public override IEnumerable <MigrationStatement> Generate(
IEnumerable <MigrationOperation> migrationOperations,
string providerManifestToken)
{
// usa o `DiscriminatorIndexAnnotationProcessor` para substituir as anotações
// do DiscriminatorIndex pelas operações de Create/Rename/Delete index.
migrationOperations = DiscriminatorIndexAnnotationProcessor.Process(migrationOperations);
// continua o processamento utilizando o SQL Generator decorado.
return(_migrationSqlGenerator.Generate(migrationOperations, providerManifestToken));
}
public static void RunMigration(this DbContext context, DbMigration migration)
{
var prop = migration.GetType().GetProperty("Operations", BindingFlags.NonPublic | BindingFlags.Instance);
if (prop != null)
{
IEnumerable <MigrationOperation> operations = prop.GetValue(migration) as IEnumerable <MigrationOperation>;
MigrationSqlGenerator generator = (new DbMigrationsConfiguration()).GetSqlGenerator("JetEntityFrameworkProvider");
var statements = generator.Generate(operations, "Jet");
foreach (MigrationStatement item in statements)
{
context.Database.ExecuteSqlCommand(item.Sql);
}
}
}
public override IEnumerable <MigrationStatement> Generate(
IEnumerable <MigrationOperation> migrationOperations,
string providerManifestToken)
{
var items = new StringBuilder();
foreach (var operation in migrationOperations)
{
items.Append(operation.GetType().Name).Append(' ');
}
WrappingAdoNetProvider <TAdoNetBase> .Instance.Log.Add(
new LogItem("Generate", null, items.ToString()));
return(_baseGenerator.Generate(migrationOperations, providerManifestToken));
}
internal static IEnumerable <MigrationStatement> GenerateMigrationStatements(
TransactionContext context)
{
if (DbConfiguration.DependencyResolver.GetService <Func <MigrationSqlGenerator> >((object)context.InternalContext.ProviderName) != null)
{
MigrationSqlGenerator sqlGenerator = context.InternalContext.MigrationsConfiguration.GetSqlGenerator(context.InternalContext.ProviderName);
DbConnection connection = context.Database.Connection;
CreateTableOperation createTableOperation = (CreateTableOperation) new EdmModelDiffer().Diff(new DbModelBuilder().Build(connection).GetModel(), context.GetModel(), (Lazy <ModificationCommandTreeGenerator>)null, (MigrationSqlGenerator)null, (string)null, (string)null).Single <MigrationOperation>();
string providerManifestToken = context.InternalContext.ModelProviderInfo != null ? context.InternalContext.ModelProviderInfo.ProviderManifestToken : DbConfiguration.DependencyResolver.GetService <IManifestTokenResolver>().ResolveManifestToken(connection);
return(sqlGenerator.Generate((IEnumerable <MigrationOperation>) new CreateTableOperation[1]
{
createTableOperation
}, providerManifestToken));
}
return((IEnumerable <MigrationStatement>) new MigrationStatement[1]
{
new MigrationStatement()
{
Sql = ((IObjectContextAdapter)context).ObjectContext.CreateDatabaseScript(),
SuppressTransaction = true
}
});
}
public override IEnumerable<MigrationStatement> Generate(IEnumerable<MigrationOperation> migrationOperations, string providerManifestToken)
{
var ms = _innerSqlGenerator.Generate(AddCommentSqlStatements(migrationOperations), providerManifestToken);
return ms;
}