/// <summary>
/// 查询显示分页后的列表数据.根据字典生成条件,用于时间条件为时间段时.
/// </summary>
/// <param name="dic">保存条件的字典,key为字段名称,关键字:数据库字段名__q(时间起),数据库字段名__z(时间止),数据库字段名__or(条件为or),数据库字段名__like(查询为like)</param>
/// <param name="order">排序字段:如果不需要排序可不传入数据,也可以传入null或者"";如果需要排序则写入order by之后的内容</param>
/// <param name="pageCurrent">当前页</param>
/// <param name="pageSize">每页显示的数量</param>
/// <param name="tableName">表名</param>
/// <param name="columnName">列名,默认为*,查询所有</param>
/// <returns></returns>
public DataTable SelectPage(Dictionary <string, object> dic, String order, int pageCurrent, int pageSize = 10, string tableName = "", string columnName = "*")
{
string sql = string.Empty;
try
{
string strTable = InternalBase <T> .GetTableName(tableName);
string strCondition = InternalBase <T> .GetConditionByDIC(dic);
string strOrder = InternalBase <T> .AddOrder(order);//获取排序字段.
int number;
InternalBase <T> .GetPageNumber(pageCurrent, pageSize, out number); //获取分页信息
string tt, ttt;
InternalBase <T> .GetColumnName(columnName, out tt, out ttt);
sql = "SELECT " + columnName + " FROM (SELECT " + ttt + ", ROWNUM AS rowno FROM ( SELECT " + tt + " FROM " + strTable + " t " + strCondition + strOrder + ") tt WHERE ROWNUM <= " + (number + pageSize) + ") table_alias WHERE table_alias.rowno >= " + (number + 1);
return(dbl.ExecuteQuery(sql));
}
catch (Exception ex)
{
LogHelper.WriteLog(ex, sql);
return(null);
}
}
/// <summary>
/// 获取更新语句,根据字典.条件为字典格式,有些条件为时间段,无法用实体类表示.关键字:数据库字段名__q(时间起),数据库字段名__z(时间止),数据库字段名__or(条件为or),数据库字段名__like(查询为like)
/// </summary>
/// <param name="columnDic">列数据字典,如果列为日期格式,需要增加后缀__date</param>
/// <param name="conditionDic">条件字典</param>
/// <param name="tableName">表名</param>
/// <returns></returns>
public string GetUpdateSql(Dictionary <string, object> columnDic, Dictionary <string, object> conditionDic, string tableName = "")
{
try
{
string strTable = InternalBase <T> .GetTableName(tableName); //获取表名
string strSetValue = ""; //更新的值
string strCondition = InternalBase <T> .GetConditionByDIC(conditionDic); //条件
//获取更新的值
foreach (var item in columnDic)
{
string key = item.Key;
object value = item.Value;
if (item.Key.ToLower().Contains("__date"))
{
strSetValue += string.Format(",{0}={1}", key, "to_date('" + value + "','yyyy/mm/dd hh24:mi:ss')");
}
else
{
strSetValue += string.Format(",{0}='{1}'", key, value);
}
}
return(string.Format("UPDATE {0} SET {1} {2}", strTable, strSetValue.Substring(1), strCondition));
}
catch (Exception ex)
{
LogHelper.WriteLog(ex);
return("-1");
}
}
/// <summary>
/// 根据字典,返回分页需要是sql语句
/// </summary>
/// <param name="dataSql">返回查询datatable的sql</param>
/// <param name="countSql">返回查询数量的sql</param>
/// <param name="dic">保存条件的字典,key为字段名称,关键字:数据库字段名__q(时间起),数据库字段名__z(时间止),数据库字段名__or(条件为or),数据库字段名__like(查询为like)</param>
/// <param name="order">排序字段:如果不需要排序可不传入数据,也可以传入null或者"";如果需要排序则写入order by之后的内容</param>
/// <param name="pageCurrent">当前页</param>
/// <param name="pageSize">每页显示的数量</param>
/// <param name="tableName">表名</param>
/// <param name="columnName">列名,默认为*,查询所有</param>
/// <returns></returns>
public void GetSelectPageSql(out string dataSql, out string countSql, Dictionary <string, object> dic, String order, int pageCurrent, int pageSize = 10, string tableName = "", string columnName = "*")
{
dataSql = string.Empty;
countSql = string.Empty;
try
{
string strTable = InternalBase <T> .GetTableName(tableName);
string strCondition = InternalBase <T> .GetConditionByDIC(dic);
string strOrder = InternalBase <T> .AddOrder(order);//获取排序字段.
int number;
InternalBase <T> .GetPageNumber(pageCurrent, pageSize, out number); //获取分页信息
string tt, ttt;
InternalBase <T> .GetColumnName(columnName, out tt, out ttt);
dataSql = "SELECT " + columnName + " FROM (SELECT " + ttt + ", ROWNUM AS rowno FROM ( SELECT " + tt + " FROM " + strTable + " t " + strCondition + strOrder + ") tt WHERE ROWNUM <= " + (number + pageSize) + ") table_alias WHERE table_alias.rowno >= " + (number + 1);
countSql = "select count (*) from " + strTable + strCondition;
}
catch (Exception ex)
{
LogHelper.WriteLog(ex, dataSql + "\r\n" + countSql);
}
}
/// <summary>
/// 获取delete语句.根据条件字典,用于有时间段的条件
/// </summary>
/// <param name="dic">条件字典</param>
/// <param name="tableName">表名 </param>
/// <returns></returns>
public string GetDeleteSql(Dictionary <string, object> dic, string tableName = "")
{
try
{
string strTable = InternalBase <T> .GetTableName(tableName); //获取表名
string strCondition = InternalBase <T> .GetConditionByDIC(dic); //获取条件
return(string.Format("delete from {0} {1}", strTable, strCondition));
}
catch (Exception ex)
{
LogHelper.WriteLog(ex);
return("-1");
}
}
/// <summary>
/// 查询返回所有数据,根据字典生成条件,用于时间条件为时间段时.
/// </summary>
/// <param name="dic">保存条件的字典,key为字段名称,关键字:数据库字段名__q(时间起),数据库字段名__z(时间止),数据库字段名__or(条件为or),数据库字段名__like(查询为like)</param>
/// <param name="order">排序字段:如果不需要排序可不传入数据,也可以传入null或者"";如果需要排序则写入order by之后的内容</param>
/// <param name="tableName">表名</param>
/// <param name="columnName">列名,默认为*,查询所有</param>
/// <returns></returns>
public DataTable Select(Dictionary <string, object> dic, string order = "", string tableName = "", string columnName = "*")
{
string sql = string.Empty;
try
{
string strTable = InternalBase <T> .GetTableName(tableName);
string strCondition = InternalBase <T> .GetConditionByDIC(dic);
string strOrder = InternalBase <T> .AddOrder(order);//获取排序字段
sql = string.Format("select {0} from {1} {2} {3}", columnName, strTable, strCondition, strOrder);
return(dbl.ExecuteQuery(sql));
}
catch (Exception ex)
{
LogHelper.WriteLog(ex, sql);
return(null);
}
}
/// <summary>
/// 查询显示分页数据.返回json字符串(包含列表数据和总数据量数据,配合easyui使用).根据字典生成条件,用于时间条件为时间段时.
/// </summary>
/// <param name="dic">保存条件的字典,key为字段名称,关键字:数据库字段名__q(时间起),数据库字段名__z(时间止),数据库字段名__or(条件为or),数据库字段名__like(查询为like)</param>
/// <param name="order">排序字段:如果不需要排序可不传入数据,也可以传入null或者"";如果需要排序则写入order by之后的内容</param>
/// <param name="pageCurrent">当前页</param>
/// <param name="pageSize">每页显示的数量</param>
/// <param name="tableName">表名</param>
/// <param name="columnName">列名,默认为*,查询所有</param>
/// <returns></returns>
public string SelectPageToJSON(Dictionary <string, object> dic, String order, int pageCurrent, int pageSize = 10, string tableName = "", string columnName = "*")
{
string sql = string.Empty;
string countSql = string.Empty;
try
{
string strTable = InternalBase <T> .GetTableName(tableName);
string strCondition = InternalBase <T> .GetConditionByDIC(dic);
DataTable dt = SelectPage(dic, order, pageCurrent, pageSize, tableName, columnName);// dbl.ExecuteQuery(sql);
countSql = "select count (*) from " + strTable + strCondition;
var pageCount = dbl.GetSingle(countSql);
return(JSONHelper.ObjectToJson(new { total = pageCount, rows = dt }));
}
catch (Exception ex)
{
LogHelper.WriteLog(ex, sql + "\r\n" + countSql);
return("");
}
}
