Add migrations
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D044E84C5BE01605
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@ -5,30 +5,31 @@ using LinqToDB;
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using LinqToDB.Configuration;
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using LinqToDB.Data;
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namespace c3stream.DataModels {
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public class Database {
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public class ConnectionStringSettings : IConnectionStringSettings {
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public string ConnectionString { get; set; }
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public string Name { get; set; }
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public string ProviderName { get; set; }
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public bool IsGlobal => false;
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}
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namespace c3stream.DataModels;
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public class Settings : ILinqToDBSettings {
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public IEnumerable<IDataProviderSettings> DataProviders => Enumerable.Empty<IDataProviderSettings>();
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public class Database {
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public class ConnectionStringSettings : IConnectionStringSettings {
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public string ConnectionString { get; set; }
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public string Name { get; set; }
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public string ProviderName { get; set; }
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public bool IsGlobal => false;
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}
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public string DefaultConfiguration => "SQLite";
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public string DefaultDataProvider => "SQLite";
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public class Settings : ILinqToDBSettings {
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public IEnumerable<IDataProviderSettings> DataProviders => Enumerable.Empty<IDataProviderSettings>();
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public IEnumerable<IConnectionStringSettings> ConnectionStrings {
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get { yield return new ConnectionStringSettings {Name = "db", ProviderName = "SQLite", ConnectionString = @"Data Source=data/c3stream.sqlite;"}; }
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}
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}
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public string DefaultConfiguration => "SQLite";
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public string DefaultDataProvider => "SQLite";
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public class DbConn : DataConnection {
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public DbConn() : base("db") { }
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public ITable<States> States => GetTable<States>();
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public IEnumerable<IConnectionStringSettings> ConnectionStrings {
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get { yield return new ConnectionStringSettings { Name = "db", ProviderName = "SQLite", ConnectionString = @"Data Source=data/c3stream.sqlite;" }; }
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}
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}
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public class DbConn : DataConnection {
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public DbConn() : base("db") { }
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public ITable<States> States => GetTable<States>();
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public ITable<DbInfo> DbInfo => GetTable<DbInfo>();
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}
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}
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@ -0,0 +1,9 @@
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using LinqToDB.Mapping;
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namespace c3stream.DataModels.Tables;
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[Table(Name = "DbInfo")]
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public class DbInfo {
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[Column(Name = "ID"), PrimaryKey, Identity, NotNull] public int Id { get; set; }
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[Column(Name = "DbVer"), NotNull] public int DbVer { get; set; }
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}
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@ -0,0 +1,90 @@
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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 c3stream.DataModels;
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using c3stream.DataModels.Tables;
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using LinqToDB;
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using LinqToDB.Data;
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namespace c3stream;
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public static class Migrations {
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private const int DbVer = 0;
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private static readonly List<Migration> _migrations = new() { };
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public static void RunMigrations() {
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using var db = new Database.DbConn();
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var ccolor = Console.ForegroundColor;
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if (!db.DataProvider.GetSchemaProvider().GetSchema(db).Tables.Any()) {
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Console.ForegroundColor = ConsoleColor.DarkCyan;
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Console.Write("Running migration: ");
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Console.ForegroundColor = ConsoleColor.Yellow;
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Console.WriteLine("Initialize Database");
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db.CreateTable<States>();
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db.CreateTable<DbInfo>();
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db.InsertWithIdentity(new DbInfo { DbVer = DbVer });
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}
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else if (db.DataProvider.GetSchemaProvider().GetSchema(db).Tables.All(t => t.TableName != "DbInfo")) {
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db.CreateTable<DbInfo>();
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db.InsertWithIdentity(new DbInfo { DbVer = 0 });
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}
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Console.ForegroundColor = ConsoleColor.Yellow;
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Console.WriteLine($"Database version: {db.DbInfo.ToList().First().DbVer}");
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var migrationsToRun = _migrations.FindAll(p => p.IntroducedWithDbVer > db.DbInfo.First().DbVer);
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if (migrationsToRun.Count == 0) {
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Console.ForegroundColor = ConsoleColor.Green;
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Console.WriteLine("No migrations to run.");
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}
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else {
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new Migration(0, "BEGIN TRANSACTION").Run(db);
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try {
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migrationsToRun.ForEach(p => p.Run(db));
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}
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catch {
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Console.ForegroundColor = ConsoleColor.DarkRed;
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Console.WriteLine($"Migrating to database version {DbVer} failed.");
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new Migration(0, "ROLLBACK TRANSACTION").Run(db);
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Console.ForegroundColor = ConsoleColor.DarkYellow;
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Console.WriteLine("Rolled back migrations.");
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Environment.Exit(1);
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}
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new Migration(0, "COMMIT TRANSACTION").Run(db);
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var newdb = new Database.DbConn();
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var dbinfo = newdb.DbInfo.First();
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dbinfo.DbVer = DbVer;
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newdb.Update(dbinfo);
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Console.ForegroundColor = ConsoleColor.DarkGreen;
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Console.WriteLine($"Database version is now: {DbVer}");
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Console.ForegroundColor = ConsoleColor.Green;
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Console.WriteLine("Finished running migrations.");
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}
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Console.ForegroundColor = ccolor;
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}
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private class Migration {
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private readonly string _sql;
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public readonly int IntroducedWithDbVer;
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public Migration(int introducedWithDbVer, string sql) {
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IntroducedWithDbVer = introducedWithDbVer;
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_sql = sql;
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}
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public void Run(DataConnection db) {
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Console.ForegroundColor = ConsoleColor.DarkCyan;
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Console.Write("Running migration: ");
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Console.ForegroundColor = ConsoleColor.Yellow;
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Console.WriteLine(_sql);
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db.Execute(_sql);
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}
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}
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}
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@ -7,36 +7,36 @@
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="linq2db" Version="3.2.2" />
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<PackageReference Include="Microsoft.Data.Sqlite" Version="5.0.1" PrivateAssets="none" />
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<PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
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<PackageReference Include="linq2db" Version="3.6.0"/>
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<PackageReference Include="Newtonsoft.Json" Version="12.0.3"/>
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<PackageReference Include="System.Data.SQLite.Core" Version="1.0.115.5"/>
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</ItemGroup>
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<ItemGroup>
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<_ContentIncludedByDefault Remove="data\database.json" />
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<_ContentIncludedByDefault Remove="data\_c3stream.json" />
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<_ContentIncludedByDefault Remove="data\33c3.json" />
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<_ContentIncludedByDefault Remove="data\34c3.json" />
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<_ContentIncludedByDefault Remove="data\35c3.json" />
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<_ContentIncludedByDefault Remove="data\database.json"/>
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<_ContentIncludedByDefault Remove="data\_c3stream.json"/>
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<_ContentIncludedByDefault Remove="data\33c3.json"/>
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<_ContentIncludedByDefault Remove="data\34c3.json"/>
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<_ContentIncludedByDefault Remove="data\35c3.json"/>
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</ItemGroup>
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<ItemGroup>
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<Compile Remove="data\**" />
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<Compile Remove="data\**"/>
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</ItemGroup>
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<ItemGroup>
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<EmbeddedResource Remove="data\**" />
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<EmbeddedResource Remove="data\**"/>
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</ItemGroup>
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<ItemGroup>
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<None Remove="data\**" />
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<None Remove="data\**"/>
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</ItemGroup>
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<ItemGroup>
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<Content Remove="data\**" />
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<Content Remove="data\**"/>
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</ItemGroup>
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<ItemGroup>
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<Folder Include="DataModels" />
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<Folder Include="DataModels"/>
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</ItemGroup>
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</Project>
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