/// <summary>
/// GROUP和是否编译判断
/// </summary>
/// <typeparam name="TModel"></typeparam>
/// <param name="query"></param>
/// <returns></returns>
internal CallBackDataReader GetPageReader <TModel>(LambdaQuery <TModel> query) where TModel : IModel, new()
{
if (query.__GroupFields.Count > 0)
{
return(GetGroupPageReader(query));
}
if (_DBAdapter.CanCompileSP && query.__CompileSp)
{
return(GetSpPageReader(query));
}
CheckTableCreated <TModel>();
//var fields = query.GetQueryFieldString(b => b.Length > 500 || b.PropertyType == typeof(byte[]));
var fields = query.GetQueryFieldString();
var rowOver = query.__QueryOrderBy;
if (string.IsNullOrEmpty(rowOver))
{
var table = TypeCache.GetTable(typeof(TModel));
rowOver = string.Format("t1.{0} desc", table.PrimaryKey.Name);
}
var orderBy = System.Text.RegularExpressions.Regex.Replace(rowOver, @"t\d\.", "t.");
var condition = query.GetQueryConditions();
condition = _DBAdapter.SqlFormat(condition);
query.FillParames(this);
var pageIndex = query.__PageIndex;
var pageSize = query.__PageSize;
pageIndex = pageIndex == 0 ? 1 : pageIndex;
pageSize = pageSize == 0 ? 15 : pageSize;
string countSql = string.Format("select count(*) from {0}", condition);
int count = Convert.ToInt32(dbHelper.ExecScalar(countSql));
query.ExecuteTime += dbHelper.ExecuteTime;
query.RowCount = count;
if (count == 0)
{
return(null);
}
int pageCount = (count + pageSize - 1) / pageSize;
if (pageIndex > pageCount)
{
pageIndex = pageCount;
}
var start = pageSize * (pageIndex - 1) + 1;
var end = start + pageSize - 1;
string sql = _DBAdapter.PageSqlFormat(fields, rowOver, condition, start, end, orderBy);
var reader = new CallBackDataReader(dbHelper.ExecDataReader(sql), () =>
{
return(count);
});
query.ExecuteTime += dbHelper.ExecuteTime;
ClearParame();
return(reader);
}
/// <summary>
/// 按编译
/// </summary>
/// <typeparam name="TModel"></typeparam>
/// <param name="query"></param>
/// <returns></returns>
CallBackDataReader GetSpGroupPageReader <TModel>(LambdaQuery <TModel> query) where TModel : IModel, new()
{
CheckTableCreated <TModel>();
var conditions = query.GetQueryConditions();
var fields = query.GetQueryFieldString();
if (!conditions.Contains("group"))
{
throw new Exception("缺少group语法");
}
var rowOver = query.__QueryOrderBy;
if (string.IsNullOrEmpty(rowOver))
{
throw new Exception("Group分页需指定Group排序字段");
//var table = TypeCache.GetTable(typeof(T));
//rowOver = string.Format("t1.{0} desc", table.PrimaryKey.Name);
}
var sort1 = System.Text.RegularExpressions.Regex.Replace(rowOver, @"t\d\.", "");
conditions = _DBAdapter.SqlFormat(conditions);
query.FillParames(this);
var pageIndex = query.__PageIndex;
var pageSize = query.__PageSize;
pageIndex = pageIndex == 0 ? 1 : pageIndex;
pageSize = pageSize == 0 ? 15 : pageSize;
AddParam("pageIndex", pageIndex);
AddParam("pageSize", pageSize);
dbHelper.AddOutParam("count", -1);
Dictionary <string, string> dic = new Dictionary <string, string>();
dic.Add("fields", fields);
dic.Add("rowOver", rowOver);
//dic.Add("sort", sort1);
string sp = CompileSqlToSp(_DBAdapter.TemplateGroupPage, conditions, dic);
CallBackDataReader reader;
reader = new CallBackDataReader(dbHelper.RunDataReader(sp), () =>
{
return(GetOutParam <int>("count"));
});
query.ExecuteTime += dbHelper.ExecuteTime;
ClearParame();
return(reader);
}
/// <summary>
/// 按编译
/// </summary>
/// <typeparam name="TModel"></typeparam>
/// <param name="query"></param>
/// <returns></returns>
CallBackDataReader GetSpPageReader <TModel>(LambdaQuery <TModel> query) where TModel : IModel, new()
{
CheckTableCreated <TModel>();
//var fields = query.GetQueryFieldString(b => b.Length > 500 || b.PropertyType == typeof(byte[]));
var fields = query.GetQueryFieldString();
var rowOver = query.__QueryOrderBy;
if (string.IsNullOrEmpty(rowOver))
{
var table = TypeCache.GetTable(typeof(TModel));
rowOver = string.Format("t1.{0} desc", table.PrimaryKey.Name);
}
var orderBy = System.Text.RegularExpressions.Regex.Replace(rowOver, @"t\d\.", "t.");
var condition = query.GetQueryConditions();
condition = _DBAdapter.SqlFormat(condition);
query.FillParames(this);
var pageIndex = query.__PageIndex;
var pageSize = query.__PageSize;
pageIndex = pageIndex == 0 ? 1 : pageIndex;
pageSize = pageSize == 0 ? 15 : pageSize;
AddParam("pageIndex", pageIndex);
AddParam("pageSize", pageSize);
AddOutParam("count", -1);
Dictionary <string, string> dic = new Dictionary <string, string>();
dic.Add("fields", fields);
dic.Add("sort", orderBy);
dic.Add("rowOver", rowOver);
//string sql = string.Format("{0} with(nolock) where {1}", tableName, where);
string sp = CompileSqlToSp(_DBAdapter.TemplatePage, condition, dic);
CallBackDataReader reader;
reader = new CallBackDataReader(dbHelper.RunDataReader(sp), () =>
{
return(GetOutParam <int>("count"));
});
ClearParame();
query.ExecuteTime += dbHelper.ExecuteTime;
return(reader);
}
/// <summary>
/// 按是否能编译
/// </summary>
/// <typeparam name="TModel"></typeparam>
/// <param name="query"></param>
/// <returns></returns>
CallBackDataReader GetGroupPageReader <TModel>(LambdaQuery <TModel> query) where TModel : IModel, new()
{
if (_DBAdapter.CanCompileSP && query.__CompileSp)
{
return(GetSpGroupPageReader(query));
}
CheckTableCreated <TModel>();
var condition = query.GetQueryConditions();
var fields = query.GetQueryFieldString();
if (!condition.Contains("group"))
{
throw new Exception("缺少group语法");
}
var rowOver = query.__QueryOrderBy;
if (string.IsNullOrEmpty(rowOver))
{
throw new Exception("Group分页需指定Group排序字段");
//var table = TypeCache.GetTable(typeof(T));
//rowOver = string.Format("t1.{0} desc", table.PrimaryKey.Name);
}
var sort1 = System.Text.RegularExpressions.Regex.Replace(rowOver, @"t\d\.", "");
condition = _DBAdapter.SqlFormat(condition);
query.FillParames(this);
var pageIndex = query.__PageIndex;
var pageSize = query.__PageSize;
pageIndex = pageIndex == 0 ? 1 : pageIndex;
pageSize = pageSize == 0 ? 15 : pageSize;
string countSql = string.Format("select count(*) from (select count(*) as a from {0}) t", condition);
int count = Convert.ToInt32(dbHelper.ExecScalar(countSql));
query.ExecuteTime += dbHelper.ExecuteTime;
query.RowCount = count;
if (count == 0)
{
return(null);
}
int pageCount = (count + pageSize - 1) / pageSize;
if (pageIndex > pageCount)
{
pageIndex = pageCount;
}
var start = pageSize * (pageIndex - 1) + 1;
var end = start + pageSize - 1;
string sql = _DBAdapter.PageSqlFormat(fields, rowOver, condition, start, end, "");
//System.Data.Common.DbDataReader reader;
//reader = dbHelper.ExecDataReader(sql);
var reader = new CallBackDataReader(dbHelper.ExecDataReader(sql), () =>
{
return(count);
});
query.ExecuteTime += dbHelper.ExecuteTime;
ClearParame();
return(reader);
}
/// <summary>
/// 对表进行分页并编译成存储过程
/// </summary>
/// <typeparam name="TItem"></typeparam>
/// <param name="query"></param>
/// <param name="count"></param>
/// <returns></returns>
public List <TItem> AutoSpPage <TItem>(LambdaQuery <TItem> query, out int count) where TItem : IModel, new()
{
CheckTableCreated <TItem>();
var fields = query.GetQueryFieldString(b => b.Length > 500 || b.PropertyType == typeof(byte[]));
var rowOver = query.QueryOrderBy;
if (string.IsNullOrEmpty(rowOver))
{
rowOver = "t1.id desc";
}
var orderBy = System.Text.RegularExpressions.Regex.Replace(rowOver, @"t\d\.", "t.");
var condition = query.GetQueryConditions();
//var parame = query.QueryParames;
condition = _DBAdapter.SqlFormat(condition);
count = 0;
query.FillParames(this);
//foreach (var n in parame)
//{
// AddParam(n.Key, n.Value);
//}
var pageIndex = query.PageIndex;
var pageSize = query.PageSize;
pageIndex = pageIndex == 0 ? 1 : pageIndex;
pageSize = pageSize == 0 ? 15 : pageSize;
AddParam("pageIndex", pageIndex);
AddParam("pageSize", pageSize);
AddOutParam("count", 1);
Dictionary <string, string> dic = new Dictionary <string, string>();
dic.Add("fields", fields);
dic.Add("sort", orderBy);
dic.Add("rowOver", rowOver);
//string sql = string.Format("{0} with(nolock) where {1}", tableName, where);
string sp = CompileSqlToSp(_DBAdapter.TemplatePage, condition, dic);
CallBackDataReader reader;
try
{
reader = new CallBackDataReader(helper.RunDataReader(sp), () =>
{
return(GetOutParam <int>("count"));
});
//count = GetOutParam<int>("count");
}
catch (Exception ero)
{
if (ero.Message.Contains("找不到存储过程"))//删除后自动创建
{
spCahe.Remove(sp);
sp = CompileSqlToSp(_DBAdapter.TemplatePage, condition, dic);
reader = new CallBackDataReader(helper.RunDataReader(sp), () =>
{
return(GetOutParam <int>("count"));
});
}
else
{
throw ero;
}
}
var list = reader.GetData <TItem>(out count, query.FieldMapping);
query.RowCount = count;
ClearParame();
//return ObjectConvert.DataReaderToList<TItem>(reader);
return(list);
}
