Thoughts on the design of mall SKU inventory warning and management system developed with PHP

Thinking about the design of mall SKU inventory warning and management system developed with PHP

With the continuous development and growth of e-commerce, more and more malls are beginning to pay attention to the importance of inventory management. Especially in malls with a large number of SKUs (Stock Keeping Units), accurate inventory control and timely warnings are particularly important. This article will introduce the design thinking of the mall SKU inventory warning and management system developed using PHP, hoping to be helpful to developers in actual projects.

1. System requirements analysis
Before designing the SKU inventory warning and management system, we need to analyze the system requirements. Basic functional requirements include:

1. SKU management: including SKU addition, editing, deletion and other operations;
2. Inventory management: including initial entry of inventory, inventory adjustment, inventory query, etc. Operation;
3. Inventory warning: When the inventory quantity is lower than a certain threshold, the system automatically sends an early warning notification to relevant personnel;
4. Data statistics and report generation: Generate inventory quantity, sales and other data Statistical reports;
5. User permissions management: Control permissions for users with different roles.

2. System design and implementation

1. Database design
   First, we need to design a database table structure suitable for storing SKU and inventory information. Here, MySQL is used as an example. The specific table structure is as follows:

-- SKU表
CREATE TABLE `sku` (
  `id` int NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL COMMENT 'SKU名称',
  -- 其他SKU信息字段...
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='SKU信息表';

-- 库存表
CREATE TABLE `stock` (
  `id` int NOT NULL AUTO_INCREMENT,
  `sku_id` int NOT NULL COMMENT 'SKU ID',
  `quantity` int NOT NULL DEFAULT '0' COMMENT '库存数量',
  -- 其他库存信息字段...
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='库存信息表';

2. System architecture design
   Based on demand analysis, we can initially design the system architecture.

├── app
│   ├── controllers
│   │   ├── SkuController.php
│   │   ├── StockController.php
│   │   └── ...
│   ├── models
│   │   ├── SkuModel.php
│   │   ├── StockModel.php
│   │   └── ...
│   ├── views
│   │   ├── sku
│   │   │   ├── add.php
│   │   │   ├── edit.php
│   │   │   └── ...
│   │   ├── stock
│   │   │   ├── adjust.php
│   │   │   ├── query.php
│   │   │   └── ...
│   │   └── ...
│   ├── config.php
│   └── ...
├── public
│   ├── index.php
│   └── ...
└── ...

3. Function Implementation
   In terms of function implementation, we take SKU management as an example to illustrate.

(1) SKU list
On the SKU list page, we can display all SKU information and provide operations such as adding, editing, and deleting. Below are corresponding controller and view code examples.

Controller code (SkuController.php):

class SkuController {
  public function index() {
    $skuModel = new SkuModel();
    $skus = $skuModel->getList();
    include('path/to/sku/list.php');
  }
}

View code (list.php):

<table>
  <tr>
    <th>ID</th>
    <th>SKU名称</th>
    <th>操作</th>
  </tr>
  <?php foreach ($skus as $sku): ?>
    <tr>
      <td><?php echo $sku->id; ?></td>
      <td><?php echo $sku->name; ?></td>
      <td>
        <a href="edit.php?id=<?php echo $sku->id; ?>">编辑</a>
        <a href="delete.php?id=<?php echo $sku->id; ?>">删除</a>
      </td>
    </tr>
  <?php endforeach; ?>
</table>

At this point, we have completed the display of the SKU list page.

(2) Add SKU
The add SKU page needs to provide a form, the user can enter the relevant information of the SKU and submit the data to the background for processing.

Controller code (SkuController.php):

class SkuController {
  public function add() {
    include('path/to/sku/add.php');
  }
  
  public function store() {
    // 处理表单数据，保存到数据库
    // ...
  }
}

View code (add.php):

<form action="store.php" method="post">
  <label for="name">SKU名称：</label>
  <input type="text" id="name" name="name" /><br>
  <!-- 其他SKU信息字段... -->
  <input type="submit" value="保存" />
</form>

(3) Edit SKU
Edit SKU page and add The SKU page is similar. You need to query the specified SKU information first, and then fill it into the form for users to edit.

Controller code (SkuController.php):

class SkuController {
  public function edit() {
    $id = $_GET['id'];
    $skuModel = new SkuModel();
    $sku = $skuModel->getById($id);
    include('path/to/sku/edit.php');
  }
  
  public function update() {
    $id = $_POST['id'];
    // 更新SKU信息
    // ...
  }
}

View code (edit.php):

<form action="update.php" method="post">
  <input type="hidden" name="id" value="<?php echo $sku->id; ?>" />
  <label for="name">SKU名称：</label>
  <input type="text" id="name" name="name" value="<?php echo $sku->name; ?>" /><br>
  <!-- 其他SKU信息字段... -->
  <input type="submit" value="保存" />
</form>

Through the above example, we have completed adding and editing SKU Function.

4. System Expansion and Optimization
In actual projects, in order to meet richer needs, we can further expand and optimize the system. For example:

1. Implement the inventory early warning function. When the inventory quantity is lower than a certain threshold, an early warning notification is sent to relevant personnel.
2. Perform inventory forecasting based on sales and provide the function of automatically adjusting inventory thresholds.
3. Add permission control function to manage permissions for users with different roles.
4. Optimize inventory query and statistical functions to improve system response speed.

Summary:
This article introduces the design thinking of the mall SKU inventory warning and management system developed using PHP, and provides specific code examples. We hope that the introduction in this article can help developers better understand and apply inventory management systems and improve the operational efficiency of e-commerce platforms.

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