private string GetQueryWhere(ISearchExpression se, NHibernate.ISessionFactory sessionFactory, Dictionary <string, object> paramNames)
{
SimpleExpression cse = se as SimpleExpression;
if (cse == null)
{
LogicalExpression le = se as LogicalExpression;
string left = GetQueryWhere(le.LeftHandSide, sessionFactory, paramNames);
string right = GetQueryWhere(le.RightHandSide, sessionFactory, paramNames);
switch (le.LogicOperator)
{
case LogicalOperator.And:
return("(" + left + " and " + right + ")");
case LogicalOperator.Or:
return("(" + left + " or " + right + ")");
case LogicalOperator.Not:
return("(not " + left + ")");
default:
System.Diagnostics.Debug.Assert(false, "Not supported LogicOperator");
return(null);
}
}
else
{
// Change Type
if (!string.IsNullOrEmpty(cse.FullPropertyName))
{
// Convert Data to dest type
bool hasC;
Type destType = NHibernateHelper.GetPropertyType(sessionFactory, typeof(T), cse.FullPropertyName, out hasC);
//hasCollection |= hasC;
IList array = cse.Values as IList;
if (array != null)
{
for (int i = 0; i < array.Count; ++i)
{
if (destType != array[i].GetType())
{
array[i] = ConvertHelper.ChangeType(array[i], destType);
}
}
//paramCnt += array.Count;
}
else
{
if (cse.Values != null)
{
if (destType != cse.Values.GetType())
{
cse.Values = ConvertHelper.ChangeType(cse.Values, destType);
}
}
//paramCnt++;
}
}
string propertyName = cse.FullPropertyName.Replace(":", ".");
string paraName = null;
switch (cse.Operator)
{
case SimpleOperator.Eq:
paraName = CreateParamName(cse, paramNames);
paramNames[paraName] = cse.Values;
return(propertyName + " = " + ":" + paraName);
case SimpleOperator.NotEq:
paraName = CreateParamName(cse, paramNames);
paramNames[paraName] = cse.Values;
return(propertyName + " != " + ":" + paraName);
case SimpleOperator.EqProperty:
paraName = CreateParamName(cse, paramNames);
paramNames[paraName] = cse.Values;
return(propertyName + " = " + ":" + paraName);
case SimpleOperator.Like:
paraName = CreateParamName(cse, paramNames);
paramNames[paraName] = "%" + cse.Values + "%";
return(propertyName + " like " + ":" + paraName);
case SimpleOperator.InG:
paraName = CreateParamName(cse, paramNames);
paramNames[paraName] = cse.Values;
return(propertyName + " in " + ":" + paraName);
case SimpleOperator.IsNotNull:
return(propertyName + " is not null ");
case SimpleOperator.IsNull:
return(propertyName + " is null ");
case SimpleOperator.Gt:
paraName = CreateParamName(cse, paramNames);
paramNames[paraName] = cse.Values;
return(propertyName + " > " + ":" + paraName);
case SimpleOperator.Lt:
paraName = CreateParamName(cse, paramNames);
paramNames[paraName] = cse.Values;
return(propertyName + " < " + ":" + paraName);
case SimpleOperator.Ge:
paraName = CreateParamName(cse, paramNames);
paramNames[paraName] = cse.Values;
return(propertyName + " >= " + ":" + paraName);
case SimpleOperator.Le:
paraName = CreateParamName(cse, paramNames);
paramNames[paraName] = cse.Values;
return(propertyName + " <= " + ":" + paraName);
case SimpleOperator.GInG:
{
IList data = cse.Values as IList;
// 当用于客户用途查找类型时，只能Like
StringBuilder sb = new StringBuilder();
sb.Append("(");
paraName = CreateParamName(cse, paramNames);
paramNames[paraName] = "%" + data[0] + "%";
sb.Append(propertyName + " like " + ":" + paraName);
for (int i = 1; i < data.Count; ++i)
{
sb.Append(" or ");
paraName = CreateParamName(cse, paramNames);
paramNames[paraName] = "%" + data[i] + "%";
sb.Append(propertyName + " like " + ":" + paraName);
}
sb.Append(")");
return(sb.ToString());
}
//case SimpleOperator.Any:
// return NHibernate.Criterion.Expression.EqProperty(propertyName, propertyName);
//case SimpleOperator.Sql:
// return NHibernate.Criterion.Expression.Sql(propertyName);
default:
System.Diagnostics.Debug.Assert(false, "Not supported SimpleOperator");
return(null);
}
}
}
// 如果是Component，则用入款金额.数额，不需要用:，不需要创建子Criteria。
private static NHibernate.Criterion.ICriterion GetCriterion(ISessionFactory sessionFactory, ref ICriteria originalCriteria,
Dictionary <string, ICriteria> aliases,
ISearchExpression se, ref bool hasCollection, ref int paramCnt)
{
if (se == null)
{
return(null);
}
if (se is Feng.Search.QueryExpression)
{
return(null);
}
SimpleExpression cse = se as SimpleExpression;
if (cse == null)
{
LogicalExpression le = se as LogicalExpression;
NHibernate.Criterion.ICriterion left = GetCriterion(sessionFactory, ref originalCriteria, aliases, le.LeftHandSide, ref hasCollection, ref paramCnt);
NHibernate.Criterion.ICriterion right = GetCriterion(sessionFactory, ref originalCriteria, aliases, le.RightHandSide, ref hasCollection, ref paramCnt);
switch (le.LogicOperator)
{
case LogicalOperator.And:
return(NHibernate.Criterion.Expression.And(left, right));
case LogicalOperator.Or:
return(NHibernate.Criterion.Expression.Or(left, right));
case LogicalOperator.Not:
return(NHibernate.Criterion.Expression.Not(left));
default:
System.Diagnostics.Debug.Assert(false, "Not supported LogicOperator");
return(null);
}
}
else
{
// No PropertyName Process
if (cse.Operator == SimpleOperator.Sql)
{
return(NHibernate.Criterion.Expression.Sql(cse.FullPropertyName));
}
string propertyName = TryCreateCriteria(cse.FullPropertyName, ref originalCriteria, aliases);
if (!string.IsNullOrEmpty(cse.FullPropertyName))
{
// Convert Data to dest type
bool hasC;
Type destType;
if (cse.Operator != SimpleOperator.EqProperty)
{
destType = NHibernateHelper.GetPropertyType(sessionFactory, typeof(T), cse.FullPropertyName, out hasC);
hasCollection |= hasC;
}
else
{
destType = typeof(string);
}
IList array = cse.Values as IList;
if (array != null)
{
for (int i = 0; i < array.Count; ++i)
{
if (destType != array[i].GetType())
{
array[i] = ConvertHelper.ChangeType(array[i], destType);
}
}
paramCnt += array.Count;
}
else
{
if (cse.Values != null)
{
if (destType != cse.Values.GetType())
{
cse.Values = ConvertHelper.ChangeType(cse.Values, destType);
}
}
paramCnt++;
}
}
switch (cse.Operator)
{
case SimpleOperator.Eq:
return(NHibernate.Criterion.Expression.Eq(propertyName, cse.Values));
case SimpleOperator.NotEq:
return(NHibernate.Criterion.Expression.Not(NHibernate.Criterion.Expression.Eq(propertyName, cse.Values)));
case SimpleOperator.EqProperty:
{
if (cse.Values == null)
{
throw new ArgumentException("EqProperty's Value should not be null!", "cse");
}
string toPropertyName = TryCreateCriteria(cse.Values.ToString(), ref originalCriteria, aliases);
return(NHibernate.Criterion.Expression.EqProperty(propertyName, toPropertyName));
}
case SimpleOperator.Like:
{
int?propertyLength = NHibernateHelper.GetPropertyLength(sessionFactory, typeof(T), cse.FullPropertyName);
return(GetLikeCriterion(propertyName, cse.Values, propertyLength));
}
case SimpleOperator.InG:
return(NHibernate.Criterion.Expression.In(propertyName, cse.Values as IList));
case SimpleOperator.IsNotNull:
return(NHibernate.Criterion.Expression.IsNotNull(propertyName));
case SimpleOperator.IsNull:
return(NHibernate.Criterion.Expression.IsNull(propertyName));
case SimpleOperator.Gt:
return(NHibernate.Criterion.Expression.Gt(propertyName, cse.Values));
case SimpleOperator.Lt:
return(NHibernate.Criterion.Expression.Lt(propertyName, cse.Values));
case SimpleOperator.Ge:
return(NHibernate.Criterion.Expression.Ge(propertyName, cse.Values));
case SimpleOperator.Le:
return(NHibernate.Criterion.Expression.Le(propertyName, cse.Values));
case SimpleOperator.GInG:
{
int?propertyLength = NHibernateHelper.GetPropertyLength(sessionFactory, typeof(T), cse.FullPropertyName);
IList data = cse.Values as IList;
// 通过查询控件控制
// 当用于客户用途查找类型时，只能Like
//if (data.Count <= 1)
{
NHibernate.Criterion.ICriterion criterion = GetLikeCriterion(propertyName, data[0], propertyLength);
for (int i = 1; i < data.Count; ++i)
{
criterion = NHibernate.Criterion.Expression.Or(criterion, GetLikeCriterion(propertyName, data[i], propertyLength));
}
return(criterion);
}
//// 当多行时，不在模糊查找
//else
//{
// return NHibernate.Criterion.Expression.In(propertyName, data);
//}
}
case SimpleOperator.Any:
return(NHibernate.Criterion.Expression.EqProperty(propertyName, propertyName));
case SimpleOperator.Sql:
return(NHibernate.Criterion.Expression.Sql(cse.FullPropertyName));
default:
System.Diagnostics.Debug.Assert(false, "Not supported SimpleOperator");
return(null);
}
}
}