/// <summary>
/// 获得查询
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
private static IMongoQuery GetQuery(DataFilter.QueryConditionInputItem item)
{
IMongoQuery query;
var queryvalue = item.Value.GetBsonValue();
switch (item.Compare)
{
case DataFilter.CompareEnum.Eq:
query = Query.EQ(item.ColName, queryvalue);
break;
case DataFilter.CompareEnum.Gt:
query = Query.GT(item.ColName, queryvalue);
break;
case DataFilter.CompareEnum.Gte:
query = Query.GTE(item.ColName, queryvalue);
break;
case DataFilter.CompareEnum.Lt:
query = Query.LT(item.ColName, queryvalue);
break;
case DataFilter.CompareEnum.Lte:
query = Query.LTE(item.ColName, queryvalue);
break;
case DataFilter.CompareEnum.Ne:
query = Query.NE(item.ColName, queryvalue);
break;
default:
query = Query.EQ(item.ColName, queryvalue);
break;
}
return(query);
}
/// <summary>
/// 通过Sql文的Where条件和列名称来获取Query条件
/// </summary>
/// <param name="sqlContent">Where条件</param>
/// <param name="columnNameLst">列名称</param>
/// <returns></returns>
private static List <DataFilter.QueryConditionInputItem> SetQueryCondition(string sqlContent,
List <string> columnNameLst)
{
var conditionlst = new List <DataFilter.QueryConditionInputItem>();
// (a=1 or b="A") AND c="3" => ( a = 1 or b = "A" ) and c = "3"
//1. 除了引号里面的文字，全部小写
string[] keyWord = { "(", ")", "=", "or", "and", ">", ">=", "<", "<=", "<>" };
foreach (var keyitem in keyWord)
{
sqlContent = sqlContent.Replace(keyitem, " " + keyitem + " ");
}
while (sqlContent.Contains(" "))
{
sqlContent = sqlContent.Replace(" ", " ");
}
sqlContent = sqlContent.Trim();
//从左到右 ( a = 1 or
// b = "A" ) and
// c = "3"
var token = sqlContent.Split(" ".ToCharArray());
var mQueryConditionInputItem = new DataFilter.QueryConditionInputItem
{
StartMark = string.Empty,
EndMark = string.Empty
};
for (var i = 0; i < token.Length; i++)
{
var strToken = token[i].Replace(" ", " ");
switch (strToken)
{
case "(":
mQueryConditionInputItem.StartMark = "(";
break;
case "=":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Eq;
break;
case ">":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Gt;
break;
case "<":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Lt;
break;
case ">=":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Gte;
break;
case "<=":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Lte;
break;
case "<>":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Ne;
break;
case "or":
mQueryConditionInputItem.EndMark = ConstMgr.EndMarkOr;
conditionlst.Add(mQueryConditionInputItem);
mQueryConditionInputItem = new DataFilter.QueryConditionInputItem
{
StartMark = string.Empty,
EndMark = string.Empty
};
break;
case "and":
mQueryConditionInputItem.EndMark = ConstMgr.EndMarkAnd;
conditionlst.Add(mQueryConditionInputItem);
mQueryConditionInputItem = new DataFilter.QueryConditionInputItem
{
StartMark = string.Empty,
EndMark = string.Empty
};
break;
case ")":
mQueryConditionInputItem.EndMark = ")";
if (i == token.Length - 1)
{
mQueryConditionInputItem.EndMark = ConstMgr.EndMarkT;
}
else
{
if (token[i + 1] == "or")
{
mQueryConditionInputItem.EndMark = ConstMgr.EndMarkOrT;
i++;
}
else
{
if (token[i + 1] == "and")
{
mQueryConditionInputItem.EndMark = ConstMgr.EndMarkAndT;
i++;
}
}
}
conditionlst.Add(mQueryConditionInputItem);
mQueryConditionInputItem = new DataFilter.QueryConditionInputItem
{
StartMark = string.Empty,
EndMark = string.Empty
};
break;
default:
if (mQueryConditionInputItem.ColName == null)
{
foreach (var colName in columnNameLst)
{
if (colName.ToLower() == strToken.ToLower())
{
//小写的复原
mQueryConditionInputItem.ColName = colName;
break;
}
}
}
else
{
//类型设置
if (strToken.StartsWith("\"") & strToken.EndsWith("\""))
{
mQueryConditionInputItem.Value =
new BsonValueEx(new BsonString(strToken.Replace("\"", "")));
}
else
{
mQueryConditionInputItem.Value =
new BsonValueEx(new BsonInt32(Convert.ToInt16(strToken)));
}
}
break;
}
}
if (token[token.Length - 1] != ")")
{
conditionlst.Add(mQueryConditionInputItem);
}
return(conditionlst);
}
/// <summary>
/// 通过Sql文的Where条件和列名称来获取Query条件
/// </summary>
/// <param name="sqlContent">Where条件</param>
/// <param name="columnNameLst">列名称</param>
/// <returns></returns>
private static List<DataFilter.QueryConditionInputItem> SetQueryCondition(string sqlContent,
List<string> columnNameLst)
{
var conditionlst = new List<DataFilter.QueryConditionInputItem>();
// (a=1 or b="A") AND c="3" => ( a = 1 or b = "A" ) and c = "3"
//1. 除了引号里面的文字，全部小写
string[] keyWord = {"(", ")", "=", "or", "and", ">", ">=", "<", "<=", "<>"};
foreach (var keyitem in keyWord)
{
sqlContent = sqlContent.Replace(keyitem, " " + keyitem + " ");
}
while (sqlContent.Contains(" "))
{
sqlContent = sqlContent.Replace(" ", " ");
}
sqlContent = sqlContent.Trim();
//从左到右 ( a = 1 or
// b = "A" ) and
// c = "3"
var token = sqlContent.Split(" ".ToCharArray());
var mQueryConditionInputItem = new DataFilter.QueryConditionInputItem
{
StartMark = string.Empty,
EndMark = string.Empty
};
for (var i = 0; i < token.Length; i++)
{
var strToken = token[i].Replace(" ", " ");
switch (strToken)
{
case "(":
mQueryConditionInputItem.StartMark = "(";
break;
case "=":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Eq;
break;
case ">":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Gt;
break;
case "<":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Lt;
break;
case ">=":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Gte;
break;
case "<=":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Lte;
break;
case "<>":
mQueryConditionInputItem.Compare = DataFilter.CompareEnum.Ne;
break;
case "or":
mQueryConditionInputItem.EndMark = ConstMgr.EndMarkOr;
conditionlst.Add(mQueryConditionInputItem);
mQueryConditionInputItem = new DataFilter.QueryConditionInputItem
{
StartMark = string.Empty,
EndMark = string.Empty
};
break;
case "and":
mQueryConditionInputItem.EndMark = ConstMgr.EndMarkAnd;
conditionlst.Add(mQueryConditionInputItem);
mQueryConditionInputItem = new DataFilter.QueryConditionInputItem
{
StartMark = string.Empty,
EndMark = string.Empty
};
break;
case ")":
mQueryConditionInputItem.EndMark = ")";
if (i == token.Length - 1)
{
mQueryConditionInputItem.EndMark = ConstMgr.EndMarkT;
}
else
{
if (token[i + 1] == "or")
{
mQueryConditionInputItem.EndMark = ConstMgr.EndMarkOrT;
i++;
}
else
{
if (token[i + 1] == "and")
{
mQueryConditionInputItem.EndMark = ConstMgr.EndMarkAndT;
i++;
}
}
}
conditionlst.Add(mQueryConditionInputItem);
mQueryConditionInputItem = new DataFilter.QueryConditionInputItem
{
StartMark = string.Empty,
EndMark = string.Empty
};
break;
default:
if (mQueryConditionInputItem.ColName == null)
{
foreach (var colName in columnNameLst)
{
if (colName.ToLower() == strToken.ToLower())
{
//小写的复原
mQueryConditionInputItem.ColName = colName;
break;
}
}
}
else
{
//类型设置
if (strToken.StartsWith("\"") & strToken.EndsWith("\""))
{
mQueryConditionInputItem.Value =
new BsonValueEx(new BsonString(strToken.Replace("\"", "")));
}
else
{
mQueryConditionInputItem.Value =
new BsonValueEx(new BsonInt32(Convert.ToInt16(strToken)));
}
}
break;
}
}
if (token[token.Length - 1] != ")")
{
conditionlst.Add(mQueryConditionInputItem);
}
return conditionlst;
}
