' : '<='; switch ($type) { case SORT_NUMERIC: $compare_function = 'return strip_tags($a['.$column.']) '.$compare_operator.' strip_tags($b['.$column.']);'; break; case SORT_IMAGE: $compare_function = 'return api_strnatcmp(api_strtolower(strip_tags($a['.$column.'], "")), api_strtolower(strip_tags($b['.$column.'], ""))) '.$compare_operator.' 0;'; break; case SORT_DATE: $compare_function = 'return strtotime(strip_tags($a['.$column.'])) '.$compare_operator.' strtotime(strip_tags($b['.$column.']));'; break; case SORT_STRING: default: $compare_function = 'return api_strnatcmp(api_strtolower(strip_tags($a['.$column.'])), api_strtolower(strip_tags($b['.$column.']))) '.$compare_operator.' 0;'; break; } // Sort the content usort($data, create_function('$a, $b', $compare_function)); return $data; } /** * Sorts 2-dimensional table. It is possile changing the columns that will be shown and the way that the columns are to be sorted. * @param array $data The data to be sorted. * @param int $column The column on which the data should be sorted (default = 0) * @param string $direction The direction to sort (SORT_ASC (default) orSORT_DESC) * @param array $column_show The columns that we will show in the table i.e: $column_show = array('1','0','1') we will show the 1st and the 3th column. * @param array $column_order Changes how the columns will be sorted ie. $column_order = array('0','3','2','3') The column [1] will be sorted like the column [3] * @param constant $type How should data be sorted (SORT_REGULAR, SORT_NUMERIC, SORT_STRING, SORT_DATE, SORT_IMAGE) * @return array The sorted dataset * @author bart.mollet@hogent.be */ public static function sort_table_config( $data, $column = 0, $direction = SORT_ASC, $column_show = null, $column_order = null, $type = SORT_REGULAR, $doc_filter = false ) { if (!is_array($data) || empty($data)) { return array(); } if ($column != strval(intval($column))) { // Probably an attack return $data; } if (!in_array($direction, array(SORT_ASC, SORT_DESC))) { // Probably an attack return $data; } // Change columns sort // Here we say that the real way of how the columns are going to be order is manage by the $column_order array if (is_array($column_order)) { $column = isset($column_order[$column]) ? $column_order[$column] : $column; } if ($type == SORT_REGULAR) { if (self::is_image_column($data, $column)) { $type = SORT_IMAGE; } elseif (self::is_date_column($data, $column)) { $type = SORT_DATE; } elseif (self::is_numeric_column($data, $column)) { $type = SORT_NUMERIC; } else { $type = SORT_STRING; } } //This fixes only works in the document tool when ordering by name if ($doc_filter && in_array($type, array(SORT_STRING))) { $folder_to_sort = array(); $new_data = array(); if (!empty($data)) { foreach ($data as $document) { if ($document['type'] == 'folder') { $docs_to_sort[$document['id']] = api_strtolower($document['name']); } else { $folder_to_sort[$document['id']] = api_strtolower($document['name']); } $new_data[$document['id']] = $document; } if ($direction == SORT_ASC) { if (!empty($docs_to_sort)) { api_natsort($docs_to_sort); } if (!empty($folder_to_sort)) { api_natsort($folder_to_sort); } } else { if (!empty($docs_to_sort)) { api_natrsort($docs_to_sort); } if (!empty($folder_to_sort)) { api_natrsort($folder_to_sort); } } $new_data_order = array(); if (!empty($docs_to_sort)) { foreach ($docs_to_sort as $id => $document) { if (isset($new_data[$id])) { $new_data_order[] = $new_data[$id]; } } } if (!empty($folder_to_sort)) { foreach ($folder_to_sort as $id => $document) { if (isset($new_data[$id])) { $new_data_order[] = $new_data[$id]; } } } $data = $new_data_order; } } else { $compare_operator = $direction == SORT_ASC ? '>' : '<='; switch ($type) { case SORT_NUMERIC: $compare_function = 'return strip_tags($a['.$column.']) '.$compare_operator.' strip_tags($b['.$column.']);'; break; case SORT_IMAGE: $compare_function = 'return api_strnatcmp(api_strtolower(strip_tags($a['.$column.'], "")), api_strtolower(strip_tags($b['.$column.'], ""))) '.$compare_operator.' 0;'; break; case SORT_DATE: $compare_function = 'return strtotime(strip_tags($a['.$column.'])) '.$compare_operator.' strtotime(strip_tags($b['.$column.']));'; break; case SORT_STRING: default: $compare_function = 'return api_strnatcmp(api_strtolower(strip_tags($a['.$column.'])), api_strtolower(strip_tags($b['.$column.']))) '.$compare_operator.' 0;'; break; } // Sort the content usort($data, create_function('$a, $b', $compare_function)); } if (is_array($column_show) && !empty($column_show)) { // We show only the columns data that were set up on the $column_show array $new_order_data = array(); $count_data = count($data); $count_column_show = count($column_show); for ($j = 0; $j < $count_data; $j++) { $k = 0; for ($i = 0; $i < $count_column_show; $i++) { if ($column_show[$i]) { $new_order_data[$j][$k] = $data[$j][$i]; } $k++; } } // Replace the multi-arrays $data = $new_order_data; } return $data; } /** * Checks whether a column of a 2D-array contains only numeric values * @param array $data The data-array * @param int $column The index of the column to check * @return bool TRUE if column contains only dates, FALSE otherwise * @todo Take locale into account (eg decimal point or comma ?) * @author bart.mollet@hogent.be */ private static function is_numeric_column(& $data, $column) { $is_numeric = true; foreach ($data as $index => & $row) { $is_numeric &= is_numeric(strip_tags($row[$column])); if (!$is_numeric) { break; } } return $is_numeric; } /** * Checks whether a column of a 2D-array contains only dates (GNU date syntax) * @param array $data The data-array * @param int $column The index of the column to check * @return bool TRUE if column contains only dates, FALSE otherwise * @author bart.mollet@hogent.be */ private static function is_date_column(& $data, $column) { $is_date = true; foreach ($data as $index => & $row) { if (strlen(strip_tags($row[$column])) != 0) { $check_date = strtotime(strip_tags($row[$column])); // strtotime Returns a timestamp on success, FALSE otherwise. // Previous to PHP 5.1.0, this function would return -1 on failure. $is_date &= ($check_date != -1 && $check_date); } else { $is_date &= false; } if (!$is_date) { break; } } return $is_date; } /** * Checks whether a column of a 2D-array contains only images () * @param array $data The data-array * @param int $column The index of the column to check * @return bool TRUE if column contains only images, FALSE otherwise * @author bart.mollet@hogent.be */ private static function is_image_column(& $data, $column) { $is_image = true; foreach ($data as $index => & $row) { $is_image &= strlen(trim(strip_tags($row[$column], ''))) > 0; // at least one img-tag $is_image &= strlen(trim(strip_tags($row[$column]))) == 0; // and no text outside attribute-values if (!$is_image) { break; } } return $is_image; } }