ajout d'un option dans UserDbContext pour avoir plus de détaille sur les logs. Ajout de GetItems

API_SQLuedo/API/API.csproj

@@ -24,6 +24,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <ProjectReference Include="..\ModelToEntity\ModelToEntity.csproj" />
     <ProjectReference Include="..\Services\Services.csproj" />
   </ItemGroup>
 

API_SQLuedo/API/Controllers/InquiriesController.cs

@@ -1,65 +0,0 @@
-using Microsoft.AspNetCore.Authorization;
-using Microsoft.AspNetCore.Mvc;
-using Model.DTO;
-using Services;
-
-namespace API.Controllers
-{
-    [Route("api/[controller]")]
-    [Authorize]
-    [ApiController]
-    public class InquiriesController : Controller
-    {
-        private IDataService _inquiryDataService;
-
-        private readonly ILogger<UserController> _logger;
-
-        public InquiriesController(IDataService inquiryDataService)
-        {
-            _inquiryDataService = inquiryDataService;
-        }
-
-        [HttpGet("inquiries/{page}/{number}")]
-        public IActionResult GetInquiries(int page, int number)
-        {
-            var nbInquiry = _inquiryDataService.GetInquiries(page, number).Count();
-            if (nbInquiry == 0)
-            {
-                _logger.LogError("[ERREUR] Aucune enquête trouvé.");
-                return StatusCode(204);
-            }
-            _logger.LogInformation("[INFORMATION] {nb} Enquête(s) trouvée(s)", nbInquiry);
-            return Ok(_inquiryDataService.GetInquiries(page, number));
-        }
-
-        [HttpGet("inquiry/id/{id}")]
-        public IActionResult GetInquiryById(int id)
-        {
-            try
-            {
-                _logger.LogInformation("[INFORMATION] Enquête avec l'id {id} a été trouvé.", id);
-                return Ok(_inquiryDataService.GetInquiryById(id));
-            }
-            catch (ArgumentException)
-            {
-                _logger.LogError("[ERREUR] Aucune enquête trouvée avec l'id {id}.", id);
-                return NotFound();
-            }
-        }
-
-        [HttpGet("inquiry/title/{title}")]
-        public IActionResult GetInquiryByTitle(string title)
-        {
-            try
-            {
-                _logger.LogInformation("[INFORMATION] Enquête avec le titre {title} a été trouvé.", title);
-                return Ok(_inquiryDataService.GetInquiryByTitle(title));
-            }
-            catch (ArgumentException)
-            {
-                _logger.LogError("[ERREUR] Aucune enquête trouvée avec le titre {title}.", title);
-                return NotFound();
-            }
-        }
-    }
-}

API_SQLuedo/API/Controllers/InquiryController.cs

@@ -0,0 +1,115 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Model.DTO;
+using Services;
+
+namespace API.Controllers
+{
+    [Route("api/[controller]")]
+    [Authorize]
+    [ApiController]
+    public class InquiryController : Controller
+    {
+        private IDataService<InquiryDTO> _dataService;
+
+        private readonly ILogger<UserController> _logger;
+
+        public InquiryController(IDataService<InquiryDTO> dataService)
+        {
+            _dataService = _dataService;
+        }
+
+        [HttpGet("inquiries/{page}/{number}")]
+        public IActionResult GetInquiries(int page, int number)
+        {
+            var nbInquiry = _dataService.InquiryDataService.GetInquiries(page, number).Count();
+            if (nbInquiry == 0)
+            {
+                _logger.LogError("[ERREUR] Aucune enquête trouvée.");
+                return StatusCode(204);
+            }
+            _logger.LogInformation("[INFORMATION] {nb} Enquête(s) trouvée(s)", nbInquiry);
+            return Ok(_dataService.InquiryDataService.GetInquiries(page, number));
+        }
+
+        [HttpGet("inquiry/id/{id}")]
+        public IActionResult GetInquiryById(int id)
+        {
+            try
+            {
+                _logger.LogInformation("[INFORMATION] L'enquête avec l'id {id} a été trouvé.", id);
+                return Ok(_dataService.InquiryDataService.GetInquiryById(id));
+            }
+            catch (ArgumentException)
+            {
+                _logger.LogError("[ERREUR] Aucune enquête trouvée avec l'id {id}.", id);
+                return NotFound();
+            }
+        }
+
+        [HttpGet("inquiry/title/{title}")]
+        public IActionResult GetInquiryByTitle(string title)
+        {
+            try
+            {
+                _logger.LogInformation("[INFORMATION] L'enquête avec le titre {title} a été trouvé.", title);
+                return Ok(_dataService.InquiryDataService.GetInquiryByTitle(title));
+            }
+            catch (ArgumentException)
+            {
+                _logger.LogError("[ERREUR] Aucune enquête trouvée avec le titre {title}.", title);
+                return NotFound();
+            }
+        }
+
+        [HttpDelete]
+        public IActionResult DeleteInquiry(int id)
+        {
+            var success = _dataService.InquiryDataService.DeleteInquiry(id);
+            if (success)
+            {
+                _logger.LogInformation("[INFORMATION] L'enquête avec l'id {id} a été supprimé.", id);
+                return Ok(_dataService.InquiryDataService.DeleteInquiry(id));
+            }
+            else
+            {
+                _logger.LogError("[ERREUR] Aucune enquête trouvée avec l'id {id}.", id);
+                return NotFound();
+            }
+
+        }
+
+        [HttpPost]
+        public IActionResult CreateInquiry([FromBody] InquiryDTO dto)
+        {
+            if (dto.Title == null || dto.Description == null || dto.Database == null || dto.InquiryTable == null)
+            {
+                return BadRequest();
+            }
+            _logger.LogInformation("[INFORMATION] Une enquête a été créé : title - {title}, description - {description}, isUser - {isUser}, database - {database}, inquiryTable - {inquiryTable}", dto.Title, dto.Description, dto.IsUser, dto.Database, dto.InquiryTable);
+            return Created(nameof(GetInquiries), _dataService.InquiryDataService.CreateInquiry(dto.Title, dto.Description, dto.IsUser, dto.Database, dto.InquiryTable));
+        }
+
+        [HttpPut]
+        public IActionResult UpdateInquiry(int id, [FromBody] InquiryDTO inquiryDTO)
+        {
+            if (id != inquiryDTO.Id)
+            {
+                _logger.LogError("[ERREUR] Problème ID - La mise à jour de l'enquête avec l'id {id} a échouée.", id);
+                return BadRequest();
+            }
+            if (!ModelState.IsValid)
+            {
+                _logger.LogError("[ERREUR] Problème controlleur - La mise à jour de l'enquête avec l'id {id} a échouée.", id);
+                return BadRequest();
+            }
+            if (inquiryDTO != null)
+            {
+                _logger.LogInformation("[INFORMATION] La mise à jour de l'enquête avec l'id {id} a été effectuée", id);
+                return Ok(_dataService.InquiryDataService.UpdateInquiry(id, inquiryDTO));
+            }
+            _logger.LogError("[ERREUR] Aucune enquête trouvée avec l'id {id}.", id);
+            return NotFound();
+        }
+    }
+}

API_SQLuedo/API/Controllers/LessonController.cs

@@ -0,0 +1,115 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Model.DTO;
+using Services;
+
+namespace API.Controllers
+{
+    [Route("api/[controller]")]
+    [Authorize]
+    [ApiController]
+    public class LessonController : Controller
+    {
+        private IDataService<LessonDTO> _dataService;
+
+        private readonly ILogger<UserController> _logger;
+
+        public LessonController(IDataService<LessonDTO> dataService)
+        {
+            _dataService = dataService;
+        }
+
+        [HttpGet("lessons/{page}/{number}")]
+        public IActionResult GetLessons(int page, int number)
+        {
+            var nbLesson = _dataService.LessonDataService.GetLessons(page, number).Count();
+            if (nbLesson == 0)
+            {
+                _logger.LogError("[ERREUR] Aucune leçon trouvée.");
+                return StatusCode(204);
+            }
+            _logger.LogInformation("[INFORMATION] {nb} Leçon(s) trouvée(s)", nbLesson);
+            return Ok(_dataService.LessonDataService.GetLessons(page, number));
+        }
+
+        [HttpGet("lesson/id/{id}")]
+        public IActionResult GetLessonById(int id)
+        {
+            try
+            {
+                _logger.LogInformation("[INFORMATION] La leçon avec l'id {id} a été trouvé.", id);
+                return Ok(_dataService.LessonDataService.GetLessonById(id));
+            }
+            catch (ArgumentException)
+            {
+                _logger.LogError("[ERREUR] Aucune leçon trouvée avec l'id {id}.", id);
+                return NotFound();
+            }
+        }
+
+        [HttpGet("lesson/title/{title}")]
+        public IActionResult GetLessonByTitle(string title)
+        {
+            try
+            {
+                _logger.LogInformation("[INFORMATION] La leçon avec le titre {title} a été trouvé.", title);
+                return Ok(_dataService.LessonDataService.GetLessonByTitle(title));
+            }
+            catch (ArgumentException)
+            {
+                _logger.LogError("[ERREUR] Aucune leçon trouvée avec le titre {title}.", title);
+                return NotFound();
+            }
+        }
+
+        [HttpDelete]
+        public IActionResult DeleteLesson(int id)
+        {
+            var success = _dataService.LessonDataService.DeleteLesson(id);
+            if (success)
+            {
+                _logger.LogInformation("[INFORMATION] La leçon avec l'id {id} a été supprimé.", id);
+                return Ok(_dataService.LessonDataService.DeleteLesson(id));
+            }
+            else
+            {
+                _logger.LogError("[ERREUR] Aucune leçon trouvée avec l'id {id}.", id);
+                return NotFound();
+            }
+
+        }
+
+        [HttpPost]
+        public IActionResult CreateLesson([FromBody] LessonDTO dto)
+        {
+            if (dto.Title == null || dto.LastPublisher == null)
+            {
+                return BadRequest();
+            }
+            _logger.LogInformation("[INFORMATION] Une leçon a été créé : title - {title}, lastPublisher - {publisher}, lastEdit - {lastEdit}", dto.Title, dto.LastPublisher, dto.LastEdit);
+            return Created(nameof(GetLessons), _dataService.LessonDataService.CreateLesson(dto.Title, dto.LastPublisher, dto.LastEdit));
+        }
+
+        [HttpPut]
+        public IActionResult UpdateLesson(int id, [FromBody] LessonDTO lessonDTO)
+        {
+            if (id != lessonDTO.Id)
+            {
+                _logger.LogError("[ERREUR] Problème ID - La mise à jour de la leçon avec l'id {id} a échouée.", id);
+                return BadRequest();
+            }
+            if (!ModelState.IsValid)
+            {
+                _logger.LogError("[ERREUR] Problème controlleur - La mise à jour de la leçon avec l'id {id} a échouée.", id);
+                return BadRequest();
+            }
+            if (lessonDTO != null)
+            {
+                _logger.LogInformation("[INFORMATION] La mise à jour de la leçon avec l'id {id} a été effectuée", id);
+                return Ok(_dataService.LessonDataService.UpdateLesson(id, lessonDTO));
+            }
+            _logger.LogError("[ERREUR] Aucune leçon trouvée avec l'id {id}.", id);
+            return NotFound();
+        }
+    }
+}

API_SQLuedo/API/Controllers/UserController.cs

@@ -1,9 +1,12 @@
 using DbContextLib;
+using Entities.SQLudeoDB;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
+using Model;
 using Model.Business;
 using Model.DTO;
+using Model.Mappers;
 using Services;
 
 namespace API.Controllers
@@ -13,36 +16,36 @@ namespace API.Controllers
     [ApiController]
     public class UserController : Controller
     {
-        private IDataService _userDataService;
+        private IDataService<UserDTO?> _dataService;
 
         private readonly ILogger<UserController> _logger;
 
-        public UserController(IDataService userDataService, ILogger<UserController> logger)
+        public UserController(IDataService<UserDTO?> dataService, ILogger<UserController> logger)
         {
-            _userDataService = userDataService;
+            _dataService = dataService;
             _logger = logger;
         }
 
         [HttpGet("users/{page}/{number}")]
-        public IActionResult GetUsers(int page, int number) 
+        public async Task<IActionResult> GetUsers(int page, int number) 
         {
-            var nbUser = _userDataService.GetUsers(page, number).Count();
+            var nbUser = (await _dataService.UserService.GetUsers(page, number)).ToList().Count();
             if(nbUser == 0) 
             {
                 _logger.LogError("[ERREUR] Aucun utilisateur trouvé.");
                 return StatusCode(204);
             }
             _logger.LogInformation("[INFORMATION] {nb} Utilisateur(s) trouvé(s)", nbUser);
-            return Ok(_userDataService.GetUsers(page, number));
+            return Ok(_dataService.UserService.GetItems<UserEntity>(page, number));
         }
 
         [HttpGet("user/id/{id}")]
-        public IActionResult GetUserById(int id)
+        public async Task<IActionResult> GetUserById(int id)
         {
             try
             {
                 _logger.LogInformation("[INFORMATION] Utilisateur avec l'id {id} a été trouvé.", id);
-                return Ok(_userDataService.GetUserById(id));
+                return Ok(_dataService.UserService.GetItems<UserEntity>(1, 1, UserProperty.Id.ToString(),id));
             } catch (ArgumentException) 
             {
                 _logger.LogError("[ERREUR] Aucun utilisateur trouvé avec l'id {id}.", id);
@@ -51,12 +54,12 @@ namespace API.Controllers
         }
 
         [HttpGet("user/username/{username}")]
-        public IActionResult GetUserByUsername(string username)
+        public async Task<IActionResult> GetUserByUsername(string username)
         {
             try
             {
                 _logger.LogInformation("[INFORMATION] Utilisateur avec l'username {username} a été trouvé.", username);
-                return Ok(_userDataService.GetUserByUsername(username));
+                return Ok(_dataService.UserService.GetItems<UserEntity>(1, 1,UserProperty.Username.ToString(), username));
             }catch (ArgumentException) 
             {
                 _logger.LogError("[ERREUR] Aucun utilisateur trouvé avec l'username {username}.", username);
@@ -66,13 +69,13 @@ namespace API.Controllers
         }
 
         [HttpDelete]
-        public IActionResult DeleteUser(int id)
+        public async Task<IActionResult> DeleteUser(int id)
         {
-            var success = _userDataService.DeleteUser(id);
+            var success = await _dataService.UserService.DeleteItem<UserEntity>(id);
             if(success)
             {
                 _logger.LogInformation("[INFORMATION] L'utilisateur avec l'id {id} a été supprimé.", id);
-                return Ok(_userDataService.DeleteUser(id));
+                return Ok(_dataService.UserService.DeleteUser(id));
             } else
             {
                 _logger.LogError("[ERREUR] Aucun utilisateur trouvé avec l'id {id}.", id);
@@ -82,19 +85,19 @@ namespace API.Controllers
         }
 
         [HttpPost]
-        public IActionResult CreateUser([FromBody]UserDTO dto)
+        public async Task<IActionResult> CreateUser([FromBody]UserDTO dto)
         {
             if (dto.Username == null || dto.Password == null || dto.Email == null)
             {
                 return BadRequest();
             }
-            // return Ok(_userDataService.CreateUser(username, password, email, isAdmin));
+
             _logger.LogInformation("[INFORMATION] Un utilisateur a été créé : username - {username}, password - {password}, email - {email}, isAdmin - {isAdmin}", dto.Username, dto.Password, dto.Email, dto.IsAdmin);
-            return Created(nameof(GetUsers), _userDataService.CreateUser(dto.Username, dto.Password, dto.Email, dto.IsAdmin));
+            return Created(nameof(GetUsers), _dataService.UserService.AddItem(dto.FromDTOToModel().FromModelToEntity()));
         }
 
         [HttpPut]
-        public IActionResult UpdateUser(int id, [FromBody] UserDTO userDTO)
+        public async Task<IActionResult> UpdateUser(int id, [FromBody] UserDTO userDTO)
         {
             if(id !=  userDTO.Id)
             {
@@ -108,8 +111,8 @@ namespace API.Controllers
             }
             if(userDTO != null) 
             {
-                _logger.LogInformation("[INFORMATION] La mise à jour de l'utilsiateur avec l'id {id} a été effectuée", id);
+                _logger.LogInformation("[INFORMATION] La mise à jour de l'utilisateur avec l'id {id} a été effectuée", id);
-                return Ok(_userDataService.UpdateUser(id, userDTO));
+                return Ok(_dataService.UserService.UpdateItem<UserEntity, UserDTO>(id, userDTO));
             }
             _logger.LogError("[ERREUR] Aucun utilisateur trouvé avec l'id {id}.", id);
             return NotFound(); 

API_SQLuedo/API/Program.cs

@@ -3,7 +3,12 @@ using DbContextLib;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.OpenApi.Models;
+using Model.DTO;
+using Model.Business;
+using ModelToEntity;
 using Services;
+using System.Data.Common;
+using Microsoft.Extensions.Options;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -13,7 +18,9 @@ builder.Services.AddControllers();
 // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
 builder.Services.AddEndpointsApiExplorer();
 builder.Services.AddSwaggerGen();
-builder.Services.AddScoped<IDataService, UserDataService>();
+builder.Services.AddScoped<IUserDataService<UserDTO>, UserDataService>();
+builder.Services.AddScoped<IDataService<UserDTO?>, DataService>();
+builder.Services.AddScoped<IUserDataService<User>, DbDataManager>();
 builder.Services.AddDbContext<DbContext, UserDbContext>();
 builder.Services.AddDbContext<WebAPIDbContext>(options => options.UseInMemoryDatabase("appDb"));
 builder.Services.AddIdentityApiEndpoints<IdentityUser>().AddEntityFrameworkStores<WebAPIDbContext>();

API_SQLuedo/API_SQLuedo.sln

@@ -3,19 +3,23 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.8.34408.163
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "API", "API\API.csproj", "{65F4AE69-E1CA-4B87-BDF0-946A37351BD1}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "API", "API\API.csproj", "{65F4AE69-E1CA-4B87-BDF0-946A37351BD1}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Entities", "EntityFramework\Entities.csproj", "{6D079CDA-C000-4833-98A0-D07D153EA264}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Entities", "EntityFramework\Entities.csproj", "{6D079CDA-C000-4833-98A0-D07D153EA264}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Model", "Model\Model.csproj", "{ADCC427D-A3CD-431C-A90B-F9369C4584E8}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Model", "Model\Model.csproj", "{ADCC427D-A3CD-431C-A90B-F9369C4584E8}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TestAPI", "TestAPI\TestAPI.csproj", "{17025B90-8B2A-49E9-97D3-1A84A208DF50}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TestAPI", "TestAPI\TestAPI.csproj", "{17025B90-8B2A-49E9-97D3-1A84A208DF50}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TestEF", "TestEF\TestEF.csproj", "{54FAD8AF-7601-4C54-8406-D81476A8D7D7}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TestEF", "TestEF\TestEF.csproj", "{54FAD8AF-7601-4C54-8406-D81476A8D7D7}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DbContextLib", "DbContextLib\DbContextLib.csproj", "{BDCB3BFD-B744-4BC0-BCFC-78E08600203A}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DbContextLib", "DbContextLib\DbContextLib.csproj", "{BDCB3BFD-B744-4BC0-BCFC-78E08600203A}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Services", "Services\Services.csproj", "{9BD3DCBA-AFD8-47FA-B07C-613B53E63968}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Services", "Services\Services.csproj", "{9BD3DCBA-AFD8-47FA-B07C-613B53E63968}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ModelToEntity", "ModelToEntity\ModelToEntity.csproj", "{8F53CC62-94B3-4F9D-ABF1-F7307A6F27C0}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Shared", "Shared\Shared.csproj", "{B28FD539-6FE4-4B13-9C1F-D88F4771CC69}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -51,6 +55,14 @@ Global
 		{9BD3DCBA-AFD8-47FA-B07C-613B53E63968}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9BD3DCBA-AFD8-47FA-B07C-613B53E63968}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{9BD3DCBA-AFD8-47FA-B07C-613B53E63968}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8F53CC62-94B3-4F9D-ABF1-F7307A6F27C0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8F53CC62-94B3-4F9D-ABF1-F7307A6F27C0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8F53CC62-94B3-4F9D-ABF1-F7307A6F27C0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8F53CC62-94B3-4F9D-ABF1-F7307A6F27C0}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B28FD539-6FE4-4B13-9C1F-D88F4771CC69}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B28FD539-6FE4-4B13-9C1F-D88F4771CC69}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B28FD539-6FE4-4B13-9C1F-D88F4771CC69}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B28FD539-6FE4-4B13-9C1F-D88F4771CC69}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

API_SQLuedo/DbContextLib/UserDbContext.cs

@@ -20,11 +20,12 @@ namespace DbContextLib
         public DbSet<SuccessEntity> Success { get; set; }
         public DbSet<NotepadEntity> Notepad { get; set; }
         public UserDbContext(DbContextOptions<UserDbContext> options) : base(options) { }
+        public UserDbContext() : base() { }
         protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
         {
             if (!optionsBuilder.IsConfigured)
             {
-                optionsBuilder.UseNpgsql("Host=localhost;Database=SQLuedo;Username=admin;Password=motdepasse");
+                optionsBuilder.UseNpgsql("Host=localhost;Database=SQLuedo;Username=admin;Password=motdepasse").EnableSensitiveDataLogging();
             }
             base.OnConfiguring(optionsBuilder);
         }
@@ -67,6 +68,7 @@ namespace DbContextLib
             modelBuilder.Entity<ContentLessonEntity>().HasKey(c => c.LessonPartId);
             modelBuilder.Entity<SuccessEntity>().HasKey(s => s.UserId);
             modelBuilder.Entity<SuccessEntity>().HasKey(s => s.InquiryId);
+            modelBuilder.Entity<InquiryEntity>().HasKey(s => s.Id);
             base.OnModelCreating(modelBuilder);
         }
     }

API_SQLuedo/EntityFramework/SQLudeoDB/InquiryEntity.cs

@@ -25,5 +25,14 @@ namespace Entities.SQLudeoDB
             Database = database;
             InquiryTable = inquiryTable;
         }
+
+        public InquiryEntity(string title, string description, bool isUser, InquiryTableEntity database, SolutionEntity inquiryTable)
+        {
+            Title = title;
+            Description = description;
+            IsUser = isUser;
+            Database = database;
+            InquiryTable = inquiryTable;
+        }
     }
 }

API_SQLuedo/EntityFramework/SQLudeoDB/LessonEntity.cs

@@ -9,22 +9,22 @@ namespace Entities.SQLudeoDB
     public class LessonEntity
     {
         public int Id { get; set; }
-        public string Titla { get; set; }
+        public string Title { get; set; }
         public string LastPublisher { get; set; }
         public DateOnly LastEdit { get; set; }
 
         public LessonEntity() { }
-        public LessonEntity(int id, string titla, string lastPublisher, DateOnly lastEdit)
+        public LessonEntity(int id, string title, string lastPublisher, DateOnly lastEdit)
         {
             Id = id;
-            Titla = titla;
+            Title = title;
             LastPublisher = lastPublisher;
             LastEdit = lastEdit;
         }
 
-        public LessonEntity(string titla, string lastPublisher, DateOnly lastEdit)
+        public LessonEntity(string title, string lastPublisher, DateOnly lastEdit)
         {
-            Titla = titla;
+            Title = title;
             LastPublisher = lastPublisher;
             LastEdit = lastEdit;
         }

API_SQLuedo/Model/Business/Inquiry.cs

@@ -1,4 +1,5 @@
-using System;
+using Entities.SQLudeoDB;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -8,5 +9,22 @@ namespace Model.Business
 {
     public class Inquiry
     {
+        public int Id { get; set; }
+        public string Title { get; set; }
+        public string Description { get; set; }
+        public bool IsUser { get; set; }
+        public InquiryTableEntity Database { get; set; }
+        public SolutionEntity InquiryTable { get; set; }
+        public Inquiry() { }
+
+        public Inquiry(int id, string title, string description, bool isUser, InquiryTableEntity database, SolutionEntity inquiryTable)
+        {
+            Id = id;
+            Title = title;
+            Description = description;
+            IsUser = isUser;
+            Database = database;
+            InquiryTable = inquiryTable;
+        }
     }
 }

API_SQLuedo/Model/Business/Lesson.cs

@@ -0,0 +1,26 @@
+using Entities.SQLudeoDB;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Model.Business
+{
+    public class Lesson
+    {
+        public int Id { get; set; }
+        public string Title { get; set; }
+        public string LastPublisher { get; set; }
+        public DateOnly LastEdit { get; set; }
+
+        public Lesson() { }
+        public Lesson(int id, string title, string lastPublisher, DateOnly lastEdit)
+        {
+            Id = id;
+            Title = title;
+            LastPublisher = lastPublisher;
+            LastEdit = lastEdit;
+        }
+    }
+}

API_SQLuedo/Model/DTO/InquiryDTO.cs

@@ -1,4 +1,5 @@
-using System;
+using Entities.SQLudeoDB;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -8,5 +9,22 @@ namespace Model.DTO
 {
     public class InquiryDTO
     {
+        public int Id { get; set; }
+        public string Title { get; set; }
+        public string Description { get; set; }
+        public bool IsUser { get; set; }
+        public InquiryTableEntity Database { get; set; }
+        public SolutionEntity InquiryTable { get; set; }
+        public InquiryDTO() { }
+
+        public InquiryDTO(int id, string title, string description, bool isUser, InquiryTableEntity database, SolutionEntity inquiryTable)
+        {
+            Id = id;
+            Title = title;
+            Description = description;
+            IsUser = isUser;
+            Database = database;
+            InquiryTable = inquiryTable;
+        }
     }
 }

API_SQLuedo/Model/DTO/LessonDTO.cs

@@ -0,0 +1,26 @@
+using Entities.SQLudeoDB;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Model.DTO
+{
+    public class LessonDTO
+    {
+        public int Id { get; set; }
+        public string Title { get; set; }
+        public string LastPublisher { get; set; }
+        public DateOnly LastEdit { get; set; }
+
+        public LessonDTO() { }
+        public LessonDTO(int id, string title, string lastPublisher, DateOnly lastEdit)
+        {
+            Id = id;
+            Title = title;
+            LastPublisher = lastPublisher;
+            LastEdit = lastEdit;
+        }
+    }
+}

API_SQLuedo/Model/Mappers/InquiryMapper.cs

@@ -1,4 +1,7 @@
-using System;
+using Entities.SQLudeoDB;
+using Model.Business;
+using Model.DTO;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -6,26 +9,26 @@ using System.Threading.Tasks;
 
 namespace Model.Mappers
 {
-    public class InquiryMapper
+    public static class InquiryMapper
     {
-        public object FromDTOToModel()
+        public static Inquiry FromDTOToModel(this InquiryDTO dto)
         {
-            throw new NotImplementedException();
+            return new Inquiry(dto.Id, dto.Title, dto.Description, dto.IsUser, dto.Database, dto.InquiryTable);
         }
 
-        public object FromEntityToModel()
+        public static Inquiry FromEntityToModel(this InquiryEntity entity)
         {
-            throw new NotImplementedException();
+            return new Inquiry(entity.Id, entity.Title, entity.Description, entity.IsUser, entity.Database, entity.InquiryTable);
         }
 
-        public object FromModelToDTO()
+        public static InquiryDTO FromModelToDTO(this Inquiry inquiry)
         {
-            throw new NotImplementedException();
+            return new InquiryDTO(inquiry.Id, inquiry.Title, inquiry.Description, inquiry.IsUser, inquiry.Database, inquiry.InquiryTable);
         }
 
-        public object FromModelToEntity()
+        public static InquiryEntity FromModelToEntity(this Inquiry inquiry)
         {
-            throw new NotImplementedException();
+            return new InquiryEntity(inquiry.Id, inquiry.Title, inquiry.Description, inquiry.IsUser, inquiry.Database, inquiry.InquiryTable);
         }
     }
 }

API_SQLuedo/Model/Mappers/LessonMapper.cs

@@ -0,0 +1,29 @@
+using Entities.SQLudeoDB;
+using Model.Business;
+using Model.DTO;
+
+namespace Model.Mappers
+{
+    public static class LessonMapper
+    {
+        public static Lesson FromDTOToModel(this LessonDTO dto)
+        {
+            return new Lesson(dto.Id, dto.Title, dto.LastPublisher, dto.LastEdit);
+        }
+
+        public static Lesson FromEntityToModel(this LessonEntity entity)
+        {
+            return new Lesson(entity.Id, entity.Title, entity.LastPublisher, entity.LastEdit);
+        }
+
+        public static LessonDTO FromModelToDTO(this Lesson lesson)
+        {
+            return new LessonDTO(lesson.Id, lesson.Title, lesson.LastPublisher, lesson.LastEdit);
+        }
+
+        public static LessonEntity FromModelToEntity(this Lesson lesson)
+        {
+            return new LessonEntity(lesson.Id, lesson.Title, lesson.LastPublisher, lesson.LastEdit);
+        }
+    }
+}

API_SQLuedo/Model/UserProperty.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Model
+{
+    public enum UserProperty
+    {
+        Id,
+        Username,
+        Password,
+        Email,
+        IsAdmin
+
+    }
+}

API_SQLuedo/ModelToEntity/DbDataManager.cs

@@ -0,0 +1,198 @@
+using Entities.SQLudeoDB;
+using Microsoft.EntityFrameworkCore;
+using Model.DTO;
+using Services;
+using DbContextLib;
+using Model.Business;
+using Model;
+using Model.Mappers;
+using System;
+using Microsoft.AspNetCore.Identity;
+using System.Runtime.InteropServices.ObjectiveC;
+
+namespace ModelToEntity
+{
+    public class DbDataManager : IUserDataService<User?>
+    {
+        public async Task<User> GetUserById(int id)
+        {
+            using(var context = new UserDbContext())
+            {
+                var userEntity = context.Users.FirstOrDefault(u => u.Id == id);
+                if(userEntity == null)
+                {
+                    throw new ArgumentException("Impossible de trouver l'utilisateur", nameof(id));
+                }
+                return await Task.FromResult(userEntity.FromEntityToModel());
+            }
+
+        }
+
+        public async Task<User> GetUserByUsername(string username)
+        {
+            using (var context = new UserDbContext())
+            {
+                var userEntity = context.Users.FirstOrDefault(u => u.Username == username);
+                if (userEntity == null)
+                {
+                    throw new ArgumentException("Impossible de trouver l'utilisateur", nameof(username));
+                }
+
+                return await Task.FromResult(userEntity.FromEntityToModel());
+            }
+        }
+
+        public async Task<IEnumerable<User>> GetUsers(int page, int number)
+        {
+            using (var context = new UserDbContext())
+            {
+                return await Task.FromResult(context.Users.Skip((page - 1) * number).Take(number).ToList().Select(u => u.FromEntityToModel()));
+            }
+        }
+
+        public Task<bool> DeleteUser(int id)
+        {
+            using (var context = new UserDbContext()) {
+            var userEntity = context.Users.FirstOrDefault(u => u.Id == id);
+            if (userEntity == null)
+            {
+                return Task.FromResult(false);
+            }
+            context.Users.Remove(userEntity);
+            context.SaveChangesAsync();
+        }
+            return Task.FromResult(true);
+        }
+
+        public async Task<User> UpdateUser(int id, UserDTO user)
+        {
+            using (var context = new UserDbContext())
+            {
+                var updatingUser = context.Users.FirstOrDefault(u => u.Id == id);
+                if (updatingUser == null)
+                {
+                    throw new ArgumentException("Impossible de trouver l'utilisateur", nameof(id));
+                }
+                updatingUser.Username = user.Username;
+                updatingUser.Password = user.Password;
+                updatingUser.Email = user.Email;
+                updatingUser.IsAdmin = user.IsAdmin;
+                // Permet d'indiquer en Db que l'entité a été modifiée.
+                context.Entry(updatingUser).State = EntityState.Modified;
+                context.SaveChangesAsync();
+                return await Task.FromResult(updatingUser.FromEntityToModel());
+            }
+        }
+
+        public async Task<User> CreateUser(string username, string password, string email, bool isAdmin)
+        {
+            using (var context = new UserDbContext())
+            {
+                var newUserEntity = new UserDTO
+                {
+                    Username = username,
+                    Password = password,
+                    Email = email,
+                    IsAdmin = isAdmin
+                };
+                context.Users.Add(newUserEntity.FromDTOToModel().FromModelToEntity());
+                context.SaveChanges();
+
+                return  await Task.FromResult(newUserEntity.FromDTOToModel());
+            }
+        }
+
+        public IEnumerable<InquiryDTO> GetInquiries(int page, int number)
+        {
+            throw new NotImplementedException();
+        }
+
+        public InquiryDTO GetInquiryById(int id)
+        {
+            throw new NotImplementedException();
+        }
+
+        public InquiryDTO GetInquiryByTitle(string title)
+        {
+            throw new NotImplementedException();
+        }
+        public UserDTO CreateInquiry(string title, string description, bool isUser, InquiryTableEntity database, SolutionEntity inquiryTable)
+        {
+            throw new NotImplementedException();
+        }
+
+        public bool DeleteInquiry(int id)
+        {
+            throw new NotImplementedException();
+        }
+
+        public InquiryDTO UpdateInquiry(int id, InquiryDTO inquiry)
+        {
+            throw new NotImplementedException();
+        }
+
+        public IEnumerable<InquiryDTO> GetLessons(int page, int number)
+        {
+            throw new NotImplementedException();
+        }
+
+        public InquiryDTO GetLessonById(int id)
+        {
+            throw new NotImplementedException();
+        }
+
+        public InquiryDTO GetLessonByTitle(string title)
+        {
+            throw new NotImplementedException();
+        }
+
+        public bool DeleteLesson(int id)
+        {
+            throw new NotImplementedException();
+        }
+
+        public InquiryDTO UpdateLesson(int id, LessonDTO lesson)
+        {
+            throw new NotImplementedException();
+        }
+
+        public UserDTO CreateLesson(string title, string lastPublisher, DateOnly lastEdit)
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task<T?> AddItem<T>(T? item) where T : class
+        {
+            using (var context = new UserDbContext())
+            {
+                return await context.CreateItemAsync(item);
+            }
+
+        }
+
+        public async Task<bool> DeleteItem<T>(int id) where T : class
+        {
+           using(var context = new UserDbContext())
+            {
+                return await context.DeleteItemAsync<T>(id);
+            }
+        }
+        public async Task<T?> UpdateItem<T, TDto>(int? id, TDto? newItem)
+            where T : class
+            where TDto : class
+        {
+            using(var context = new UserDbContext()) 
+            {
+                return await context.UpdateItemAsync<T, TDto>(id, newItem);
+            }  
+        }
+
+        public async Task<IEnumerable<T?>> GetItems<T>(int index, int count, string? orderingPropertyName = null, object? valueProperty = null) where T : class
+        {
+            using (var context = new UserDbContext())
+            {
+                return await context.GetItemsWithFilter<T>(index, count, orderingPropertyName, valueProperty);
+            }
+        }
+    }  
+}

API_SQLuedo/ModelToEntity/Extension.cs

@@ -0,0 +1,104 @@
+using Microsoft.AspNetCore.Identity;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Entities;
+using Entities.SQLudeoDB;
+using Model.Business;
+using System.Diagnostics;
+using DbContextLib;
+using Microsoft.EntityFrameworkCore;
+using System.Linq.Expressions;
+using Microsoft.EntityFrameworkCore.Metadata.Internal;
+
+namespace ModelToEntity
+{
+    internal static class Extension
+    {
+        internal static Task<T?> CreateItemAsync<T>(this DbContext context, T? item) where T : class
+        {
+            if (item == null || context.Set<T>().Contains(item))
+            {
+                return Task.FromResult<T?>(default(T));
+            }
+
+            context.Set<T>().Add(item);
+            context.SaveChangesAsync();
+
+            return Task.FromResult<T?>(item);
+        }
+        internal static async Task<bool> DeleteItemAsync<T>(this DbContext context, int? id) where T : class
+        {
+            if (id == null)
+            {
+                return false;
+            }
+
+            var entity = await context.Set<T>().FindAsync(id);
+            if (entity == null)
+            {
+                return false;
+            }
+
+            context.Set<T>().Remove(entity);
+            await context.SaveChangesAsync();
+
+            return true;
+        }
+        internal static Task<T?> UpdateItemAsync<T, TDto>(this DbContext context, int? id, TDto dto)
+        where T : class
+        where TDto : class
+        {
+            var entity = context.Set<T>().Find(id);
+            if (entity == null)
+            {
+                throw new ArgumentException("Impossible de trouver l'entité", nameof(id));
+            }
+
+            var propertiesToUpdate = typeof(TDto).GetProperties()
+                                                  .Where(p => p.CanRead && p.CanWrite);
+
+            foreach (var property in propertiesToUpdate)
+            {
+                var value = property.GetValue(dto);
+                typeof(T).GetProperty(property.Name)?.SetValue(entity, value);
+            }
+
+            context.Entry(entity).State = EntityState.Modified;
+            context.SaveChanges();
+
+            return Task.FromResult<T?>(entity);
+        }
+        internal static Task<IEnumerable<T?>> GetItemsWithFilter<T>(this DbContext context,
+            int index, int count, string? orderingPropertyName = null, object valueProperty = null) where T : class
+        {
+            IQueryable<T> query = context.Set<T>();
+
+            if (valueProperty != null && !string.IsNullOrEmpty(orderingPropertyName))
+            {
+                var prop = typeof(T).GetProperty(orderingPropertyName);
+                if (prop != null)
+                {
+                    var idProp = typeof(T).GetProperty(orderingPropertyName);
+                    if (idProp != null)
+                    {
+                        var parameter = Expression.Parameter(typeof(T), "entity");
+                        var propertyAccess = Expression.Property(parameter, prop);
+                        var constant = Expression.Constant(valueProperty);
+                        var equality = Expression.Equal(propertyAccess, constant);
+                        var lambda = Expression.Lambda<Func<T, bool>>(equality, parameter);
+                        var filteredEntity = context.Set<T>().FirstOrDefault(lambda);
+                        if (filteredEntity != null)
+                        {
+                            return Task.FromResult<IEnumerable<T?>>(new List<T?> { filteredEntity });
+                        }
+                    }
+                }
+            }
+            var items = query.Skip(index).Take(count).ToList();
+            return Task.FromResult<IEnumerable<T?>>(items);
+        }
+    }
+}

API_SQLuedo/ModelToEntity/IDataServiceEF.cs

@@ -0,0 +1,33 @@
+using Entities.SQLudeoDB;
+using Model.Business;
+using Model.DTO;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Services
+{
+    public interface IDataServiceEF
+    {
+        public Task<IEnumerable<User>> GetUsers(int page, int number);
+        public Task<User> GetUserById(int id);
+        public Task<User> GetUserByUsername(string username);
+        public Task<bool> DeleteUser(int id);
+        public Task<User> UpdateUser(int id, UserDTO user);
+        public Task<User> CreateUser(string username, string password, string email, bool isAdmin);
+        public IEnumerable<InquiryDTO> GetInquiries(int page, int number);
+        public InquiryDTO GetInquiryById(int id);
+        public InquiryDTO GetInquiryByTitle(string title);
+        public bool DeleteInquiry(int id);
+        public InquiryDTO UpdateInquiry(int id, InquiryDTO inquiry);
+        public UserDTO CreateInquiry(string title, string description, bool isUser, InquiryTableEntity database, SolutionEntity inquiryTable);
+        public IEnumerable<InquiryDTO> GetLessons(int page, int number);
+        public InquiryDTO GetLessonById(int id);
+        public InquiryDTO GetLessonByTitle(string title);
+        public bool DeleteLesson(int id);
+        public InquiryDTO UpdateLesson(int id, LessonDTO lesson);
+        public UserDTO CreateLesson(string title, string lastPublisher, DateOnly lastEdit);
+    }
+}

API_SQLuedo/ModelToEntity/ModelToEntity.csproj

@@ -0,0 +1,29 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.1">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.1">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\DbContextLib\DbContextLib.csproj" />
+    <ProjectReference Include="..\EntityFramework\Entities.csproj" />
+    <ProjectReference Include="..\Model\Model.csproj" />
+    <ProjectReference Include="..\Shared\Shared.csproj" />
+  </ItemGroup>
+
+</Project>

API_SQLuedo/Services/DataService.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Model.Business;
+using Model.DTO;
+using Shared;
+
+namespace Services
+{
+    public class DataService : IDataService<UserDTO>
+    {
+        public IUserDataService<UserDTO?> UserService { get; }
+        public DataService(IUserDataService<UserDTO?> userDataService) 
+        {
+            UserService = userDataService;
+        }
+
+        public IInquiryDataService InquiryDataService { get; }
+
+        public ILessonDataService LessonDataService { get; }
+    }
+}

API_SQLuedo/Services/IDataService.cs

@@ -1,18 +0,0 @@
-using Model.Business;
-using Model.DTO;
-
-namespace Services
-{
-    public interface IDataService
-    {
-        public IEnumerable<UserDTO> GetUsers(int page, int number);
-        public UserDTO GetUserById(int id);
-        public UserDTO GetUserByUsername(string username);
-        public bool DeleteUser(int id);
-        public UserDTO UpdateUser(int id, UserDTO user);
-        public UserDTO CreateUser(string username, string password, string email, bool isAdmin);
-        public IEnumerable<InquiryDTO> GetInquiries(int page, int number);
-        public InquiryDTO GetInquiryById(int id);
-        public InquiryDTO GetInquiryByTitle(string title);
-    }
-}

API_SQLuedo/Services/LessonDataService.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Services
+{
+    public class LessonDataService
+    {
+    }
+}

API_SQLuedo/Services/Services.csproj

@@ -22,7 +22,9 @@
   <ItemGroup>
     <ProjectReference Include="..\DbContextLib\DbContextLib.csproj" />
     <ProjectReference Include="..\EntityFramework\Entities.csproj" />
+   <ProjectReference Include="..\ModelToEntity\ModelToEntity.csproj" />
     <ProjectReference Include="..\Model\Model.csproj" />
+    <ProjectReference Include="..\Shared\Shared.csproj" />
   </ItemGroup>
 
 </Project>

API_SQLuedo/Services/UserDataService.cs

@@ -8,100 +8,76 @@ using System.Threading.Tasks;
 using Model.Mappers;
 using Model.Business;
 using Microsoft.EntityFrameworkCore;
+using Entities.SQLudeoDB;
+using ModelToEntity;
 
 namespace Services
 {
-    public class UserDataService : IDataService
+    public class UserDataService : IUserDataService<UserDTO?>
     {
-        private UserDbContext DbContext { get; set; }
+        private readonly IUserDataService<User> dataServiceEF;
-        public UserDataService(UserDbContext context) 
+        public UserDataService(IUserDataService<User> dataServiceEF) 
         {
-            DbContext = context;
+            this.dataServiceEF = dataServiceEF;
-            context.Database.EnsureCreated();
         }
 
-        public UserDTO GetUserById(int id)
+        public async Task<UserDTO?> GetUserById(int id)
         {
-            var userEntity = DbContext.Users.FirstOrDefault(u => u.Id == id);
+            var user = await dataServiceEF.GetUserById(id);
-            if (userEntity == null)
+            return user.FromModelToDTO();
-            {
-                throw new ArgumentException("Impossible de trouver l'utilisateur", nameof(id));
-            }
-            return userEntity.FromEntityToModel().FromModelToDTO();
-
         }
 
-        public UserDTO GetUserByUsername(string username)
+        public async Task<UserDTO?> GetUserByUsername(string username)
         {
-            var userEntity = DbContext.Users.FirstOrDefault(u => u.Username == username);
+            var user = await dataServiceEF.GetUserByUsername(username);
-            if (userEntity == null)
+            return user.FromModelToDTO();
-            {
-                throw new ArgumentException("Impossible de trouver l'utilisateur", nameof(username));
-            }
-            return userEntity.FromEntityToModel().FromModelToDTO();
         }
 
-        public IEnumerable<UserDTO> GetUsers(int page, int number)
+        public async Task<IEnumerable<UserDTO?>> GetUsers(int page, int number)
         {
-            return DbContext.Users.Skip((page - 1) * number).Take(number).ToList().Select(u => u.FromEntityToModel().FromModelToDTO());
+            var users =  await dataServiceEF.GetUsers(page, number);
+            return users.Select(u => u.FromModelToDTO());
         }
 
-        public bool DeleteUser(int id)
+        public async Task<bool> DeleteUser(int id)
         {
-            var userEntity = DbContext.Users.FirstOrDefault(u => u.Id == id);
+            var respons = await dataServiceEF.DeleteUser(id);
-            if (userEntity == null)
+            return respons;
-            {
-                return false;
-            }
-            DbContext.Users.Remove(userEntity);
-            DbContext.SaveChangesAsync();
-            return true;
         }
 
-        public UserDTO UpdateUser(int id, UserDTO user)
+        public async Task<UserDTO?> UpdateUser(int id, UserDTO user)
-        {
-            var updatingUser = DbContext.Users.FirstOrDefault(u => u.Id == id);
-            if (updatingUser == null)
         {
-                throw new ArgumentException("Impossible de trouver l'utilisateur", nameof(id));
+            var updatingUser = await dataServiceEF.UpdateUser(id, user);
+            return updatingUser.FromModelToDTO();
         }
-            updatingUser.Username = user.Username;
+        public async Task<UserDTO?> CreateUser(string username, string password, string email, bool isAdmin)
-            updatingUser.Password = user.Password;
+        {
-            updatingUser.Email = user.Email;
+            var newUserEntity =  await dataServiceEF.CreateUser(username, password, email, isAdmin);
-            updatingUser.IsAdmin = user.IsAdmin;
+            return newUserEntity.FromModelToDTO();
-            // Permet d'indiquer en Db que l'entité a été modifiée.
-            DbContext.Entry(updatingUser).State = EntityState.Modified;
-            DbContext.SaveChangesAsync();
-            return updatingUser.FromEntityToModel().FromModelToDTO();
         }
 
-        public UserDTO CreateUser(string username, string password, string email, bool isAdmin)
+        public async Task<T?> AddItem<T>(T? item) where T : class
-        {
-            var newUserEntity = new UserDTO
         {
-                Username = username,
+            var newItem = dataServiceEF.AddItem(item);
-                Password = password,
+            return await newItem;
-                Email = email,
-                IsAdmin = isAdmin
-            };
-            DbContext.Users.Add(newUserEntity.FromDTOToModel().FromModelToEntity());
-            DbContext.SaveChangesAsync();
-            return newUserEntity;
         }
 
-        public IEnumerable<InquiryDTO> GetInquiries(int page, int number)
+        public Task<bool> DeleteItem<T>(int id) where T : class
         {
-            throw new NotImplementedException();
+            var succes = dataServiceEF.DeleteItem<T>(id);
+            return succes;
         }
 
-        public InquiryDTO GetInquiryById(int id)
+        public Task<T> UpdateItem<T, TDto>(int? id, TDto? newItem) where T : class where TDto : class
         {
-            throw new NotImplementedException();
+            var item = dataServiceEF.UpdateItem<T, TDto>(id, newItem);
+            return item;
         }
 
-        public InquiryDTO GetInquiryByTitle(string title)
+        public Task<IEnumerable<T?>> GetItems<T>(int index, int count, string? orderingPropertyName = null, object? valueProperty = null) where T : class
         {
-            throw new NotImplementedException();
+           var items = dataServiceEF.GetItems<T>(index, count, orderingPropertyName, valueProperty);
+            return items;
         }
     }
 }

API_SQLuedo/Shared/IDataService.cs

@@ -0,0 +1,13 @@
+using Entities.SQLudeoDB;
+using Model.Business;
+using Model.DTO;
+
+namespace Services
+{
+    public interface IDataService<T> where T : class
+    {
+        IUserDataService<T?> UserService { get; }
+        IInquiryDataService InquiryDataService { get; }
+        ILessonDataService LessonDataService { get; }
+    }
+}

API_SQLuedo/Shared/IGenericService.cs

@@ -0,0 +1,10 @@
+namespace Shared
+{
+    public interface IGenericService<T> where T : class
+    {
+        public Task<T?> AddItem<T>(T? item) where T : class;
+        public Task<bool> DeleteItem<T>(int id) where T : class;
+        public Task<T> UpdateItem<T, TDto>(int? id, TDto? newItem) where T : class where TDto : class;
+        public Task<IEnumerable<T>> GetItems<T>(int index, int count, string? orderingPropertyName = null, object? valueProperty = null) where T : class;
+    }
+}

API_SQLuedo/Shared/IInquiryDataService.cs

@@ -0,0 +1,21 @@
+using Entities.SQLudeoDB;
+using Model.DTO;
+using Shared;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Services
+{
+    public interface IInquiryDataService : IGenericService<InquiryDTO>
+    {
+        public IEnumerable<InquiryDTO> GetInquiries(int page, int number);
+        public InquiryDTO GetInquiryById(int id);
+        public InquiryDTO GetInquiryByTitle(string title);
+        public bool DeleteInquiry(int id);
+        public InquiryDTO UpdateInquiry(int id, InquiryDTO inquiry);
+        public UserDTO CreateInquiry(string title, string description, bool isUser, InquiryTableEntity database, SolutionEntity inquiryTable);
+    }
+}

API_SQLuedo/Shared/ILessonDataService.cs

@@ -0,0 +1,20 @@
+using Model.DTO;
+using Shared;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Services
+{
+    public interface ILessonDataService : IGenericService<LessonDTO>
+    {
+        public IEnumerable<InquiryDTO> GetLessons(int page, int number);
+        public InquiryDTO GetLessonById(int id);
+        public InquiryDTO GetLessonByTitle(string title);
+        public bool DeleteLesson(int id);
+        public InquiryDTO UpdateLesson(int id, LessonDTO lesson);
+        public UserDTO CreateLesson(string title, string lastPublisher, DateOnly lastEdit);
+    }
+}

API_SQLuedo/Shared/IUserDataService.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Services;
+using Model.DTO;
+using Shared;
+using Model.Business;
+
+namespace Services
+{
+    public interface IUserDataService<T> : IGenericService<T?> where T : class
+    {
+        public Task<IEnumerable<T?>> GetUsers(int page, int number);
+        public Task<T?> GetUserById(int id);
+        public Task<T?> GetUserByUsername(string username);
+        public Task<bool> DeleteUser(int id);
+        public Task<T?> UpdateUser(int id, UserDTO user);
+        public Task<T?> CreateUser(string username, string password, string email, bool isAdmin);
+
+    }
+}

API_SQLuedo/Shared/Shared.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Model\Model.csproj" />
+  </ItemGroup>
+
+</Project>