protected virtual PropertyBuilder VisitColumn([NotNull] EntityTypeBuilder builder, [NotNull] ColumnModel column)
{
Check.NotNull(builder, nameof(builder));
Check.NotNull(column, nameof(column));
RelationalTypeMapping mapping;
if (!_typeMapper.TryGetMapping(column.DataType, out mapping) ||
mapping.ClrType == null)
{
Logger.LogWarning(RelationalDesignStrings.CannotFindTypeMappingForColumn(column.DisplayName, column.DataType));
return(null);
}
var clrType = (column.IsNullable) ? mapping.ClrType.MakeNullable() : mapping.ClrType;
var property = builder.Property(clrType, GetPropertyName(column));
if (_typeMapper.GetMapping(property.Metadata).DefaultTypeName != column.DataType &&
!string.IsNullOrWhiteSpace(column.DataType))
{
property.HasColumnType(column.DataType);
}
property.HasColumnName(column.Name);
if (column.MaxLength.HasValue)
{
property.HasMaxLength(column.MaxLength.Value);
}
if (column.ValueGenerated == ValueGenerated.OnAdd)
{
property.ValueGeneratedOnAdd();
}
if (column.ValueGenerated == ValueGenerated.OnAddOrUpdate)
{
property.ValueGeneratedOnAddOrUpdate();
}
if (column.DefaultValue != null)
{
property.HasDefaultValueSql(column.DefaultValue);
}
if (!column.PrimaryKeyOrdinal.HasValue)
{
property.IsRequired(!column.IsNullable);
}
return(property);
}