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Pre-process data before import

The example is simplified, without handling of errors for events like file open or write.

// load Magento libraries
include_once 'app/Mage.php';
// open original file for reading
$fs = fopen('var/urapidflow/import/source_file.csv', 'r');
// open file to be imported for writing
$fd = fopen('var/urapidflow/import/products.csv', 'w');
// retrieve column names
$fieldColumns = fgetcsv($fs);
$first = true;
// iterate through file
while ($r = fgetcsv($fs)) {
    // get a row as associated array
    $row = array_combine($fieldColumns, $r);
    // perform your data modifications here
    // change existing columns
    $row['price'] *= 1.2;
    // or add new columns, 
    // make sure that the new columns are always available
    // and order of columns is always the same
    $row['new_attribute'] = 'Static value';
    // output header
    if ($first) {
        fputcsv($fd, array_keys($row));
        $first = false;
    // write the product row
    fputcsv($fd, $row);
// close files
// run the profile, which should be associated with final import file
Mage::helper('urapidflow')->run("Your Import Profile");
urapidflow/data_preprocess.txt · by unirgy