public override IObjectModel ToNewObjectModel(DbSqlQueryExpression sqlQuery, DbTable table, DbMainTableExpression dependentTable, bool ignoreFilters)
{
DbColumnAccessExpression cae = ObjectModelHelper.ParseColumnAccessExpression(sqlQuery, table, this.Expression);
PrimitiveObjectModel objectModel = new PrimitiveObjectModel(this.ObjectType, cae);
objectModel.NullChecking = ObjectModelHelper.TryGetOrAddNullChecking(sqlQuery, table, this.NullChecking);
return(objectModel);
}
IObjectModel VisistMapTypeSelector(Expression exp)
{
if (!MappingTypeSystem.IsMappingType(exp.Type))
{
throw new NotSupportedException(exp.ToString());
}
DbExpression dbExp = this.ResolveExpression(exp);
PrimitiveObjectModel ret = new PrimitiveObjectModel(exp.Type, dbExp);
return(ret);
}
/// <summary>
/// a => a.Id a => a.Name a => a.User
/// </summary>
/// <param name="exp"></param>
/// <returns></returns>
protected override IObjectModel VisitMemberAccess(MemberExpression exp)
{
//create MappingFieldExpression object if exp is map type
if (MappingTypeSystem.IsMappingType(exp.Type))
{
DbExpression dbExp = this.ResolveExpression(exp);
PrimitiveObjectModel ret = new PrimitiveObjectModel(exp.Type, dbExp);
return(ret);
}
//如 a.Order a.User 等形式
return(this.ResolveComplexMember(exp));
}
