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AbbDbContext: Move SqliteConnection extensions to Extensions class
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Lorenz Stechauner
2025-12-20 11:06:03 +01:00
parent 2b7c16a2a1
commit 36288682dc
12 changed files with 83 additions and 81 deletions
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39
Elwig/Helpers/Extensions.cs
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@@ -1,14 +1,17 @@
using Microsoft.Data.Sqlite;
using System;
using System.Collections.Generic;
using System.IO;
using System.IO.Compression;
using System.IO.Hashing;
using System.Net.Http;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Threading;
using System.Threading.Tasks;
namespace Elwig.Helpers {
static partial class Extensions {
public static partial class Extensions {
[LibraryImport("msvcrt.dll")]
[UnmanagedCallConv(CallConvs = [typeof(System.Runtime.CompilerServices.CallConvCdecl)])]
@@ -108,5 +111,39 @@ namespace Elwig.Helpers {
throw new InvalidDataException($"CRC-32 mismatch in '{entry.FullName}'");
}
}
public static async Task ExecuteBatch(this SqliteConnection cnx, string sql) {
using var cmd = cnx.CreateCommand();
cmd.CommandText = sql;
using var reader = await cmd.ExecuteReaderAsync();
while (await reader.NextResultAsync()) ;
}
public static async Task ExecuteEmbeddedScript(this SqliteConnection cnx, Assembly asm, string name) {
using var stream = asm.GetManifestResourceStream(name) ?? throw new FileNotFoundException("Unable to load embedded resource");
using var reader = new StreamReader(stream);
await ExecuteBatch(cnx, await reader.ReadToEndAsync());
}
public static async Task<object?> ExecuteScalar(this SqliteConnection cnx, string sql) {
using var cmd = cnx.CreateCommand();
cmd.CommandText = sql;
return await cmd.ExecuteScalarAsync();
}
public static async Task<(string Table, long RowId, string Parent, long FkId)[]> ForeignKeyCheck(this SqliteConnection cnx) {
using var cmd = cnx.CreateCommand();
cmd.CommandText = "PRAGMA foreign_key_check";
using var reader = await cmd.ExecuteReaderAsync();
var list = new List<(string, long, string, long)>();
while (await reader.ReadAsync()) {
var table = reader.GetString(0);
var rowid = reader.GetInt64(1);
var parent = reader.GetString(2);
var fkid = reader.GetInt64(3);
list.Add((table, rowid, parent, fkid));
}
return [.. list];
}
}
}