InitialCode Commit
This commit is contained in:
Mueller Wayan
@@ -0,0 +1,359 @@
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namespace MTG_CollectionVerwaltung.Data
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{
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using Microsoft.EntityFrameworkCore;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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namespace MTGCollection
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{
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public class MTGContext : DbContext
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{
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public MTGContext(DbContextOptions<MTGContext> options)
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: base(options)
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{
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var conn = Database.GetDbConnection();
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conn.Open();
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// SQLite Funktion registrieren
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var sqliteConn = (Microsoft.Data.Sqlite.SqliteConnection)conn;
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sqliteConn.CreateFunction<string, string, int, int>("levenshtein", LevenshteinMinWordDistanceByLength);
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}
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public DbSet<Card> Cards { get; set; }
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public DbSet<CardPrinting> CardPrintings { get; set; }
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public DbSet<CardType> CardTypes { get; set; }
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public DbSet<MTGType> Types { get; set; }
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public DbSet<Set> Sets { get; set; }
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public DbSet<CardCollection> CardCollections { get; set; }
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public DbSet<Supertype> Supertypes { get; set; }
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public DbSet<CardPrintingFts> CardPrintingsFts { get; set; }
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protected override void OnModelCreating(ModelBuilder modelBuilder)
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{
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// CardPrinting: zusammengesetzter Schlüssel
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modelBuilder.Entity<CardPrinting>()
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.HasIndex(cp => new { cp.CardId, cp.Lang })
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.IsUnique(); // falls du weiterhin Eindeutigkeit auf CardId+Lang willst
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modelBuilder.Entity<CardPrinting>()
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.HasOne(cp => cp.Card)
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.WithMany(c => c.Printings)
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.HasForeignKey(cp => cp.CardId);
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// CardType: zusammengesetzter Schlüssel
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modelBuilder.Entity<CardType>()
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.HasKey(ct => new { ct.CardId, ct.TypeId });
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modelBuilder.Entity<CardType>()
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.HasOne(ct => ct.Card)
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.WithMany(c => c.CardTypes)
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.HasForeignKey(ct => ct.CardId);
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modelBuilder.Entity<CardType>()
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.HasOne(ct => ct.Type)
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.WithMany()
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.HasForeignKey(ct => ct.TypeId);
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// CardCollection: zusammengesetzter Schlüssel
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modelBuilder.Entity<CardCollection>()
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.HasKey(cc => new { cc.CardId, cc.UserId });
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modelBuilder.Entity<CardCollection>()
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.HasOne(cc => cc.Card)
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.WithMany(c => c.Collections)
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.HasForeignKey(cc => cc.CardId);
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// Card -> Set
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modelBuilder.Entity<Card>()
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.HasOne(c => c.Set)
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.WithMany(s => s.Cards)
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.HasForeignKey(c => c.SetCode)
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.HasPrincipalKey(s => s.SetCode);
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// Card -> Supertype
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modelBuilder.Entity<Card>()
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.HasOne(c => c.SuperType)
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.WithMany()
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.HasForeignKey(c => c.SuperTypeId);
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// Indizes
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modelBuilder.Entity<Card>()
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.HasIndex(c => c.CardName);
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modelBuilder.Entity<CardCollection>()
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.HasIndex(cc => cc.UserId);
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modelBuilder.Entity<Card>()
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.HasIndex(c => new { c.CollectorNumber, c.SetCode });
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modelBuilder.Entity<CardPrinting>()
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.HasIndex(c => c.Name);
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modelBuilder.Entity<CardPrinting>()
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.HasIndex(c => c.OracleText);
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// Default Values
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modelBuilder.Entity<Card>()
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.Property(c => c.Foil)
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.HasDefaultValue(false);
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modelBuilder.Entity<Card>()
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.Property(c => c.NonFoil)
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.HasDefaultValue(false);
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//Remove CaseSensitivity
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modelBuilder.Entity<CardPrinting>()
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.Property(c => c.Name)
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.UseCollation("NOCASE");
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modelBuilder.Entity<CardPrinting>()
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.Property(c => c.OracleText)
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.UseCollation("NOCASE");
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modelBuilder.Entity<MTGType>()
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.Property(c => c.TypeEn)
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.UseCollation("NOCASE");
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modelBuilder.Entity<MTGType>()
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.Property(c => c.TypeDe)
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.UseCollation("NOCASE");
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modelBuilder.Entity<Supertype>()
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.Property(c => c.TypeEn)
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.UseCollation("NOCASE");
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modelBuilder.Entity<Supertype>()
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.Property(c => c.TypeDe)
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.UseCollation("NOCASE");
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modelBuilder.Entity<CardPrintingFts>(entity =>
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{
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entity.HasNoKey(); // Keyless, weil FTS rowid nicht als PK nutzbar
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entity.ToView(null); // keine Migration/View erzeugen
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entity.Property(e => e.Name);
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entity.Property(e => e.OracleText);
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entity.Property(e => e.FlavorText);
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});
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}
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public static int LevenshteinMinWordDistanceByLength(string s, string t, int tolerance = 2)
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{
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if (string.IsNullOrEmpty(s)) return t?.Length ?? 0;
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if (string.IsNullOrEmpty(t)) return s.Length;
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if (s.Contains(t)) return 0;
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var wordsS = s.Split(new[] { ' ', '-', '_', '`', '\'', ',' }, StringSplitOptions.RemoveEmptyEntries);
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var wordsT = t.Split(new[] { ' ', '-', '_', '`', '\'', ',' }, StringSplitOptions.RemoveEmptyEntries);
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int minDistance = int.MaxValue;
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foreach (var ws in wordsS)
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{
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// nur Wörter in sinnvollem Längenbereich vergleichen
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if (Math.Abs(ws.Length - t.Length) <= tolerance)
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{
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foreach (var wt in wordsT)
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{
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if (Math.Abs(ws.Length - wt.Length) <= tolerance)
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{
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int dist = Levenshtein(ws, wt);
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if (dist < minDistance)
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minDistance = dist;
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}
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}
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}
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}
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return minDistance;
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}
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public static int Levenshtein(string s, string t)
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{
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if (string.IsNullOrEmpty(s)) return t?.Length ?? 0;
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if (string.IsNullOrEmpty(t)) return s.Length;
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int[,] d = new int[s.Length + 1, t.Length + 1];
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for (int i = 0; i <= s.Length; i++) d[i, 0] = i;
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for (int j = 0; j <= t.Length; j++) d[0, j] = j;
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for (int i = 1; i <= s.Length; i++)
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{
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for (int j = 1; j <= t.Length; j++)
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{
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int cost = (s[i - 1] == t[j - 1]) ? 0 : 1;
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d[i, j] = Math.Min(
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Math.Min(d[i - 1, j] + 1, d[i, j - 1] + 1),
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d[i - 1, j - 1] + cost);
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}
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}
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return d[s.Length, t.Length];
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}
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public void EnsureFtsInitialized()
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{
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using var conn = (Microsoft.Data.Sqlite.SqliteConnection)Database.GetDbConnection();
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conn.Open();
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// Prüfen, ob FTS-Tabelle schon existiert
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using var checkCmd = conn.CreateCommand();
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checkCmd.CommandText = "SELECT name FROM sqlite_master WHERE type='table' AND name='CardPrintingsFTS';";
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var exists = checkCmd.ExecuteScalar() != null;
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if (!exists)
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{
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// FTS-Tabelle erstellen
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using var createCmd = conn.CreateCommand();
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createCmd.CommandText = @"
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CREATE VIRTUAL TABLE CardPrintingsFTS
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USING fts5(
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Name,
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OracleText,
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FlavorText,
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content='CardPrintings',
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content_rowid='Id',
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tokenize='trigram'
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);
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";
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createCmd.ExecuteNonQuery();
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}
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}
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public void RebuildCardPrintingsFts()
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{
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using var conn = (Microsoft.Data.Sqlite.SqliteConnection)Database.GetDbConnection();
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conn.Open();
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using var cmd = conn.CreateCommand();
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cmd.CommandText = @"INSERT INTO CardPrintingsFTS(CardPrintingsFTS) VALUES('rebuild');";
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cmd.ExecuteNonQuery();
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}
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}
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public class Card
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{
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[Key]
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public string Id { get; set; } = string.Empty;
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[Required, MaxLength(10)]
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public string SetCode { get; set; } = string.Empty;
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[Required, MaxLength(100)]
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public string CardName { get; set; } = string.Empty;
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public string? CollectorNumber { get; set; }
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public string? ManaCost { get; set; }
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public bool Foil { get; set; }
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public bool NonFoil { get; set; }
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public string? Rarity { get; set; }
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public string? Power { get; set; }
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public string? Toughness { get; set; }
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public int SuperTypeId { get; set; }
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public int Cmc { get; set; }
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public string? OtherFace { get; set; }
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public Set Set { get; set; }
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public Supertype SuperType { get; set; }
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public ICollection<CardPrinting> Printings { get; set; } = new List<CardPrinting>();
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public ICollection<CardType> CardTypes { get; set; } = new List<CardType>();
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public ICollection<CardCollection> Collections { get; set; } = new List<CardCollection>();
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}
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public class CardPrinting
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{
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[Key]
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public int Id { get; set; }
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[Required, MaxLength(40)]
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public string CardId { get; set; }
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[Required, MaxLength(5)]
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public string Lang { get; set; }
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[Required, MaxLength(100)]
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public string Name { get; set; }
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public string? OracleText { get; set; }
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public string? FlavorText { get; set; }
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public string? ImageUriSmall { get; set; }
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public string? ImageUriNormal { get; set; }
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public string? ImageUriLarge { get; set; }
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public Card Card { get; set; }
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}
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[Keyless]
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public class CardPrintingFts
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{
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public string Name { get; set; }
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public string? OracleText { get; set; }
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public string? FlavorText { get; set; }
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}
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public class CardType
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{
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[Required]
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public string CardId { get; set; }
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[Required]
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public int TypeId { get; set; }
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public Card Card { get; set; }
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public MTGType Type { get; set; }
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}
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public class MTGType
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{
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[Key]
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public int TypeId { get; set; }
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public string TypeEn { get; set; } = "";
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public string TypeDe { get; set; } = "";
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}
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public class Supertype
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{
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[Key]
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public int TypeId { get; set; }
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public string TypeEn { get; set; } = "";
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public string TypeDe { get; set; } = "";
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}
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public class Set
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{
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[Key, MaxLength(10)]
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public string SetCode { get; set; }
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[Required, MaxLength(50)]
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public string SetName { get; set; }
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public string SetIcon { get; set; }
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public string SetType { get; set; }
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public int CardCount { get; set; }
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public DateTime ReleaseDate { get; set; }
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public ICollection<Card> Cards { get; set; } = new List<Card>();
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}
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public class CardCollection
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{
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[Required]
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public string CardId { get; set; }
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[Required]
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public string UserId { get; set; }
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public int Count { get; set; }
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public Card Card { get; set; }
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}
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}
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}
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