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Add support for custom delete statements #137

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Add support for custom delete statements #137

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47 changes: 44 additions & 3 deletions Respawn.DatabaseTests/SqlServerTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,47 @@ public async Task ShouldDeleteData()
_database.ExecuteScalar<int>("SELECT COUNT(1) FROM Foo").ShouldBe(0);
}

[Fact]
public async Task ShouldDeleteDataUsingCustomDeleteStatements()
{
await _database.ExecuteAsync("create table Foo (Value [int])");
await _database.ExecuteAsync("create table Bar (Value [int])");

await _database.InsertBulkAsync(Enumerable.Range(0, 100).Select(i => new Foo { Value = i }));
await _database.InsertBulkAsync(Enumerable.Range(0, 100).Select(i => new Bar { Value = i }));

_database.ExecuteScalar<int>("SELECT COUNT(1) FROM Foo").ShouldBe(100);
_database.ExecuteScalar<int>("SELECT COUNT(1) FROM Bar").ShouldBe(100);

var checkpoint = await Respawner.CreateAsync(_connection, new RespawnerOptions()
{
FormatDeleteStatement = table =>
{
if (table.Name == "Foo")
{
return $"DELETE FROM {table.GetFullName('"')} WHERE Value > 20;";
}
else
{
return $"DELETE FROM {table.GetFullName('"')} WHERE Value > 30;";
}
}
});

try
{
await checkpoint.ResetAsync(_connection);
}
catch
{
_output.WriteLine(checkpoint.DeleteSql);
throw;
}

_database.ExecuteScalar<int>("SELECT COUNT(1) FROM Foo").ShouldBe(21);
_database.ExecuteScalar<int>("SELECT COUNT(1) FROM Bar").ShouldBe(31);
}

[Fact]
public async Task ShouldHandleRelationships()
{
Expand Down Expand Up @@ -262,8 +303,8 @@ public async Task ShouldIgnoreTables()
{
_output.WriteLine(checkpoint.DeleteSql);
throw;
}
}

_output.WriteLine(checkpoint.DeleteSql);
_database.ExecuteScalar<int>("SELECT COUNT(1) FROM Foo").ShouldBe(100);
_database.ExecuteScalar<int>("SELECT COUNT(1) FROM Bar").ShouldBe(0);
Expand Down Expand Up @@ -293,7 +334,7 @@ public async Task ShouldIgnoreTablesWithSchema()
{
TablesToIgnore = new[]
{
new Table("A", "Foo"),
new Table("A", "Foo"),
new Table("A", "FooWithBrackets")
}
});
Expand Down
2 changes: 1 addition & 1 deletion Respawn/IDbAdapter.cs
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Expand Up @@ -10,7 +10,7 @@ public interface IDbAdapter
string BuildTableCommandText(RespawnerOptions options);
string BuildTemporalTableCommandText(RespawnerOptions options);
string BuildRelationshipCommandText(RespawnerOptions options);
string BuildDeleteCommandText(GraphBuilder builder);
string BuildDeleteCommandText(GraphBuilder builder, RespawnerOptions options);
string BuildReseedSql(IEnumerable<Table> tablesToDelete);
string BuildTurnOffSystemVersioningCommandText(IEnumerable<TemporalTable> tablesToTurnOffSystemVersioning);
string BuildTurnOnSystemVersioningCommandText(IEnumerable<TemporalTable> tablesToTurnOnSystemVersioning);
Expand Down
6 changes: 3 additions & 3 deletions Respawn/InformixDbAdapter.cs
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Expand Up @@ -177,7 +177,7 @@ INNER JOIN systables T2
return commandText;
}

public string BuildDeleteCommandText(GraphBuilder graph)
public string BuildDeleteCommandText(GraphBuilder graph, RespawnerOptions options)
{
var builder = new StringBuilder();

Expand All @@ -187,7 +187,7 @@ public string BuildDeleteCommandText(GraphBuilder graph)
}
foreach (var table in graph.ToDelete)
{
builder.AppendLine($"DELETE FROM {table.GetFullName(QuoteCharacter)};");
builder.AppendLine(options.FormatDeleteStatement?.Invoke(table) ?? $"DELETE FROM {table.GetFullName(QuoteCharacter)};");
}
foreach (var table in graph.CyclicalTableRelationships)
{
Expand All @@ -204,7 +204,7 @@ public string BuildDeleteCommandText(GraphBuilder graph)
public string BuildTurnOffSystemVersioningCommandText(IEnumerable<TemporalTable> tablesToTurnOffSystemVersioning) => throw new System.NotImplementedException();

public string BuildTurnOnSystemVersioningCommandText(IEnumerable<TemporalTable> tablesToTurnOnSystemVersioning) => throw new System.NotImplementedException();

public Task<bool> CheckSupportsTemporalTables(DbConnection connection)
{
return Task.FromResult(false);
Expand Down
6 changes: 3 additions & 3 deletions Respawn/MySqlAdapter.cs
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Expand Up @@ -178,14 +178,14 @@ public string BuildRelationshipCommandText(RespawnerOptions options)
return commandText;
}

public string BuildDeleteCommandText(GraphBuilder graph)
public string BuildDeleteCommandText(GraphBuilder graph, RespawnerOptions options)
{
var builder = new StringBuilder();

builder.AppendLine("SET FOREIGN_KEY_CHECKS=0;");
foreach (var table in graph.ToDelete)
{
builder.AppendLine($"DELETE FROM {table.GetFullName(QuoteCharacter)};");
builder.AppendLine(options.FormatDeleteStatement?.Invoke(table) ?? $"DELETE FROM {table.GetFullName(QuoteCharacter)};");
}
builder.AppendLine("SET FOREIGN_KEY_CHECKS=1;");

Expand All @@ -208,7 +208,7 @@ public string BuildReseedSql(IEnumerable<Table> tablesToDelete)
public string BuildTurnOffSystemVersioningCommandText(IEnumerable<TemporalTable> tablesToTurnOffSystemVersioning) => throw new System.NotImplementedException();

public string BuildTurnOnSystemVersioningCommandText(IEnumerable<TemporalTable> tablesToTurnOnSystemVersioning) => throw new System.NotImplementedException();

public Task<bool> CheckSupportsTemporalTables(DbConnection connection)
{
return Task.FromResult(false);
Expand Down
11 changes: 6 additions & 5 deletions Respawn/OracleDbAdapter.cs
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Expand Up @@ -170,21 +170,22 @@ from all_CONSTRAINTS a
return commandText;
}

public string BuildDeleteCommandText(GraphBuilder graph)
public string BuildDeleteCommandText(GraphBuilder graph, RespawnerOptions options)
{
var deleteSql = string.Join("\n", BuildCommands(graph));
var deleteSql = string.Join("\n", BuildCommands(graph, options));
return $"BEGIN\n{deleteSql}\nEND;";
}

private static IEnumerable<string> BuildCommands(GraphBuilder graph)
private static IEnumerable<string> BuildCommands(GraphBuilder graph, RespawnerOptions options)
{
foreach (var rel in graph.CyclicalTableRelationships)
{
yield return $"EXECUTE IMMEDIATE 'ALTER TABLE {rel.ParentTable.GetFullName(QuoteCharacter)} DISABLE CONSTRAINT {QuoteCharacter}{rel.Name}{QuoteCharacter}';";
}
foreach (var table in graph.ToDelete)
{
yield return $"EXECUTE IMMEDIATE 'delete from {table.GetFullName(QuoteCharacter)}';";
var deleteCommand = options.FormatDeleteStatement?.Invoke(table) ?? $"delete from {table.GetFullName(QuoteCharacter)}";
yield return $"EXECUTE IMMEDIATE '{deleteCommand}';";
}
foreach (var rel in graph.CyclicalTableRelationships)
{
Expand All @@ -198,7 +199,7 @@ private static IEnumerable<string> BuildCommands(GraphBuilder graph)
public string BuildTurnOffSystemVersioningCommandText(IEnumerable<TemporalTable> tablesToTurnOffSystemVersioning) => throw new System.NotImplementedException();

public string BuildTurnOnSystemVersioningCommandText(IEnumerable<TemporalTable> tablesToTurnOnSystemVersioning) => throw new System.NotImplementedException();

public Task<bool> CheckSupportsTemporalTables(DbConnection connection)
{
return Task.FromResult(false);
Expand Down
18 changes: 14 additions & 4 deletions Respawn/PostgresDbAdapter.cs
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Expand Up @@ -183,18 +183,28 @@ from INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS rc
return commandText;
}

public string BuildDeleteCommandText(GraphBuilder graph)
public string BuildDeleteCommandText(GraphBuilder graph, RespawnerOptions options)
{
var builder = new StringBuilder();

foreach (var table in graph.CyclicalTableRelationships.Select(rel => rel.ParentTable))
{
builder.AppendLine($"ALTER TABLE {table.GetFullName(QuoteCharacter)} DISABLE TRIGGER ALL;");
}
if (graph.ToDelete.Any())
if (graph.ToDelete.Count > 0)
{
var allTables = graph.ToDelete.Select(table => table.GetFullName(QuoteCharacter));
builder.AppendLine($"truncate table {string.Join(",", allTables)} cascade;");
if (options.FormatDeleteStatement != null)
{
foreach (var table in graph.ToDelete)
{
builder.AppendLine(options.FormatDeleteStatement(table) ?? $"truncate table {table.GetFullName(QuoteCharacter)} cascade;");
}
}
else
{
var allTables = graph.ToDelete.Select(table => table.GetFullName(QuoteCharacter));
builder.AppendLine($"truncate table {string.Join(",", allTables)} cascade;");
}
}
foreach (var table in graph.CyclicalTableRelationships.Select(rel => rel.ParentTable))
{
Expand Down
4 changes: 2 additions & 2 deletions Respawn/Respawner.cs
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Expand Up @@ -48,7 +48,7 @@ public static async Task<Respawner> CreateAsync(string nameOrConnectionString, R
}

/// <summary>
/// Creates a <see cref="Respawner"/> based on the supplied connection and options.
/// Creates a <see cref="Respawner"/> based on the supplied connection and options.
/// </summary>
/// <param name="connection">Connection object for your target database</param>
/// <param name="options">Options</param>
Expand Down Expand Up @@ -149,7 +149,7 @@ private async Task BuildDeleteTables(DbConnection connection)

var graphBuilder = new GraphBuilder(allTables, allRelationships);

DeleteSql = Options.DbAdapter.BuildDeleteCommandText(graphBuilder);
DeleteSql = Options.DbAdapter.BuildDeleteCommandText(graphBuilder, Options);
ReseedSql = Options.WithReseed ? Options.DbAdapter.BuildReseedSql(graphBuilder.ToDelete) : null;
}

Expand Down
3 changes: 2 additions & 1 deletion Respawn/RespawnerOptions.cs
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Expand Up @@ -12,6 +12,7 @@ public class RespawnerOptions
public bool CheckTemporalTables { get; init; }
public bool WithReseed { get; init; }
public int? CommandTimeout { get; init; }
public IDbAdapter DbAdapter { get; init; } = Respawn.DbAdapter.SqlServer;
public Func<Table, string>? FormatDeleteStatement { get; init; }

public IDbAdapter DbAdapter { get; init; } = Respawn.DbAdapter.SqlServer;
}
4 changes: 2 additions & 2 deletions Respawn/SqlServerDbAdapter.cs
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Expand Up @@ -181,7 +181,7 @@ sys.foreign_keys sfk
return commandText;
}

public string BuildDeleteCommandText(GraphBuilder graph)
public string BuildDeleteCommandText(GraphBuilder graph, RespawnerOptions options)
{
var builder = new StringBuilder();

Expand All @@ -191,7 +191,7 @@ public string BuildDeleteCommandText(GraphBuilder graph)
}
foreach (var table in graph.ToDelete)
{
builder.AppendLine($"DELETE {table.GetFullName(QuoteCharacter)};");
builder.AppendLine(options.FormatDeleteStatement?.Invoke(table) ?? $"DELETE {table.GetFullName(QuoteCharacter)};");
}
foreach (var table in graph.CyclicalTableRelationships.Select(rel => rel.ParentTable))
{
Expand Down
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