/// <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>
/// 获取插入语句,根据字典.
/// </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="tableName">表名</param>
/// <returns></returns>
public string GetInsertSql(Dictionary <string, object> columnDic, string tableName = "")
{
try
{
string strTable = InternalBase <T> .GetTableName(tableName); //获取表名
string strColumn = ""; //列
string strValue = ""; //值
foreach (var item in columnDic)
{
string key = item.Key;
object value = item.Value;
strColumn += "," + key;//列名
if (item.Key.ToLower().Contains("__date"))
{
strValue += ",to_date('" + value + "','yyyy/mm/dd hh24:mi:ss')";
}
else
{
strValue += ",'" + value + "'";
}
}
return(string.Format("INSERT INTO {0} ({1}) VALUES ({2})", strTable, strColumn.Substring(1), strValue.Substring(1)));
}
catch (Exception ex)
{
LogHelper.WriteLog(ex);
return("-1");
}
}
/// <summary>
/// 根据标识列的值返回整条数据
/// </summary>
/// <param name="IdentityValue">标识列的值</param>
/// <returns></returns>
internal DataTable SelectByIdentity(string IdentityValue)
{
string strTable = "";
string strCondition = "";
try
{
//获取表名
strTable = InternalBase <T> .GetTableName();
//获取条件
PropertyInfo[] pi = typeof(T).GetProperties();
foreach (var item in pi)
{
var temp = InternalBase <T> .GetColumnAttribute(item);
if (temp.Identity)
{
strCondition = item.Name + "='" + IdentityValue + "'";
break;
}
}
string sql = string.Format("select * from {0} where {1}", strTable, strCondition);
return(dbl.ExecuteQuery(sql));
}
catch (Exception ex)
{
LogHelper.WriteLog(ex);
return(null);
}
}
/// <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>
/// 获取唯一值
/// </summary>
/// <param name="myCode">实体类的条件</param>
/// <param name="columnName">获取唯一值的列名,默认codevalue</param>
/// <returns></returns>
public object GetValue(CODES myCode, string columnName = "codevalue")
{
string strCondition = InternalBase <CODES> .GetParamForSelectAndDelete(myCode);
string sql = "select " + columnName + " from CODES " + strCondition;
DataTable dt = this.SelectBySQL(sql);
if (dt != null && dt.Rows.Count > 0)
{
return(dt.Rows[0][columnName]);
}
return("");
}
/// <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>
/// 获取最小值
/// </summary>
/// <param name="columnName">最大值的列名</param>
/// <param name="t">实体类,传入的值都将当做查询条件参数</param>
/// <returns></returns>
internal int GetMin(string columnName, T t = null)
{
try
{
string strTable = InternalBase <T> .GetTableName();
string strCondition = InternalBase <T> .GetParamForSelectAndDelete(t);
string sql = "select min(" + columnName + ") from " + strTable + strCondition;
return(SelectScalar(sql));
}
catch (Exception ex)
{
LogHelper.WriteLog(ex);
return(-1);
}
}
/// <summary>
/// 根据列以及列的值,返回对应的一条数据
/// </summary>
/// <param name="ColumnName">列名</param>
/// <param name="ColumnValue">列值</param>
/// <returns></returns>
internal DataTable SelectByColumn(string ColumnName, string ColumnValue)
{
string strTable = InternalBase <T> .GetTableName();
string strCondition = "";
try
{
strCondition = ColumnName + "='" + ColumnValue + "'";
string sql = string.Format("select * from {0} where {1}", strTable, strCondition); //$"select * from {strTable} where {strCondition}";
return(dbl.ExecuteQuery(sql));
}
catch (Exception ex)
{
LogHelper.WriteLog(ex);
return(null);
}
}
/// <summary>
/// 获取delete语句
/// </summary>
/// <param name="t">实体类型</param>
/// <returns></returns>
public string GetDeleteSql(T t)
{
try
{
string strTable = "";
string strCondition = "";
//获取表名
strTable = InternalBase <T> .GetTableName();
//获取条件
strCondition = InternalBase <T> .GetParamForSelectAndDelete(t);
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,根据实体对象生成条件.
/// </summary>
/// <param name="t">实体类,将查询条件赋给实体类的属性</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="columnName">列名,默认为*,查询所有</param>
/// <returns></returns>
public DataTable Select(T t, string order = "", string columnName = "*")
{
string sql = string.Empty;
try
{
string strTable = InternalBase <T> .GetTableName();
string strCondition = InternalBase <T> .GetParamForSelectAndDelete(t);
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>
/// 获取查询语句
/// </summary>
/// <param name="strTable">表名</param>
/// <param name="pageCurrent">当前页</param>
/// <param name="pageSize">每页显示的数量</param>
/// <param name="strOrder">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="strCondition">条件,需要填写where</param>
/// <param name="columnName">列名,默认为*,查询所有</param>
/// <returns></returns>
internal string GetSelectSql(string strTable, int pageCurrent, int pageSize, string strOrder, string strCondition, string columnName)
{
string sql = string.Empty;
try
{
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(sql);
}
catch (Exception ex)
{
LogHelper.WriteLog(ex + "sql:" + sql);
throw;
}
}
/// <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>
/// 获取insert语句
/// </summary>
/// <param name="t">实体类型</param>
/// <returns></returns>
public string GetInsertSql(T t)
{
string strTable = ""; //表名
string strColumn = ""; //列
string strValue = ""; //值
try
{
//获取表名
strTable = InternalBase <T> .GetTableName();
//获取列名和值
PropertyInfo[] pi = t.GetType().GetProperties();
foreach (var item in pi)
{
string key = item.Name;
object value = item.GetValue(t, null);
if (value == null)
{
continue;
}
strColumn += "," + key;//列名
//值
if (value.GetType() == typeof(DateTime))
{
strValue += ",to_date('" + value + "','yyyy/mm/dd hh24:mi:ss')";
}
else
{
strValue += ",'" + value + "'";
}
}
return(string.Format("INSERT INTO {0} ({1}) VALUES ({2})", strTable, strColumn.Substring(1), strValue.Substring(1)));
}
catch (Exception ex)
{
LogHelper.WriteLog(ex);
return("-1");
}
}
/// <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("");
}
}
/// <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),根据实体对象生成条件.
/// </summary>
/// <param name="strTable">表名</param>
/// <param name="pageCurrent">当前页</param>
/// <param name="pageSize">每页显示的数量</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="strCondition">条件,需要填写where</param>
/// <param name="columnName">列名,默认为*,查询所有</param>
/// <returns></returns>
public string SelectPageToJSONBySQL(string strTable, int pageCurrent, int pageSize = 10, string order = "", String strCondition = "", string columnName = "*")
{
string sql = "";
string countSql = "";
try
{
string strOrder = InternalBase <T> .AddOrder(order);//获取排序字段.
sql = this.GetSelectSql(strTable, pageCurrent, pageSize, strOrder, strCondition, columnName);
int number = (pageCurrent - 1) * pageSize;
DataTable dt = this.SelectBySQL(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("");
}
}
/// <summary>
/// 获取update语句
/// </summary>
/// <param name="t">实体类型</param>
/// <param name="conditionName">条件字段,默认为ID,如果有多个条件,可以用","隔开</param>
/// <returns></returns>
public string GetUpdateSql(T t, string conditionName = "ID")
{
try
{
string strTable = ""; //表名
string strSetValue = ""; //更新的值
string strCondition = ""; //条件
//获取表名
strTable = InternalBase <T> .GetTableName();
PropertyInfo[] pi = t.GetType().GetProperties();
bool isCondition;//此属性是否为条件
foreach (var item in pi)
{
//todo:想使用特性,来判断是否把属性赋空值,但是没好用.目前的问题就是,无法把非string类型的值修改为空
//string columnType = string.Empty;
//object[] propertyAttrs = item.GetCustomAttributes(false);
//for (int i = 0; i < propertyAttrs.Length; i++)
//{
// object propertyAttr = propertyAttrs[i];
// //获取Column自定义属性中配置的type值(表的列名)
// columnType = GetColumnType(propertyAttr);
//}
isCondition = false;
string key = item.Name;
object value = item.GetValue(t, null);
if (value == null)//&& string.IsNullOrEmpty(columnType)
{
continue;
}
string[] arrayCondition = conditionName.Split(',');
foreach (var condition in arrayCondition)
{
if (key.ToUpper().Equals(condition.ToUpper()))
{
strCondition += string.Format(" and {0}='{1}'", key, value);
isCondition = true;
break;
}
}
if (isCondition)
{
continue;
}
else
{
if (value.GetType() == typeof(DateTime))
{
strSetValue += string.Format(",{0}={1}", key, "to_date('" + value + "','yyyy/mm/dd hh24:mi:ss')");
}
else
{
strSetValue += string.Format(",{0}='{1}'", key, value);
}
}
}
if (strCondition.Length > 0)
{
strCondition = InternalBase <T> .IsKeepAndWhere(strCondition, false, true);
}
return(string.Format("UPDATE {0} SET {1} {2}", strTable, strSetValue.Substring(1), strCondition));
}
catch (Exception ex)
{
LogHelper.WriteLog(ex);
return("-1");
}
}
