/// <summary>
/// Creates descriptor instance.
/// </summary>
/// <param name="mappingSchema">Mapping schema, associated with descriptor.</param>
/// <param name="columnAttribute">Column attribute, from which descriptor data should be extracted.</param>
/// <param name="memberAccessor">Column mapping member accessor.</param>
public ColumnDescriptor(MappingSchema mappingSchema, ColumnAttribute?columnAttribute, MemberAccessor memberAccessor)
{
MappingSchema = mappingSchema;
MemberAccessor = memberAccessor;
MemberInfo = memberAccessor.MemberInfo;
if (MemberInfo.IsFieldEx())
{
var fieldInfo = (FieldInfo)MemberInfo;
MemberType = fieldInfo.FieldType;
}
else if (MemberInfo.IsPropertyEx())
{
var propertyInfo = (PropertyInfo)MemberInfo;
MemberType = propertyInfo.PropertyType;
}
var dataType = mappingSchema.GetDataType(MemberType);
if (dataType.Type.DataType == DataType.Undefined)
{
dataType = mappingSchema.GetUnderlyingDataType(dataType.SystemType, out var _);
}
if (columnAttribute == null)
{
columnAttribute = new ColumnAttribute();
columnAttribute.DataType = dataType.Type.DataType;
columnAttribute.DbType = dataType.Type.DbType;
if (dataType.Type.Length != null)
{
columnAttribute.Length = dataType.Type.Length.Value;
}
if (dataType.Type.Precision != null)
{
columnAttribute.Precision = dataType.Type.Precision.Value;
}
if (dataType.Type.Scale != null)
{
columnAttribute.Scale = dataType.Type.Scale.Value;
}
}
else if (columnAttribute.DataType == DataType.Undefined || columnAttribute.DataType == dataType.Type.DataType)
{
if (dataType.Type.Length != null && !columnAttribute.HasLength())
{
columnAttribute.Length = dataType.Type.Length.Value;
}
if (dataType.Type.Precision != null && !columnAttribute.HasPrecision())
{
columnAttribute.Precision = dataType.Type.Precision.Value;
}
if (dataType.Type.Scale != null && !columnAttribute.HasScale())
{
columnAttribute.Scale = dataType.Type.Scale.Value;
}
}
MemberName = columnAttribute.MemberName ?? MemberInfo.Name;
ColumnName = columnAttribute.Name ?? MemberInfo.Name;
Storage = columnAttribute.Storage;
PrimaryKeyOrder = columnAttribute.PrimaryKeyOrder;
IsDiscriminator = columnAttribute.IsDiscriminator;
SkipOnEntityFetch = columnAttribute.SkipOnEntityFetch;
DataType = columnAttribute.DataType;
DbType = columnAttribute.DbType;
CreateFormat = columnAttribute.CreateFormat;
if (columnAttribute.HasLength())
{
Length = columnAttribute.Length;
}
if (columnAttribute.HasPrecision())
{
Precision = columnAttribute.Precision;
}
if (columnAttribute.HasScale())
{
Scale = columnAttribute.Scale;
}
if (columnAttribute.HasOrder())
{
Order = columnAttribute.Order;
}
if (Storage == null)
{
StorageType = MemberType;
StorageInfo = MemberInfo;
}
else
{
var expr = ExpressionHelper.PropertyOrField(Expression.Constant(null, MemberInfo.DeclaringType), Storage);
StorageType = expr.Type;
StorageInfo = expr.Member;
}
var defaultCanBeNull = false;
if (columnAttribute.HasCanBeNull())
{
CanBeNull = columnAttribute.CanBeNull;
}
else
{
var na = mappingSchema.GetAttribute <NullableAttribute>(MemberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (na != null)
{
CanBeNull = na.CanBeNull;
}
else
{
CanBeNull = mappingSchema.GetCanBeNull(MemberType);
defaultCanBeNull = true;
}
}
if (columnAttribute.HasIsIdentity())
{
IsIdentity = columnAttribute.IsIdentity;
}
else if (MemberName.IndexOf(".") < 0)
{
var a = mappingSchema.GetAttribute <IdentityAttribute>(MemberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (a != null)
{
IsIdentity = true;
}
}
SequenceName = mappingSchema.GetAttribute <SequenceNameAttribute>(memberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (SequenceName != null)
{
IsIdentity = true;
}
SkipOnInsert = columnAttribute.HasSkipOnInsert() ? columnAttribute.SkipOnInsert : IsIdentity;
SkipOnUpdate = columnAttribute.HasSkipOnUpdate() ? columnAttribute.SkipOnUpdate : IsIdentity;
if (defaultCanBeNull && IsIdentity)
{
CanBeNull = false;
}
if (columnAttribute.HasIsPrimaryKey())
{
IsPrimaryKey = columnAttribute.IsPrimaryKey;
}
else if (MemberName.IndexOf(".") < 0)
{
var a = mappingSchema.GetAttribute <PrimaryKeyAttribute>(MemberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (a != null)
{
IsPrimaryKey = true;
PrimaryKeyOrder = a.Order;
}
}
if (DbType == null || DataType == DataType.Undefined)
{
var a = mappingSchema.GetAttribute <DataTypeAttribute>(MemberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (a != null)
{
if (DbType == null)
{
DbType = a.DbType;
}
if (DataType == DataType.Undefined && a.DataType.HasValue)
{
DataType = a.DataType.Value;
}
}
}
if (MemberType.ToNullableUnderlying().IsEnum)
{
if (DataType == DataType.Undefined)
{
var enumtype = mappingSchema.GetDefaultFromEnumType(MemberType);
if (enumtype != null)
{
DataType = mappingSchema.GetDataType(enumtype).Type.DataType;
}
}
if (DataType == DataType.Undefined && MemberType.IsNullable())
{
var enumtype = mappingSchema.GetDefaultFromEnumType(MemberType.ToNullableUnderlying());
if (enumtype != null)
{
DataType = mappingSchema.GetDataType(enumtype).Type.DataType;
}
}
if (DataType == DataType.Undefined)
{
var enumtype = mappingSchema.GetDefaultFromEnumType(typeof(Enum));
if (enumtype != null)
{
DataType = mappingSchema.GetDataType(enumtype).Type.DataType;
}
}
if (DataType == DataType.Undefined)
{
DataType = mappingSchema.GetUnderlyingDataType(MemberType, out var canBeNull).Type.DataType;
if (canBeNull)
{
CanBeNull = canBeNull;
}
}
}
if (DataType == DataType.Undefined)
{
DataType = mappingSchema.GetDataType(MemberType).Type.DataType;
}
var skipValueAttributes = mappingSchema.GetAttributes <SkipBaseAttribute>(MemberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (skipValueAttributes.Length > 0)
{
SkipBaseAttributes = skipValueAttributes;
SkipModificationFlags = SkipBaseAttributes.Aggregate(SkipModification.None, (s, c) => s | c.Affects);
}
var vc = mappingSchema.GetAttribute <ValueConverterAttribute>(memberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (vc != null)
{
ValueConverter = vc.GetValueConverter(this);
}
}
/// <summary>
/// Creates descriptor instance.
/// </summary>
/// <param name="mappingSchema">Mapping schema, associated with descriptor.</param>
/// <param name="columnAttribute">Column attribute, from which descriptor data should be extracted.</param>
/// <param name="memberAccessor">Column mapping member accessor.</param>
public ColumnDescriptor(MappingSchema mappingSchema, ColumnAttribute columnAttribute, MemberAccessor memberAccessor)
{
MemberAccessor = memberAccessor;
MemberInfo = memberAccessor.MemberInfo;
if (MemberInfo.IsFieldEx())
{
var fieldInfo = (FieldInfo)MemberInfo;
MemberType = fieldInfo.FieldType;
}
else if (MemberInfo.IsPropertyEx())
{
var propertyInfo = (PropertyInfo)MemberInfo;
MemberType = propertyInfo.PropertyType;
}
MemberName = columnAttribute.MemberName ?? MemberInfo.Name;
ColumnName = columnAttribute.Name ?? MemberInfo.Name;
Storage = columnAttribute.Storage;
PrimaryKeyOrder = columnAttribute.PrimaryKeyOrder;
IsDiscriminator = columnAttribute.IsDiscriminator;
DataType = columnAttribute.DataType;
DbType = columnAttribute.DbType;
CreateFormat = columnAttribute.CreateFormat;
if (columnAttribute.HasLength())
{
Length = columnAttribute.Length;
}
if (columnAttribute.HasPrecision())
{
Precision = columnAttribute.Precision;
}
if (columnAttribute.HasScale())
{
Scale = columnAttribute.Scale;
}
if (columnAttribute.HasOrder())
{
Order = columnAttribute.Order;
}
if (Storage == null)
{
StorageType = MemberType;
StorageInfo = MemberInfo;
}
else
{
var expr = Expression.PropertyOrField(Expression.Constant(null, MemberInfo.DeclaringType), Storage);
StorageType = expr.Type;
StorageInfo = expr.Member;
}
var defaultCanBeNull = false;
if (columnAttribute.HasCanBeNull())
{
CanBeNull = columnAttribute.CanBeNull;
}
else
{
var na = mappingSchema.GetAttribute <NullableAttribute>(MemberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (na != null)
{
CanBeNull = na.CanBeNull;
}
else
{
CanBeNull = mappingSchema.GetCanBeNull(MemberType);
defaultCanBeNull = true;
}
}
if (columnAttribute.HasIsIdentity())
{
IsIdentity = columnAttribute.IsIdentity;
}
else if (MemberName.IndexOf(".") < 0)
{
var a = mappingSchema.GetAttribute <IdentityAttribute>(MemberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (a != null)
{
IsIdentity = true;
}
}
SequenceName = mappingSchema.GetAttribute <SequenceNameAttribute>(memberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (SequenceName != null)
{
IsIdentity = true;
}
SkipOnInsert = columnAttribute.HasSkipOnInsert() ? columnAttribute.SkipOnInsert : IsIdentity;
SkipOnUpdate = columnAttribute.HasSkipOnUpdate() ? columnAttribute.SkipOnUpdate : IsIdentity;
if (defaultCanBeNull && IsIdentity)
{
CanBeNull = false;
}
if (columnAttribute.HasIsPrimaryKey())
{
IsPrimaryKey = columnAttribute.IsPrimaryKey;
}
else if (MemberName.IndexOf(".") < 0)
{
var a = mappingSchema.GetAttribute <PrimaryKeyAttribute>(MemberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (a != null)
{
IsPrimaryKey = true;
PrimaryKeyOrder = a.Order;
}
}
if (DbType == null || DataType == DataType.Undefined)
{
var a = mappingSchema.GetAttribute <DataTypeAttribute>(MemberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (a != null)
{
if (DbType == null)
{
DbType = a.DbType;
}
if (DataType == DataType.Undefined && a.DataType.HasValue)
{
DataType = a.DataType.Value;
}
}
}
var skipValueAttributes = mappingSchema.GetAttributes <SkipBaseAttribute>(MemberAccessor.TypeAccessor.Type, MemberInfo, attr => attr.Configuration);
if (skipValueAttributes != null && skipValueAttributes.Length > 0)
{
SkipBaseAttributes = skipValueAttributes;
SkipModificationFlags = SkipBaseAttributes.Aggregate(SkipModification.None, (s, c) => s | c.Affects);
}
}
