Rails advanced -- framework theory cognition and construction scheme construction (I)

Preface

For individuals , Building your own website is undoubtedly a very tedious and time-consuming work , In particular, the whole network system should be built at the level of programming language . It involves a lot of different knowledge and content , And has features that are difficult to maintain . And on this premise , Various network frameworks have been applied . They consist of a number of generators . meanwhile , Inherited Ruby The many benefits of object-oriented languages .

in addition ,Rails The framework adds two new programmer friendly conventions ：

i> Habit is greater than configuration ;

ii> Never write code again .

Catalog

Basic construction method

From a beginner's point of view , We all need a case , And it is analyzed and discussed . Then analyze its principle from the back , Observe its structure from the surface .

In the research process of many aspects of computer science , The most important point is the design of data structure . To be frank with you , It is the mastery of data and the call and understanding of the machine .

And for the whole rails The structure of the program is arranged as follows ：

> Create project

> View the project directory structure

> View the project database configuration

> Create a homepage

> Use the generator to create Rails Program

>scaffold Use of generator

> Analyze the execution process of the program

> Perfect the website

Create project

Use rails establish web Applications can save a lot of time as developers . This is because rails Code generators are very handy . You can create one with a simple command web project .

The simplest "hello, world” The project construction code is as follows ：

rails new hellosite
cd hellosite
rails server

filling ：