33 lines
1.2 KiB
C#
33 lines
1.2 KiB
C#
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using Microsoft.EntityFrameworkCore;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Hosting;
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namespace Elsa.Persistence.EFCore;
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/// <summary>
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/// Executes EF Core migrations using the specified <see cref="DbContext"/> type.
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/// </summary>
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public class RunMigrationsHostedService<TDbContext> : IHostedService where TDbContext : DbContext
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{
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private readonly IServiceScopeFactory _scopeFactory;
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/// <summary>
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/// Initializes a new instance of the <see cref="RunMigrationsHostedService{TDbContext}"/> class.
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/// </summary>
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public RunMigrationsHostedService(IServiceScopeFactory scopeFactory)
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{
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_scopeFactory = scopeFactory;
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}
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/// <inheritdoc />
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public async Task StartAsync(CancellationToken cancellationToken)
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{
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using var scope = _scopeFactory.CreateScope();
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var dbContextFactory = scope.ServiceProvider.GetRequiredService<IDbContextFactory<TDbContext>>();
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await using var dbContext = await dbContextFactory.CreateDbContextAsync(cancellationToken);
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await dbContext.Database.MigrateAsync(cancellationToken);
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}
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/// <inheritdoc />
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public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask;
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}
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