- This application is magazine domain with three models? : Author, Article, Magazine.
- It allows a user to view the authors of articles in the magazine and which articles belong in which magazine.
- An author has many articles.
- A magazine has many articles.
- Articles belong to both Author and Magazines.
- Author to Magazine is a many to many relationship.
- Classes should have their own files.
- There should be a configured run file for the app.
- create an article class
- should have attributes author, magazine and title
- initialize attr_reader method to create a getter method for those attributes
- create an "all" class variable to store all instances of "article" that have been created(should be an empty string)
- create an initialize method that takes author, magazine and title as arguments and sets them accordingly
- add the newly created instance to "all" array
- create a self.all class method that should return an array of all "Article" instances created
- create magazine class
- should have three attributes name, category and a class variable @@all
- @@all should be an empty string to store all instances
- create an initialize method that takes name and category as arguments
- name and category should have a reader and writer methods
- it initializes a new Magazine object with name and category and pushes the instance to the @@ll array
- create self.all class method to return all instances of the Magazine class that has been initialized
- creat an instance method contributors which returns an array of all authors that have written for this magazine(map over them to get the authors)
- create an instance self.find_by_name it should take name as argument
- it should return the first magazine object that matches, this is done by the use of find method on the "all" array of magazine.(magazine.name == name)
- create an article_titles instance method
- it should return an array string of the titles of all articles written for this magazine class.
- create contributing_authors method
- it should return an array of authors who have written more than 2 articles
- create array to hold all authors who have contributed more than two articles its done by iterating through all of the author instances (Author.all)
- create count
- initialize it to 0
- iterate through all of the articles and increment count
- use group_by method to group articles by author name
- use select method to filter the authors for those who have contributed more than 2 articles
- return contibuting_author(array of selected authors) that are uniq
- create author class
- an initialize method to take name argument and set it as an instance variable
- create @@all and it should be an empty string to store all instances
- name attribute should have a reader method
- create an article instance method that should return an array of all the article instances that are written by this author
- create a magazine instance method that should return an array of unique magazine instances writen by this author
- createe an add_article instance method that takes in two parameters, magazine and title
- it takes in a new Article instance the Author, magazine instance and a title that is a string
- has topic_areas instance method that returns an array of af all the unique "category" attributes of the Magazine instances that this Author has written
-
This is a code challenge uses Ruby language
-
It has three files:
-
magazine.rb file that does the following:
- It has a class method. It has an initialize method that initializes the name and category as a string. It has a name method that returns the name of the magazine. It has a category method that returns the category of the magazine. It has an all instance that returns the array of all magazine instances. It has self.find_by_name method that returns the first magazine object that matches. It has article_titles method that returns an array string of the titles of all articles written for that magazine. It has contributing_authors method that returns an array of authors who have written more than 2 articles for the magazine
-
article.rb file that does the following:
- It has a class Article. It has an initialize method that takes in author, magazine and title as arguments and sets them accordingly. It has a getter method to get the arguments. It has a title method that returns the titke for that given article. It has a self.all method that returns an array of all Article instances.
-
author.rb file that does the follow:
- It has an initialize method that takes name as argument. It has a getter method to get the name of the author. It has a name method that returns the name of the author. It has add_article method that takes magazine and title as arguments. It creates a new Article instance and associates it with that author and that magazine. It has topic_areas method that Returns a unique array of strings with the categories of the magazines the author has contributed to.
-
run.rb file that:
- It is used to run the code from the three files
-
-
Prerequisites
-
In order for you to use the content on this repo ensure you have the following:
-
A computer that runs on either of the following; (Linux, Mac OS and Windows)
-
nodejs 9.0+
-
node v14.17.4 and above
-
npm 6.14.14 and above
-
Vue 2.6.11
-
Status:
- maintained, and is currently in development
-
Version:
- v0.1.0
-
-
-
Setup instructions:
-
To use this repository on your machine requires some simple steps:
-
Open a terminal / command line interface on your computer
-
Clone the repo by using the following to create a copy on your local machine:
-
Change directory to the repo folder:
- cd Articles--without-AR
-
Open it in Visual Studio Code
- code .
-
-
- MohammedAmin Ahmed
- MIT Copyright (c) 2022 MohamedAmin Ahmed
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent