/// <summary>
/// 反回记录数
/// </summary>
/// <param name="sqlable"></param>
/// <returns></returns>
public static int Count(this Sqlable sqlable, object whereObj = null, string preSql = null, string nextSql = null)
{
StringBuilder sbSql = new StringBuilder(sqlable.Sql.ToString());
try
{
Check.ArgumentNullException(sqlable.Sql, "语法错误，Count必需要在.Form后面使用");
sbSql.Insert(0, string.Format("SELECT COUNT(1) "));
sbSql.Append(" WHERE 1=1").Append(string.Join(" ", sqlable.Where));
sbSql.Append(sqlable.OrderBy);
sbSql.Append(sqlable.GroupBy);
var sqlParams = GetAllParas(sqlable, whereObj);
if (preSql != null)
{
sbSql.Insert(0, preSql);
}
if (nextSql != null)
{
sbSql.Append(nextSql);
}
return(sqlable.DB.GetInt(sbSql.ToString(), sqlParams));
}
catch (Exception ex)
{
Check.Exception(true, "sql:{0} \r\n message:{1}", sbSql.ToString(), ex.Message);
throw;
}
finally
{
sqlable = null;
sbSql = null;
}
}
internal static void GetSqlableSql(Sqlable sqlable, string fileds, string orderByFiled, int pageIndex, int pageSize, StringBuilder sbSql)
{
sbSql.Insert(0, string.Format("SELECT {0}", fileds));
sbSql.Append(" WHERE 1=1 ").Append(string.Join(" ", sqlable.Where));
sbSql.Append(sqlable.GroupBy);
sbSql.AppendFormat(" ORDER BY {0} ", orderByFiled);
int skip = (pageIndex - 1) * pageSize;
int take = pageSize;
if (skip > 0 || take > 0)
{
if (skip > 0 && take > 0)
{
sbSql.AppendFormat("limit {0},{1}", skip, take);
}
else if (skip > 0)
{
sbSql.AppendFormat("limit {0}", skip);
}
else if (take > 0)
{
sbSql.AppendFormat("limit 0,{0}", take);
}
}
}
/// <summary>
/// 创建多表查询对象
/// </summary>
public Sqlable Sqlable()
{
var sqlable = new Sqlable()
{
DB = this
};
//全局过滤器
if (CurrentFilterKey.IsValuable())
{
if (_filterFuns.IsValuable() && _filterFuns.ContainsKey(CurrentFilterKey))
{
var filterInfo = _filterFuns[CurrentFilterKey];
var filterVlue = filterInfo();
string whereStr = string.Format(" AND {0} ", filterVlue.Key);
sqlable.Where.Add(whereStr);
if (filterVlue.Value != null)
{
sqlable.Params.AddRange(SqlSugarTool.GetParameters(filterVlue.Value));
}
return(sqlable);
}
}
return(sqlable);
}
/// <summary>
/// 设置查询列执行查询，并且将结果集转成DataTable
/// </summary>
/// <param name="sqlable"></param>
/// <param name="fileds">查询列</param>
/// <param name="whereObj">SQL参数,例如:new{id=1,name="张三"}</param>
/// <returns></returns>
public static DataTable SelectToDataTable(this Sqlable sqlable, string fileds, object whereObj = null)
{
StringBuilder sbSql = new StringBuilder(sqlable.Sql.ToString());
try
{
Check.ArgumentNullException(sqlable.Sql, "语法错误，SelectToSql必需要在.Form后面使用");
sbSql.Insert(0, string.Format("SELECT {0} ", fileds));
sbSql.Append(" WHERE 1=1").Append(string.Join(" ", sqlable.Where));
sbSql.Append(sqlable.OrderBy);
sbSql.Append(sqlable.GroupBy);
var sqlParams = GetAllParas(sqlable, whereObj);
var reval = sqlable.DB.GetDataTable(sbSql.ToString(), sqlParams);
return(reval);
}
catch (Exception ex)
{
Check.Exception(true, "sql:{0} \r\n message:{1}", sbSql.ToString(), ex.Message);
throw;
}
finally
{
sqlable = null;
sbSql = null;
}
}
/// <summary>
/// 设置查询列和分页参数执行查询，并且将结果集转成DataTable
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="sqlable"></param>
/// <param name="fileds">查询列</param>
/// <param name="orderByFiled">Order By字段，可以多个</param>
/// <param name="pageIndex">页码</param>
/// <param name="pageSize">每页显示数量</param>
/// <param name="whereObj">SQL参数,例如:new{id=1,name="张三"}</param>
/// <returns></returns>
public static DataTable SelectToPageTable(this Sqlable sqlable, string fileds, string orderByFiled, int pageIndex, int pageSize, object whereObj = null)
{
StringBuilder sbSql = new StringBuilder(sqlable.Sql.ToString());
try
{
if (pageIndex == 0)
{
pageIndex = 1;
}
Check.ArgumentNullException(sqlable.Sql, "语法错误，SelectToSql必需要在.Form后面使用");
SqlSugarTool.GetSqlableSql(sqlable, fileds, orderByFiled, pageIndex, pageSize, sbSql);
var sqlParams = GetAllParas(sqlable, whereObj);
var reval = sqlable.DB.GetDataTable(sbSql.ToString(), sqlParams);
return(reval);
}
catch (Exception ex)
{
Check.Exception(true, "sql:{0} \r\n message:{1}", sbSql.ToString(), ex.Message);
throw;
}
finally
{
sbSql = null;
sqlable = null;
}
}
/// <summary>
/// 生成查询结果对应的实体类字符串
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="sqlable"></param>
/// <param name="fileds">查询列</param>
/// <param name="whereObj">SQL参数,例如:new{id=1,name="张三"}</param>
/// <returns></returns>
public static string ToClass(this Sqlable sqlable, string fileds, object whereObj = null)
{
var cg = new ClassGenerating();
var dt = SelectToDataTable(sqlable, fileds, whereObj);
return(cg.DataTableToClass(dt, "TableName"));
}
/// <summary>
/// 设置查询列执行查询，并且将结果集转成List《T》
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="sqlable"></param>
/// <param name="fileds">查询列</param>
/// <param name="whereObj">SQL参数,例如:new{id=1,name="张三"}</param>
/// <returns></returns>
public static List <T> SelectToList <T>(this Sqlable sqlable, string fileds, object whereObj = null, string preSql = null, string nextSql = null) where T : class
{
StringBuilder sbSql = new StringBuilder(sqlable.Sql.ToString());
try
{
Check.ArgumentNullException(sqlable.Sql, "语法错误，SelectToSql必需要在.Form后面使用");
sbSql.Insert(0, string.Format("SELECT {0} ", fileds));
sbSql.Append(" WHERE 1=1").Append(string.Join(" ", sqlable.Where));
sbSql.Append(sqlable.OrderBy);
sbSql.Append(sqlable.GroupBy);
var sqlParams = GetAllParas(sqlable, whereObj);
if (preSql != null)
{
sbSql.Insert(0, preSql);
}
if (nextSql != null)
{
sbSql.Append(nextSql);
}
var reval = SqlSugarTool.DataReaderToList <T>(typeof(T), sqlable.DB.GetReader(sbSql.ToString(), sqlParams), fileds);
return(reval);
}
catch (Exception ex)
{
Check.Exception(true, "sql:{0} \r\n message:{1}", sbSql.ToString(), ex.Message);
throw;
}
finally
{
sqlable = null;
sbSql = null;
}
}
/// <summary>
/// Where
/// </summary>
/// <param name="sqlable"></param>
/// <param name="where">查询条件、开头无需写 AND或者WHERE</param>
/// <returns></returns>
public static Sqlable Where(this Sqlable sqlable, string where)
{
if (where.IsValuable())
{
sqlable.Where.Add(string.Format(" AND {0} ", where));
}
return(sqlable);
}
/// <summary>
/// 获取页面参数
/// </summary>
/// <param name="sqlable"></param>
/// <param name="whereObj"></param>
/// <returns></returns>
private static SQLiteParameter[] GetAllParas(Sqlable sqlable, object whereObj)
{
List <SQLiteParameter> allParams = new List <SQLiteParameter>();
var selectParas = SqlSugarTool.GetParameters(whereObj).ToList();
if (selectParas.IsValuable())
{
allParams.AddRange(selectParas);
}
if (sqlable.Params.IsValuable())
{
allParams.AddRange(sqlable.Params);
}
return(allParams.ToArray());
}
/// <summary>
/// OrderBy
/// </summary>
/// <param name="sqlable"></param>
/// <param name="orderBy">排序字段，可以多个</param>
/// <returns></returns>
public static Sqlable OrderBy(this Sqlable sqlable, string orderBy)
{
sqlable.OrderBy = "ORDER BY " + orderBy + " ";
return(sqlable);
}
/// <summary>
/// Join
/// </summary>
/// <param name="sqlable"></param>
/// <param name="leftFiled">join左边连接字段</param>
/// <param name="RightFiled">join右边连接字段</param>
/// <param name="type">join类型</param>
/// <returns></returns>
public static Sqlable Join <T>(this Sqlable sqlable, string shortName, string leftFiled, string RightFiled, JoinType type)
{
Check.ArgumentNullException(sqlable.Sql, "语法错误，正确用法：sqlable.Form(“table”).Join");
sqlable.Sql.AppendFormat(" {0} JOIN {1} {2} {3} ON {4} = {5} ", type.ToString(), typeof(T).Name, shortName, sqlable.DB.IsNoLock.GetLockString(), leftFiled, RightFiled);
return(sqlable);
}
/// <summary>
/// 设置查询列和分页参数执行查询，并且将结果集转成dynamic
/// </summary>
/// <param name="sqlable"></param>
/// <param name="fileds">查询列</param>
/// <param name="orderByFiled">Order By字段，可以多个</param>
/// <param name="pageIndex">页码</param>
/// <param name="pageSize">每页显示数量</param>
/// <param name="whereObj">SQL参数,例如:new{id=1,name="张三"}</param>
/// <returns></returns>
public static dynamic SelectToPageDynamic(this Sqlable sqlable, string fileds, string orderByFiled, int pageIndex, int pageSize, object whereObj = null)
{
return(JsonConverter.ConvertJson(SelectToPageJson(sqlable, fileds, orderByFiled, pageIndex, pageSize, whereObj)));
}
/// <summary>
/// Form
/// </summary>
/// <param name="sqlable"></param>
/// <param name="modelObj">表名</param>
/// <param name="shortName">表名简写</param>
/// <returns></returns>
public static Sqlable From <T>(this Sqlable sqlable, string shortName)
{
sqlable.Sql = new StringBuilder();
sqlable.Sql.AppendFormat(" FROM {0} {1} {2} ", typeof(T).Name, shortName, sqlable.DB.IsNoLock.GetLockString());
return(sqlable);
}
/// <summary>
/// 设置查询列和分页参数执行查询，并且将结果集转成json
/// </summary>
/// <param name="sqlable"></param>
/// <param name="fileds">查询列</param>
/// <param name="orderByFiled">Order By字段，可以多个</param>
/// <param name="pageIndex">页码</param>
/// <param name="pageSize">每页显示数量</param>
/// <param name="whereObj">SQL参数,例如:new{id=1,name="张三"}</param>
/// <returns></returns>
public static string SelectToPageJson(this Sqlable sqlable, string fileds, string orderByFiled, int pageIndex, int pageSize, object whereObj = null)
{
return(JsonConverter.DataTableToJson(SelectToPageTable(sqlable, fileds, orderByFiled, pageIndex, pageSize, whereObj), sqlable.DB.SerializerDateFormat));
}
/// <summary>
/// Apply
/// </summary>
/// <param name="sqlable"></param>
/// <param name="applySql">apply主体内容</param>
/// <param name="shotName">apply简写</param>
/// <param name="type">Apply类型</param>
/// <returns></returns>
public static Sqlable Apply(this Sqlable sqlable, string applySql, string shotName, ApplyType type)
{
Check.ArgumentNullException(sqlable.Sql, "语法错误，正确用法：sqlable.Form(“table”).Join");
sqlable.Sql.AppendFormat(" {0} APPLY ({1}) {2}} ", type.ToString(), applySql, shotName);
return(sqlable);
}
/// <summary>
/// 设置查询列执行查询，并且将结果集转成dynamic
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="sqlable"></param>
/// <param name="fileds">查询列</param>
/// <param name="whereObj">SQL参数,例如:new{id=1,name="张三"}</param>
/// <returns></returns>
public static dynamic SelectToDynamic(this Sqlable sqlable, string fileds, object whereObj = null)
{
return(JsonConverter.ConvertJson(SelectToJson(sqlable, fileds, whereObj)));
}
/// <summary>
/// 设置查询列执行查询，并且将结果集转成json
/// </summary>
/// <param name="sqlable"></param>
/// <param name="fileds">查询列</param>
/// <param name="whereObj">SQL参数,例如:new{id=1,name="张三"}</param>
/// <returns></returns>
public static string SelectToJson(this Sqlable sqlable, string fileds, object whereObj = null)
{
return(JsonConverter.DataTableToJson(SelectToDataTable(sqlable, fileds, whereObj), sqlable.DB.SerializerDateFormat));
}
/// <summary>
/// GroupBy
/// </summary>
/// <param name="sqlable"></param>
/// <param name="groupBy">GroupBy字段，可以多个</param>
/// <returns></returns>
public static Sqlable GroupBy(this Sqlable sqlable, string groupBy)
{
sqlable.GroupBy = "GROUP BY " + groupBy + " ";
return(sqlable);
}