194 lines
6.6 KiB
PHP
194 lines
6.6 KiB
PHP
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<?php
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require_once (__DIR__. '/../dbutils.php');
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class Sorter {
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var $dbutils;
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function __construct() {
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$this->dbutils = new DbUtils();
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}
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public function getMaxprodSortOfType($pdo,$typeid) {
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$sql = "SELECT MAX(sorting) as maxsort FROM %products% WHERE removed is null AND category=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($typeid));
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$el = $stmt->fetchObject();
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return(intval($el->maxsort));
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}
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private function getTypeidOfProd($pdo,$prodid) {
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$sql = "SELECT category from %products% WHERE id=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($prodid));
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$el = $stmt->fetchObject();
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$typeid = $el->category;
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return $typeid;
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}
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public function setMaxSortingForProdId($pdo,$id) {
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$typeid = $this->getTypeidOfProd($pdo, $id);
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$maxsorting = ($this->getMaxprodSortOfType($pdo, $typeid) + 1);
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$sql = "UPDATE %products% SET sorting=? WHERE id=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($maxsorting,$id));
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}
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private function getSortingOfProduct($pdo,$prodid) {
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$sql = "SELECT sorting FROM %products% WHERE id=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($prodid));
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$el = $stmt->fetchObject();
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return (intval($el->sorting));
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}
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public function sortup($pdo,$prodid) {
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try {
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// which sorting has the comment to delete?
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$sorting = $this->getSortingOfProduct($pdo, $prodid);
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if ($sorting < 0) {
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echo json_encode(array("status" => "ERROR", "code" => ERROR_GENERAL_DB_NOT_READABLE, "msg" => ERROR_GENERAL_DB_NOT_READABLE_MSG));
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return;
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}
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if ($sorting == 0) {
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// finished
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return;
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}
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$typeid = $this->getTypeidOfProd($pdo, $prodid);
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// get comment before
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$sql = "SELECT id FROM %products% WHERE sorting=? AND category=? AND removed is null";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($sorting - 1,$typeid));
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$row = $stmt->fetchObject();
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$previousId = $row->id;
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// change these two prods in their ordering
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$sql = "UPDATE %products% SET sorting=? WHERE id=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($sorting,$previousId));
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$sql = "UPDATE %products% SET sorting=? WHERE id=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($sorting-1,$prodid));
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}
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catch (PDOException $e) {
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return;
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}
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}
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public function sortdown($pdo,$prodid) {
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try {
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// which sorting has the comment to delete?
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$sorting = $this->getSortingOfProduct($pdo, $prodid);
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if ($sorting < 0) {
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echo json_encode(array("status" => "ERROR", "code" => ERROR_GENERAL_DB_NOT_READABLE, "msg" => ERROR_GENERAL_DB_NOT_READABLE_MSG));
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return;
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}
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// is it at end of list?
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$typeid = intval($this->getTypeidOfProd($pdo, $prodid));
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$maxSorting = $this->getMaxprodSortOfType($pdo, $typeid);
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if (($maxSorting == 0) || ($maxSorting == $sorting)) {
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// finished
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return;
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}
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// get prod afterwards
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$sql = "SELECT id FROM %products% WHERE sorting=? AND category=? AND removed is null";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($sorting + 1,$typeid));
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$row = $stmt->fetchObject();
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$nextId = $row->id;
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// change these two prods in their ordering
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$sql = "UPDATE %products% SET sorting=? WHERE id=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($sorting,$nextId));
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$sql = "UPDATE %products% SET sorting=? WHERE id=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($sorting+1,$prodid));
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}
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catch (PDOException $e) {
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echo json_encode(array("status" => "ERROR", "code" => ERROR_GENERAL_DB_NOT_READABLE, "msg" => ERROR_GENERAL_DB_NOT_READABLE_MSG));
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}
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}
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public function delproduct($pdo,$prodid) {
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try {
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// which sorting has the prod to delete?
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$sorting = $this->getSortingOfProduct($pdo, $prodid);
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$typeid = intval($this->getTypeidOfProd($pdo, $prodid));
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if ($sorting < 0) {
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echo json_encode(array("status" => "ERROR", "code" => ERROR_GENERAL_DB_NOT_READABLE, "msg" => ERROR_GENERAL_DB_NOT_READABLE_MSG));
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return;
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}
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// delete the prod
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$sql = "UPDATE %products% SET removed=?,sorting=? WHERE id=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array(1,null,$prodid));
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// TODO: HIST!!!
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// subtract all sortings by one higher then the deleted sorting index
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$sql = "SELECT id,sorting FROM %products% WHERE sorting>? AND removed is null AND category=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($sorting,$typeid));
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$result = $stmt->fetchAll();
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foreach($result as $row) {
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$theId = $row['id'];
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$theSort = intval($row['sorting'])-1;
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$sql = "UPDATE %products% SET sorting=? WHERE id=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($theSort,$theId));
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}
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}
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catch (PDOException $e) {
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echo json_encode(array("status" => "ERROR", "code" => ERROR_GENERAL_DB_NOT_READABLE, "msg" => ERROR_GENERAL_DB_NOT_READABLE_MSG));
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}
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}
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public function resortAfterProduct($pdo,$prodid) {
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try {
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// which sorting has the prod to delete?
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$sorting = $this->getSortingOfProduct($pdo, $prodid);
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$typeid = intval($this->getTypeidOfProd($pdo, $prodid));
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if ($sorting < 0) {
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echo json_encode(array("status" => "ERROR", "code" => ERROR_GENERAL_DB_NOT_READABLE, "msg" => ERROR_GENERAL_DB_NOT_READABLE_MSG));
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return;
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}
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// subtract all sortings by one higher then the deleted sorting index
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$sql = "SELECT id,sorting FROM %products% WHERE sorting>? AND removed is null AND category=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($sorting,$typeid));
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$result = $stmt->fetchAll();
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foreach($result as $row) {
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$theId = $row['id'];
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$theSort = intval($row['sorting'])-1;
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$sql = "UPDATE %products% SET sorting=? WHERE id=?";
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$stmt = $pdo->prepare($this->dbutils->resolveTablenamesInSqlString($sql));
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$stmt->execute(array($theSort,$theId));
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}
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}
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catch (PDOException $e) {
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echo json_encode(array("status" => "ERROR", "code" => ERROR_GENERAL_DB_NOT_READABLE, "msg" => ERROR_GENERAL_DB_NOT_READABLE_MSG));
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}
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}
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}
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?>
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