.php on line 2045 and defined [CORE\Cake\Utility\Hash.php, l</code></p> <p>I'm not sure what goes wrong here. I guess because of this warning, I cannot save all the data.</p>
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    1. COLook at the code in [`Model.php` on line 2045](https://github.com/cakephp/cakephp/blob/a643295e4c48681d26d775d6f50a395e194eaf04/lib/Cake/Model/Model.php#L2045), the `$data` argument is passed directly to `array_keys()`, so `$this->request->data` seems to be `null`.
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    2. COI already debug($this->request->data) and it is not null
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    3. COWell, if that is really the case, and the code you've posted is really the code where the error is triggered, then please check the code of `Model.php` in your specific CakePHP version (you should always mention the exact version number in your question), do some debugging (for example a `var_dump($data)` right before the `Model::saveAll()` in the controller, and inside of the `Model::saveAll()` method to check what the method actually receives) and if that doesn't get you on the track to fix the problem, then please update your answer with your debugging results.
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