clintKunz / db-recipe-book

Migrating and Seeding a Database

Recipe Book

Topics

• database modeling.
• migration scripts.
• seeding.
• knex.

Assignment

Design the data model for a recipe book application, then use Knex migrations and seeding functionality to build a SQLite3 database based on the model and seed it with test data.

The requirements for the system, as stated by the client are:

• have a way to manage dishes. A dish is something the client wants to cook like pizza or tacos.
• have a way to manage recipes. A dish can have different recipes for tacos, like tex-mex or granny's. A recipe belongs only to one dish.
• have a way to manage ingredients.
• a recipe could have more than one ingredient and the same ingredient can be used in multiple recipes. Examples are "cup of corn flour" or "gram of butter".
• when saving the ingredients for a recipe capture the quantity required for that ingredient as a floating number.
• have a way to save instructions for cooking a recipe. Instructions will be a series of steps involved in cooking a recipe.
• for some recipes, the order in which the steps are performed matters, please provide a way to specify that order.
• have a way to pick a dish and a recipe and get a shopping list with all the ingredients, and quantity of each, needed to cook the dish.

In addition to the migration and seed scripts write a data access file that exports an object with the following functions:

• getDishes(): should return a list of all dishes in the database.
• addDish(dish): should add the dish to the database and return the id of the new dish.
• getDish(id): should return the dish with the provided id and include a list of the related recipes.
• getRecipes(): should return a list of all recipes in the database including the dish they belong to.
• addRecipe(recipe): should add a recipe to the database and return the id of the new recipe.

Name this file anything you want and place it where it makes the most sense to you.

Stretch Problems

• design and build a RESTful API that makes use of your data access file and publishes endpoints that a client application can use to manage all resources.
• add a method called getRecipe(id) to your data access library that should return the recipe with the provided id. The recipe should include:
  • name of the dish.
  • name of the recipe.
  • the list of ingredients with the quantity.
  • the list of steps in the order they need to be executed.
• follow the same pattern to add the CRUD operations for other entities in the system.
• add units of measure support for the ingredients.
• add a table of unit of measure convertions, so that we can record the quantity for an ingredient using a unit of measure and see the values for other units reading the recipe.
• design and build a front end client for your API.