public bool TryPrintConstant(object value, IndentedStringBuilder stringBuilder)
{
var trackingInfoList = value as List<EntityTrackingInfo>;
if (trackingInfoList != null)
{
var appendAction = trackingInfoList.Count > 2 ? AppendLine : Append;
appendAction(stringBuilder, "{ ");
stringBuilder.IncrementIndent();
for (var i = 0; i < trackingInfoList.Count; i++)
{
var entityTrackingInfo = trackingInfoList[i];
var separator = i == trackingInfoList.Count - 1 ? " " : ", ";
stringBuilder.Append("itemType: " + entityTrackingInfo.QuerySource.ItemType.Name);
appendAction(stringBuilder, separator);
}
stringBuilder.DecrementIndent();
appendAction(stringBuilder, "}");
return true;
}
return false;
}
public void Append_line_at_start_with_indent()
{
var indentedStringBuilder = new IndentedStringBuilder();
using (indentedStringBuilder.Indent())
{
indentedStringBuilder.AppendLine("Foo");
}
Assert.Equal(" Foo" + _nl, indentedStringBuilder.ToString());
}
public void Append_line_in_middle_when_no_new_line()
{
var indentedStringBuilder = new IndentedStringBuilder();
indentedStringBuilder.AppendLine("Foo");
using (indentedStringBuilder.Indent())
{
indentedStringBuilder.AppendLine("Foo");
}
Assert.Equal($"Foo{_nl} Foo{_nl}", indentedStringBuilder.ToString());
}
private static void SerializeObject(object obj, IndentedStringBuilder sb)
{
if (obj == null)
{
sb.Append("null");
return;
}
if (obj is string)
{
SerializeString(obj as string, sb);
return;
}
if (obj is bool)
{
sb.Append(((bool)obj)
? "true"
: "false");
return;
}
if (obj is short
|| obj is ushort
|| obj is int
|| obj is uint
|| obj is long
|| obj is ulong
|| obj is decimal
|| obj is float
|| obj is double)
{
sb.Append(obj);
return;
}
if (obj is IEnumerable)
{
SerializeEnumerable(obj as IEnumerable, sb);
return;
}
if (obj.GetType().GetTypeInfo().IsClass)
{
SerializeClass(obj, sb);
return;
}
throw new ArgumentException($"Could not serialize {obj} [{obj.GetType().FullName}]");
}
public void Generate_seperates_operations_by_a_blank_line()
{
var generator = new CSharpMigrationOperationGenerator(new CSharpHelper());
var builder = new IndentedStringBuilder();
generator.Generate(
"mb",
new[]
{
new SqlOperation { Sql = "-- Don't stand so" },
new SqlOperation { Sql = "-- close to me" }
},
builder);
Assert.Equal(
"mb.Sql(\"-- Don't stand so\");" + EOL +
EOL +
"mb.Sql(\"-- close to me\");",
builder.ToString());
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public virtual string WriteCode(
[NotNull] ModelConfiguration modelConfiguration)
{
Check.NotNull(modelConfiguration, nameof(modelConfiguration));
_model = modelConfiguration;
_sb = new IndentedStringBuilder();
_sb.AppendLine("using System;"); // Guid default values require new Guid() which requires this using
_sb.AppendLine("using Microsoft.EntityFrameworkCore;");
_sb.AppendLine("using Microsoft.EntityFrameworkCore.Metadata;");
_sb.AppendLine();
_sb.AppendLine("namespace " + _model.Namespace());
_sb.AppendLine("{");
using (_sb.Indent())
{
AddClass();
}
_sb.Append("}");
return _sb.ToString();
}
private static void SerializeEnumerable(IEnumerable en, IndentedStringBuilder sb)
{
sb.AppendLine("[");
using (sb.Indent())
{
var e = en.GetEnumerator();
var next = e.MoveNext();
while (next)
{
SerializeObject(e.Current, sb);
if ((next = e.MoveNext()))
{
sb.AppendLine(",");
}
else
{
sb.AppendLine();
}
}
}
sb.Append("]");
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public virtual string WriteCode(
[NotNull] EntityConfiguration entityConfiguration)
{
Check.NotNull(entityConfiguration, nameof(entityConfiguration));
_entity = entityConfiguration;
_sb = new IndentedStringBuilder();
_sb.AppendLine("using System;");
_sb.AppendLine("using System.Collections.Generic;");
if (!_entity.ModelConfiguration.CustomConfiguration.UseFluentApiOnly)
{
_sb.AppendLine("using System.ComponentModel.DataAnnotations;");
_sb.AppendLine("using System.ComponentModel.DataAnnotations.Schema;");
}
foreach (var ns in _entity.EntityType.GetProperties()
.Select(p => p.ClrType.Namespace)
.Where(ns => ns != "System" && ns != "System.Collections.Generic")
.Distinct())
{
_sb
.Append("using ")
.Append(ns)
.AppendLine(';');
}
_sb.AppendLine();
_sb.AppendLine("namespace " + _entity.ModelConfiguration.Namespace());
_sb.AppendLine("{");
using (_sb.Indent())
{
AddClass();
}
_sb.AppendLine("}");
return _sb.ToString();
}
public bool TryPrintConstant(object value, IndentedStringBuilder stringBuilder)
{
var properties = value as IEnumerable<IPropertyBase>;
if (properties != null)
{
var appendAction = properties.Count() > 2 ? AppendLine : Append;
appendAction(stringBuilder, value.GetType().DisplayName(fullName: false) + " ");
appendAction(stringBuilder, "{ ");
stringBuilder.IncrementIndent();
foreach (var property in properties)
{
appendAction(stringBuilder, property.DeclaringEntityType.ClrType.Name + "." + property.Name + ", ");
}
stringBuilder.DecrementIndent();
stringBuilder.Append("}");
return true;
}
return false;
}
public bool TryPrintConstant(object value, IndentedStringBuilder stringBuilder)
{
var shaperCommandContext = value as ShaperCommandContext;
if (shaperCommandContext != null)
{
stringBuilder.AppendLine("SelectExpression: ");
stringBuilder.IncrementIndent();
var querySqlGenerator = shaperCommandContext.QuerySqlGeneratorFactory();
var sql = querySqlGenerator.GenerateSql(new Dictionary<string, object>()).CommandText;
var lines = sql.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
foreach (var line in lines)
{
stringBuilder.AppendLine(line);
}
stringBuilder.DecrementIndent();
return true;
}
return false;
}
public Indenter(IndentedStringBuilder stringBuilder)
{
_stringBuilder = stringBuilder;
_stringBuilder.IncrementIndent();
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public virtual string GenerateScript(
string fromMigration = null,
string toMigration = null,
bool idempotent = false)
{
var skippedMigrations = _migrationsAssembly.Migrations
.Where(t => string.Compare(t.Key, fromMigration, StringComparison.OrdinalIgnoreCase) < 0)
.Select(t => t.Key);
IReadOnlyList<Migration> migrationsToApply, migrationsToRevert;
PopulateMigrations(
skippedMigrations,
toMigration,
out migrationsToApply,
out migrationsToRevert);
var builder = new IndentedStringBuilder();
if (fromMigration == Migration.InitialDatabase
|| string.IsNullOrEmpty(fromMigration))
{
builder.AppendLine(_historyRepository.GetCreateIfNotExistsScript());
builder.Append(_sqlGenerationHelper.BatchTerminator);
}
for (var i = 0; i < migrationsToRevert.Count; i++)
{
var migration = migrationsToRevert[i];
var previousMigration = i != migrationsToRevert.Count - 1
? migrationsToRevert[i + 1]
: null;
_logger.LogDebug(RelationalStrings.GeneratingDown(migration.GetId()));
foreach (var command in GenerateDownSql(migration, previousMigration))
{
if (idempotent)
{
builder.AppendLine(_historyRepository.GetBeginIfExistsScript(migration.GetId()));
using (builder.Indent())
{
builder.AppendLines(command.CommandText);
}
builder.AppendLine(_historyRepository.GetEndIfScript());
}
else
{
builder.AppendLine(command.CommandText);
}
builder.Append(_sqlGenerationHelper.BatchTerminator);
}
}
foreach (var migration in migrationsToApply)
{
_logger.LogDebug(RelationalStrings.GeneratingUp(migration.GetId()));
foreach (var command in GenerateUpSql(migration))
{
if (idempotent)
{
builder.AppendLine(_historyRepository.GetBeginIfNotExistsScript(migration.GetId()));
using (builder.Indent())
{
builder.AppendLines(command.CommandText);
}
builder.AppendLine(_historyRepository.GetEndIfScript());
}
else
{
builder.AppendLine(command.CommandText);
}
builder.Append(_sqlGenerationHelper.BatchTerminator);
}
}
return builder.ToString();
}
public override string GenerateMetadata(
string migrationNamespace,
Type contextType,
string migrationName,
string migrationId,
IModel targetModel)
{
Check.NotEmpty(migrationNamespace, nameof(migrationNamespace));
Check.NotNull(contextType, nameof(contextType));
Check.NotEmpty(migrationName, nameof(migrationName));
Check.NotEmpty(migrationId, nameof(migrationId));
Check.NotNull(targetModel, nameof(targetModel));
var builder = new IndentedStringBuilder();
var namespaces = new List<string>
{
"System",
"Microsoft.EntityFrameworkCore",
"Microsoft.EntityFrameworkCore.Infrastructure",
"Microsoft.EntityFrameworkCore.Metadata",
"Microsoft.EntityFrameworkCore.Migrations",
contextType.Namespace
};
namespaces.AddRange(GetNamespaces(targetModel));
foreach (var n in namespaces.Distinct())
{
builder
.Append("using ")
.Append(n)
.AppendLine(";");
}
builder
.AppendLine()
.Append("namespace ").AppendLine(_code.Namespace(migrationNamespace))
.AppendLine("{");
using (builder.Indent())
{
builder
.Append("[DbContext(typeof(").Append(_code.Reference(contextType)).AppendLine("))]")
.Append("[Migration(").Append(_code.Literal(migrationId)).AppendLine(")]")
.Append("partial class ").AppendLine(_code.Identifier(migrationName))
.AppendLine("{");
using (builder.Indent())
{
builder
.AppendLine("protected override void BuildTargetModel(ModelBuilder modelBuilder)")
.AppendLine("{");
using (builder.Indent())
{
// TODO: Optimize. This is repeated below
_modelGenerator.Generate("modelBuilder", targetModel, builder);
}
builder.AppendLine("}");
}
builder.AppendLine("}");
}
builder.AppendLine("}");
return builder.ToString();
}
public void Append_line_with_indent_only()
{
var indentedStringBuilder = new IndentedStringBuilder();
using (indentedStringBuilder.Indent())
{
indentedStringBuilder.AppendLine();
}
Assert.Equal(Environment.NewLine, indentedStringBuilder.ToString());
}
public override string GenerateSnapshot(
string modelSnapshotNamespace,
Type contextType,
string modelSnapshotName,
IModel model)
{
Check.NotEmpty(modelSnapshotNamespace, nameof(modelSnapshotNamespace));
Check.NotNull(contextType, nameof(contextType));
Check.NotEmpty(modelSnapshotName, nameof(modelSnapshotName));
Check.NotNull(model, nameof(model));
var builder = new IndentedStringBuilder();
var namespaces = new List<string>
{
"System",
"Microsoft.EntityFrameworkCore",
"Microsoft.EntityFrameworkCore.Infrastructure",
"Microsoft.EntityFrameworkCore.Metadata",
"Microsoft.EntityFrameworkCore.Migrations",
contextType.Namespace
};
namespaces.AddRange(GetNamespaces(model));
foreach (var n in namespaces.Distinct())
{
builder
.Append("using ")
.Append(n)
.AppendLine(";");
}
builder
.AppendLine()
.Append("namespace ").AppendLine(_code.Namespace(modelSnapshotNamespace))
.AppendLine("{");
using (builder.Indent())
{
builder
.Append("[DbContext(typeof(").Append(_code.Reference(contextType)).AppendLine("))]")
.Append("partial class ").Append(_code.Identifier(modelSnapshotName)).AppendLine(" : ModelSnapshot")
.AppendLine("{");
using (builder.Indent())
{
builder
.AppendLine("protected override void BuildModel(ModelBuilder modelBuilder)")
.AppendLine("{");
using (builder.Indent())
{
_modelGenerator.Generate("modelBuilder", model, builder);
}
builder.AppendLine("}");
}
builder.AppendLine("}");
}
builder.AppendLine("}");
return builder.ToString();
}
public override string GenerateMigration(
string migrationNamespace,
string migrationName,
IReadOnlyList<MigrationOperation> upOperations,
IReadOnlyList<MigrationOperation> downOperations)
{
Check.NotEmpty(migrationNamespace, nameof(migrationNamespace));
Check.NotEmpty(migrationName, nameof(migrationName));
Check.NotNull(upOperations, nameof(upOperations));
Check.NotNull(downOperations, nameof(downOperations));
var builder = new IndentedStringBuilder();
var namespaces = new List<string>
{
"System",
"System.Collections.Generic",
"Microsoft.EntityFrameworkCore.Migrations"
};
namespaces.AddRange(GetNamespaces(upOperations.Concat(downOperations)));
foreach (var n in namespaces.Distinct())
{
builder
.Append("using ")
.Append(n)
.AppendLine(";");
}
builder
.AppendLine()
.Append("namespace ").AppendLine(_code.Namespace(migrationNamespace))
.AppendLine("{");
using (builder.Indent())
{
builder
.Append("public partial class ").Append(_code.Identifier(migrationName)).AppendLine(" : Migration")
.AppendLine("{");
using (builder.Indent())
{
builder
.AppendLine("protected override void Up(MigrationBuilder migrationBuilder)")
.AppendLine("{");
using (builder.Indent())
{
_operationGenerator.Generate("migrationBuilder", upOperations, builder);
}
builder
.AppendLine()
.AppendLine("}")
.AppendLine()
.AppendLine("protected override void Down(MigrationBuilder migrationBuilder)")
.AppendLine("{");
using (builder.Indent())
{
_operationGenerator.Generate("migrationBuilder", downOperations, builder);
}
builder
.AppendLine()
.AppendLine("}");
}
builder.AppendLine("}");
}
builder.AppendLine("}");
return builder.ToString();
}
public Indenter(IndentedStringBuilder stringBuilder)
{
_stringBuilder = stringBuilder;
_stringBuilder.IncrementIndent();
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public override string GetCreateIfNotExistsScript()
{
var builder = new IndentedStringBuilder();
builder.Append("IF OBJECT_ID(N'");
if (TableSchema != null)
{
builder
.Append(SqlGenerationHelper.EscapeLiteral(TableSchema))
.Append(".");
}
builder
.Append(SqlGenerationHelper.EscapeLiteral(TableName))
.AppendLine("') IS NULL")
.AppendLine("BEGIN");
using (builder.Indent())
{
builder.AppendLines(GetCreateScript());
}
builder.AppendLine("END;");
return builder.ToString();
}
public IndentedStringBuilder([NotNull] IndentedStringBuilder from)
{
_indent = from._indent;
}
private static void SerializeString(string s, IndentedStringBuilder sb)
{
sb.Append('"');
for (var i = 0; i < s.Length; i++)
{
if (_replaces.ContainsKey(s[i]))
{
sb.Append(_replaces[s[i]]);
}
else
{
sb.Append(s[i]);
}
}
sb.Append('"');
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public static string Serialize([CanBeNull] object obj)
{
var sb = new IndentedStringBuilder();
SerializeObject(obj, sb);
return sb.ToString();
}
private static void SerializeClass(object obj, IndentedStringBuilder sb)
{
sb.AppendLine("{");
using (sb.Indent())
{
var typeInfo = obj.GetType().GetTypeInfo();
var e = typeInfo.DeclaredProperties.GetEnumerator();
var next = e.MoveNext();
while (next)
{
var p = e.Current;
SerializeString(p.Name, sb);
sb.Append(": ");
SerializeObject(p.GetValue(obj), sb);
if ((next = e.MoveNext()))
{
sb.AppendLine(",");
}
else
{
sb.AppendLine();
}
}
}
sb.Append("}");
}
