public override IRelationConfig AutoExpression()
{
if (this.LeftTable.Flags.HasFlag(TableFlags.AutoColumns) && this.LeftTable.PrimaryKey != null)
{
this.Expression.Left = this.Expression.CreateColumn(this.LeftTable.PrimaryKey);
}
if (this.RightTable.Flags.HasFlag(TableFlags.AutoColumns) && this.LeftTable.PrimaryKey != null)
{
var column = default(IColumnConfig);
if (this.RightTable.TryCreateColumn(
ColumnConfig.By(
Conventions.RelationColumn(this.LeftTable),
Factories.Type.Create(
TypeConfig.By(
this.LeftTable.PrimaryKey.ColumnType.Type,
this.LeftTable.PrimaryKey.ColumnType.Size,
this.LeftTable.PrimaryKey.ColumnType.Precision,
this.LeftTable.PrimaryKey.ColumnType.Scale,
this.Flags.HasFlag(RelationFlags.AllowNull)
)
)
),
out column
))
{
this.Expression.Right = this.Expression.CreateColumn(column);
column.IsForeignKey = true;
}
}
return(this);
}
public IIndexConfig Create(ITableConfig table, string identifier, IEnumerable <string> columnNames, IndexFlags?flags)
{
var columns = columnNames.Select(
columnName => table.GetColumn(ColumnConfig.By(columnName, ColumnFlags.None))
).Where(column => column != null);
return(this.Create(table, identifier, columns, flags));
}
public override IRelationConfig AutoExpression()
{
var left = this.Expression.SetLeft(this.CreateConstraint());
var right = this.Expression.SetRight(this.CreateConstraint());
if (this.LeftTable.Flags.HasFlag(TableFlags.AutoColumns) && this.LeftTable.PrimaryKey != null)
{
var column = default(IColumnConfig);
left.Left = this.Expression.CreateColumn(this.LeftTable.PrimaryKey);
if (this.MappingTable.TryCreateColumn(
ColumnConfig.By(
Conventions.RelationColumn(this.LeftTable),
Factories.Type.Create(
TypeConfig.By(
this.LeftTable.PrimaryKey.ColumnType.Type,
this.LeftTable.PrimaryKey.ColumnType.Size,
this.LeftTable.PrimaryKey.ColumnType.Precision,
this.LeftTable.PrimaryKey.ColumnType.Scale,
this.Flags.HasFlag(RelationFlags.AllowNull)
)
)
),
out column
))
{
left.Right = this.Expression.CreateColumn(column);
column.IsForeignKey = true;
}
}
this.Expression.Operator = this.Expression.CreateOperator(QueryOperator.AndAlso);
if (this.RightTable.Flags.HasFlag(TableFlags.AutoColumns) && this.RightTable.PrimaryKey != null)
{
var column = default(IColumnConfig);
right.Left = this.Expression.CreateColumn(this.RightTable.PrimaryKey);
if (this.MappingTable.TryCreateColumn(
ColumnConfig.By(
Conventions.RelationColumn(this.RightTable),
Factories.Type.Create(
TypeConfig.By(
this.RightTable.PrimaryKey.ColumnType.Type,
this.RightTable.PrimaryKey.ColumnType.Size,
this.RightTable.PrimaryKey.ColumnType.Precision,
this.RightTable.PrimaryKey.ColumnType.Scale,
this.Flags.HasFlag(RelationFlags.AllowNull)
)
)
),
out column
))
{
right.Right = this.Expression.CreateColumn(column);
column.IsForeignKey = true;
}
}
return(this);
}
public static IColumnConfig Column(this ITableConfig table, PropertyInfo property, ColumnFlags?flags = null)
{
var selector = ColumnConfig.By(property, flags);
var column = table.GetColumn(selector);
if (column == null)
{
column = table.CreateColumn(selector);
}
return(column);
}
public static IColumnConfig Column(this ITableConfig table, string columnName, ColumnFlags?flags = null)
{
var selector = ColumnConfig.By(columnName, flags);
var column = table.GetColumn(selector);
if (column == null)
{
column = table.CreateColumn(selector);
}
return(column);
}
public void CommonTableExpression_1()
{
switch (this.ProviderType)
{
case ProviderType.SqlCe:
Assert.Ignore("The provider does not support common table expressions.");
return;
}
var set = this.Database.Set <Test002>(this.Transaction);
var data = new List <Test002>();
set.Clear();
set.AddRange(new[]
{
new Test002()
{
Name = "1"
},
new Test002()
{
Name = "2"
},
new Test002()
{
Name = "3"
}
});
var query = this.Database.QueryFactory.Build();
var subQuery = this.Database.QueryFactory.Build();
subQuery.Output.AddOperator(QueryOperator.Star);
subQuery.Source.AddTable(set.Table);
subQuery.Filter.AddColumn(
set.Table.GetColumn(ColumnConfig.By("Name"))
).Right = query.Filter.CreateConstant("2");
query.With.AddCommonTableExpression(new[] { subQuery, subQuery }).Alias = "Extent1";
query.Output.AddOperator(QueryOperator.Star);
query.Source.AddTable(
this.Database.Config.Transient.CreateTable(
TableConfig.By("Extent1", TableFlags.None)
)
);
set.Fetch = query;
foreach (var item in set)
{
Assert.AreEqual("2", item.Name);
}
}
protected virtual bool TryGetColumn(MemberInfo member, Expression expression, out IColumnConfig result)
{
var property = member as PropertyInfo;
if (property == null)
{
result = default(IColumnConfig);
return(false);
}
var table = this.Database.Config.GetTable(TableConfig.By(expression.Type));
if (table == null)
{
result = default(IColumnConfig);
return(false);
}
result = table.GetColumn(ColumnConfig.By(property));
return(result != null);
}
public IEnumerable <IColumnConfig> GetColumns(IDatabase database, ITableConfig table, ITransactionSource transaction = null)
{
var properties = new EntityPropertyEnumerator(table.TableType);
var columns = new List <IColumnConfig>();
foreach (var property in properties)
{
if (!ColumnValidator.Validate(database, property))
{
continue;
}
var column = Factories.Column.Create(table, ColumnConfig.By(property));
if (!ColumnValidator.Validate(database, table, column, transaction))
{
continue;
}
columns.Add(column);
}
return(columns);
}
public IRelationConfig Create<T, TRelation>(ITableConfig<T> table, string identifier, PropertyInfo property, RelationFlags? flags)
{
var elementType = default(Type);
var attribute = property.GetCustomAttribute<RelationAttribute>(true) ?? new RelationAttribute()
{
Identifier = identifier
};
if (string.IsNullOrEmpty(attribute.Identifier))
{
attribute.Identifier = string.Format("{0}_{1}", table.TableName, property.Name);
}
if (!attribute.IsFlagsSpecified)
{
if (flags.HasValue)
{
attribute.Flags = flags.Value;
}
else
{
attribute.Flags = Defaults.Relation.Flags;
}
}
var relation = default(IRelationConfig);
if (property.PropertyType.IsCollection(out elementType))
{
switch (attribute.Flags.EnsureMultiplicity(RelationFlags.OneToMany).GetMultiplicity())
{
case RelationFlags.OneToMany:
relation = (IRelationConfig)this.Members.Invoke(this, "CreateOneToMany", new[] { typeof(T), elementType }, table, attribute, property);
break;
case RelationFlags.ManyToMany:
relation = (IRelationConfig)this.Members.Invoke(this, "CreateManyToMany", new[] { typeof(T), elementType }, table, attribute, property);
break;
default:
throw new NotImplementedException();
}
}
else
{
relation = this.CreateOneToOne<T, TRelation>(table, attribute, property);
}
if (!string.IsNullOrEmpty(attribute.LeftColumn))
{
relation.Expression.Left = relation.Expression.CreateColumn(
relation.LeftTable.CreateColumn(
ColumnConfig.By(
attribute.LeftColumn,
Factories.Type.Create(TypeConfig.By(property))
)
).With(column => column.IsForeignKey = true)
);
}
if (!string.IsNullOrEmpty(attribute.RightColumn))
{
relation.Expression.Right = relation.Expression.CreateColumn(
relation.RightTable.CreateColumn(
ColumnConfig.By(
attribute.RightColumn,
Factories.Type.Create(TypeConfig.By(property))
)
).With(column => column.IsForeignKey = true)
);
}
return relation;
}
public void OneTimeSetUp()
{
var provider = this.CreateProvider();
try
{
provider.DeleteDatabase(this.InitialCatalog);
}
catch
{
//Nothing to do.
}
provider.CreateDatabase(this.InitialCatalog);
this.Database = this.CreateDatabase();
var tables = new[]
{
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test001), TableFlags.AutoColumns | TableFlags.AutoIndexes)
).With(table =>
{
table.CreateColumn(ColumnConfig.By("Field4", ColumnFlags.None)).With(column =>
{
column.ColumnType = Factories.Type.Create(TypeConfig.By(DbType.Int32, isNullable: true));
});
table.CreateColumn(ColumnConfig.By("Field5", ColumnFlags.None)).With(column =>
{
column.ColumnType = Factories.Type.Create(TypeConfig.By(DbType.Double, isNullable: true));
});
}),
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test003), TableFlags.AutoColumns | TableFlags.AutoIndexes)
).With(table =>
{
table.CreateColumn(ColumnConfig.By("Test002_Id", ColumnFlags.None)).With(column =>
{
column.ColumnType = Factories.Type.Create(TypeConfig.By(DbType.Int32, isNullable: true));
});
}),
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test004), TableFlags.AutoColumns | TableFlags.AutoIndexes)
).With(table =>
{
table.CreateColumn(ColumnConfig.By("Test002_Id", ColumnFlags.None)).With(column =>
{
column.ColumnType = Factories.Type.Create(TypeConfig.By(DbType.Int32, isNullable: true));
});
}),
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test002), TableFlags.AutoColumns | TableFlags.AutoIndexes | TableFlags.AutoRelations)
).With(table =>
{
table.CreateColumn(ColumnConfig.By("Version", ColumnFlags.None)).With(column =>
{
column.ColumnType = Factories.Type.Create(TypeConfig.By(DbType.Binary, size: 8, isNullable: true));
});
}),
this.Database.Config.Transient.CreateTable(
TableConfig.By(
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test002), TableFlags.AutoColumns)
),
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test004), TableFlags.AutoColumns)
),
TableFlags.AutoColumns | TableFlags.AutoRelations
)
),
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test005), TableFlags.AutoColumns | TableFlags.AutoIndexes)
),
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test006), TableFlags.AutoColumns | TableFlags.AutoIndexes)
),
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test008), TableFlags.AutoColumns | TableFlags.AutoIndexes)
).With(table =>
{
table.CreateColumn(ColumnConfig.By("Test007_Id", ColumnFlags.None)).With(column =>
{
column.ColumnType = Factories.Type.Create(TypeConfig.By(DbType.Guid, isNullable: true));
});
}),
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test009), TableFlags.AutoColumns | TableFlags.AutoIndexes)
).With(table =>
{
table.CreateColumn(ColumnConfig.By("Test007_Id", ColumnFlags.None)).With(column =>
{
column.ColumnType = Factories.Type.Create(TypeConfig.By(DbType.Guid, isNullable: true));
});
}),
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test007), TableFlags.AutoColumns | TableFlags.AutoIndexes | TableFlags.AutoRelations)
),
this.Database.Config.Transient.CreateTable(
TableConfig.By(
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test007), TableFlags.AutoColumns)
),
this.Database.Config.Transient.CreateTable(
TableConfig.By(typeof(Test009), TableFlags.AutoColumns)
),
TableFlags.AutoColumns | TableFlags.AutoRelations
)
)
};
foreach (var table in tables)
{
var query = this.Database.SchemaFactory.Add(table, Defaults.Schema.Flags).Build();
this.Database.Execute(query);
this.Database.Schema.Reset();
}
}
