internal ColumnAttributeByMember GetColumnAttribute()
{
var columnAttribute = new Linq.Mapping.ColumnAttribute
{
Name = columnName,
CanBeNull = canBeNull ??
TypeSystem.IsNullableType(Property.PropertyType) || !Property.PropertyType.IsValueType,
IsVersion = isConcurrencyToken ?? false
};
switch (databaseGeneratedOption)
{
case DatabaseGeneratedOption.Identity:
columnAttribute.AutoSync = AutoSync.OnInsert;
columnAttribute.IsDbGenerated = true;
break;
case DatabaseGeneratedOption.Computed:
columnAttribute.AutoSync = AutoSync.Always;
columnAttribute.IsDbGenerated = true;
break;
default:
columnAttribute.AutoSync = AutoSync.Never;
columnAttribute.IsDbGenerated = false;
break;
}
columnAttribute.DbType = BuildDbType(columnAttribute);
return(new ColumnAttributeByMember
{
Member = Property,
Attribute = columnAttribute
});
}
private string BuildDbType(Linq.Mapping.ColumnAttribute columnAttribute)
{
if (columnAttribute == null)
{
throw new ArgumentNullException("columnAttribute");
}
var dbTypeWithoutNullability = BuildDbTypeWithoutNullability(columnAttribute);
return(dbTypeWithoutNullability == null ?
null :
dbTypeWithoutNullability + (columnAttribute.CanBeNull ? " null" : " not null"));
}
protected virtual string BuildDbTypeWithoutNullability(Linq.Mapping.ColumnAttribute columnAttribute)
{
if (columnAttribute == null)
{
throw new ArgumentNullException("columnAttribute");
}
var dbType = GetEffectiveColumnType();
if (databaseGeneratedOption == DatabaseGeneratedOption.Identity)
{
dbType += " identity";
}
return(dbType);
}