Interpret the core implementation principles of the brain map function (PHP+Vue)

Interpretation of the core implementation principles of the brain map function (PHP Vue)

Brain map is a commonly used tool that can help us organize and organize our thinking, and conveniently Show it. In this article, we will use PHP and Vue to implement a simple brain map function and explain its core implementation principles.

1. Functional requirements analysis

Before starting to implement, we need to clarify the functional requirements so that we can better design and implement the brain map function.

Our brain map function needs to include the following aspects:

1. Create brain map node
2. Edit brain map node
3. Delete brain map Node
4. Mobile Brain Map Node

Based on the above requirements, we can start to design and implement the brain map function.

2. Front-end implementation

1. Installing Vue

First, we need to install Vue.js. You can introduce Vue.js through CDN or use npm to install.

2. Create page structure

In HTML, we need to create a div container to host the display and operation of the brain map.

<div id="app">
  <h1>脑图功能</h1>
  <!-- 脑图容器 -->
  <div id="mindmap-container"></div>
</div>

3. Writing Vue code

In Vue, we need to create a Vue instance to manage the data and operations of the brain map.

new Vue({
  el: '#app',
  data: {
    mindmapData: {}  // 脑图数据
  },
  methods: {
    createNode: function () {
      // 创建脑图节点的方法
    },
    editNode: function () {
      // 编辑脑图节点的方法
    },
    deleteNode: function () {
      // 删除脑图节点的方法
    },
    moveNode: function () {
      // 移动脑图节点的方法
    }
  }
});

4. Realizing node addition, deletion, modification and query operations

In methods, we can implement node addition, deletion, modification and query operations. The following are some code examples:

methods: {
  // 创建脑图节点的方法
  createNode: function () {
    // 在mindmapData中添加新节点的数据
  },
  // 编辑脑图节点的方法
  editNode: function (nodeId) {
    // 根据nodeId找到对应的节点数据，进行编辑操作
  },
  // 删除脑图节点的方法
  deleteNode: function (nodeId) {
    // 根据nodeId找到对应的节点数据，进行删除操作
  },
  // 移动脑图节点的方法
  moveNode: function (nodeId, targetNodeId) {
    // 根据nodeId找到对应的节点数据，将其移动到targetNodeId下面
  }
}

3. Backend implementation

1. Install PHP

First, we need to install the PHP environment, which can be installed by downloading package or use an integrated development environment such as xampp or wamp to install it.

2. Create API interface

In PHP, we need to create an API interface to handle requests sent by the front end and interact with the database.

The following are some code examples:

<?php
// 创建脑图节点接口
function createNode($nodeData) {
  // 将节点数据插入到数据库中
}

// 编辑脑图节点接口
function editNode($nodeId, $nodeData) {
  // 根据nodeId更新数据库中对应节点的数据
}

// 删除脑图节点接口
function deleteNode($nodeId) {
  // 根据nodeId删除数据库中对应节点的数据
}

// 移动脑图节点接口
function moveNode($nodeId, $targetNodeId) {
  // 根据nodeId和targetNodeId更新数据库中对应节点的父节点
}

// 根据请求类型调用对应的接口方法
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
  $body = file_get_contents('php://input');
  $data = json_decode($body, true);

  switch ($data['type']) {
    case 'create':
      createNode($data['nodeData']);
      break;
    case 'edit':
      editNode($data['nodeId'], $data['nodeData']);
      break;
    case 'delete':
      deleteNode($data['nodeId']);
      break;
    case 'move':
      moveNode($data['nodeId'], $data['targetNodeId']);
      break;
    default:
      break;
  }
}
?>

4. Summary

Through the interpretation and sample code of this article, we understand the core implementation principle of the brain map function, and use PHP Implemented a simple brain map function with Vue. I hope this article will be helpful to you and inspire you to implement more complex brain mapping functions in actual development.

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