public static void Run(IDocumentStore documentStore, MigrationOptions options = null)
{
if (options == null)
{
options = new MigrationOptions();
}
if (!options.Assemblies.Any())
{
options.Assemblies.Add(Assembly.GetCallingAssembly());
}
var migrations = FindAllMigrationsWithOptions(options);
foreach (var pair in migrations)
{
// send in the document Store
var migration = pair.Migration();
migration.Setup(documentStore);
// todo: possible issue here with sharding
var migrationId =
migration.GetMigrationIdFromName(documentStore.Conventions.IdentityPartsSeparator[0]);
using (var session = documentStore.OpenSession())
{
var migrationDoc = session.Load <MigrationDocument>(migrationId);
switch (options.Direction)
{
case Directions.Down:
migration.Down();
session.Delete(migrationDoc);
break;
default:
// we already ran it
if (migrationDoc != null)
{
continue;
}
migration.Up();
session.Store(new MigrationDocument {
Id = migrationId
});
break;
}
session.SaveChanges();
if (pair.Attribute.Version == options.ToVersion)
{
break;
}
}
}
}
public static void Run(IDocumentStore documentStore, MigrationOptions options = null)
{
if (options == null)
options = new MigrationOptions();
if (!options.Assemblies.Any())
options.Assemblies.Add(Assembly.GetCallingAssembly());
var migrations = FindAllMigrationsWithOptions(options);
foreach (var pair in migrations)
{
// send in the document Store
var migration = pair.Migration();
migration.Setup(documentStore);
// todo: possible issue here with sharding
var migrationId =
migration.GetMigrationIdFromName(documentStore.Conventions.IdentityPartsSeparator[0]);
using (var session = documentStore.OpenSession())
{
var migrationDoc = session.Load<MigrationDocument>(migrationId);
switch (options.Direction)
{
case Directions.Down:
migration.Down();
session.Delete(migrationDoc);
break;
default:
// we already ran it
if (migrationDoc != null)
continue;
migration.Up();
session.Store(new MigrationDocument { Id = migrationId });
break;
}
session.SaveChanges();
if (pair.Attribute.Version == options.ToVersion)
break;
}
}
}
private static bool IsInCurrentMigrationProfile(MigrationWithAttribute migrationWithAttribute, MigrationOptions options)
{
if (migrationWithAttribute.Attribute == null)
{
throw new InvalidOperationException("Subclasses of Migration that can be instantiated must have the MigrationAttribute." +
"If this class was intended as a base class for other migrations, make it an abstract class.");
}
//If no particular profiles have been set, then the migration is
//effectively a part of all profiles
var profiles = migrationWithAttribute.Attribute.Profiles;
if (profiles.Any() == false)
return true;
//The migration must belong to at least one of the currently
//specified profiles
return options.Profiles
.Intersect(migrationWithAttribute.Attribute.Profiles, StringComparer.OrdinalIgnoreCase)
.Any();
}
/// <summary>
/// Returns all migrations found within all assemblies and orders them by the direction
/// </summary>
/// <param name="options"></param>
/// <returns></returns>
private static IEnumerable<MigrationWithAttribute> FindAllMigrationsWithOptions(MigrationOptions options)
{
var migrationsToRun =
from assembly in options.Assemblies
from t in assembly.GetLoadableTypes()
where typeof(Migration).IsAssignableFrom(t)
&& !t.IsAbstract
&& t.GetConstructor(Type.EmptyTypes) != null
select new MigrationWithAttribute
{
Migration = () => options.MigrationResolver.Resolve(t),
Attribute = t.GetMigrationAttribute()
} into migration
where IsInCurrentMigrationProfile(migration, options)
select migration;
// if we are going down, we want to run it in reverse
return options.Direction == Directions.Down
? migrationsToRun.OrderByDescending(x => x.Attribute.Version)
: migrationsToRun.OrderBy(x => x.Attribute.Version);
}
/// <summary>
/// Returns all migrations found within all assemblies and orders them by the direction
/// </summary>
/// <param name="options"></param>
/// <returns></returns>
private static IEnumerable <MigrationWithAttribute> FindAllMigrationsWithOptions(MigrationOptions options)
{
var migrations = new List <MigrationWithAttribute>();
foreach (var assembly in options.Assemblies)
{
var migrationsFromAssembly =
from t in assembly.GetLoadableTypes()
where typeof(Migration).IsAssignableFrom(t)
select new MigrationWithAttribute
{
Migration = () => options.MigrationResolver.Resolve(t),
Attribute = t.GetMigrationAttribute()
};
migrations.AddRange(migrationsFromAssembly);
}
var migrationsToRun = from m in migrations
where IsInCurrentMigrationProfile(m, options)
orderby m.Attribute.Version
select m;
// if we are going down, we want to run it in reverse
if (options.Direction == Directions.Down)
{
migrationsToRun = migrationsToRun.OrderByDescending(x => x.Attribute.Version);
}
return(migrationsToRun);
}
private static bool IsInCurrentMigrationProfile(MigrationWithAttribute migrationWithAttribute, MigrationOptions options)
{
return(string.IsNullOrWhiteSpace(migrationWithAttribute.Attribute.Profile) ||
options.Profiles.Any(x => StringComparer.InvariantCultureIgnoreCase.Compare(migrationWithAttribute.Attribute.Profile, x) == 0));
}
/// <summary>
/// Returns all migrations found within all assemblies and orders them by the direction
/// </summary>
/// <param name="options"></param>
/// <returns></returns>
private static IEnumerable <MigrationWithAttribute> FindAllMigrationsWithOptions(MigrationOptions options)
{
var migrationsToRun =
from assembly in options.Assemblies
from t in assembly.GetLoadableTypes()
where typeof(Migration).IsAssignableFrom(t) &&
!t.IsAbstract &&
t.GetConstructor(Type.EmptyTypes) != null
select new MigrationWithAttribute
{
Migration = () => options.MigrationResolver.Resolve(t),
Attribute = t.GetMigrationAttribute()
} into migration
where IsInCurrentMigrationProfile(migration, options)
select migration;
// if we are going down, we want to run it in reverse
return(options.Direction == Directions.Down
? migrationsToRun.OrderByDescending(x => x.Attribute.Version)
: migrationsToRun.OrderBy(x => x.Attribute.Version));
}
private static bool IsInCurrentMigrationProfile(MigrationWithAttribute migrationWithAttribute, MigrationOptions options)
{
if (migrationWithAttribute.Attribute == null)
{
throw new InvalidOperationException("Subclasses of Migration that can be instantiated must have the MigrationAttribute." +
"If this class was intended as a base class for other migrations, make it an abstract class.");
}
//If no particular profiles have been set, then the migration is
//effectively a part of all profiles
var profiles = migrationWithAttribute.Attribute.Profiles;
if (profiles.Any() == false)
{
return(true);
}
//The migration must belong to at least one of the currently
//specified profiles
return(options.Profiles
.Intersect(migrationWithAttribute.Attribute.Profiles, StringComparer.OrdinalIgnoreCase)
.Any());
}
