/// <summary>
/// Returns <see cref="IValueConverter"/> for specific column.
/// </summary>
public virtual IValueConverter?GetValueConverter(ColumnDescriptor columnDescriptor)
{
if (ValueConverter != null)
{
return(ValueConverter);
}
if (ConverterType == null)
{
return(null);
}
var dynamicConverter = (IValueConverter)TypeAccessor.GetAccessor(ConverterType).CreateInstance();
return(dynamicConverter);
}
void SetColumn(ColumnAttribute attr)
{
if (attr.MemberName == null)
{
throw new LinqToDBException("The Column attribute of the '{0}' type must have MemberName.".Args(TypeAccessor.Type));
}
if (attr.MemberName.IndexOf('.') < 0)
{
var ex = TypeAccessor[attr.MemberName];
var cd = new ColumnDescriptor(_mappingSchema, attr, ex);
Columns.Add(cd);
_columnNames.Add(attr.MemberName, cd);
}
else
{
var cd = new ColumnDescriptor(_mappingSchema, attr, new MemberAccessor(TypeAccessor, attr.MemberName));
Columns.Add(cd);
_columnNames.Add(attr.MemberName, cd);
}
}
void Init(MappingSchema mappingSchema)
{
var ta = mappingSchema.GetAttribute <TableAttribute>(TypeAccessor.Type, a => a.Configuration);
if (ta != null)
{
TableName = ta.Name;
SchemaName = ta.Schema;
DatabaseName = ta.Database;
IsColumnAttributeRequired = ta.IsColumnAttributeRequired;
}
if (TableName == null)
{
TableName = TypeAccessor.Type.Name;
if (TypeAccessor.Type.IsInterfaceEx() && TableName.Length > 1 && TableName[0] == 'I')
{
TableName = TableName.Substring(1);
}
}
var attrs = new List <ColumnAttribute>();
foreach (var member in TypeAccessor.Members)
{
var aa = mappingSchema.GetAttribute <AssociationAttribute>(TypeAccessor.Type, member.MemberInfo, attr => attr.Configuration);
if (aa != null)
{
Associations.Add(new AssociationDescriptor(
TypeAccessor.Type, member.MemberInfo, aa.GetThisKeys(), aa.GetOtherKeys(), aa.ExpressionPredicate, aa.Storage, aa.CanBeNull));
continue;
}
var ca = mappingSchema.GetAttribute <ColumnAttribute>(TypeAccessor.Type, member.MemberInfo, attr => attr.Configuration);
if (ca != null)
{
if (ca.IsColumn)
{
if (ca.MemberName != null)
{
attrs.Add(new ColumnAttribute(member.Name, ca));
}
else
{
var cd = new ColumnDescriptor(mappingSchema, ca, member);
Columns.Add(cd);
_columnNames.Add(member.Name, cd);
}
}
}
else if (
!IsColumnAttributeRequired && mappingSchema.IsScalarType(member.Type) ||
mappingSchema.GetAttribute <IdentityAttribute>(TypeAccessor.Type, member.MemberInfo, attr => attr.Configuration) != null ||
mappingSchema.GetAttribute <PrimaryKeyAttribute>(TypeAccessor.Type, member.MemberInfo, attr => attr.Configuration) != null)
{
var cd = new ColumnDescriptor(mappingSchema, new ColumnAttribute(), member);
Columns.Add(cd);
_columnNames.Add(member.Name, cd);
}
else
{
var caa = mappingSchema.GetAttribute <ColumnAliasAttribute>(TypeAccessor.Type, member.MemberInfo, attr => attr.Configuration);
if (caa != null)
{
if (Aliases == null)
{
Aliases = new Dictionary <string, string>();
}
Aliases.Add(member.Name, caa.MemberName);
}
}
}
var typeColumnAttrs = mappingSchema.GetAttributes <ColumnAttribute>(TypeAccessor.Type, a => a.Configuration);
foreach (var attr in typeColumnAttrs.Concat(attrs))
{
if (attr.IsColumn)
{
SetColumn(attr, mappingSchema);
}
}
}
/// <summary>
/// Check if object contains values that should be skipped.
/// </summary>
/// <param name="obj">The object to check.</param>
/// <param name="entityDescriptor">The entity descriptor.</param>
/// <param name="columnDescriptor">The column descriptor.</param>
/// <returns><c>true</c> if object should be skipped for the operation.</returns>
public override bool ShouldSkip(object obj, EntityDescriptor entityDescriptor, ColumnDescriptor columnDescriptor)
{
return(Values?.Contains(columnDescriptor.MemberAccessor.Getter(obj)) ?? false);
}
void SetColumn(ColumnAttribute attr)
{
if (attr.MemberName == null)
throw new LinqToDBException("The Column attribute of the '{0}' type must have MemberName.".Args(TypeAccessor.Type));
if (attr.MemberName.IndexOf('.') < 0)
{
var ex = TypeAccessor[attr.MemberName];
var cd = new ColumnDescriptor(_mappingSchema, attr, ex);
Columns.Add(cd);
_columnNames.Add(attr.MemberName, cd);
}
else
{
var cd = new ColumnDescriptor(_mappingSchema, attr, new MemberAccessor(TypeAccessor, attr.MemberName));
Columns.Add(cd);
_columnNames.Add(attr.MemberName, cd);
}
}
void Init()
{
var ta = _mappingSchema.GetAttribute<TableAttribute>(TypeAccessor.Type, a => a.Configuration);
if (ta != null)
{
TableName = ta.Name;
SchemaName = ta.Schema;
DatabaseName = ta.Database;
IsColumnAttributeRequired = ta.IsColumnAttributeRequired;
}
if (TableName == null)
{
TableName = TypeAccessor.Type.Name;
if (TypeAccessor.Type.IsInterface && TableName.Length > 1 && TableName[0] == 'I')
TableName = TableName.Substring(1);
}
var attrs = new List<ColumnAttribute>();
foreach (var member in TypeAccessor.Members)
{
var aa = _mappingSchema.GetAttribute<AssociationAttribute>(member.MemberInfo, attr => attr.Configuration);
if (aa != null)
{
Associations.Add(new AssociationDescriptor(
TypeAccessor.Type, member.MemberInfo, aa.GetThisKeys(), aa.GetOtherKeys(), aa.Storage, aa.CanBeNull));
continue;
}
var ca = _mappingSchema.GetAttribute<ColumnAttribute>(member.MemberInfo, attr => attr.Configuration);
if (ca != null)
{
if (ca.IsColumn)
{
if (ca.MemberName != null)
{
attrs.Add(new ColumnAttribute(member.Name, ca));
}
else
{
var cd = new ColumnDescriptor(_mappingSchema, ca, member);
Columns.Add(cd);
_columnNames.Add(member.Name, cd);
}
}
}
else if (
!IsColumnAttributeRequired && _mappingSchema.IsScalarType(member.Type) ||
_mappingSchema.GetAttribute<IdentityAttribute> (member.MemberInfo, attr => attr.Configuration) != null ||
_mappingSchema.GetAttribute<PrimaryKeyAttribute>(member.MemberInfo, attr => attr.Configuration) != null)
{
var cd = new ColumnDescriptor(_mappingSchema, new ColumnAttribute(), member);
Columns.Add(cd);
_columnNames.Add(member.Name, cd);
}
}
var typeColumnAttrs = _mappingSchema.GetAttributes<ColumnAttribute>(TypeAccessor.Type, a => a.Configuration);
foreach (var attr in typeColumnAttrs.Concat(attrs))
if (attr.IsColumn)
SetColumn(attr);
}
/// <summary> /// Check if object contains values that should be skipped. /// </summary> /// <param name="obj">The object to check.</param> /// <param name="entityDescriptor">The entity descriptor.</param> /// <param name="columnDescriptor">The column descriptor.</param> /// <returns><c>true</c> if object should be skipped for the operation.</returns> public abstract bool ShouldSkip(object obj, EntityDescriptor entityDescriptor, ColumnDescriptor columnDescriptor);