245 lines
6.2 KiB
PHP
245 lines
6.2 KiB
PHP
<?php
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require_once("shoppingListConfig.php");
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class DBLink
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{
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static $sqlLink = null;
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public static function getDbLink()
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{
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if(DBLink::$sqlLink == null)
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{
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DBLink::$sqlLink = new mysqli(Configuration::$mysqlserver, Configuration::$mysqluser, Configuration::$mysqlpw, Configuration::$mysqldb, Configuration::$mysqlPort);
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// Verbindung überprüfen
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if (mysqli_connect_errno())
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{
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printf("Database connection error:%s\n", mysqli_connect_error());
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exit();
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}
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}
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return DBLink::$sqlLink;
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}
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}
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if(isset($_GET['command']) && $_GET['command'] == "printProductList")
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{
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displayProductList();
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exit(0);
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}
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echo "<html>
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<head>
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<title>Shopping list</title>
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<style type=\"text/css\">
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table
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{
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border-collapse:separate;
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border-spacing:10px 10px;
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}
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.smallButton
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{
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font-size:10px;;
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height:5000em;
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width:5000em;
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}
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</style>
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</head>
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<body>";
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$command = $_POST['command'];
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if(isset($command))
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{
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switch($command)
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{
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case "addToList":
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$productId = $_POST['productToAdd'];
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addToList($productId);
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break;
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case "removeFromList":
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$productId = $_POST['productToRemove'];
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removeFromList($productId);
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break;
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case "displayShoppingList":
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displayShoppingList();
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break;
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case "createNewShoppingList":
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createNewShoppingList();
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break;
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}
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}
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displayShoppingList();
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echo "</body></html>";
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mysqli_close(DBLink::getDbLink());
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function addToList($productId)
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{
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if($productId > 0)
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{
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$SQL_command;
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if(oneListExists())
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$SQL_command = "INSERT IGNORE INTO listEntries (listId, productId) VALUES ((SELECT id FROM `lists` ORDER BY creationTime DESC LIMIT 1), ".$productId.")";
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else
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$SQL_command = "INSERT IGNORE INTO listEntries (listId, productId) VALUES ((INSERT INTO `lists` (creationTime) VALUES (".round(microtime(true) * 1000).") RETURN @id, ".$productId."))";
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if (DBLink::getDbLink()->query($SQL_command))
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echo "Product added to list.<br>";
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else
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echo "Product could not be added to list.<br>";
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}
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else
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echo "Select a product.";
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}
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function removeFromList($productId)
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{
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if($productId > 0)
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{
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if(oneListExists())
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{
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$SQL_command = "DELETE FROM listEntries WHERE listId=(SELECT id FROM `lists` ORDER BY creationTime DESC LIMIT 1) AND productId=".$productId;
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if (DBLink::getDbLink()->query($SQL_command))
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echo "Product removed from list.<br>";
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else
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echo "Product could not be removed from list.<br>";
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}
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}
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else
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echo "Select a product.";
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}
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function oneListExists()
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{
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$SQL_command = "SELECT COUNT(id) as listAmount FROM lists";
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$mysqli_result = DBLink::getDbLink()->query($SQL_command);
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if ($row = mysqli_fetch_object($mysqli_result))
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{
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if($row->listAmount > 0)
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return true;
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}
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return false;
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}
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function displayShoppingList()
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{
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echo " <form action=\"".$_SERVER['PHP_SELF']."\" method=\"POST\" onSubmit=\"if(!confirm('Are you sure you want to create a new list?')){return false;}\">
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<input type=\"hidden\" id=\"command\" name=\"command\" value=\"createNewShoppingList\" />
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<input type=\"submit\" value=\"Create new list\" />
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</form>";
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echo " <form action=\"".$_SERVER['PHP_SELF']."\" method=\"POST\">
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<input type=\"hidden\" id=\"command\" name=\"command\" value=\"addToList\" />
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<select name=\"productToAdd\" id=\"productToAdd\">
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<option value=\"0\">Select product to add</option>
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";
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$SQL_command = "SELECT id, name FROM `products` ORDER BY name ASC";
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$mysqli_result = DBLink::getDbLink()->query($SQL_command);
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while ($row = mysqli_fetch_object($mysqli_result))
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{
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echo "<option value=\"".$row->id."\">".$row->name."</option>";
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}
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echo " </select>
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<input type=\"submit\" value=\"add\" />
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</form>";
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if(oneListExists())
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{
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$SQL_command = "SELECT * FROM lists ORDER BY creationTime DESC LIMIT 0,1";
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$mysqli_result = DBLink::getDbLink()->query($SQL_command);
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if ($row = mysqli_fetch_object($mysqli_result))
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{
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echo "List created on ".date("l, d.m.Y", ($row->creationTime)/1000)." at ".date("G:i:s", ($row->creationTime)/1000)."<br />";
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if(isset($row->comment) && strlen($row->comment) > 0)
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echo "<i>".$row->comment."</i><br />";
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echo "<br />";
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}
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$SQL_command = "SELECT * FROM listEntries INNER JOIN products ON listEntries.productId=products.id INNER JOIN storeTypes ON products.storeTypeId = storeTypes.id WHERE listEntries.listId=(SELECT id FROM `lists` ORDER BY creationTime DESC LIMIT 1) ORDER BY storeTypes.name, products.name ASC";
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$mysqli_result = DBLink::getDbLink()->query($SQL_command);
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$lastShop="";
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while ($row = mysqli_fetch_array($mysqli_result))
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{
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if(isset($lastShop) && $lastShop != "" && $row[7] != $lastShop)
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echo "</table>";
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if(!isset($lastShop) || $row[7] != $lastShop)
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{
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$lastShop = $row[7];
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echo $lastShop."<br>================";
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echo "<table border=\"0\">";
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}
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echo "<tr>
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<td style=\"vertical-align:top;\">".$row[3]."</td>
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<td style=\"vertical-align:top;\">
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<form action=\"".$_SERVER['PHP_SELF']."\" method=\"POST\">
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<input type=\"hidden\" id=\"command\" name=\"command\" value=\"removeFromList\" />
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<input type=\"hidden\" id=\"productToRemove\" name=\"productToRemove\" value=\"".$row[1]."\" />
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<input class=\"smallButton\" type=\"submit\" value=\"remove\" />
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</form>
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</td>
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</tr>";
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}
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echo "</table>";
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}
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else
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echo "No list exists, yet.";
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}
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function displayProductList()
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{
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$SQL_Befehl = "SELECT name, synonyms FROM products ORDER BY products.name ASC";
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$mysqli_result = DBLink::getDbLink()->query($SQL_Befehl);
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$lastShop="";
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while ($row = mysqli_fetch_array($mysqli_result))
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{
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if(is_null($row[1]))
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echo $row[0]."\n";
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else
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echo "(".str_replace(";", "|", $row[1])."|".$row[0]."):".$row[0]."\n";
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}
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}
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function createNewShoppingList()
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{
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$date = new DateTime();
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$SQL_command = "INSERT INTO lists (creationTime) VALUES (".($date->getTimestamp() * 1000).")";
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if (DBLink::getDbLink()->query($SQL_command))
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echo "New list has been created.<br>";
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else
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echo "Error creating new list.<br>";
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}
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?>
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