ajout du AnswerEntityManager

1 year ago · 70f7d6d316
parent b3f2c4de58
commit 70f7d6d316
9 changed files with 275 additions and 73 deletions
--- a/WebApi/DbConnectionLibrairie/MyDbContext.cs
+++ b/WebApi/DbConnectionLibrairie/MyDbContext.cs
@ -1,10 +1,17 @@
-using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.Options;
+using Entities;
+using Microsoft.EntityFrameworkCore;

 namespace DbConnectionLibrairie
 {
    public class MyDbContext : DbContext
    {
+        public DbSet<AnswerEntity> Answers { get; set; }
+        public MyDbContext()
+        { }
+
+        public MyDbContext(DbContextOptions<MyDbContext> contextOptions) :
+            base(contextOptions)
+        { }

        protected override void OnConfiguring(DbContextOptionsBuilder options)
        {
--- a/WebApi/Entities/AnswerEntity.cs
+++ b/WebApi/Entities/AnswerEntity.cs
@ -1,14 +1,38 @@
-namespace Entities
-{
-    public class AnswerEntity
-    {
-        /// <summary>
-        /// define an entity of an answer for a Question with Mutiple Choice
-        /// properties :
-        ///     Id : identifier in the database
-        ///     Content : content of the answer
-        /// </summary>
-        long Id { get; set; }
-        string Content { get; set; } = null!;
-    }
-}
+namespace Entities
+{
+    public class AnswerEntity
+    {
+        /// <summary>
+        /// define an entity of an answer for a Question with Mutiple Choice
+        /// properties :
+        ///     Id : identifier in the database
+        ///     Content : content of the answer
+        /// </summary>
+        public long Id { get; set; }
+        public string Content { get; set; } = null!;
+
+        /// <summary>
+        /// equality protocole
+        /// </summary>
+        /// <param name="obj">an object</param>
+        /// <returns>
+        /// true if the object is an AnswerEntity
+        /// and the two contents are equals
+        /// (we don't care about the id because
+        /// he's set by the database
+        /// </returns>
+        public override bool Equals(object? obj)
+        {
+            return obj != null && obj is AnswerEntity other
+                && other.Content == Content;
+        }
+        /// <summary>
+        /// GetHashCode method
+        /// </summary>
+        /// <returns>base.GetHashCode</returns>
+        public override int GetHashCode()
+        {
+            return base.GetHashCode();
+        }
+    }
+}
--- a/WebApi/EntityManagers/AnswerEntityManager.cs
+++ b/WebApi/EntityManagers/AnswerEntityManager.cs
@ -0,0 +1,60 @@
+using DbConnectionLibrairie;
+using Entities;
+using ManagerInterfaces;
+using Microsoft.EntityFrameworkCore;
+using OrderCriterias;
+
+namespace EntityManagers
+{
+    public class AnswerEntityManager : IAnswerManager<AnswerEntity>
+    {
+        private MyDbContext dbContext;
+
+        public int getNbElement()
+        {
+            return dbContext.Answers.CountAsync().Result;
+        }
+
+        public AnswerEntityManager(MyDbContext dbContext)
+        {
+            this.dbContext = dbContext;
+        }
+
+        public AnswerEntity ajouterAnswer(AnswerEntity answer)
+        {
+            var tmp = dbContext.Answers.Where(a => a.Equals(answer)).FirstOrDefaultAsync().Result;
+            if (tmp != null) return tmp;
+            dbContext.Answers.Add(answer);
+            dbContext.SaveChangesAsync();
+            return dbContext.Answers.Where(a => a.Equals(answer)).FirstAsync().Result;
+        }
+
+        public AnswerEntity? getAnswer(long id)
+        {
+            return dbContext.Answers.Where(a => a.Id == id).FirstOrDefaultAsync().Result;
+        }
+
+        public IEnumerable<AnswerEntity> getAnswers(int nb, int count, AnswerOrderCriteria orderCriteria = AnswerOrderCriteria.ById)
+        {
+            return dbContext.Answers.OrderBy(a => a.Id).Skip((nb - 1) * count).Take(count).ToListAsync().Result;
+        }
+
+        public AnswerEntity? modifierAnswer(long id, AnswerEntity answer)
+        {
+            var tmp = dbContext.Answers.Where(a => a.Id == id).FirstOrDefaultAsync().Result;
+            if (tmp == null) return null;
+            tmp.Content = answer.Content;
+            dbContext.SaveChangesAsync();
+            return tmp;
+        }
+
+        public AnswerEntity? supprimerAnswer(long id)
+        {
+            var tmp = dbContext.Answers.Where(a => a.Id == id).FirstOrDefaultAsync().Result;
+            if (tmp == null) return null;
+            dbContext.Answers.Remove(tmp);
+            dbContext.SaveChangesAsync();
+            return tmp;
+        }
+    }
+}
--- a/WebApi/EntityManagers/EntityManagers.csproj
+++ b/WebApi/EntityManagers/EntityManagers.csproj
@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\DbConnectionLibrairie\DbConnectionLibrairie.csproj" />
+    <ProjectReference Include="..\Entities\Entities.csproj" />
+    <ProjectReference Include="..\ManagerInterfaces\ManagerInterfaces.csproj" />
+    <ProjectReference Include="..\OrderCriterias\OrderCriterias.csproj" />
+  </ItemGroup>
+
+</Project>
--- a/WebApi/ManagerInterfaces/IAnswerManager.cs
+++ b/WebApi/ManagerInterfaces/IAnswerManager.cs
@ -1,7 +1,66 @@
-namespace ManagerInterfaces
+using OrderCriterias;
+
+namespace ManagerInterfaces
 {
+    /// <summary>
+    /// All methods to handle answers
+    /// </summary>
+    /// <typeparam name="T">a DTO or Entity type answer</typeparam>
    public interface IAnswerManager<T>
    {
-        public T getAnswers(int nb, int count);
+        /// <summary>
+        /// get the number of T element
+        /// </summary>
+        /// <returns>the number of T element</returns>
+        abstract int getNbElement();
+        /// <summary>
+        /// get a part of all answers
+        /// </summary>
+        /// <param name="nb">the actual page</param>
+        /// <param name="count">number of T element in a page</param>
+        /// <param name="orderCriteria">the order criteria</param>
+        /// <returns>
+        /// all T element of the database for
+        /// this page (or null if (nb-1)*count
+        /// is outside boundaries (0, getNbElement()-1)
+        /// </returns>
+        public IEnumerable<T>? getAnswers(int nb, int count, AnswerOrderCriteria orderCriteria = AnswerOrderCriteria.ById);
+        /// <summary>
+        /// get a T element with an id
+        /// </summary>
+        /// <param name="id">the id of the T element</param>
+        /// <returns>
+        /// the T element that corresponde to
+        /// the id or null if there isn't any
+        /// </returns>
+        public T? getAnswer(long id);
+        /// <summary>
+        /// modified a T element with an id
+        /// </summary>
+        /// <param name="id">the id of the T element</param>
+        /// <param name="answer">an answer that contains all modified properties</param>
+        /// <returns>
+        /// the T element (modified) that corresponde
+        /// to the id or null if there isn't any
+        /// </returns>
+        public T? modifierAnswer(long id, T answer);
+        /// <summary>
+        /// delete a T element with an id
+        /// </summary>
+        /// <param name="id">the id of the T element</param>
+        /// <returns>
+        /// the T element deleted that corresponde
+        /// to the id or null if there isn't any
+        /// </returns>
+        public T? supprimerAnswer(long id);
+        /// <summary>
+        /// add a T element
+        /// </summary>
+        /// <param name="answer">the answer to add</param>
+        /// <returns>
+        /// the T element (modified) that corresponde
+        /// to the id or null if there isn't any
+        /// </returns>
+        public T ajouterAnswer(T answer);
    }
 }
--- a/WebApi/ManagerInterfaces/ManagerInterfaces.csproj
+++ b/WebApi/ManagerInterfaces/ManagerInterfaces.csproj
@ -6,4 +6,8 @@
    <Nullable>enable</Nullable>
  </PropertyGroup>

+  <ItemGroup>
+    <ProjectReference Include="..\OrderCriterias\OrderCriterias.csproj" />
+  </ItemGroup>
+
 </Project>
--- a/WebApi/OrderCriterias/AnswerOrderCriteria.cs
+++ b/WebApi/OrderCriterias/AnswerOrderCriteria.cs
@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrderCriterias
+{
+    /// <summary>
+    /// answer order criteria
+    /// </summary>
+    public enum AnswerOrderCriteria
+    {
+        ById = 0,
+        ByContent = 1
+    }
+}
--- a/WebApi/OrderCriterias/OrderCriterias.csproj
+++ b/WebApi/OrderCriterias/OrderCriterias.csproj
@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
--- a/WebApi/WebApi.sln
+++ b/WebApi/WebApi.sln
@ -1,55 +1,61 @@
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