public ColumnModel(SchemaModel owner, XElement element)
: this(owner)
{
name = element.Attribute("Name").Value;
dataType = Type.GetType(element.Attribute("DataType").Value);
var def = element.Element("DefaultValue");
if (def.Element("Null") == null) //If it's not <Null />
DefaultValue = def.Value;
allowNulls = (bool)element.Attribute("AllowNulls");
description = element.Attribute("Description").Value;
expression = element.Attribute("Expression").Value.NonEmpty();
generateSqlMapping = (bool)element.Attribute("GenerateSqlMapping");
isUnique = (bool)element.Attribute("IsUnique");
propertyName = element.Attribute("PropertyName").Value;
propertyVisibility = Utils.ParseVisibility(element.Attribute("PropertyVisibility").Value);
sqlName = element.Attribute("SqlName").Value.NonEmpty();
var pSchema = element.Attribute("ForeignSchemaName");
if (pSchema != null)
ForeignSchema = Owner.Owner.Schemas.Single(c => c.Name == pSchema.Value);
//The ForeignSchema resets these properties
foreignRelationName = element.Attribute("ForeignRelationName").Value.NonEmpty();
foreignRelationPropertyDescription = element.Attribute("ForeignRelationPropertyDescription").Value.NonEmpty();
foreignRelationPropertyName = element.Attribute("ForeignRelationPropertyName").Value.NonEmpty();
}
public SchemaDetailForm(DataContextModel context, SchemaModel schema)
{
InitializeComponent();
this.schema = schema;
this.context = context;
dataTypeEdit.Items.AddRange(standardColumnTypes);
dataTypeEdit.DropDownRows = standardColumnTypes.Length;
columnPickerEdit.DataSource = schema.Columns;
schemaBindingSource.DataSource = schema;
schemaVGrid.DataSource = new[] { schema };
UpdateNames();
UpdateForeignSchemaEdit(true);
UpdateColumnSqlNameEdit();
schema.PropertyChanged += schema_PropertyChanged;
context.Schemas.ListChanged += Schemas_ListChanged;
columnsView.BestFitColumns();
columnPickerEdit.View.BestFitColumns();
}
public ColumnModel(SchemaModel owner)
{
if (owner == null) throw new ArgumentNullException("owner");
Owner = owner;
}
private void addSchema_ItemClick(object sender, ItemClickEventArgs e)
{
var newSchema = new SchemaModel(context) { Name = "Table" + (context.Schemas.Count + 1) };
context.Schemas.Add(newSchema);
new SchemaDetailForm(context, newSchema) { MdiParent = this }.Show();
}
void AddSchemaTree(SchemaModel schema, TreeListNode parentNode)
{
var node = tree.AppendNode(new object[] { schema.Name, schema.SqlSchemaName, schema.IsExternal }, parentNode, schema);
foreach (var child in schema.ChildSchemas) {
AddSchemaTree(child, node);
}
}
static void WriteSchema(SchemaModel schema, IndentedTextWriter writer)
{
writer.WriteLine(@"///<summary>" + schema.RowClassDescription.EscapeXml() + @"</summary>");
writer.WriteLine(schema.RowClassVisibility.ToString().ToLowerInvariant() + " partial class " + schema.RowClassName + " : Row {");
writer.Indent++;
writer.WriteLine(@"///<summary>Creates a new " + schema.RowClassName.EscapeXml() + @" instance.</summary>");
writer.WriteLine("public " + schema.RowClassName + " () : base(Schema) { Initialize(); }");
writer.WriteLine("partial void Initialize();");
writer.WriteLine();
writer.WriteLine(@"///<summary>Creates a strongly-typed " + schema.Name.EscapeXml() + @" table.</summary>");
writer.WriteLine("public static TypedTable<" + schema.RowClassName + "> CreateTable() "
+ "{ return new TypedTable<" + schema.RowClassName + ">(Schema, () => new " + schema.RowClassName + "()); }");
writer.WriteLine();
foreach (var column in schema.Columns) {
writer.WriteLine(@"///<summary>Gets the schema's " + column.Name.EscapeXml() + @" column.</summary>");
writer.WriteLine("public static " + column.ColumnType.Name + " " + column.ColumnPropertyName + " { get; private set; }");
}
writer.WriteLine();
writer.WriteLine(@"///<summary>Gets the " + schema.Name.EscapeXml() + @" schema instance.</summary>");
writer.WriteLine("public static new TypedSchema<" + schema.RowClassName + "> Schema { get; private set; }");
writer.WriteLine(@"///<summary>Gets the SchemaMapping that maps this schema to the SQL Server " + schema.SqlName.EscapeXml() + @" table.</summary>");
writer.WriteLine("public static SchemaMapping SchemaMapping { get; private set; }");
writer.WriteLine();
writer.WriteGeneratedCodeAttribute();
writer.WriteLine("static " + schema.RowClassName + "() {");
writer.Indent++;
writer.WriteLine("#region Create Schema");
writer.WriteLine("Schema = new TypedSchema<" + schema.RowClassName + ">(" + schema.Name.Quote() + ");");
foreach (var column in schema.Columns) {
writer.WriteLine();
WriteColumnCreation(column, writer);
}
writer.WriteLine("#endregion");
writer.WriteLine();
writer.WriteLine("#region Create SchemaMapping");
writer.WriteLine("SchemaMapping = new SchemaMapping(Schema, false);");
writer.WriteLine("SchemaMapping.SqlName = " + schema.SqlName.Quote() + ";");
writer.WriteLine("SchemaMapping.SqlSchemaName = " + schema.SqlSchemaName.Quote() + ";");
writer.WriteLine();
foreach (var column in schema.Columns.Where(c => c.GenerateSqlMapping))
writer.WriteLine("SchemaMapping.Columns.AddMapping(" + column.PropertyName + "Column, " + column.SqlName.Quote() + ");");
writer.WriteLine("#endregion");
writer.WriteLine("SchemaMapping.SetPrimaryMapping(SchemaMapping);");
writer.Indent--;
writer.WriteLine("}");
writer.WriteLine();
writer.WriteLine(@"///<summary>Gets the typed table that contains this row, if any.</summary>");
writer.WriteGeneratedCodeAttribute();
writer.WriteLine("public new TypedTable<" + schema.RowClassName + "> Table { get { return (TypedTable<" + schema.RowClassName + ">)base.Table; } }");
writer.WriteLine("#region Value Properties");
foreach (var column in schema.Columns)
WriteValueProperty(column, writer);
writer.WriteLine("#endregion");
if (schema.ChildSchemas.Any()) {
writer.WriteLine();
writer.WriteLine("#region ChildRows Properties");
//Support schemas with two foreign keys
//that reference the same parent schema
foreach (var foreignColumn in schema.ChildSchemas.Distinct().SelectMany(fs => fs.Columns.Where(c => c.ForeignSchema == schema))) {
//Example:
//public IChildRowCollection<Pledge> Pledges { get { return TypedChildRows<Pledge>(Pledge.PersonIdColumn); } }
writer.WriteLine(@"///<summary>" + foreignColumn.ForeignRelationPropertyDescription.EscapeXml() + @"</summary>");
writer.WriteLine(foreignColumn.Owner.RowClassVisibility.ToString().ToLowerInvariant()
+ " IChildRowCollection<" + foreignColumn.Owner.RowClassName + "> " + foreignColumn.ForeignRelationPropertyName
+ " { get { return TypedChildRows<" + foreignColumn.Owner.RowClassName + ">(" + foreignColumn.Owner.RowClassName + "." + foreignColumn.PropertyName + "Column); } }");
}
writer.WriteLine("#endregion");
}
writer.WriteLine();
writer.WriteLine("#region Partial Methods");
writer.WriteLine("partial void OnColumnChanged(Column column, object oldValue, object newValue);");
foreach (var column in schema.Columns.NonCalculated()) {
writer.WriteLine();
WriteColumnPartials(column, writer);
}
writer.WriteLine("#endregion");
writer.WriteLine();
writer.WriteLine("#region Column Callbacks");
#region ValidateValue
writer.WriteLine(@"///<summary>Checks whether a value would be valid for a given column in an attached row.</summary>");
writer.WriteLine(@"///<param name=""column"">The column containing the value.</param>");
writer.WriteLine(@"///<param name=""newValue"">The value to validate.</param>");
writer.WriteLine(@"///<returns>An error message, or null if the value is valid.</returns>");
writer.WriteLine(@"///<remarks>This method is overridden by typed rows to perform custom validation logic.</remarks>");
writer.WriteGeneratedCodeAttribute();
writer.WriteLine("public override string ValidateValue(Column column, object newValue) {");
writer.Indent++;
writer.WriteLine("string error = base.ValidateValue(column, newValue);");
writer.WriteLine("if (!String.IsNullOrEmpty(error)) return error;");
writer.WriteLine("Action<string> reporter = s => error = s;");
writer.WriteLine();
bool first = true;
foreach (var column in schema.Columns.NonCalculated()) {
if (first)
first = false;
else
writer.Write("} else ");
writer.WriteLine("if (column == " + column.PropertyName + "Column) {");
writer.Indent++;
writer.WriteLine("Validate" + column.PropertyName + "((" + column.ActualType + ")newValue, reporter);");
writer.WriteLine("if (!String.IsNullOrEmpty(error)) return error;");
writer.Indent--;
}
writer.WriteLine("}");
writer.WriteLine("return null;");
writer.Indent--;
writer.WriteLine("}");
#endregion
#region OnValueChanged
writer.WriteLine(@"///<summary>Processes an explicit change of a column value.</summary>");
writer.WriteGeneratedCodeAttribute();
writer.WriteLine("protected override void OnValueChanged(Column column, object oldValue, object newValue) {");
writer.Indent++;
writer.WriteLine("base.OnValueChanged(column, oldValue, newValue);");
writer.WriteLine("OnColumnChanged(column, oldValue, newValue);");
first = true;
foreach (var column in schema.Columns.NonCalculated()) {
if (first)
first = false;
else
writer.Write("else ");
writer.WriteLine("if (column == " + column.PropertyName + "Column)");
writer.WriteLine("\tOn" + column.PropertyName + "Changed((" + column.NullableType + ")oldValue, (" + column.NullableType + ")newValue);");
}
writer.Indent--;
writer.WriteLine("}");
#endregion
writer.WriteLine("#endregion");
writer.Indent--;
writer.WriteLine("}");
}
public ColumnList(SchemaModel schema)
{
this.schema = schema; AllowNew = true;
}
internal void RemoveChild(SchemaModel schema)
{
childSchemas.Remove(schema);
}
internal void AddChild(SchemaModel schema)
{
childSchemas.Add(schema);
}
public static IEnumerable<SchemaModel> ReadSchemas(DataContextModel owner, DBConnector database)
{
if (database == null) throw new ArgumentNullException("database");
List<SchemaModel> tables = new List<SchemaModel>();
List<Action> postColumnActions = new List<Action>();
Func<string, string, SchemaModel> Table = (schema, name) => //First look for a new table from SQL Server, then for an existing one.
String.IsNullOrEmpty(name) ? null : tables.SingleOrDefault(t => t.SqlSchemaName == schema && t.SqlName == name)
?? owner.Schemas.SingleOrDefault(t => t.SqlSchemaName == schema && t.SqlName == name);
using (var connection = database.OpenConnection()) {
#region Read Tables
using (var reader = database.ExecuteReader(TablesSql)) {
while (reader.Read()) {
var table = new SchemaModel(owner) {
Name = (string)reader["TableName"],
SqlName = (string)reader["TableName"],
SqlSchemaName = reader["SchemaName"] as string
};
if (Table(table.SqlSchemaName, table.SqlName) != null) continue; //TODO: Import column
string keyName = reader["PrimaryKeyName"] as string;
if (!String.IsNullOrEmpty(keyName)) {
postColumnActions.Add(
() => table.PrimaryKey = table.Columns.Single(c => c.SqlName == keyName)
);
}
tables.Add(table);
}
}
#endregion
using (var reader = database.ExecuteReader(ColumnsSql)) {
while (reader.Read()) {
var table = Table((string)reader["SchemaName"], (string)reader["TableName"]);
if (table == null) continue; //Skip tables without RowVersion columns
var name = (string)reader["ColumnName"];
if (table.Columns.Any(c => c.SqlName == name))
continue; //Don't add duplicate columns to existing tables.
table.Columns.Add(new ColumnModel(table) {
Name = name,
SqlName = name,
DataType = SqlTypes[(string)reader["DataType"]],
AllowNulls = 1 == (int)reader["AllowNulls"],
IsUnique = 1 == (int)reader["IsUnique"],
ForeignSchema = Table(reader["ForeignSchema"] as string, reader["ForeignTable"] as string)
});
}
}
}
postColumnActions.ForEach(a => a());
return tables;
}
static void WriteSchema(SchemaModel schema, IndentedTextWriter writer)
{
writer.WriteLine(@"///<summary>" + schema.RowClassDescription.EscapeXml() + @"</summary>");
writer.WriteLine(schema.RowClassVisibility.ToString().ToLowerInvariant() + " partial class " + schema.RowClassName + " : Row {");
writer.Indent++;
writer.WriteLine(@"///<summary>Creates a new " + schema.RowClassName.EscapeXml() + @" instance.</summary>");
writer.WriteLine("public " + schema.RowClassName + " () : base(Schema) { Initialize(); }");
writer.WriteLine("partial void Initialize();");
writer.WriteLine();
writer.WriteLine(@"///<summary>Creates a strongly-typed " + schema.Name.EscapeXml() + @" table.</summary>");
writer.WriteLine("public static TypedTable<" + schema.RowClassName + "> CreateTable() "
+ "{ return new TypedTable<" + schema.RowClassName + ">(Schema, () => new " + schema.RowClassName + "()); }");
writer.WriteLine();
foreach (var column in schema.Columns)
{
writer.WriteLine(@"///<summary>Gets the schema's " + column.Name.EscapeXml() + @" column.</summary>");
writer.WriteLine("public static " + column.ColumnType.Name + " " + column.ColumnPropertyName + " { get; private set; }");
}
writer.WriteLine();
writer.WriteLine(@"///<summary>Gets the " + schema.Name.EscapeXml() + @" schema instance.</summary>");
writer.WriteLine("public static new TypedSchema<" + schema.RowClassName + "> Schema { get; private set; }");
writer.WriteLine(@"///<summary>Gets the SchemaMapping that maps this schema to the SQL Server " + schema.SqlName.EscapeXml() + @" table.</summary>");
writer.WriteLine("public static SchemaMapping SchemaMapping { get; private set; }");
writer.WriteLine();
writer.WriteGeneratedCodeAttribute();
writer.WriteLine("static " + schema.RowClassName + "() {");
writer.Indent++;
writer.WriteLine("#region Create Schema");
writer.WriteLine("Schema = new TypedSchema<" + schema.RowClassName + ">(" + schema.Name.Quote() + ");");
foreach (var column in schema.Columns)
{
writer.WriteLine();
WriteColumnCreation(column, writer);
}
writer.WriteLine("#endregion");
writer.WriteLine();
writer.WriteLine("#region Create SchemaMapping");
writer.WriteLine("SchemaMapping = new SchemaMapping(Schema, false);");
writer.WriteLine("SchemaMapping.SqlName = " + schema.SqlName.Quote() + ";");
writer.WriteLine("SchemaMapping.SqlSchemaName = " + schema.SqlSchemaName.Quote() + ";");
writer.WriteLine();
foreach (var column in schema.Columns.Where(c => c.GenerateSqlMapping))
{
writer.WriteLine("SchemaMapping.Columns.AddMapping(" + column.PropertyName + "Column, " + column.SqlName.Quote() + ");");
}
writer.WriteLine("#endregion");
writer.WriteLine("SchemaMapping.SetPrimaryMapping(SchemaMapping);");
writer.Indent--;
writer.WriteLine("}");
writer.WriteLine();
writer.WriteLine(@"///<summary>Gets the typed table that contains this row, if any.</summary>");
writer.WriteGeneratedCodeAttribute();
writer.WriteLine("public new TypedTable<" + schema.RowClassName + "> Table { get { return (TypedTable<" + schema.RowClassName + ">)base.Table; } }");
writer.WriteLine("#region Value Properties");
foreach (var column in schema.Columns)
{
WriteValueProperty(column, writer);
}
writer.WriteLine("#endregion");
if (schema.ChildSchemas.Any())
{
writer.WriteLine();
writer.WriteLine("#region ChildRows Properties");
//Support schemas with two foreign keys
//that reference the same parent schema
foreach (var foreignColumn in schema.ChildSchemas.Distinct().SelectMany(fs => fs.Columns.Where(c => c.ForeignSchema == schema)))
{
//Example:
//public IChildRowCollection<Pledge> Pledges { get { return TypedChildRows<Pledge>(Pledge.PersonIdColumn); } }
writer.WriteLine(@"///<summary>" + foreignColumn.ForeignRelationPropertyDescription.EscapeXml() + @"</summary>");
writer.WriteLine(foreignColumn.Owner.RowClassVisibility.ToString().ToLowerInvariant()
+ " IChildRowCollection<" + foreignColumn.Owner.RowClassName + "> " + foreignColumn.ForeignRelationPropertyName
+ " { get { return TypedChildRows<" + foreignColumn.Owner.RowClassName + ">(" + foreignColumn.Owner.RowClassName + "." + foreignColumn.PropertyName + "Column); } }");
}
writer.WriteLine("#endregion");
}
writer.WriteLine();
writer.WriteLine("#region Partial Methods");
writer.WriteLine("partial void OnColumnChanged(Column column, object oldValue, object newValue);");
foreach (var column in schema.Columns.NonCalculated())
{
writer.WriteLine();
WriteColumnPartials(column, writer);
}
writer.WriteLine("#endregion");
writer.WriteLine();
writer.WriteLine("#region Column Callbacks");
#region ValidateValue
writer.WriteLine(@"///<summary>Checks whether a value would be valid for a given column in an attached row.</summary>");
writer.WriteLine(@"///<param name=""column"">The column containing the value.</param>");
writer.WriteLine(@"///<param name=""newValue"">The value to validate.</param>");
writer.WriteLine(@"///<returns>An error message, or null if the value is valid.</returns>");
writer.WriteLine(@"///<remarks>This method is overridden by typed rows to perform custom validation logic.</remarks>");
writer.WriteGeneratedCodeAttribute();
writer.WriteLine("public override string ValidateValue(Column column, object newValue) {");
writer.Indent++;
writer.WriteLine("string error = base.ValidateValue(column, newValue);");
writer.WriteLine("if (!String.IsNullOrEmpty(error)) return error;");
writer.WriteLine("Action<string> reporter = s => error = s;");
writer.WriteLine();
bool first = true;
foreach (var column in schema.Columns.NonCalculated())
{
if (first)
{
first = false;
}
else
{
writer.Write("} else ");
}
writer.WriteLine("if (column == " + column.PropertyName + "Column) {");
writer.Indent++;
writer.WriteLine("Validate" + column.PropertyName + "((" + column.ActualType + ")newValue, reporter);");
writer.WriteLine("if (!String.IsNullOrEmpty(error)) return error;");
writer.Indent--;
}
writer.WriteLine("}");
writer.WriteLine("return null;");
writer.Indent--;
writer.WriteLine("}");
#endregion
#region OnValueChanged
writer.WriteLine(@"///<summary>Processes an explicit change of a column value.</summary>");
writer.WriteGeneratedCodeAttribute();
writer.WriteLine("protected override void OnValueChanged(Column column, object oldValue, object newValue) {");
writer.Indent++;
writer.WriteLine("base.OnValueChanged(column, oldValue, newValue);");
writer.WriteLine("OnColumnChanged(column, oldValue, newValue);");
first = true;
foreach (var column in schema.Columns.NonCalculated())
{
if (first)
{
first = false;
}
else
{
writer.Write("else ");
}
writer.WriteLine("if (column == " + column.PropertyName + "Column)");
writer.WriteLine("\tOn" + column.PropertyName + "Changed((" + column.NullableType + ")oldValue, (" + column.NullableType + ")newValue);");
}
writer.Indent--;
writer.WriteLine("}");
#endregion
writer.WriteLine("#endregion");
writer.Indent--;
writer.WriteLine("}");
}
