How do I use fixed fields in CakeDC's csvUpload behavior in Util plugin

Question

I am using the csvUpload behavior of the Utils plugin by CakeDC, on a CakePHP 2.2.1 install.

I have it working great it's processing a rather large csv successfully. However there are two fields in my table / Model that would be considered fixed, as they are based on ID's from from associated models that are not consistent. So I need to get these fixed values via variables which is easy enough.

So my question is, how do I use the fixed fields aspect of csvUpload? I have tried that following and many little variation, which obviously didn't work.

public function upload_csv($Id = null) {
    $unique_add = 69;
    if ( $this->request->is('POST') ) {
        $records_count = $this->Model->find( 'count' );
        try {
            $fixed = array('Model' => array('random_id' => $Id, 'unique_add' => $unique_add));
            $this->Model->importCSV($this->request->data['Model']['CsvFile']['tmp_name'], $fixed);
        } catch (Exception $e) {
            $import_errors = $this->Model->getImportErrors();
            $this->set( 'import_errors', $import_errors );
            $this->Session->setFlash( __('Error Importing') . ' ' . $this->request->data['Model']['CsvFile']['name'] . ', ' . __('column name mismatch.')  );
            $this->redirect( array('action'=>'import') );
        }

        $new_records_count = $this->Model->find( 'count' ) - $records_count;
        $this->Session->setFlash(__('Successfully imported') . ' ' . $new_records_count .  ' records from ' . $this->request->data['Model']['CsvFile']['name'] );
        $this->redirect(array('plugin'=>'usermgmt', 'controller'=>'users', 'action'=>'dashboard'));
    }
}

Any help would be greatly appreciated as I have only found 1 post concerning this behavior when I searching...

Answer 1

I made my custom method to achieve the same task. Define the following method in app\Plugin\Utils\Model\Behavior

public function getCSVData(Model &$Model, $file, $fixed = array())
{
    $settings = array(
              'delimiter' => ',',
              'enclosure' => '"',
              'hasHeader' => true
            );
    $this->setup($Model, $settings);
    $handle = new SplFileObject($file, 'rb');       
    $header = $this->_getHeader($Model, $handle);
    $db = $Model->getDataSource();
    $db->begin($Model);
    $saved = array();
    $data = array();
    $i = 0;
    while (($row = $this->_getCSVLine($Model, $handle)) !== false)
    {
        foreach ($header as $k => $col)
        {
            // get the data field from Model.field              
            $col = str_replace('.', '-', trim($col));
            if (strpos($col, '.') !== false)
            {
                list($model,$field) = explode('.', $col);
                $data[$i][$model][$field] = (isset($row[$k])) ? $row[$k] : '';
            }
            else
            {
                $col = str_replace(' ','_', $col);
                $data[$i][$Model->alias][$col] = (isset($row[$k])) ? $row[$k] : '';
            }
        }
        $is_valid_row = false;

        foreach($data[$i][$Model->alias] as $col => $value )
        {
            if(!empty($data[$i][$Model->alias][$col]))
            {
                $is_valid_row = true;                   
            }
        }
        if($is_valid_row == true)
        {
            $i++;
            $data = Set::merge($data, $fixed);  
        }
        else
        {
            unset($data[$i]);
        }
    }
    return $data;
}   

And you can use it using:

  $csv_data = $this->Model->getCSVData($this->request->data['Model']['CsvFile']['tmp_name'], $fixed);

Here $csv_data will contain an array of all of those records from the csv file which are not empty and with the fixed field in each record index.

Answer 2

So as I was telling Arun, I answered my own question and figured it out. I was looking to broad instead of really examining what was in front of me. I started running some debugging and figured it out.

First of all, $unique_add = 69 is seen as an int, duh. In order for it to be added to the csv it need to viewed as a string. So it simply becomes, $unique_add = '69'.

I couldn't enter the value of $Id directly into the fixed array. So I just had to perform a simple find to get the value I needed.

$needed_id = $this->Model->find('first', array(
            'condition'=>array('Model.id'=>$Id)
        )
    );

    $random_id = $needed_id['Model']['id'];

Hopefully this won't be needed to help anyone because hopefully no one else will make this silly mistake. But one plus... Now there's actually more than one post on the internet documenting the use of fixed fields in the CakeDC Utils plugin.