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<?php |
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/** |
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* ownCloud - CSV Import connector |
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* |
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* @author Nicolas Mora |
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* @copyright 2013-2014 Nicolas Mora [email protected] |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE |
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* License as published by the Free Software Foundation |
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* version 3 of the License |
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* |
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* This library 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 AFFERO GENERAL PUBLIC LICENSE for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public |
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* License along with this library. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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namespace OCA\Contacts\Connector; |
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use Sabre\VObject\Component; |
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use \SplFileObject as SplFileObject; |
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use Sabre\VObject\StringUtil; |
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/** |
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* @brief Implementation of the Import class for CSV format |
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* Doesn't really like csv that has fields with new lines in it, beware ! |
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*/ |
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class ImportCsvConnector extends ImportConnector { |
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/** |
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* @brief separates elements from the input stream according to the entry_separator value in config |
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* ignoring the first line if mentionned in the config |
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* @param $file the input file to import |
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* @param $limit the number of elements to return (-1 = no limit) |
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* @return array(array(data), array(titles)) |
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*/ |
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public function getElementsFromInput($file, $limit=-1) { |
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$linesAndTitles = $this->getSourceElementsFromFile($file, $limit); |
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$lines = $linesAndTitles[0]; |
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$titles = $linesAndTitles[1]; |
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$elements = array(); |
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foreach ($lines as $line) { |
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$elements[] = $this->convertElementToVCard($line, $titles); |
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} |
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return array_values($elements); |
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} |
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/** |
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* @brief parses the file in csv format |
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* @param $file the input file to import |
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* @param $limit the number of elements to return (-1 = no limit) |
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* @return array(array(data), array(titles)) |
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*/ |
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private function getSourceElementsFromFile($file, $limit=-1) { |
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if (file_put_contents($file, StringUtil::convertToUTF8(file_get_contents($file)))) { |
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$csv = new SplFileObject($file, 'r'); |
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$csv->setFlags(SplFileObject::READ_CSV); |
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$delimiter = ''; |
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if (isset($this->configContent->import_core->delimiter)) { |
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$delimiter = (string)$this->configContent->import_core->delimiter; |
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} else { |
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// Look for the delimiter in the first line, should be the most present character between ',', ';' and '\t' |
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$splFile = new SplFileObject($file); |
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$firstLine = $splFile->fgets(); |
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$nbComma = substr_count($firstLine, ','); |
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$nbSemicolon = substr_count($firstLine, ';'); |
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$nbTab = substr_count($firstLine, "\t"); |
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if ($nbComma > $nbSemicolon && $nbComma > $nbTab) { |
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// Comma it is |
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$delimiter = ','; |
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} else if ($nbSemicolon > $nbComma && $nbSemicolon > $nbTab) { |
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// Semicolon it is |
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$delimiter = ';'; |
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} else if ($nbTab > $nbComma && $nbTab > $nbSemicolon) { |
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// Tab it is |
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$delimiter = "\t"; |
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} else if ($nbTab == 0 && $nbComma == 0 && $nbSemicolon == 0) { |
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// We have a problem, no delimiter found |
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return array(array(), array()); |
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} |
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} |
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$csv->setCsvControl($delimiter, "\"", "\\"); |
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$ignoreFirstLine = (isset($this->configContent->import_core->ignore_first_line) |
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&& (((string)$this->configContent->import_core->ignore_first_line) == 'true') |
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|| ((string)$this->configContent->import_core->ignore_first_line) == '1'); |
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$titles = false; |
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$lines = array(); |
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$index = 0; |
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foreach($csv as $line) { |
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if (!($ignoreFirstLine && $index == 0) && count($line) > 1) { // Ignore first line |
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$lines[] = $line; |
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if (count($lines) == $limit) { |
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break; |
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} |
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} else if ($ignoreFirstLine && $index == 0) { |
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$titles = $line; |
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} |
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$index++; |
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} |
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return array($lines, $titles); |
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} else { |
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error_log("Error converting file to utf8"); |
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return array(array(), array()); |
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} |
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} |
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/** |
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* @brief converts a unique element into a owncloud VCard |
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* @param $element the element to convert |
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* @return VCard, all unconverted elements are stored in X-Unknown-Element parameters |
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*/ |
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public function convertElementToVCard($element, $title = null) { |
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$vcard = new \OCA\Contacts\VObject\VCard(); |
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$nbElt = count($element); |
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for ($i=0; $i < $nbElt; $i++) { |
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if ($element[$i] != '') { |
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//$importEntry = false; |
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// Look for the right import_entry |
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if (isset($this->configContent->import_core->base_parsing)) { |
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if (strcasecmp((string)$this->configContent->import_core->base_parsing, 'position') == 0) { |
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$importEntry = $this->getImportEntryFromPosition((String)$i); |
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} else if (strcasecmp((string)$this->configContent->import_core->base_parsing, 'name') == 0 && isset($title[$i])) { |
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$importEntry = $this->getImportEntryFromName($title[$i]); |
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} |
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} |
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if ($importEntry) { |
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// Create a new property and attach it to the vcard |
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$value = $element[$i]; |
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if (isset($importEntry['remove'])) { |
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$value = str_replace($importEntry['remove'], '', $element[$i]); |
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} |
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$values = array($value); |
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if (isset($importEntry['separator'])) { |
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$values = explode($importEntry['separator'], $value); |
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} |
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View Code Duplication |
foreach ($values as $oneValue) { |
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if (isset($importEntry->vcard_favourites)) { |
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foreach ($importEntry->vcard_favourites as $vcardFavourite) { |
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if (strcasecmp((string)$vcardFavourite, trim($oneValue)) == 0) { |
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$property = $vcard->createProperty("X-FAVOURITES", 'yes'); |
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$vcard->add($property); |
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} else { |
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$property = $this->getOrCreateVCardProperty($vcard, $importEntry->vcard_entry); |
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$this->updateProperty($property, $importEntry, trim($oneValue)); |
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} |
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} |
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} else { |
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$property = $this->getOrCreateVCardProperty($vcard, $importEntry->vcard_entry); |
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$this->updateProperty($property, $importEntry, trim($oneValue)); |
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} |
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} |
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} else if (isset($element[$i]) && isset($title[$i])) { |
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$property = $vcard->createProperty("X-Unknown-Element", StringUtil::convertToUTF8($element[$i])); |
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$property->add('TYPE', StringUtil::convertToUTF8($title[$i])); |
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$vcard->add($property); |
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} |
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} |
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} |
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$vcard->validate(\Sabre\VObject\Component\VCard::REPAIR); |
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return $vcard; |
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} |
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/** |
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* @brief gets the import entry corresponding to the position given in parameter |
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* @param string $position the position to look for in the connector |
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* @return int|false |
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*/ |
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private function getImportEntryFromPosition($position) { |
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$nbElt = $this->configContent->import_entry->count(); |
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for ($i=0; $i < $nbElt; $i++) { |
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View Code Duplication |
if ($this->configContent->import_entry[$i]['position'] == $position && $this->configContent->import_entry[$i]['enabled'] == 'true') { |
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return $this->configContent->import_entry[$i]; |
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} |
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} |
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return false; |
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} |
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/** |
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* @brief gets the import entry corresponding to the name given in parameter |
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* @param $name the parameter name to look for in the connector |
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* @return string|false |
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*/ |
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private function getImportEntryFromName($name) { |
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$nbElt = $this->configContent->import_entry->count(); |
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for ($i=0; $i < $nbElt; $i++) { |
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View Code Duplication |
if ($this->configContent->import_entry[$i]['name'] == StringUtil::convertToUTF8($name) && $this->configContent->import_entry[$i]['enabled'] == 'true') { |
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return $this->configContent->import_entry[$i]; |
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} |
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if (isset($this->configContent->import_entry[$i]->altname)) { |
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foreach ($this->configContent->import_entry[$i]->altname as $altname) { |
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if ($altname == StringUtil::convertToUTF8($name) && $this->configContent->import_entry[$i]['enabled'] == 'true') { |
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return $this->configContent->import_entry[$i]; |
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} |
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} |
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} |
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} |
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return false; |
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} |
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/** |
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* @brief returns the probability that the first element is a match for this format |
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* @param $file the file to examine |
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* @return 0 if not a valid csv file |
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* 1 - 0.5*(number of untranslated elements/total number of elements) |
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* The more the first element has untranslated elements, the more the result is close to 0.5 |
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*/ |
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public function getFormatMatch($file) { |
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// Examining the first element only |
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$partsAndTitle = $this->getSourceElementsFromFile($file, 1); |
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$parts = $partsAndTitle[0]; |
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$titles = $partsAndTitle[1]; |
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if (!$parts || ($parts && isset($this->configContent->import_core->expected_columns) |
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&& count($parts[0]) != (string)$this->configContent->import_core->expected_columns) |
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) { |
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// Doesn't look like a csv file |
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return 0; |
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} else { |
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$element = $this->convertElementToVCard($parts[0], $titles); |
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if ($element) { |
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$unknownElements = $element->select("X-Unknown-Element"); |
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return (1 - (0.5 * count($unknownElements)/count($parts[0]))); |
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} else { |
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return 0; |
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} |
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} |
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} |
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} |
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?> |
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