internal MetaTable(MetaModel model, TableProvider provider, ContextConfiguration configuration)
{
bool scaffoldAllTables;
this.model = model;
Provider = provider;
if (configuration != null)
{
ScaffoldAllTables = scaffoldAllTables = configuration.ScaffoldAllTables;
Func <Type, TypeDescriptionProvider> factory = configuration.MetadataProviderFactory;
if (factory != null)
{
Type t = EntityType;
TypeDescriptionProvider p = factory(t);
if (p != null)
{
TypeDescriptor.AddProvider(p, t);
}
}
}
else
{
scaffoldAllTables = false;
}
ScaffoldTableAttribute attr = null;
MetaModel.GetDataFieldAttribute <ScaffoldTableAttribute> (Attributes, ref attr);
Scaffold = attr != null ? attr.Scaffold : scaffoldAllTables;
DataContextType = provider.DataModel.ContextType;
var columns = new List <MetaColumn> ();
var primaryKeyColumns = new List <MetaColumn> ();
var foreignKeyColumnNames = new List <string> ();
MetaColumn mc;
foreach (var c in provider.Columns)
{
// this seems to be the determining factor on whether we create
// MetaColumn or MetaForeignKeyColumn/MetaChildrenColumn. As the
// determination depends upon the relationship direction, we must
// check that using the ColumnProvider's association, if any.
//
// http://msdn.microsoft.com/en-us/library/system.web.dynamicdata.metaforeignkeycolumn.aspx
// http://msdn.microsoft.com/en-us/library/system.web.dynamicdata.metachildrencolumn.aspx
// http://forums.asp.net/t/1426992.aspx
var association = c.Association;
if (association == null)
{
mc = new MetaColumn(this, c);
}
else
{
var dir = association.Direction;
if (dir == AssociationDirection.OneToOne || dir == AssociationDirection.ManyToOne)
{
mc = new MetaForeignKeyColumn(this, c);
}
else
{
mc = new MetaChildrenColumn(this, c);
}
}
columns.Add(mc);
if (c.IsPrimaryKey)
{
primaryKeyColumns.Add(mc);
}
if (mc is MetaForeignKeyColumn)
{
foreignKeyColumnNames.Add(c.Name);
}
}
Columns = new ReadOnlyCollection <MetaColumn> (columns);
PrimaryKeyColumns = new ReadOnlyCollection <MetaColumn> (primaryKeyColumns);
if (foreignKeyColumnNames.Count == 0)
{
ForeignKeyColumnsNames = String.Empty;
}
else
{
ForeignKeyColumnsNames = String.Join(",", foreignKeyColumnNames.ToArray());
}
HasPrimaryKey = primaryKeyColumns.Count > 0;
// See http://forums.asp.net/t/1388561.aspx
//
// Also, http://forums.asp.net/t/1307243.aspx - that seems to be out of
// scope for us, though (at least for now)
IsReadOnly = primaryKeyColumns.Count == 0;
// FIXME: fill more properties.
}
internal MetaTable (MetaModel model, TableProvider provider, ContextConfiguration configuration)
{
bool scaffoldAllTables;
this.model = model;
Provider = provider;
if (configuration != null) {
ScaffoldAllTables = scaffoldAllTables = configuration.ScaffoldAllTables;
Func <Type, TypeDescriptionProvider> factory = configuration.MetadataProviderFactory;
if (factory != null) {
Type t = EntityType;
TypeDescriptionProvider p = factory (t);
if (p != null)
TypeDescriptor.AddProvider (p, t);
}
} else
scaffoldAllTables = false;
ScaffoldTableAttribute attr = null;
MetaModel.GetDataFieldAttribute <ScaffoldTableAttribute> (Attributes, ref attr);
Scaffold = attr != null ? attr.Scaffold : scaffoldAllTables;
DataContextType = provider.DataModel.ContextType;
var columns = new List <MetaColumn> ();
var primaryKeyColumns = new List <MetaColumn> ();
var foreignKeyColumnNames = new List <string> ();
MetaColumn mc;
foreach (var c in provider.Columns) {
// this seems to be the determining factor on whether we create
// MetaColumn or MetaForeignKeyColumn/MetaChildrenColumn. As the
// determination depends upon the relationship direction, we must
// check that using the ColumnProvider's association, if any.
//
// http://msdn.microsoft.com/en-us/library/system.web.dynamicdata.metaforeignkeycolumn.aspx
// http://msdn.microsoft.com/en-us/library/system.web.dynamicdata.metachildrencolumn.aspx
// http://forums.asp.net/t/1426992.aspx
var association = c.Association;
if (association == null)
mc = new MetaColumn (this, c);
else {
var dir = association.Direction;
if (dir == AssociationDirection.OneToOne || dir == AssociationDirection.ManyToOne)
mc = new MetaForeignKeyColumn (this, c);
else
mc = new MetaChildrenColumn (this, c);
}
columns.Add (mc);
if (c.IsPrimaryKey)
primaryKeyColumns.Add (mc);
if (mc is MetaForeignKeyColumn)
foreignKeyColumnNames.Add (c.Name);
}
Columns = new ReadOnlyCollection <MetaColumn> (columns);
PrimaryKeyColumns = new ReadOnlyCollection <MetaColumn> (primaryKeyColumns);
if (foreignKeyColumnNames.Count == 0)
ForeignKeyColumnsNames = String.Empty;
else
ForeignKeyColumnsNames = String.Join (",", foreignKeyColumnNames.ToArray ());
HasPrimaryKey = primaryKeyColumns.Count > 0;
// See http://forums.asp.net/t/1388561.aspx
//
// Also, http://forums.asp.net/t/1307243.aspx - that seems to be out of
// scope for us, though (at least for now)
IsReadOnly = primaryKeyColumns.Count == 0;
// FIXME: fill more properties.
}
