Recipe_Catalog

SD Project Recipe Catalog

Recipe Generator Services Documentation

This document describes the components found in the Recipe_Generator.Services namespace, which includes service implementations, the database context, model definitions, and interface contracts. The code is designed with debugging in mind (using [DebuggerDisplay] attributes) and includes placeholder implementations for asynchronous methods.

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Table of Contents

• Overview
• RecipeService Class
  • Key Methods
  • Debugger Display
  • Equality Implementation
• IRecipeService Interface
• RecipeDbContext Class
• Recipe Model
• RecipeServiceExtensions Class
• Notes on Placeholder Implementations

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Overview

The Recipe_Generator.Services namespace contains the core services for managing recipes within the Recipe Generator application. The main components include:

• RecipeService: Implements the IRecipeService interface and provides asynchronous CRUD operations. Several method overloads are defined, some of which include placeholder implementations.
• RecipeDbContext: An Entity Framework Core DbContext responsible for managing the Recipes entity set.
• Recipe Model: A simple class that defines a recipe with an Id, Name, and Category.
• IRecipeService Interface: Specifies the contract for recipe management operations.
• RecipeServiceExtensions: A static class that provides additional extension methods related to recipe services.

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RecipeService Class

The RecipeService class implements IRecipeService and IEquatable<RecipeService>. It is decorated with the [DebuggerDisplay] attribute, which uses the GetDebuggerDisplay() method for enhanced debugging.

Key Methods

• AddRecipeAsync(Recipe recipe)
  Adds a recipe asynchronously.
  Placeholder implementation using Task.CompletedTask.

• DeleteRecipeAsync(int id)
  Deletes a recipe asynchronously based on the provided ID.
  Placeholder implementation using Task.CompletedTask.

• GetCategoriesAsync()
  Returns a distinct list of recipe categories asynchronously.
  Placeholder implementation returns an empty list.

• GetRecipeByIdAsync(int id)
  Retrieves a recipe by its ID asynchronously.
  Placeholder implementation returns null.

• GetRecipes(Recipe recipeList)
  Returns a list of recipes based on the provided recipe list.
  Placeholder implementation returns an empty list.

• GetRecipesAsync()
  Retrieves a list of recipes asynchronously.
  Placeholder implementation returns an empty list.

• Overloaded GetRecipesAsync Methods
  Additional overloads accept different parameters (e.g., a list of recipes or combining two lists) and are implemented as placeholders.

• UpdateRecipeAsync(Recipe recipe)
  Updates a recipe asynchronously.
  Placeholder implementation using Task.CompletedTask.

• GetRecipeAsync(int id)
  A convenience method that calls GetRecipeByIdAsync(int id).

Debugger Display

The [DebuggerDisplay] attribute uses the GetDebuggerDisplay() method to return the string representation of the object, aiding in debugging.

private string GetDebuggerDisplay()
{
    return ToString() ?? string.Empty;
}