protected static bool GetCondition(DmlfCommandBase cmd, ChangeSetItem item, ChangeSetCondition cond, DatabaseInfo db)
{
var source = new DmlfSource
{
Alias = "basetbl",
LinkedInfo = item.LinkedInfo,
TableOrView = item.TargetTable,
};
var colref = cmd.SingleFrom.GetColumnRef(source, item.TargetTable, StructuredIdentifier.Parse(cond.Column), db, DmlfJoinType.Inner);
if (colref == null) return false;
//var table = db.FindTable(item.TargetTable);
//if (table == null) return false;
//var column = table.FindColumn(cond.Column);
//if (column == null) return false;
var colexpr = new DmlfColumnRefExpression
{
Column = colref
};
var column = colref.FindSourceColumn(db);
cmd.AddAndCondition(FilterParser.FilterParser.ParseFilterExpression(column != null ? column.CommonType : new DbTypeString(), colexpr, cond.Expression));
return true;
}
public void CompileFilter()
{
if (!Filters.Any()) return;
var type = DetectFilterType(FilterType, DbshColumns);
var entity = Entities.First();
var expr = new DmlfColumnRefExpression
{
Column = new DmlfColumnRef
{
ColumnName = entity.GetColumnName(Alias),
Source = entity.QuerySource,
}
};
var andCondition = new DmlfAndCondition();
foreach (var filter in Filters)
{
var cond = FilterParser.ParseFilterExpression(type, expr, filter);
andCondition.Conditions.Add(cond);
}
if (andCondition.Conditions.Count == 1)
{
FilterCondition = andCondition.Conditions[0];
}
else
{
FilterCondition = andCondition;
}
}
public override DmlfExpression CreateSourceExpression(SourceJoinSqlModel sourceJoinModel, bool aggregate)
{
var expr = new DmlfColumnRefExpression
{
Column = new DmlfColumnRef
{
ColumnName = _col.RefName,
Source = _targetSqlModel.GetRefSource(sourceJoinModel.SourceToRefsJoin, sourceJoinModel),
}
};
return GetExprOrAggregate(expr, aggregate);
}
public static DmlfConditionBase CompileSingleFilter(SourceColumn column, string tableAlias)
{
var expr = new DmlfColumnRefExpression
{
Column = new DmlfColumnRef
{
ColumnName = column.Name,
Source = new DmlfSource { Alias = tableAlias },
}
};
var type = DetectFilterType(column.FilterType, new[] { column });
var cond = FilterParser.ParseFilterExpression(type, expr, column.Filter);
return cond;
}
public void AddReferenceJoins(DmlfCommandBase command)
{
foreach (var qitem in _queue)
{
var relation = new DmlfRelation
{
JoinType = DmlfJoinType.Inner,
Reference = new DmlfSource
{
Alias = qitem.RefAlias,
TableOrView = qitem.RefEntity.TargetTable,
},
};
foreach (var col in qitem.BaseEntity.TargetColumns)
{
if (col.UnderlyingReference != qitem.Fk) continue;
var refColumn = new DmlfColumnRefExpression
{
Column = new DmlfColumnRef
{
Source = new DmlfSource { Alias = qitem.RefAlias },
ColumnName = col.RefColumnName,
}
};
relation.Conditions.Add(new DmlfEqualCondition
{
LeftExpr = col.CreateTargetExpression(qitem.BaseAlias),
RightExpr = refColumn,
CollateSpec = col.UseCollate(qitem.BaseEntity.SourceJoinModel) ? "DATABASE_DEFAULT" : null,
});
}
command.SingleFrom.Relations.Add(relation);
qitem.RefEntity.CreateLifetimeConditions(command, qitem.RefAlias);
qitem.RefEntity.CreateRestrictionCondition(command, qitem.RefAlias, false);
}
}
private void CreateFilterConditions(DmlfCommandBase cmd)
{
foreach(var col in SourceJoinModel.Columns.Values)
{
var colFilterCondition = col.FilterCondition;
// process additional condition
var additional = _dbsh.AdditionalFilters.FirstOrDefault(x => x.Column == col.Alias);
if (additional != null)
{
var type = SourceColumnSqlModel.DetectFilterType(additional.FilterType, col.DbshColumns);
var entity = col.Entities.First();
var expr = new DmlfColumnRefExpression
{
Column = new DmlfColumnRef
{
ColumnName = entity.GetColumnName(col.Alias),
Source = entity.QuerySource,
}
};
var additionalCondition = FilterParser.ParseFilterExpression(type, expr, additional.Filter);
if (colFilterCondition != null)
{
var andCondition = new DmlfAndCondition();
andCondition.Conditions.Add(additionalCondition);
andCondition.Conditions.Add(colFilterCondition);
colFilterCondition = andCondition;
}
else
{
colFilterCondition = additionalCondition;
}
}
if (colFilterCondition != null)
{
var orCond = new DmlfOrCondition();
if (col.Entities.Count == 1)
{
var entity = col.Entities.Single();
if (entity.SingleKeyColumnNameOrAlias != null)
{
var expr = new DmlfColumnRefExpression
{
Column = new DmlfColumnRef
{
ColumnName = entity.GetColumnName(entity.SingleKeyColumnNameOrAlias),
Source = entity.QuerySource,
}
};
orCond.Conditions.Add(new DmlfIsNullCondition
{
Expr = expr,
});
}
}
if (orCond.Conditions.Any())
{
orCond.Conditions.Add(colFilterCondition);
cmd.AddAndCondition(orCond);
}
else
{
cmd.AddAndCondition(colFilterCondition);
}
}
}
}
