public void MaterializeIfNeeded()
{
if (IsExternal) return;
if (!_dbsh.Materialize) return;
_materializedName = new NameWithSchema("#" + SqlAlias.Replace(".", "_"));
_materializeSelect = new DmlfSelect();
_materializeSelect.SingleFrom.Source = QuerySource;
_materializeSelect.SelectIntoTable = _materializedName;
_materializeSelect.SelectAll = true;
QuerySource = new DmlfSource
{
Alias = SqlAlias,
TableOrView = _materializedName,
};
}
private DmlfSelect BuildSelect()
{
var select = new DmlfSelect();
var from = select.SingleFrom;
from.Source = new DmlfSource
{
TableOrView = EntityFullName(_rootEntity),
Alias = EntityAlias(_rootEntity),
};
var added = new List<SourceEntitySqlModel>();
added.Add(_rootEntity);
foreach (var entity in _filteredEntities)
{
if (added.Contains(entity)) continue;
var relation = new DmlfRelation
{
JoinType = DmlfJoinType.Left,
Reference = new DmlfSource
{
TableOrView = EntityFullName(entity),
Alias = EntityAlias(entity),
},
};
foreach (var column in entity.Columns)
{
foreach (var ent2 in added)
{
if (ent2.Columns.Any(x => x.Alias == column.Alias))
{
relation.Conditions.Add(new DmlfEqualCondition
{
LeftExpr = new DmlfColumnRefExpression
{
Column = new DmlfColumnRef
{
ColumnName = entity.GetColumnName(column.Alias),
Source = new DmlfSource { Alias = EntityAlias(entity) },
}
},
RightExpr = new DmlfColumnRefExpression
{
Column = new DmlfColumnRef
{
ColumnName = ent2.GetColumnName(column.Alias),
Source = new DmlfSource { Alias = EntityAlias(ent2) },
}
},
});
}
}
}
added.Add(entity);
from.Relations.Add(relation);
}
foreach(var col in _rootEntity.Dbsh.Columns)
{
select.Columns.Add(DmlfResultField.BuildFromColumn(col.Name, new DmlfSource { Alias = EntityAlias(_rootEntity) }));
}
foreach(var entity in _filteredEntities)
{
foreach(var col in entity.Dbsh.Columns)
{
if (col.Filter == null) continue;
var orCond = new DmlfOrCondition();
orCond.Conditions.Add(SourceColumnSqlModel.CompileSingleFilter(col, EntityAlias(entity)));
if (entity.SingleKeyColumnOriginalName != null)
{
orCond.Conditions.Add(new DmlfIsNullCondition
{
Expr = new DmlfColumnRefExpression
{
Column = new DmlfColumnRef
{
ColumnName = entity.SingleKeyColumnOriginalName,
Source = new DmlfSource { Alias = EntityAlias(entity) },
}
}
});
}
select.AddAndCondition(orCond);
}
}
return select;
}
private DmlfUpdate CompileMarkDeleted()
{
var res = new DmlfUpdate();
res.UpdateTarget = new DmlfSource { Alias = "target" };
res.SingleFrom.Source = new DmlfSource
{
Alias = "target",
TableOrView = TargetTableSqlName,
LinkedInfo = TargetLinkedInfo,
};
var existSelect = new DmlfSelect();
res.AddAndCondition(new DmlfNotExistCondition
{
Select = existSelect,
});
existSelect.SelectAll = true;
existSelect.From.Add(SourceJoinModel.SourceToRefsJoin);
CreateKeyCondition(existSelect, "target");
CreateRestrictionCondition(res, "target");
CreateLifetimeConditions(res, "target");
CreateFilterConditions(existSelect);
_dbsh.LifetimeHandler.CreateSetDeletedUpdateFields(res, "target", this);
return res;
}
private DmlfDelete CompileDelete()
{
var res = new DmlfDelete();
res.DeleteTarget = new DmlfSource { Alias = "target" };
res.SingleFrom.Source = new DmlfSource
{
Alias = "target",
TableOrView = TargetTableSqlName,
LinkedInfo = TargetLinkedInfo,
};
var existSelect = new DmlfSelect();
res.AddAndCondition(new DmlfNotExistCondition
{
Select = existSelect,
});
existSelect.SelectAll = true;
existSelect.From.Add(SourceJoinModel.SourceToRefsJoin);
CreateKeyCondition(existSelect, "target");
CreateRestrictionCondition(res, "target", false);
CreateLifetimeConditions(res, "target");
CreateReferenceRestrictionsCodition(res, "target");
CreateFilterConditions(existSelect);
return res;
}
private DmlfInsertSelect CompileInsert()
{
var res = new DmlfInsertSelect();
res.TargetTable = TargetTableSqlName;
res.LinkedInfo = TargetLinkedInfo;
res.Select = new DmlfSelect();
res.Select.From.Add(SourceJoinModel.SourceToRefsJoin);
foreach (var col in TargetColumns)
{
res.TargetColumns.Add(col.Name);
var expr = col.CreateSourceExpression(SourceJoinModel, RequiresGrouping && !col.IsKey && !col.IsRestriction);
res.Select.Columns.Add(new DmlfResultField
{
Expr = expr,
});
}
if (RequiresGrouping)
{
res.Select.GroupBy = new DmlfGroupByCollection();
foreach (var col in TargetColumns.Where(x => x.IsKey || (x.IsRestriction && x.IsReference)))
{
var expr = col.CreateSourceExpression(SourceJoinModel, false);
res.Select.GroupBy.Add(new DmlfGroupByItem
{
Expr = expr,
});
}
}
CreateNotNullConditions(res.Select);
var existSelect = new DmlfSelect();
existSelect.SingleFrom.Source = new DmlfSource
{
TableOrView = TargetTableSqlName,
Alias = "tested",
LinkedInfo = TargetLinkedInfo,
};
existSelect.SelectAll = true;
CreateKeyCondition(existSelect, "tested");
CreateLifetimeConditions(existSelect, "tested");
CreateFilterConditions(res.Select);
res.Select.AddAndCondition(new DmlfNotExistCondition { Select = existSelect });
return res;
}
