我有一堂课，我正尝试尽可能避免参加WET。到目前为止，我已经成功地分配了Mysqli对象以及通过该类通过jquery ajax发送到文件的各个数据变量。我将动作从jquery发送到functions.php，在其中使用switch语句执行不同的方法。我忍不住想，有些事情我可以做得更好，以确保我的代码更干燥。我正在寻找有关如何使代码看起来更好的建议，我想使用诸如this one之类的DAL，但是我不太确定如何在检索到数据后将其包装在html中。此外，我不认为这会减少代码的复杂度。
<?php
class Mysql
{
private $sql;
private $query;
private $id;
private $product_name;
private $label;
private $starting_inventory;
private $minimum_required;
public function __construct()
{
$this->sql = new mysqli('localhost', 'root', '*****', 'ivm');
if ($this->sql->connect_error) {
die("Connection failed: " . $this->sql->connect_error);
}
$this->id = (isset($_POST['id'])) ? $_POST['id'] : 3;
$this->product_name =(isset($_POST['product_name'])) ? $_POST['product_name']:3;
$this->label=(isset($_POST['label'])) ? $_POST['label']:3;
$this->starting_inventory=(isset($_POST['starting_inventory'])) ? $_POST['starting_inventory']:3;
$this->minimum_required=(isset($_POST['minimum_required'])) ? $_POST['minimum_required']:3;
}
public function vendors()
{
$queryText = "SELECT * from vendors";
$query=$this->sql->query($queryText);
if ($query->num_rows > 0) {
while ($row = $query->fetch_assoc()) {
echo '<option value="'.$row["supplier"].'">'.$row["supplier"].'</option>';
}
} else {
echo "0 results";
}
$this->sql->close();
}
public function items()
{
$queryText = "SELECT * from products";
$query=$this->sql->query($queryText);
if ($query->num_rows > 0) {
while ($row = $query->fetch_assoc()) {
echo '<option value="'.$row["ProductName"].'">'.$row["ProductName"].'</option>';
}
} else {
echo "0 results";
}
$this->sql->close();
}
public function get_incoming_product()
{
$queryText = "SELECT incoming.PurchaseDate, products.ProductName, incoming.NumReceived, vendors.supplier
FROM incoming, vendors, products
WHERE vendors.id = incoming.SupplierId and incoming.ProductId = products.id and incoming.id = $this->id limit 10";
$query= $this->sql->query($queryText);
if ($query->num_rows > 0) {
// echo view('products', 'open');
while ($row = $query->fetch_assoc()) {
echo '
<div class="container manage-table">
<h1>Manage Product</h1>
<div class="form-row">
<div class="form-group col-sm-6">
<label for="product-name">Product Name</label>
<select class="form-control item-dropdown">
</select>
<label for="purchase-date">Purchase Date</label>
<input id="purchase-date" value="'.$row["PurchaseDate"].'" class="purchase-date form-control"></input>
</div>
<div class="form-group col-sm-6">
<label for="number-received">Number Received</label>
<input id="number-received" value="'.$row["NumReceived"].'" class="number-received form-control"></input>
<label for="vendor">Vendor</label>
<select class="form-control vendor-dropdown">
</select>
</div>
</div>
<button data-id="'.$row["id"].'" data-action="edit_product" class="get edit-product btn btn-primary">Confirm</button></br>
<p class="parCreate"></p>
</div>
';
}
// echo view('products', 'close');
} else {
echo "0 results";
}
$this->sql->close();
}
public function view_incoming()
{
$queryText = "SELECT incoming.PurchaseDate, products.ProductName, incoming.NumReceived, vendors.supplier, incoming.id
FROM incoming, vendors, products
WHERE vendors.id = incoming.SupplierId and incoming.ProductId = products.id limit 10";
$query = $this->sql->query($queryText);
echo view('incoming', 'open');
if ($query->num_rows > 0) {
while ($row = $query->fetch_assoc()) {
echo '
<tr class="edit_row">
<td>'.$row["PurchaseDate"].'
<div data-id="'.$row["id"].'" class="manage">
<i data-id="'.$row["id"].'" data-action="confirm_delete" class="fas fa-times edit incoming get"></i>
<i data-id="'.$row["id"].'" data-action="" class="fas fa-plus edit get"></i>
<i data-id="'.$row["id"].'" data-action="get_incoming_product" class="fas fa-pencil-alt edit single-incoming get"></i>
</div>
</td>
<td>'.$row["ProductName"].'</td>
<td>'.$row["NumReceived"].'</td>
<td>'.$row["supplier"].'</td>
</tr>
';
}
} else {
echo "0 results";
}
echo view('incoming', 'close');
$this->sql->close();
}
public function delete_product()
{
$queryText = "DELETE from products where id = $this->id";
if ($this->sql->query($queryText) === true) {
echo 'Record updated successfully '.$id;
} else {
echo "Error updating record: " . $this->sql->error;
}
$this->sql->close();
}
public function confirm_delete()
{
$queryText = "SELECT * from products where id = $this->id";
$query= $this->sql->query($queryText);
if ($query->num_rows > 0) {
// echo view('products', 'open');
while ($row = $query->fetch_assoc()) {
echo '
<div class="container manage-table">
<h1>Delete Product</h1>
<h2 class="">Are you sure? Delete '.$row["ProductName"].'?</h2>
<button data-id="'.$row["id"].'" data-action="delete_product" class="get delete-product btn btn-primary">Confirm</button></br>
<p class="parCreate"></p>
</div>
';
}
// echo view('products', 'close');
} else {
echo "0 results";
}
$this->sql->close();
}
public function get_product()
{
$queryText = "SELECT * from products where id = $this->id";
$query= $this->sql->query($queryText);
if ($query->num_rows > 0) {
// echo view('products', 'open');
while ($row = $query->fetch_assoc()) {
echo '
<div class="container manage-table">
<h1>Manage Product</h1>
<div class="form-row">
<div class="form-group col-sm-6">
<label for="product-name">Product Name</label>
<input id="product-name" value="'.$row["ProductName"].'" class="product-name form-control"></input>
<label for="label">Label</label>
<input id="label" value="'.$row["Label"].'" class="label form-control"></input>
</div>
<div class="form-group col-sm-6">
<label for="starting-inventory">Starting Inventory</label>
<input id="starting-inventory" value="'.$row["StartingInventory"].'" class="starting-inventory form-control"></input>
<label for="minimum-required">Minimum Required</label>
<input id="minimum-required" value="'.$row["MinimumRequired"].'" class="minimum-required form-control"></input>
</div>
</div>
<button data-id="'.$row["id"].'" data-action="edit_product" class="get edit-product btn btn-primary">Confirm</button></br>
<p class="parCreate"></p>
</div>
';
}
// echo view('products', 'close');
} else {
echo "0 results";
}
$this->sql->close();
}
public function edit_product()
{
$queryText = "UPDATE products
set ProductName = '$this->product_name',
Label = '$this->label',
StartingInventory = $this->starting_inventory,
MinimumRequired = $this->minimum_required
where id = $this->id
";
if ($this->sql->query($queryText) === true) {
echo "Record updated successfully";
} else {
echo "Error updating record: " . $this->sql->error;
}
$this->sql->close();
}
public function view_products()
{
$queryText = "SELECT * from products";
$query= $this->sql->query($queryText);
if ($query->num_rows > 0) {
echo view('products', 'open');
while ($row = $query->fetch_assoc()) {
echo '
<tr class="edit_row">
<td>'.$row["ProductName"].'
<div data-id="'.$row["id"].'" class="manage">
<i data-id="'.$row["id"].'" data-action="confirm_delete" class="fas fa-times edit get"></i>
<i data-id="'.$row["id"].'" data-action="" class="fas fa-plus edit get"></i>
<i data-id="'.$row["id"].'" data-action="get_product" class="fas fa-pencil-alt edit get"></i>
</div>
</td>
<td>'.$row["Label"].'</td>
<td>'.$row["StartingInventory"].'</td>
<td>'.$row["MinimumRequired"].'</td>
</tr>
';
}
echo view('products', 'close');
} else {
echo "0 results";
}
$this->sql->close();
}
public function add_new_product()
{
$prodName= (isset($_POST['prodName'])) ? $_POST['prodName'] : 3;
$starting= (isset($_POST['starting'])) ? $_POST['starting'] : 3;
$minimum= (isset($_POST['minimum'])) ? $_POST['minimum'] : 3;
$queryText = "insert into products (ProductName, StartingInventory, MinimumRequired)
VALUES ('$prodName', $starting, $minimum)";
$query= $this->sql->query($queryText);
$this->sql->close();
}
public function add_purchase()
{
$queryText = "SELECT * FROM products";
$query= $this->sql->query($queryText);
if ($query->num_rows > 0) {
// echo view('current_inv', 'open');
echo '<option>Select a product:</option>';
while ($row = $query->fetch_assoc()) {
echo '
<option>'.$row["ProductName"].'</option>
';
}
// echo view('current_inv', 'close');
} else {
echo "0 results";
}
$this->sql->close();
}
public function prod_dropdown()
{
$queryText = "SELECT * FROM products";
$query= $this->sql->query($queryText);
if ($query->num_rows > 0) {
// echo view('current_inv', 'open');
echo '<option>Select a product:</option>';
while ($row = $query->fetch_assoc()) {
echo '
<option>'.$row["ProductName"].'</option>
';
}
// echo view('current_inv', 'close');
} else {
echo "0 results";
}
$this->sql->close();
}
public function get_current_inv()
{
$queryText = 'SELECT p.id, coalesce(ig.NumReceived,0) as NumReceived,
coalesce(og.NumShipped,0) as NumShipped, p.Label,
coalesce((p.StartingInventory-og.NumShipped+ig.NumReceived), p.StartingInventory)
as OnHand, p.ProductName,
p.StartingInventory, p.MinimumRequired
from products p
left outer join (
select productid, sum(NumReceived) as NumReceived
from incoming
group by productid
) as ig on p.id = ig.productid
left outer join (
select productid, sum(NumberShipped) as NumShipped
from outgoing
group by productid
) as og on p.id = og.productid';
$query= $this->sql->query($queryText);
if ($query->num_rows > 0) {
echo view('current_inv', 'open');
while ($row = $query->fetch_assoc()) {
echo '
<tr>
<td>'.$row["ProductName"].'</td>
<td>'.$row["Label"].'</td>
<td>'.$row["StartingInventory"].'</td>
<td>'. $row["NumShipped"].'</td>
<td>'.$row["NumReceived"].'</td>
<td>'.$row["OnHand"].'</td>
<td>'.$row["MinimumRequired"].'</td>
</tr>
';
}
echo view('current_inv', 'close');
} else {
echo "0 results";
}
$this->sql->close();
}
public function get_incoming()
{
$queryText = "SELECT incoming.PurchaseDate, products.ProductName, incoming.NumReceived, vendors.supplier
FROM incoming, vendors, products
WHERE vendors.id = incoming.SupplierId and incoming.ProductId = products.id limit 10";
$query = $this->sql->query($queryText);
echo view('incoming', 'open');
if ($query->num_rows > 0) {
while ($row = $query->fetch_assoc()) {
echo '
<tr>
<td>'.$row["PurchaseDate"].'</td>
<td>'.$row["ProductName"].'</td>
<td>'.$row["NumReceived"].'</td>
<td>'. $row["supplier"].'</td>
</tr>
';
}
} else {
echo "0 results";
}
echo view('incoming', 'close');
$this->sql->close();
}
public function get_outgoing()
{
$queryText = "SELECT * FROM outgoing limit 10 offset 0";
$query = $this->sql->query($queryText);
if ($query->num_rows > 0) {
echo view('outgoing', 'open');
while ($row = $query->fetch_assoc()) {
echo '
<tr>
<td>'.$row["First"].'</td>
<td>'.$row["Middle"].'</td>
<td>'.$row["Last"].'</td>
<td>'. $row["ProductId"].'</td>
<td>'.$row["NumberShipped"].'</td>
<td>'.$row["OrderDate"].'</td>
</tr>
';
}
echo view('outgoing', 'close');
} else {
echo "0 results";
}
$this->sql->close();
}
public function get_archive($table, $name, $page)
{
$page--;
$page *= 9;
return "SELECT * FROM $table limit 10 offset $page";
}
public function num_shipped($pid)
{
return "SELECT SUM(NumberShipped) FROM outgoing WHERE ProductId = $pid";
}
}
$action= (isset($_POST['action'])) ? $_POST['action'] : 3;
$object = new Mysql();
switch ($action) {
// case 'get_current_inv': get_current_inv();
case 'get_current_inv': $object->get_current_inv();
break;
case 'get_outgoing': $object->get_outgoing();
break;
case 'get_incoming': $object->get_incoming();
break;
case 'prod_dropdown': $object->prod_dropdown();
break;
case 'add_new_product': $object->add_new_product();
break;
case 'view_products': $object->view_products();
break;
case 'get_product': $object->get_product();
break;
case 'edit_product': $object->edit_product();
break;
case 'confirm_delete': $object->confirm_delete();
break;
case 'delete_product': $object->delete_product();
break;
case 'view_incoming': $object->view_incoming();
break;
case 'get_incoming_product': $object->get_incoming_product();
break;
case 'items': $object->items();
break;
case 'vendors': $object->vendors();
break;
}
function view($view, $operate)
{
if ($operate=='close') {
return '</tbody>
</table>
</div>
';
}
switch ($view) {
case 'products':
return '
<div class="table-wrapper">
<table class="fl-table">
<thead>
<tr>
<th>Name</th>
<th>Label</th>
<th>Starting Inventory</th>
<th>Minimum Required</th>
</tr>
</thead>
<tbody>
';
case 'current_inv':
return '
<div class="table-wrapper">
<table class="fl-table">
<thead>
<tr>
<th>Name</th>
<th>Label</th>
<th>Current Inventory</th>
<th>Shipped</th>
<th>Incoming</th>
<th>On Hand</th>
<th>Minimum Required</th>
</tr>
</thead>
<tbody>
';
case 'incoming':
return '
<div class="table-wrapper">
<table class="fl-table">
<thead>
<tr>
<th>Purchase Date</th>
<th>Product Name</th>
<th>Number Received</th>
<th>Supplier</th>
</tr>
</thead>
<tbody>
';
case 'outgoing':
return '
<div class="table-wrapper">
<table class="fl-table">
<thead>
<tr>
<th>First Name</th>
<th>Middle Name</th>
<th>Last Name</th>
<th>Product ID</th>
<th>Number Shipped</th>
<th>Order Date</th>
</tr>
</thead>
<tbody>
';
}
}