yael1019 / ph3-sql-practice-squirrels

Phase 3 Mock Code Challenge - Squirrels

For this challenge, we'll be working with a domain that involves squirrels.

We have one model: Squirrel.

Topics

• Classes and Instances
• Class and Instance Methods
• Variable Scope
• lists and list Methods
• SQL queries
• ORM methods

Instructions

To get started, run pipenv install while inside of this directory.

You will not have to build the tables as they'll be created for you automatically when you first run debug.py.

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.

We've provided you with a tool that you can use to test your code. To use it, run python 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 debug.py file to define variables and create sample instances of your objects. There are no formal tests to run with this code so be sure to test it in the debug.py often.

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.

Deliverables

Write the following methods in the classes in the files provided. Feel free to build out any helper methods if needed.

Initializers and Properties

• Squirrel __init__(self, name, num_acorns, rabid)
  • Squirrel is initialized with a name (string), num_acorns (integer) and rabid (boolean)
• Squirrel property name()
  • Returns the Squirrel's name
  • Name must be a string between 1 and 15 characters

SQL Methods

• Squirrel save()
  • Creates a squirrel in the database if an squirrel with the same id doesn't exist
  • Updates a squirrel in the database if a squirrel with the same id exists
• Squirrel classmethod query_all()
  • Returns a list of squirrel instances based on rows in the database
  • The return value ought to be a list of Squirrel instances
• Squirrel classmethod query_rabid()
  • Returns a list of squirrel instances based on rows in the database
  • The return value ought to be a list of Squirrel instances
  • Only returns Squirrel instances which are rabid

BONUS

• Squirrel classmethod query_most_acorns()
  • Returns the Squirrel in the database with the most acorns
  • Returns the Squirrel as an instance