Gallery verwendet Datenbank
- Menü: Fixed typo in Gallerie - Datenbanken-Funktionen dokumentiert
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@ -1,14 +1,11 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Text;
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using System.Threading.Tasks;
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using DataAccess.DbAccess;
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using DataAccess.DbAccess;
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using DataAccess.Models;
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namespace DataAccess.Data;
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/// <summary>
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/// Ermöglicht den Zugriff auf die BildInfo Datenbank.
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/// </summary>
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public class BildInfoData
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{
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private readonly ISqlDataAccess _db;
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@ -18,18 +15,34 @@ public class BildInfoData
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_db = db;
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}
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/// <summary>
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/// Fügt die gegebene BildInfo zur Datenbank hinzu und aktualisiert das <see cref="BildInfoModel.Id"/>-Feld mit dem entsprechenden Wert.
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/// </summary>
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/// <param name="bildInfo">Die BildInfo, die zur Datenbank hinzugefügt werden soll.</param>
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public async Task AddBildInfoAsync(BildInfoModel bildInfo)
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{
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var id = await _db.LoadData<int, BildInfoModel>("dbo.spBildInfo_Insert", bildInfo);
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bildInfo.Id = id.Single();
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}
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public async Task UpdateBildInfoDateinameAsync(BildInfoModel bildInfo)
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/// <summary>
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/// Aktualisiert das Dateiname-Feld der übergebenen BildInfo in der Datenbank.
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/// </summary>
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/// <param name="bildInfo">Die BildInfo deren Dateiname aktualisiert werden soll.</param>
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public Task UpdateBildInfoDateinameAsync(BildInfoModel bildInfo)
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{
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await _db.SaveData("dbo.spBildInfo_UpdateFileName",
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return _db.SaveData("dbo.spBildInfo_UpdateFileName",
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new {
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Id = bildInfo.Id,
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Dateiname = bildInfo.Dateiname,
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});
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}
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/// <summary>
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/// Gibt alle Bild Infos der Datenbank zurück.
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/// </summary>
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public Task<IEnumerable<BildInfoModel>> GetAllBildInfosAsync()
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{
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return _db.LoadData<BildInfoModel, dynamic>("dbo.spBildInfo_GetAll", new { });
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}
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}
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@ -22,4 +22,15 @@ public class WunschInfoData
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var id = await _db.LoadData<int, WunschInfoModel>("dbo.spWunschInfo_Insert", wunschInfo);
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wunschInfo.Id = id.Single();
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}
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/// <summary>
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/// Gibt die WunschInfo mit der gegebenen Id zurück.
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/// </summary>
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/// <param name="wunschId">Die Id der zu ladenen WunschInfo</param>
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/// <returns>Die WunschInfo mit der gegebenen Id</returns>
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public async Task<WunschInfoModel> GetWunschInfoAsync(int wunschId)
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{
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var wunschInfo = await _db.LoadData<WunschInfoModel, dynamic>("dbo.spWunschInfo_Get", new { Id = wunschId });
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return wunschInfo.Single();
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}
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}
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@ -1,7 +1,26 @@
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namespace DataAccess.DbAccess;
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/// <summary>
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/// Bietet lesenden und schreibenden Zugriff auf eine Datenbank.
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/// </summary>
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public interface ISqlDataAccess
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{
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Task<IEnumerable<T>> LoadData<T, U>(string storedProcedure, U parameters, string connectionId = "Default");
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Task SaveData<T>(string storedProcedure, T parameters, string connectionId = "Default");
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/// <summary>
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/// Führt die angegebene Stored Procedure aus. Diese Prozedur nimmt Parameter des Typs <see cref="TParameter"/> engegen und gibt ein Enumerable des Typs <see cref="TResult"/> zurück.
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/// </summary>
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/// <typeparam name="TResult">Der Typ der Parameter</typeparam>
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/// <typeparam name="TParameter">Der Typ der Rückgabewerte</typeparam>
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/// <param name="storedProcedure">Der Name der Prozedur</param>
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/// <param name="parameters">Die Parameter für die Prozedur.</param>
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/// <param name="connectionId">Die optionale Id des zu verwendenen Connection Strings.</param>
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Task<IEnumerable<TResult>> LoadData<TResult, TParameter>(string storedProcedure, TParameter parameters, string connectionId = "Default");
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/// <summary>
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/// Führt die angegebene Stored Procedure aus. Diese Prozedur nimmt Parameter des Typs <see cref="TParameter"/> engegen und gibt nichts zurück.
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/// </summary>
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/// <typeparam name="TParameter">Der Typ der Parameter</typeparam>
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/// <param name="storedProcedure">Der Name der Prozedur</param>
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/// <param name="parameters">Die Parameter für die Prozedur.</param>
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/// <param name="connectionId">Die optionale Id des zu verwendenen Connection Strings.</param>
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Task SaveData<TParameter>(string storedProcedure, TParameter parameters, string connectionId = "Default");
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}
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@ -5,6 +5,9 @@ using Dapper;
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namespace DataAccess.DbAccess;
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/// <summary>
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/// Bietet lesenden und schreibenden Zugriff auf eine Datenbank.
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/// </summary>
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public class SqlDataAccess : ISqlDataAccess
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{
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private readonly IConfiguration _config;
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@ -14,14 +17,14 @@ public class SqlDataAccess : ISqlDataAccess
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_config = config;
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}
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public async Task<IEnumerable<T>> LoadData<T, U>(string storedProcedure, U parameters, string connectionId = "Default")
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public async Task<IEnumerable<TResult>> LoadData<TResult, TParameter>(string storedProcedure, TParameter parameters, string connectionId = "Default")
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{
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using IDbConnection connection = new SqlConnection(_config.GetConnectionString(connectionId));
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return await connection.QueryAsync<T>(storedProcedure, parameters, commandType: CommandType.StoredProcedure);
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return await connection.QueryAsync<TResult>(storedProcedure, parameters, commandType: CommandType.StoredProcedure);
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}
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public async Task SaveData<T>(string storedProcedure, T parameters, string connectionId = "Default")
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public async Task SaveData<TParameter>(string storedProcedure, TParameter parameters, string connectionId = "Default")
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{
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using IDbConnection connection = new SqlConnection(_config.GetConnectionString(connectionId));
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