午夜伧理A级日韩1片

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新增獨立模塊

新增模型層(model/tao) 分享鏈接 /book/extension-dev/new-model-1327.html

作者：朱金勇最后编辑：朱金勇于 2024-07-25 10:10:10 浏覽量：2670

本篇目錄

一、模型层 model

文件位置

禅道的模型層在model.php文件裏編寫，主要用來處理各種數據的查詢、更新。

還是以oa模塊爲例，新增一個extension/custom/oa/model.php文件。

代碼編寫

在model.php文件里创建一个名称为：模块名+'Model' 的类，继承自model类。model类是禅道框架的基础类，可以在framework/model.class.php查看具体实现。

比如oa模塊：

<?php
class oaModel extends model
{
    public function getList()
    {
        return $this->dao->select('*')->from(TABLE_TODO)->fetchAll();
    }
}

1. 通过dao访问数据库

dao的寫法跟SQL非常相似，詳細的介紹請參閱dao文檔：/book/extension-dev/dao-1332.html。

2. control层调用model方法

model層的代碼需要被control層調用才能執行，調用的方式分兩種：

相同模塊的control类方法，可以直接调用，比如 $this->oa->getList();

其他模塊的control類方法，需要先load該model。
比如在user模塊，使用方式如下：

<?php
class user extends control
{
    public function xxx()
    {
        $this->loadModel('oa');
        $oaList = $this->oa->getList();
        ...
    }
}

二、模型子層tao

tao層是禅道20版本之後增加的新的邏輯分層，主要解決的是mdel層代碼臃腫，將model層的子邏輯放在tao層。注意：tao層是可選的。

文件位置

新增模块的zen层需要在 extension/custom/xxx 目錄下新增一个 tao.php 文件，比如 extension/custom/oa/tao.php。

代碼編寫

在tao.php文件里声明一个名为模块名 + 'Tao' 的类，继承自该模块的model类，比如oa模块就继承上面model层增加的oaModel类。

因此tao跟model一樣可以調用dao訪問數據庫。

<?php
class oaTao extends oaModel
{
    public function getList()
    {
        return $this->dao->select('*')->from(TABLE_TODO)->fetchAll();
    }
}

model层可以通过诸如 $this->oaTao->getList(); 的方式调用 tao 层的方法。

三、限制

由于框架加載機制的限制，每個新模塊只能有一個model類和tao類。

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