public EntityModel(EntityMap map)
{
_map = map;
_queryPlan = BuildQueryPlan();
}
private QueryPlan BuildQueryPlan()
{
var plan = new QueryPlan();
int count = 0;
var tableAlias = "t" + count.ToString();
if (string.IsNullOrEmpty(_map.ViewName))
{
plan.TableName = _map.TableName;
}
else
{
plan.TableName = _map.ViewName;
}
plan.TableAlias = tableAlias;
var idName = tableAlias + "." + _map.Id.ColumnName;
var idAlias = tableAlias + "_" + _map.Id.ColumnName;
plan.AddId(_map.Id.MemberName, idName, idAlias, _map.Id.Accessors);
foreach (var propertyItem in _map.Properties)
{
var columnName = tableAlias + "." + propertyItem.ColumnName;
var columnAlias = tableAlias + "_" + propertyItem.ColumnName;
plan.AddColumn(propertyItem.MemberName, columnName, columnAlias, propertyItem.Accessors);
}
foreach (var lookupItem in _map.Joins)
{
count++;
var lookupAlias = "t" + count.ToString();
var leftColumnName = tableAlias + "." + lookupItem.ParentColumn;
var rightColumnName = lookupAlias + "." + lookupItem.ChildColumn;
plan.AddJoin(lookupItem.TableName, lookupAlias, leftColumnName, rightColumnName, JoinType.LeftOuter);
foreach (var propertyItem in lookupItem.Properties)
{
var columnName = lookupAlias + "." + propertyItem.ColumnName;
var columnAlias = lookupAlias + "_" + propertyItem.ColumnName;
plan.AddColumn(propertyItem.MemberName, columnName, columnAlias, propertyItem.Accessors);
}
}
return plan;
}
