/// <summary>
/// Execute queries or commands using the user context associated with the
/// specified user area. This is useful when implementing multiple user areas
/// whereby a client can be logged into multiple user accounts belonging to
/// different user areas. Use this to force execution to use the context
/// of a specific user area rather than relying on the "ambient" or default.
/// </summary>
/// <typeparam name="TUserAreaDefinition">
/// The user area to use when determining the signed in user to execute
/// tasks with.
/// </typeparam>
public static IDomainRepository WithContext <TUserAreaDefinition>(this IDomainRepository repository)
where TUserAreaDefinition : IUserAreaDefinition
{
var extendedContentRepositry = repository.AsExtendableContentRepository();
var userArea = extendedContentRepositry.ServiceProvider.GetRequiredService <TUserAreaDefinition>();
var userContextService = extendedContentRepositry.ServiceProvider.GetRequiredService <IUserContextService>();
var executionContextFactory = extendedContentRepositry.ServiceProvider.GetRequiredService <IExecutionContextFactory>();
return(extendedContentRepositry.WithExecutor(executor => new DomainRepositoryExecutorWithUserAreaContext(executor, userArea, userContextService, executionContextFactory)));
}
/// <summary>
/// Sets the execution context for any queries or commands
/// chained of this instance. Typically used to impersonate
/// a user, elevate permissions or maintain context in nested
/// query or command execution.
/// </summary>
/// <param name="executionContext">
/// The execution context instance to use.
/// </param>
public static IDomainRepository WithExecutionContext(this IDomainRepository domainRepository, IExecutionContext executionContext)
{
if (executionContext == null)
{
throw new ArgumentNullException(nameof(executionContext));
}
var extendedContentRepositry = domainRepository.AsExtendableContentRepository();
var newRepository = extendedContentRepositry.ServiceProvider.GetRequiredService <IContentRepositoryWithCustomExecutionContext>();
newRepository.SetExecutionContext(executionContext);
return(newRepository);
}
/// <summary>
/// Allows you to chain mutator functions to run after execution of a query.
/// </summary>
/// <typeparam name="TResult">Query result type.</typeparam>
/// <param name="query">Query to mutate.</param>
/// <returns>A query context that allows chaining of mutator functions.</returns>
public static IDomainRepositoryQueryContext <TResult> WithQuery <TResult>(this IDomainRepository domainRepository, IQuery <TResult> query)
{
var extendableContentRepository = domainRepository.AsExtendableContentRepository();
return(DomainRepositoryQueryContextFactory.Create(query, extendableContentRepository));
}
/// <summary>
/// Runs any queries or commands chained off this instance under
/// the system user account which has no permission restrictions.
/// This is useful when you need to perform an action that the currently
/// logged in user does not have permission for, e.g. signing up a new
/// user prior to login.
/// </summary>
public static IDomainRepository WithElevatedPermissions(this IDomainRepository domainRepository)
{
var extendedApi = domainRepository.AsExtendableContentRepository();
return(extendedApi.ServiceProvider.GetRequiredService <IContentRepositoryWithElevatedPermissions>());
}
/// <summary>
/// Used to manage transactions for multiple domain commands.
/// This abstraction is an enhanced version of
/// System.Transaction.TransactionScope and works in the same way.
/// </summary>
public static IDomainRepositoryTransactionManager Transactions(this IDomainRepository domainRepository)
{
var extendedContentRepositry = domainRepository.AsExtendableContentRepository();
return(extendedContentRepositry.ServiceProvider.GetRequiredService <IDomainRepositoryTransactionManager>());
}
