155 lines
3.8 KiB
PHP
155 lines
3.8 KiB
PHP
<?php
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/*
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* OpenSTAManager: il software gestionale open source per l'assistenza tecnica e la fatturazione
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* Copyright (C) DevCode s.r.l.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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namespace Importer;
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use League\Csv\Reader;
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/**
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* Classe dedicata alla gestione dell'importazione da file CSV.
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*
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* @since 2.4.17
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*/
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abstract class CSVImporter implements ImporterInterface
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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('default_socket_timeout')) {
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ini_set('default_socket_timeout', '0');
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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 init()
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{
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}
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public function complete()
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{
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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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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, $length)
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{
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$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 $rows;
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}
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public function importRows($offset, $length)
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{
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$rows = $this->getRows($offset, $length);
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foreach ($rows as $row) {
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// Interpretazione della riga come record
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$record = $this->getRecord($row);
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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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* Interpreta una riga del CSV secondo i campi impostati dinamicamente.
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*
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* @return array
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*/
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protected function getRecord($row)
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{
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$associations = $this->getColumnAssociations();
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// Interpretazione della riga come record
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$record = [];
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foreach ($row as $key => $value) {
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$field = $associations[$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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return $record;
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}
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}
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