Parse which file the database operation class in laravel is in

Laravel is an open source PHP web application framework. It is an excellent PHP language framework with elegant syntax and concise and clear code structure. It is widely used in the development of web applications. In Laravel, the database is a very important component, and database operation classes are widely used. So, in Laravel, which file is the database operation class in?

In Laravel, the implementation of database operation classes is implemented through the Eloquent model. The Eloquent model is a very convenient ORM object-relational mapping tool in Laravel. Through the Eloquent model, we can conveniently perform database operations, such as additions, deletions, modifications, and searches.

Eloquent model files are generally stored in the Models subdirectory under the app directory. Each Eloquent model class corresponds to a table in the database. For example, if we want to operate a user table, we can create a User.php file in the app/Models/ directory to correspond to this table. In this User.php file, we need to define a User class that inherits from the Illuminate\Database\Eloquent\Model class, and define some properties and methods in the User class to operate the user table.

For example, if we want to query all records in the user table, we can define the following method in the User class:

public function getAllUsers()
{
    return $this->all();
}

In the above method, $this represents the User object, all( ) method is a query method provided in the Illuminate\Database\Eloquent\Model class, which is used to query all records in the user table.

In Laravel, the Eloquent model has very rich methods that can meet various needs. When using the Eloquent model, we can build a query by chaining methods, for example:

$users = User::where('status', 1)
             ->orderBy('created_at', 'desc')
             ->skip(10)
             ->take(5)
             ->get();

In the above code, first build a query condition through the User::where() method to query all states The user record is 1, and then the query results are sorted through the orderBy() method. The skip() method skips the first 10 records, the take() method takes out the last 5 records, and finally the query results are obtained through the get() method.

In addition to query operations, the Eloquent model also provides many other types of operations, such as adding records, modifying records, deleting records, etc. When using the Eloquent model, we only need to be familiar with the use of these methods, and we can easily complete various operations.

In short, in Laravel, the database operation class is actually completed through the Eloquent model. The Eloquent model file is generally stored in the Models subdirectory under the app directory. Using the Eloquent model can facilitate database operations. , Improving development efficiency is an essential part of Laravel development.

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