2020-08-06 18:51:56 +02:00
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<?php
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2020-08-07 10:14:09 +02:00
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namespace Importer;
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2020-08-06 18:51:56 +02:00
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use Filter;
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use League\Csv\Reader;
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2020-08-07 10:14:09 +02:00
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abstract class CSVImporter implements ImporterInterface
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2020-08-06 18:51:56 +02:00
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{
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protected $csv;
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protected $column_associations;
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protected $primary_key;
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public function __construct($file)
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{
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// Impostazione automatica per i caratteri di fine riga
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if (!ini_get('auto_detect_line_endings')) {
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ini_set('auto_detect_line_endings', '1');
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}
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// Gestione del file CSV
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$this->csv = Reader::createFromPath($file, 'r');
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$this->csv->setDelimiter(';');
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$this->column_associations = [];
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}
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public function getColumnAssociations()
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{
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return $this->column_associations;
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}
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public function setColumnAssociation($column_key, $field_key)
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{
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$this->column_associations[$column_key] = $this->getAvailableFields()[$field_key]['field'];
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}
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abstract public function getAvailableFields();
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2020-08-07 10:14:09 +02:00
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public function getHeader()
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{
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$first_row = $this->getRows(0, 1);
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return array_shift($first_row);
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}
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public function getRows($offset, $length)
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2020-08-06 18:51:56 +02:00
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{
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$rows = [];
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for ($i = 0; $i < $length; ++$i) {
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// Lettura di una singola riga alla volta
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$row = $this->csv->fetchOne($offset + $i);
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if (empty($row)) {
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break;
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}
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// Aggiunta all'insieme dei record
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$rows[] = Filter::parse($row);
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}
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return $rows;
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}
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2020-08-07 10:14:09 +02:00
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public function importRows($offset, $length)
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2020-08-06 18:51:56 +02:00
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{
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$associations = $this->getColumnAssociations();
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2020-08-07 10:14:09 +02:00
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$rows = $this->getRows($offset, $length);
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2020-08-06 18:51:56 +02:00
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foreach ($rows as $row) {
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// Interpretazione della riga come record
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$record = [];
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foreach ($row as $key => $value) {
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$field = isset($associations[$key]) ? $associations[$key] : null;
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if (!empty($field)) {
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$record[$field] = $value;
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}
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}
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// Importazione del record
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$this->import($record);
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}
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return count($rows);
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}
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abstract public function import($record);
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public function getPrimaryKey()
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{
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return $this->primary_key;
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}
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public function setPrimaryKey($field_key)
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{
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$this->primary_key = $this->getAvailableFields()[$field_key]['field'];
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}
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public static function createExample($filepath)
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{
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$content = static::getExample();
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$file = fopen($filepath, 'w');
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fprintf($file, chr(0xEF).chr(0xBB).chr(0xBF));
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foreach ($content as $row) {
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fputcsv($file, $row, ';');
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}
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fclose($file);
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}
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}
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