private static IMongoQuery BuildQueryOneLevel(ParamCondition condition)
{
if (condition == null)
return null;
if (condition.Conditions != null && condition.Conditions.Length > 0)
return BuildQuery(condition);
switch (condition.Operator)
{
case Operator.Equal:
return Query.EQ(condition.Parameter.ParameterID,
GetParameterValue(condition.Parameter, condition.Value));
case Operator.GreaterOrEqual:
return Query.GTE(condition.Parameter.ParameterID,
GetParameterValue(condition.Parameter, condition.Value));
case Operator.NotEqual:
return Query.NE(condition.Parameter.ParameterID,
GetParameterValue(condition.Parameter, condition.Value));
case Operator.GreaterThan:
return Query.GT(condition.Parameter.ParameterID,
GetParameterValue(condition.Parameter, condition.Value));
case Operator.SmallerOrEqual:
return Query.LTE(condition.Parameter.ParameterID,
GetParameterValue(condition.Parameter, condition.Value));
case Operator.SmallerThan:
return Query.LT(condition.Parameter.ParameterID,
GetParameterValue(condition.Parameter, condition.Value));
case Operator.TimeRange: //
break;
}
return null;
}
public static IMongoQuery BuildQuery(ParamCondition condition)
{
if (condition == null)
return null;
if (condition.Conditions != null && condition.Conditions.Length > 0)
{//build condition tree recursive
if (condition.Relation == ConditionRelation.OR)
{
var subConds = from one in condition.Conditions
select BuildQueryOneLevel(one);
IMongoQuery query = Query.Or(subConds);
return query;
}
else
{
var subConds = from one in condition.Conditions
select BuildQueryOneLevel(one);
IMongoQuery query = Query.And(subConds);
return query;
}
}
else
{//只默认AND运算符
IMongoQuery subQuery = BuildQueryOneLevel(condition);
return subQuery;
}
}
