For this assignment, we'll be working with a Concert domain.
We have three models: Band
, Concert
, and Venue
.
For our purposes, a Band
has many Concerts
, a Venue
has many Concerts
s, and a Concert
belongs to a Band
and to a Venue
.
Band
- Venue
is a many to many relationship.
Note: You should draw your domain on paper or on a whiteboard before you start coding. Remember to identify a single source of truth for your data.
- Classes and Instances
- Class and Instance Methods
- Variable Scope
- Object Relationships
- lists and list Methods
To get started, run pipenv install
while inside of this directory.
Build out all of the methods listed in the deliverables. The methods are listed in a suggested order, but you can feel free to tackle the ones you think are easiest. Be careful: some of the later methods rely on earlier ones.
Remember! This code challenge does not have tests. You cannot run pytest
. You'll need to create your own sample instances so that you can try out your code on your own. Make sure your associations and methods work in the console before submitting.
We've provided you with a tool that you can use to test your code. To use it, run python tools/debug.py
from the command line. This will start a ipdb
session with your classes defined. You can test out the methods that you write here. You can add code to the tools/debug.py
file to define variables and create sample instances of your objects.
Writing error-free code is more important than completing all of the deliverables listed - prioritize writing methods that work over writing more methods that don't work. You should test your code in the console as you write.
Similarly, messy code that works is better than clean code that doesn't. First, prioritize getting things working. Then, if there is time at the end, refactor your code to adhere to best practices. When you encounter duplicated logic, extract it into a shared helper method.
Before you submit! Save and run your code to verify that it works as you expect. If you have any methods that are not working yet, feel free to leave comments describing your progress.
Write the following methods in the classes in the files provided. Feel free to build out any helper methods if needed.
Some of the methods listed are provided to you in the starter code. You should check that they work correctly, and that you understand them.
Band __init__(name, hometown)
- should initialize with a name (string) and hometown (string)
Band name()
- should return the
Band
's name - should be able to change its name after creation
- should return the
Band hometown()
- should return the
Band
's hometown - should not be able to change its hometown after creation
- should return the
Band all()
- returns an list of all the instances of
Band
- returns an list of all the instances of
Venue __init__(title, city)
- should initialize with a title (string) and city (string)
Venue title()
- should return the title of the venue
- should be able to change its title after creation
Venue city()
- should return the city of the venue
- should not be able to change its city after creation
Venue all()
- returns all the instances of
Venue
- returns all the instances of
Concert __init__(date, band, venue)
- should initialize with a date (string), band, and venue
Concert all()
- should return all instances of
Concert
- should return all instances of
Concert band()
- should return the
Band
instance for this concert
- should return the
Concert venue()
- should return the
Venue
instance for this concert
- should return the
Venue concerts()
- returns an list of all the concerts for the venue
Venue bands()
- returns an list of all the bands for the venue
Band concerts()
- should return an list of all the concerts that the band has played in
Concert hometown_show()
- returns
true
if the concert is in the band's hometown,false
if it is not
- returns
Concert introduction()
- returns a string with the band's introduction for this concert
- an introduction is in the form:
"Hello {insert city name here}!!!!!, we are {insert band name here} and we're from {insert hometown here}"
Band play_in_venue(venue, date)
- takes a venue and date (as a string) as arguments, and creates a new concert for the band in that venue on that date
Band all_introductions()
- returns an list of strings representing all the introductions for this band
- each introduction is in the form
"Hello {insert city name here}!!!!!, we are {insert band name here} and we're from {insert hometown here}"
Venue concert_on(date)
- takes a date (string) as argument
- finds and returns the first concert on that date at that venue
- if there is no concert on that date at that venue, returns
None
Venue most_frequent_band()
- returns the band with the most concerts at the venue
You can find the rubric for this assessment here.