Directory of this series

1. Installing Phalcon on Windows "Phalcon Pit Guide Series 1"

Preface

The previous articleintroduced you to the installation of Phalcon and the use of Phalcon development tools Created projects, controllers, and models. Just did a few simple operations.

In this issue, we will continue to talk about the actual use of Phalcon.

1. Project structure

From As can be seen from the above figure, this directory structure is very similar to the TP framework. The corresponding directories will not be explained one by one. Let me tell you about the migrations directory.

This directory is just like the database migration in laravel. I won’t go into details on how to use it!

The framework structure is not fixed. Like ThinkPHP, you can register a namespace to modify the directory structure.

In the Phalcon framework, Kaka’s recent project was also developed using multiple modules. However, the directory structure is also different from the directory generated using the Phalcon development tool.

Everything remains the same, they all look the same.

2. Entry file

An essential file for each framework, index.php seems to be all Developer default.

Then it is also essential in the framework of Phalcon.

I won’t analyze the source code in detail about what is loaded here. It is not necessary.If you want to see the source code analysis, you can search for ThinkPHP framework source code analysis.

The general execution is to perform dependency injection first, and use/config/services.phpto introduce some files. What you need to pay attention to is that the database connection is made here.

This file/config/router.phpYou will know what it is by looking at the name, routing! How to set up routing will be discussed later.

Get the configuration information after passing the first step of dependency injection.

The last line of code isinclude APP_PATH . '/config/loader.php';Register the directory obtained from the configuration information.

3. Configure Nginx

In the first issue of the article, the project was not configured. Let’s do a simple configuration next.

Phalcon provides three ways of configuration, let’s just use the simplest one first.

The above is the configuration of Kaka. If you are also using PhpStudy, you can directly copy it and use it.

4. Controller jump

In the first article, the control was created using the phalcon development tool If you haven't created a project yet, you need to read the first article!

Let’s see how the visit goes first.

Code

You can see that in the index controller, another method kaka is also established.

Mainstream frameworks are configured with the index controller as the default access path. How to access this kaka is the same as other frameworks.

The access link ishttp://www.kakaweb.com/index/kaka.

is the domain name controller method name. It should be noted that the method name here does not need to include Action.

Practice the official case.

You can see that the output result is a link

This link will jump directly to the Signup controller. Next, use the developer tools to generate this controller.

Then click the button just now and it will jump to the Signup controller.

Let’s talk about the controller first.

5. Database addition, deletion, modification and query

You can see that it is defined in advance in the model file Okay, two methods, no matter what they are, let’s try them first.

Write the following code directly in the controller

find method is to get all the data
• findFirst only takes the first piece of data
• find(15) Query the data with id 15
• find("type = 'mechanical'"); Conditional search

Insert data

public function holdAction () { $user = new User(); $phql = "INSERT INTO User (name, age, sex) VALUES (:name:, :age:, :sex:)"; $status = $user->modelsManager->executeQuery($phql, array( 'name' => "咔咔1", 'age' => 24, 'sex' => 1 )); }

public function modifyAction () { $user = new User(); $phql = "UPDATE User SET name = :name:, age = :age:, sex = :sex: WHERE id = :id:"; $status = $user->modelsManager->executeQuery($phql, array( 'id' => 20, 'name' => "咔咔2", 'age' => 25, 'sex' => 2 )); }

public function deleteAction () { $user = new User(); $phql = "DELETE FROM User WHERE id = :id:"; $status = $user->modelsManager->executeQuery($phql, array( 'id' => 20 )); }