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In fact, dividing levels is a logical problem. Many novice users use frameworks from the beginning and are spoiled by frameworks. Frameworks can do almost everything. All they have learned is to write code under a certain framework. , and out of the frame, only confusion remains.
Even if a heavy framework like domestic Thinkphp provides the Model layer, there are still very few people using it. Why? Because using the Model layer requires you to divide the logic yourself and write code yourself, which is painful for them, so almost all the people I have seen operate the database in the Controller Directly M('table')->insert($data) and so on. The utilization rate of the Model layer is extremely low. Thinkphp這樣的重型框架，他提供了Model層，用的人仍然很少，為什么？因?yàn)橛?code>Model層還需要自己劃分邏輯，仍少不了自己寫(xiě)代碼，這對(duì)他們來(lái)說(shuō)是痛苦的，所以我見(jiàn)過(guò)的幾乎所有的人操作數(shù)據(jù)庫(kù)都是在Controller里直接M('table')->insert($data)等。Model層的利用率極低。
而對(duì)于非小白用戶，Model層無(wú)法就是個(gè)封裝了某個(gè)表的數(shù)據(jù)庫(kù)操作類(lèi)而已，隨手就創(chuàng)建了，何須框架來(lái)多此一舉，浪費(fèi)性能？
只要心中就有mvc，一切都有層次。
而且，隨著composerFor non-novice users, the Model layer cannot be just a database operation class that encapsulates a certain table and is created casually. Why do we need a framework to do this and waste performance?