In this project, we will be practicing object relationships in Ruby, with a particular emphasis on the has_many
through
relationship (aka: many-to-many). Please read the whole README before writing any code!
You've been approached by your local cult leaders to build out a foundation for a new app they are all using to gather recruits. As the open-minded freelancers that you are, you've agreed to do so!
Before you begin, first run the following command in your terminal to install the dependencies required for this lab:
bundle install
You can now add all of your Ruby files for your models in the app/models
folder. You do not need to require them. They will be automagically require for you so long as you use the tools/console.rb
file to run your code.
Through this file, we've provided to you a console that you can use to test your code. To enter a console session, run ruby tools/console.rb
from the command line. You'll be able to test out the methods that you write here. Take a look at that file to see how you can pre-define variables and create object instances, rather than manually doing it in every single console session.
Your goal is to build out all of the methods listed in the deliverables. Do your best to follow Ruby best practices. For example, use higher-level array methods such as map
, select
, and find
when appropriate in place of each
.
First step is to model the domain you are building out. As a non-discriminatory cult recruitment platform, Cult
s will have many Follower
s while Follower
s will be allowed to join many Cult
s. How do they keep track of this? BloodOath
s of course! You cannot join a Cult
without making a BloodOath
.
- What are your models?
- What does your schema look like?
- What are the relationships between your models?
With your domain modeled, you now need to build out some basic functionality so both Cult
s and Follower
s can use your platform to make BloodOath
s. A social network of cults if you will. So general searching type functionality.
Questions you should ask yourself:
- Do I need any other attributes?
- Should I write any other methods?
- Am I following Single Source of Truth?
Cult
Cult#name
- returns a
String
that is the cult's name -DONE
- returns a
Cult#location
- returns a
String
that is the city where the cult is located - DONE
- returns a
Cult#founding_year
- returns a
Fixnum
that is the year the cult was founded - DONE
- returns a
Cult#slogan
- returns a
String
that is this cult's slogan - DONE
- returns a
Cult#recruit_follower
- takes in an argument of a
Follower
instance and adds them to this cult's list of followers - DONE
- takes in an argument of a
Cult#cult_population
- returns a
Fixnum
that is the number of followers in this cult- DONE
- returns a
Cult.all
- returns an
Array
of all the cults - DONE
- returns an
Cult.find_by_name
- takes a
String
argument that is a name and returns aCult
instance whose name matches that argument- DONE
- takes a
Cult.find_by_location
- takes a
String
argument that is a location and returns anArray
of cults that are in that location
- takes a
Cult.find_by_founding_year
- takes a
Fixnum
argument that is a year and returns all of the cults founded in that year
- takes a
Follower
Follower#name
- returns a
String
that is the follower's name - DONE
- returns a
Follower#age
- returns a
Fixnum
that is the age of the follower - DONE
- returns a
Follower#life_motto
- returns a
String
that is the follower's life motto - DONE
- returns a
Follower#cults
- returns an
Array
of this follower's cults
- returns an
Follower#join_cult
- takes in an argument of a
Cult
instance and adds this follower to the cult's list of followers
- takes in an argument of a
Follower.all
- returns an
Array
of all the followers - DONE
- returns an
Follower.of_a_certain_age
- takes a
Fixnum
argument that is an age and returns anArray
of followers who are the given age or older
- takes a
BloodOath
BloodOath#initiation_date
- returns a
String
that is the initiation date of this blood oath in the format YYYY-MM-DD.
- returns a
BloodOath.all
- returns an
Array
of all the blood oaths
- returns an
Our cult social network platform is working well. Let's first make a commit!
Now we want to build out some useful features so Cult
s and Follower
s and get more value out of our app.
Cult
Cult#average_age
- returns a
Float
that is the average age of this cult's followers
- returns a
Cult#my_followers_mottos
- prints out all of the mottos for this cult's followers
Cult.least_popular
- returns the
Cult
instance who has the least number of followers :(
- returns the
Cult.most_common_location
- returns a
String
that is the location with the most cults
- returns a
Follower
Follower#my_cults_slogans
- prints out all of the slogans for this follower's cults
Follower.most_active
- returns the
Follower
instance who has joined the most cults
- returns the
Follower.top_ten
- returns an
Array
of followers; they are the ten most active followers
- returns an
BloodOath
BloodOath.first_oath
- returns the
Follower
instance for the follower that made the very first blood oath
- returns the
Our platform is done! Let's commit our code!
Now one highly requested feature from Follower
s using your app that you plan to paywall ($$$) is to see your fellow cult members. See if you can implement this method.
Follower#fellow_cult_members
- returns a unique
Array
of followers who are in the same cults as you
- returns a unique
A highly requested feature from Cult
s using your app that you plan to paywall ($$$) is to restrict ages for recruits. See if you can implement this functionality.
Cult#minimum_age
- returns a
Fixnum
that is the minimum age required for followers joining this cult
- returns a
Cult#recruit_follower
- takes in an argument of a
Follower
instance and adds them to this cult's list of followers - NOW this is changed such that if the given
Follower
instance is not of age:- do not let them join the cult
- print out a friendly message informing them that they are too young
- takes in an argument of a
Follower#join_cult
- takes in an argument of a
Cult
instance and adds this follower to the cult's list of followers - NOW this is changed such that if you don't meet the minimum age requirement of the given
Cult
instance:- do not let them join the cult
- print out a friendly message informing them that they are too young
- takes in an argument of a
Congrats on finishing your cult social network platform. Time to rake in the $$$!