Added versioning to the API, created namespace for the Reposiorites, Changed the StoreContexts to Repositories, moved the Contexts class to another namespace. #37
This commit is contained in:
amazing-username
@@ -0,0 +1,370 @@
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using Microsoft.Extensions.Logging;
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using MySql.Data.MySqlClient;
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//using NLog;
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using Icarus.Models;
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namespace Icarus.Database.Repositories
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{
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public class ArtistRepository : BaseRepository
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{
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#region Fields
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#endregion
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#region Properties
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#endregion
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#region Constructors
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public ArtistRepository(string connectionString)
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{
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_connectionString = connectionString;
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}
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#endregion
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#region Methods
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public List<Artist> GetArtists()
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{
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List<Artist> artists = new List<Artist>();
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try
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{
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using (MySqlConnection conn = GetConnection())
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{
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conn.Open();
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var query = "SELECT art.*, COUNT(*) AS SongCount FROM Artist " +
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"art LEFT JOIN Song sng ON art.ArtistId=sng.ArtistId " +
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"GROUPY BY art.ArtistId";
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using (MySqlCommand cmd = new MySqlCommand(query, conn))
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{
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using (var reader = cmd.ExecuteReader())
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{
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artists = ParseData(reader);
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}
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}
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}
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}
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catch (Exception ex)
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{
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var msg = ex.Message;
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_logger.Error(msg, "An error occurred");
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}
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return artists;
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}
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public Artist GetArtist(Artist artist)
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{
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try
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{
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_logger.Info("Retrieving artist record from the database");
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using (MySqlConnection conn = GetConnection())
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{
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conn.Open();
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var query = "SELECT art.*, COUNT(*) AS SongCount FROM Artist " +
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"art LEFT JOIN Song sng ON art.ArtistId=sng.ArtistId " +
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"WHERE ArtistId=@ArtistId";
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using (MySqlCommand cmd = new MySqlCommand(query, conn))
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{
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cmd.Parameters.AddWithValue("@ArtistId", artist.ArtistId);
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using (var reader = cmd.ExecuteReader())
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{
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artist = ParseSingleData(reader);
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}
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}
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}
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}
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catch (Exception ex)
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{
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var msg = ex.Message;
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_logger.Error(msg, "An error occurred");
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}
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return artist;
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}
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public Artist GetArtist(Song song)
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{
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Artist artist = new Artist();
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try
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{
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_logger.Info("Retrieving artist record from the database");
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using (MySqlConnection conn = GetConnection())
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{
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conn.Open();
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var query = "SELECT art.*, 0 AS SongCount FROM Artist " +
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"art WHERE Name=@Name";
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using (MySqlCommand cmd = new MySqlCommand(query, conn))
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{
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cmd.Parameters.AddWithValue("@Name", song.Artist);
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using (var reader = cmd.ExecuteReader())
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{
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artist = ParseSingleData(reader);
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}
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}
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}
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}
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catch (Exception ex)
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{
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var msg = ex.Message;
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_logger.Error(msg, "An error occurred");
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}
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return artist;
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}
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public Artist GetArtist(Song song, bool retrieveCount)
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{
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var artist = new Artist();
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try
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{
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_logger.Info("Retrieving artist record from the database");
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using (MySqlConnection conn = GetConnection())
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{
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conn.Open();
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var query = string.Empty;
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if (retrieveCount)
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{
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query = "SELECT art.*, COUNT(*) AS SongCount FROM Artist " +
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"art LEFT JOIN Song sng ON art.ArtistId=sng.ArtistId " +
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"WHERE art.Name=@Name GROUP BY art.ArtistId LIMIT 1";
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}
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else
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{
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query = "SELECT art.*, 0 AS SongCount FROM Artist art " +
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"WHERE art.Name=@Name LIMIT 1";
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}
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using (MySqlCommand cmd = new MySqlCommand(query, conn))
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{
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cmd.Parameters.AddWithValue("@Name", song.Artist);
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using (var reader = cmd.ExecuteReader())
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{
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artist = ParseSingleData(reader);
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}
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}
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}
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}
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catch (Exception ex)
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{
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var msg = ex.Message;
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_logger.Error(msg, "An error occurred");
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}
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return artist;
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}
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public bool DoesArtistExist(Artist artist)
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{
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try
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{
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_logger.Info("Checking to see if Artist exists");
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using (MySqlConnection conn = GetConnection())
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{
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conn.Open();
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var query = "SELECT art.*, 0 AS SongCount FROM Artist art WHERE art.ArtistId=@ArtistId";
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using (MySqlCommand cmd = new MySqlCommand(query, conn))
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{
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cmd.Parameters.AddWithValue("@ArtistId", artist.ArtistId);
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using (var reader = cmd.ExecuteReader())
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{
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artist = ParseSingleData(reader);
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if (artist.Name != null)
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{
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_logger.Info($"Artist {artist.Name} exists");
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return true;
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}
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}
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}
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}
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}
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catch (Exception ex)
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{
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var msg = ex.Message;
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_logger.Error(msg, "An error occurred");
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}
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_logger.Info("Could not successfully retrieve Artist");
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return false;
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}
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public bool DoesArtistExist(Song song)
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{
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try
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{
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_logger.Info("Checking to see if Artist exists");
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using (MySqlConnection conn = GetConnection())
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{
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conn.Open();
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var query = "SELECT art.*, 0 AS SongCount FROM Artist art WHERE art.Name=@Name";
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using (MySqlCommand cmd = new MySqlCommand(query, conn))
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{
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cmd.Parameters.AddWithValue("@Name", song.Artist);
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using (var reader = cmd.ExecuteReader())
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{
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var artist = ParseSingleData(reader);
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if (!String.IsNullOrEmpty(artist.Name))
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{
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_logger.Info($"Artist {artist.Name} exists");
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return true;
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}
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}
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}
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}
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}
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catch (Exception ex)
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{
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var msg = ex.Message;
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_logger.Error(msg, "An error occurred");
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}
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_logger.Info("Could not successfully retrieve Artist");
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return false;
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}
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public void SaveArtist(Artist artist)
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{
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try
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{
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_logger.Info("Saving artist record");
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using (MySqlConnection conn = GetConnection())
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{
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conn.Open();
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var query = "INSERT INTO Artist(Name) VALUES(@Name)";
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using (MySqlCommand cmd = new MySqlCommand(query, conn))
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{
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cmd.Parameters.AddWithValue("@Name", artist.Name);
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cmd.ExecuteNonQuery();
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}
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}
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_logger.Info("Artist record has successfully been saved");
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}
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catch (Exception ex)
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{
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var msg = ex.Message;
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_logger.Error(msg, "An error occurred");
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}
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}
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public void UpdateArtist(Artist artist)
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{
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try
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{
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_logger.Info("Updating artist record");
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using (MySqlConnection conn = GetConnection())
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{
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conn.Open();
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var query = "UPDATE Artist SET Name=@Name WHERE ArtistId=@ArtistId";
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using (MySqlCommand cmd = new MySqlCommand(query, conn))
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{
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cmd.Parameters.AddWithValue("@Name", artist.Name);
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cmd.Parameters.AddWithValue("@ArtistId", artist.ArtistId);
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cmd.ExecuteNonQuery();
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}
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}
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_logger.Info("Artist record has successfully been saved");
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}
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catch (Exception ex)
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{
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var msg = ex.Message;
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_logger.Error(msg, "An error occurred");
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}
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}
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public void DeleteArtist(Artist artist)
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{
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try
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{
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_logger.Info("Deleting artist record");
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using (var conn = GetConnection())
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{
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conn.Open();
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var query = "DELETE FROM Artist WHERE ArtistId=@ArtistId";
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using (var cmd = new MySqlCommand(query, conn))
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{
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cmd.Parameters.AddWithValue("@ArtistId", artist.ArtistId);
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cmd.ExecuteNonQuery();
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}
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}
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}
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catch (Exception ex)
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{
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var msg = ex.Message;
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_logger.Error(msg, "An error occurred");
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}
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}
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private List<Artist> ParseData(MySqlDataReader reader)
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{
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List<Artist> artists = new List<Artist>();
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while (reader.Read())
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{
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var id = Convert.ToInt32(reader["ArtistId"]);
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var name = reader["Name"].ToString();
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var songCount = Convert.ToInt32(reader["SongCount"].ToString());
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artists.Add(new Artist
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{
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ArtistId = id,
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Name = name,
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SongCount = songCount
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});
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}
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_logger.Info("Artist records retrieved");
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return artists;
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}
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private Artist ParseSingleData(MySqlDataReader reader)
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{
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Artist artist = new Artist();
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while (reader.Read())
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{
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var id = Convert.ToInt32(reader["ArtistId"]);
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var name = reader["Name"].ToString();
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var songCount = Convert.ToInt32(reader["SongCount"].ToString());
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artist.ArtistId = id;
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artist.Name = name;
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artist.SongCount = songCount;
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}
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_logger.Info("Single artist record retrieved");
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return artist;
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}
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#endregion
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}
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}
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