/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="ca">Attribute to clone.</param>
internal ColumnAttribute(ColumnAttribute ca)
{
MemberName = ca.MemberName;
Configuration = ca.Configuration;
Name = ca.Name;
DataType = ca.DataType;
DbType = ca.DbType;
Storage = ca.Storage;
IsDiscriminator = ca.IsDiscriminator;
SkipOnEntityFetch = ca.SkipOnEntityFetch;
PrimaryKeyOrder = ca.PrimaryKeyOrder;
IsColumn = ca.IsColumn;
CreateFormat = ca.CreateFormat;
if (ca.HasSkipOnInsert())
{
SkipOnInsert = ca.SkipOnInsert;
}
if (ca.HasSkipOnUpdate())
{
SkipOnUpdate = ca.SkipOnUpdate;
}
if (ca.HasCanBeNull())
{
CanBeNull = ca.CanBeNull;
}
if (ca.HasIsIdentity())
{
IsIdentity = ca.IsIdentity;
}
if (ca.HasIsPrimaryKey())
{
IsPrimaryKey = ca.IsPrimaryKey;
}
if (ca.HasLength())
{
Length = ca.Length;
}
if (ca.HasPrecision())
{
Precision = ca.Precision;
}
if (ca.HasScale())
{
Scale = ca.Scale;
}
if (ca.HasOrder())
{
Order = ca.Order;
}
}
/// <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;
}
}
}
}