ShoppingList/phpInterface/shoppingList.php

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PHP
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<?php
require_once("shoppingListConfig.php");
$justCreatedProductId;
class DBLink
{
static $sqlLink = null;
public static function getDbLink()
{
if(DBLink::$sqlLink == null)
{
DBLink::$sqlLink = new mysqli(Configuration::$mysqlserver, Configuration::$mysqluser, Configuration::$mysqlpw, Configuration::$mysqldb, Configuration::$mysqlPort);
// Verbindung überprüfen
if (mysqli_connect_errno())
{
printf("Database connection error:%s\n", mysqli_connect_error());
exit();
}
}
return DBLink::$sqlLink;
}
}
if(isset($_GET['command']))
{
if($_GET['command'] == "printProductList" || $_GET['command'] == "printRhasspyProductList")
{
displayProductList();
exit(0);
}
else if($_GET['command'] == "printUnitList")
{
displayUnitList();
exit(0);
}
}
?>
<html>
<head>
<title>Shopping list</title>
<style type="text/css">
body
{
font-family: Arial, Geneva, Helvetica, sans-serif;
}
table
{
border-collapse:separate;
border-spacing:10px 10px;
}
.smallButton
{
font-size:10px;;
height:5000em;
width:5000em;
}
</style>
<script language="javascript" type="text/javascript">
function checkCreateProduct()
{
var productToCreate = document.forms["createProductForm"]["productToCreateName"].value;
if (productToCreate == "")
{
alert("Product name must be filled out");
return false;
}
var storeTypeId = document.forms["createProductForm"]["storeType"].value;
if (storeTypeId == "" || storeTypeId == "0")
{
alert("Store type must be selected");
return false;
}
return true;
}
</script>
</head>
<body>
<?php
$command = $_POST['command'];
$listId;
if(isset($command))
{
switch($command)
{
case "addToList":
$productId = $_POST['productToAdd'];
$amount = $_POST['amountToAdd'];
$unitId = $_POST['unitToAdd'];
addToList($productId, $amount, $unitId);
break;
case "removeFromList":
$productId = $_POST['productToRemove'];
$listId = $_POST['listId'];
$amount = $_POST['productAmountToRemove'];
$unit = $_POST['productUnitToRemove'];
removeFromList($productId, $listId, $amount, $unit);
break;
case "displayShoppingList":
displayShoppingList();
break;
case "createNewShoppingList":
createNewShoppingList();
break;
case "createProduct":
$productNames = $_POST['productToCreateName'];
$storeTypeId = $_POST['storeType'];
$rc = createProduct($productNames, $storeTypeId);
if($rc > 0)
$justCreatedProductId = $rc;
break;
case "oldList":
$listId = $_POST['oldListId'];
$subCommand = $_POST['bSubmit'];
if($subCommand == "remove")
{
removeShoppingList($listId);
$listId = null;
}
break;
case "trainRhasspy":
echo "Triggering training in Rhasspy has not been implemented, yet.";
break;
}
}
displayShoppingList($listId, $justCreatedProductId);
showDataMaintenance();
echo "</body></html>";
mysqli_close(DBLink::getDbLink());
function createList()
{
$SQL_command = "INSERT INTO `lists` (creationTime) VALUES (".round(microtime(true) * 1000).")";
if (DBLink::getDbLink()->query($SQL_command))
{
echo "List created.<br>";
return true;
}
return false;
}
function addToList($productId, $amount, $unitId)
{
if($productId > 0 && $amount != 0 && isset($unitId) && strlen($unitId) > 0)
{
if(!oneListExists())
createList();
if(!entryCombinationExists($productId, $unitId))
{
$SQL_command = "INSERT IGNORE INTO listEntries (listId, productId, amount, unit) VALUES ((SELECT id FROM `lists` ORDER BY creationTime DESC LIMIT 1), ".$productId.", ".$amount.", ".$unitId.")";
if (DBLink::getDbLink()->query($SQL_command))
echo "Product added to list.<br>";
else
echo "Product could not be added to list.<br>";
}
else
{
/*
update command that adds the amount to the already existing amount
if amount is negative -> subtract from existing amount. if resulting amount <= 0 ->
*/
$SQL_command = "SELECT amount FROM listEntries WHERE listId=(SELECT id FROM `lists` ORDER BY creationTime DESC LIMIT 1) AND productId=".$productId." AND unit=".$unitId;
$mysqli_result = DBLink::getDbLink()->query($SQL_command);
if ($row = mysqli_fetch_object($mysqli_result))
{
if($row->amount + $amount > 0)
{
$SQL_command = "UPDATE listEntries set amount=".($row->amount + $amount)." WHERE listId=(SELECT id FROM `lists` ORDER BY creationTime DESC LIMIT 1) AND productId=".$productId." AND unit=".$unitId;
if (DBLink::getDbLink()->query($SQL_command))
echo "Product added to existing entry on list.<br>";
else
echo "Product could not be added to existing entry on list.<br>";
}
else
{
$SQL_command = "DELETE FROM listEntries WHERE listId=(SELECT id FROM `lists` ORDER BY creationTime DESC LIMIT 1) AND productId=".$productId." AND unit=".$unitId;
if (DBLink::getDbLink()->query($SQL_command))
echo "Product removed from list as too many pieces of this item have been removed.<br>";
else
echo "Product could not be removed from list (too many pieces of this itme have been removed).<br>";
}
}
}
}
else
echo "Specifiy product, amount and unit.";
}
function removeFromList($productId, $listId, $amount, $unitId)
{
if($productId > 0 && $amount != null && $unitId > 0)
{
if(oneListExists())
{
$SQL_command = "DELETE FROM listEntries WHERE listId=".$listId." AND productId=".$productId." AND amount=".$amount." AND unit=".$unitId;
if (DBLink::getDbLink()->query($SQL_command))
echo "Product removed from list.<br>";
else
echo "Product could not be removed from list.<br>";
}
}
else
echo "Select a product.";
}
function entryCombinationExists($productId, $unitId)
{
$SQL_command = "SELECT COUNT(listId) as entryAmount FROM listEntries WHERE listId=(SELECT id FROM `lists` ORDER BY creationTime DESC LIMIT 1) AND productId=".$productId." AND unit=".$unitId;
$mysqli_result = DBLink::getDbLink()->query($SQL_command);
if ($row = mysqli_fetch_object($mysqli_result))
{
if($row->entryAmount > 0)
return true;
}
return false;
}
function oneListExists()
{
$SQL_command = "SELECT COUNT(id) as listAmount FROM lists";
$mysqli_result = DBLink::getDbLink()->query($SQL_command);
if ($row = mysqli_fetch_object($mysqli_result))
{
if($row->listAmount > 0)
return true;
}
return false;
}
function twoListsExist()
{
$SQL_command = "SELECT COUNT(id) as listAmount FROM lists";
$mysqli_result = DBLink::getDbLink()->query($SQL_command);
if ($row = mysqli_fetch_object($mysqli_result))
{
if($row->listAmount > 1)
return true;
}
return false;
}
function displayShoppingList($listId, $justCreatedProductId)
{
echo " <h2>Shopping list</h2>
<form action=\"".$_SERVER['PHP_SELF']."\" method=\"POST\">
<input type=\"hidden\" id=\"command\" name=\"command\" value=\"addToList\" />
<select name=\"productToAdd\" id=\"productToAdd\">
<option value=\"0\">Select product to add</option>
";
$SQL_command = "SELECT id, name FROM `products` ORDER BY name ASC";
$mysqli_result = DBLink::getDbLink()->query($SQL_command);
while ($row = mysqli_fetch_object($mysqli_result))
{
$currentId = (int)$row->id;
if(isset($justCreatedProductId) && $justCreatedProductId === $currentId)
echo "<option value=\"".$row->id."\" selected>".$row->name."</option>";
else
echo "<option value=\"".$row->id."\">".$row->name."</option>";
}
echo " </select>
<input type=\"number\" step=\"any\" id=\"amountToAdd\" name=\"amountToAdd\" value=\"1.0\" />
<select name=\"unitToAdd\" id=\"unitToAdd\">
<option value=\"0\">Select unit to add</option>
";
$SQL_command = "SELECT * FROM `units` ORDER BY name ASC";
$mysqli_result = DBLink::getDbLink()->query($SQL_command);
while ($row = mysqli_fetch_object($mysqli_result))
{
$currentId = (int)$row->id;
$unitArray = explode(";", $row->name);
if($row->isDefault == 1 || (isset($justCreatedUnitId) && $justCreatedUnitId === $currentId))
echo "<option value=\"".$row->id."\" selected>".$unitArray[0]."</option>";
else
echo "<option value=\"".$row->id."\">".$unitArray[0]."</option>";
}
echo " </select>
<input type=\"submit\" value=\"add\" />
</form>";
if(oneListExists())
{
$list_SQL_command;
if(isset($listId))
{
$list_SQL_command = "SELECT * FROM lists WHERE id=".$listId;
}
else
{
$list_SQL_command = "SELECT * FROM lists ORDER BY creationTime DESC LIMIT 0,1";
$SQL_command_listId = "SELECT id FROM lists ORDER BY creationTime DESC LIMIT 0,1";
$mysqli_result = DBLink::getDbLink()->query($SQL_command_listId);
if ($row = mysqli_fetch_object($mysqli_result))
$listId = $row->id;
}
$mysqli_result = DBLink::getDbLink()->query($list_SQL_command);
if ($row = mysqli_fetch_object($mysqli_result))
{
echo "List created on ".date("l, d.m.Y", ($row->creationTime)/1000)." at ".date("G:i:s", ($row->creationTime)/1000)."<br />";
if(isset($row->comment) && strlen($row->comment) > 0)
echo "<i>".$row->comment."</i><br />";
echo "<br />";
}
$SQL_command = "SELECT * FROM listEntries
INNER JOIN products ON listEntries.productId=products.id
INNER JOIN storeTypes ON products.storeTypeId = storeTypes.id
INNER JOIN units ON units.id = listEntries.unit
WHERE listEntries.listId=".$listId." ORDER BY storeTypes.name, products.name ASC";
$mysqli_result = DBLink::getDbLink()->query($SQL_command);
$lastShop="";
$found = false;
while ($row = mysqli_fetch_array($mysqli_result))
{
if(!$found)
$found = true;
if(isset($lastShop) && $lastShop != "" && $row[9] != $lastShop)
echo "</table>";
if(!isset($lastShop) || $row[9] != $lastShop)
{
$lastShop = $row[9];
echo $lastShop."<br>================";
echo "<table border=\"0\">";
}
echo "<tr>";
if($row[14] == 1)
echo "<td style=\"vertical-align:top;\" colspan=\"3\">".$row[5]."</td>";
else
echo "
<td style=\"vertical-align:top;\">".$row[2]."</td>
<td style=\"vertical-align:top;\">".$row[12]."</td>
<td style=\"vertical-align:top;\">".$row[5]."</td>";
echo "
<td style=\"vertical-align:top;\">
<form action=\"".$_SERVER['PHP_SELF']."\" method=\"POST\">
<input type=\"hidden\" id=\"command\" name=\"command\" value=\"removeFromList\" />
<input type=\"hidden\" id=\"listId\" name=\"listId\" value=\"".$listId."\" />
<input type=\"hidden\" id=\"productToRemove\" name=\"productToRemove\" value=\"".$row[1]."\" />
<input type=\"hidden\" id=\"productAmountToRemove\" name=\"productAmountToRemove\" value=\"".$row[2]."\" />
<input type=\"hidden\" id=\"productUnitToRemove\" name=\"productUnitToRemove\" value=\"".$row[10]."\" />
<input class=\"smallButton\" type=\"submit\" value=\"remove\" />
</form>
</td>
</tr>";
}
if($found)
echo "</table>";
else
echo "<i>No entries in this list, yet.</i>";
}
else
echo "<i>No list exists, yet.</i>";
}
function showDataMaintenance()
{
echo "<hr />";
echo " <h2>Data maintenance</h2>
<h3>Create new list</h3>
<form action=\"".$_SERVER['PHP_SELF']."\" method=\"POST\" onSubmit=\"if(!confirm('Are you sure you want to create a new list?')){return false;}\">
<input type=\"hidden\" id=\"command\" name=\"command\" value=\"createNewShoppingList\" />
<input type=\"submit\" value=\"Create new list\" />
</form>
<h3>Create new product</h3>
<form action=\"".$_SERVER['PHP_SELF']."\" method=\"POST\" onSubmit=\"return checkCreateProduct()\" id=\"createProductForm\">
<input type=\"hidden\" id=\"command\" name=\"command\" value=\"createProduct\" />
<input type=\"text\" id=\"productToCreateName\" name=\"productToCreateName\" />
<select name=\"storeType\" id=\"storeType\">
<option value=\"0\">Select store type</option>
";
$SQL_command = "SELECT id, name FROM storeTypes ORDER BY name ASC";
$mysqli_result = DBLink::getDbLink()->query($SQL_command);
while ($row = mysqli_fetch_object($mysqli_result))
{
echo "<option value=\"".$row->id."\">".$row->name."</option>";
}
echo " </select>
<input type=\"submit\" value=\"Create new product\" />
</form>
<font size=\"2\">You can enter synonyms. Separate all terms with semikolons.</font>";
if(twoListsExist())
{
$SQL_command = "SELECT * FROM lists ORDER BY creationTime DESC";
$mysqli_result = DBLink::getDbLink()->query($SQL_command);
echo "<h3>Show specific list</h3>";
echo "<form action=\"".$_SERVER['PHP_SELF']."\" method=\"POST\" id=\"oldListForm\">
<input type=\"hidden\" id=\"command\" name=\"command\" value=\"oldList\" />
<select name=\"oldListId\" id=\"oldListId\">";
while ($row = mysqli_fetch_object($mysqli_result))
{
echo "<option value=\"".$row->id."\">List created on ".date("l, d.m.Y", ($row->creationTime)/1000)." at ".date("G:i:s", ($row->creationTime)/1000);
if(isset($row->comment) && strlen($row->comment) > 0)
echo "<i>(".$row->comment.")</i>";
echo "</option>";
}
echo "
</select>
<input type=\"submit\" name=\"bSubmit\" value=\"show\" />
<input type=\"submit\" name=\"bSubmit\" value=\"remove\" onClick=\"if(!confirm('Are you sure you want to delete that list?')){return false;}\"/>
</form>";
}
echo " <h3>Train Rhasspy</h3>
<form action=\"".$_SERVER['PHP_SELF']."\" method=\"POST\">
<input type=\"hidden\" id=\"command\" name=\"command\" value=\"trainRhasspy\" />
<input type=\"submit\" value=\"Train Rhasspy\" />
</form>";
}
function displayProductList()
{
$SQL_Befehl = "SELECT name, synonyms FROM products ORDER BY products.name ASC";
$mysqli_result = DBLink::getDbLink()->query($SQL_Befehl);
$lastShop="";
while ($row = mysqli_fetch_array($mysqli_result))
{
if(is_null($row[1]))
echo $row[0]."\n";
else
echo "(".str_replace(";", "|", $row[1])."|".$row[0]."):".$row[0]."\n";
}
}
function displayUnitList()
{
$SQL_Befehl = "SELECT name FROM units ORDER BY name ASC";
$mysqli_result = DBLink::getDbLink()->query($SQL_Befehl);
$lastShop="";
while ($row = mysqli_fetch_object($mysqli_result))
{
$unitArray = explode(";", $row->name);
if(count($unitArray) == 1)
echo $unitArray[0]."\n";
else
{
$tbp = "";
for($i=1; $i<count($unitArray); $i++)
$tbp .= $unitArray[$i]."|";
$tbp = trim($tbp, "|");
echo "(".$tbp."):".$unitArray[0]."\n";
}
}
}
function createNewShoppingList()
{
$date = new DateTime();
$SQL_command = "INSERT INTO lists (creationTime) VALUES (".($date->getTimestamp() * 1000).")";
if (DBLink::getDbLink()->query($SQL_command))
echo "New list has been created.<br>";
else
echo "Error creating new list.<br>";
}
function removeShoppingList($listId)
{
$date = new DateTime();
$SQL_command = "DELETE FROM lists WHERE id=".$listId;
if (DBLink::getDbLink()->query($SQL_command))
echo "List has been deleted.<br>";
else
echo "Error deleting list.<br>";
}
function createProduct($productNames, $storeTypeId)
{
$date = new DateTime();
$SQL_command;
if(strpos($productNames, ";") !== false)
{
$terms = explode(";", $productNames);
$mainName = $terms[0];
$syns = "";
for($i=1; $i<count($terms); $i++)
{
$currentWord = trim($terms[$i]);
if(strlen($currentWord) > 0)
$syns .= ";".$currentWord;
}
$syns = ltrim($syns, ';');
}
if(strlen($syns) > 0)
$SQL_command = "INSERT INTO products (name, synonyms, storeTypeId) VALUES (\"".$mainName."\", \"".$syns."\",".$storeTypeId.")";
else
$SQL_command = "INSERT INTO products (name, storeTypeId) VALUES (\"".$productNames."\", ".$storeTypeId.")";
if (DBLink::getDbLink()->query($SQL_command))
{
echo "New product has been created.<br>";
return DBLink::getDbLink()->insert_id;
}
else
echo "Error creating new product.<br>";
return -1;
}
?>