//private Dictionary<string, EntityBase> _dicInstance = new Dictionary<string, EntityBase>();//已经实例化的实体
//private IList _baseList;
/// <summary>
/// 别名映射
/// </summary>
/// <param name="table"></param>
/// <param name="aliasName"></param>
public AliasTableMapping(BQLEntityTableHandle table, TableAliasNameManager belongManager, EntityMappingInfo mappingInfo)
{
_belongManager = belongManager;
_entityInfo = table.GetEntityInfo();
_table = new BQLAliasHandle(table, _belongManager.NextTableAliasName());
_mappingInfo = mappingInfo;
InitParam(table);
}
/// <summary>
/// 添加到库信息
/// </summary>
/// <param name="table"></param>
internal void AddToDB(BQLEntityTableHandle table)
{
string key = table.GetEntityInfo().EntityType.FullName;
if (!_dicTables.ContainsKey(key))
{
_dicTables[key] = table;
}
}
/// <summary>
/// 获取主表的别名信息
/// </summary>
/// <param name="table"></param>
/// <returns></returns>
public BQLAliasHandle GetPrimaryAliasHandle(BQLTableHandle table)
{
BQLEntityTableHandle eHandle = table as BQLEntityTableHandle;
if (Buffalo.Kernel.CommonMethods.IsNull(eHandle))
{
return(null);
}
if (eHandle.GetEntityInfo() == _primaryTable.EntityInfo)
{
return(_primaryTable.TableInfo);
}
return(null);
}
/// <summary>
/// 初始化字段
/// </summary>
/// <param name="table"></param>
/// <param name="paramIndex"></param>
private void InitParam(BQLEntityTableHandle table)
{
_dicParams = new Dictionary <string, BQLAliasParamHandle>();
foreach (EntityPropertyInfo info in table.GetEntityInfo().PropertyInfo)
{
string prmAliasName = _belongManager.NextParamAliasName(_table.GetAliasName());
BQLAliasParamHandle prm = BQL.Tables[_table.GetAliasName()][info.ParamName].As(prmAliasName);
_dicPropertyInfo[prmAliasName] = info;
prm.ValueDbType = info.SqlType;
_dicParams[info.PropertyName] = prm;
}
}
/// <summary>
/// 获取真正要显示的属性集合
/// </summary>
/// <param name="handle"></param>
/// <returns></returns>
public List <BQLParamHandle> GetShowProperty(BQLTableHandle table)
{
List <BQLParamHandle> propertys = new List <BQLParamHandle>();
if (_showProperty != null && _showProperty.Count > 0)
{
foreach (BQLParamHandle param in _showProperty)
{
propertys.Add(param);
}
return(propertys);
}
BQLEntityTableHandle eTable = table as BQLEntityTableHandle;
if (!CommonMethods.IsNull(eTable))
{
foreach (EntityPropertyInfo info in eTable.GetEntityInfo().PropertyInfo)
{
string name = info.PropertyName;
bool hidden = false;
foreach (BQLParamHandle param in _hideProperty)
{
BQLEntityParamHandle eph = param as BQLEntityParamHandle;
if (!CommonMethods.IsNull(eph))
{
if (eph.PInfo.PropertyName == name)
{
hidden = true;
break;
}
}
}
if (!hidden)
{
propertys.Add(eTable[info.PropertyName]);
}
}
return(propertys);
}
if (!CommonMethods.IsNull(table))
{
propertys.Add(table._);
}
return(propertys);
}
/// <summary>
/// 查询是否存在符合条件的记录
/// </summary>
/// <param name="BQL">sql语句</param>
/// <returns></returns>
public bool ExistsRecord <E>(ScopeList lstScope)
where E : EntityBase, new()
{
Type eType = typeof(E);
BQLEntityTableHandle table = _oper.DBInfo.FindTable(eType);
if (CommonMethods.IsNull(table))
{
_oper.DBInfo.ThrowNotFondTable(eType);
}
List <BQLParamHandle> lstParams = new List <BQLParamHandle>();
lstParams.Add(table[table.GetEntityInfo().PrimaryProperty[0].PropertyName]);
BQLCondition where = BQLCondition.TrueValue;
where = FillCondition(where, table, lstScope);
BQLQuery bql = BQL.Select(lstParams.ToArray())
.From(table)
.Where(where)
.OrderBy(GetSort(lstScope.OrderBy, table));
return(ExistsRecord <E>(bql, lstScope.UseCache));
}
/// <summary>
/// 转换排序信息
/// </summary>
/// <param name="lstScort"></param>
/// <param name="table"></param>
/// <returns></returns>
protected BQLParamHandle[] GetSort(SortList lstScort, BQLEntityTableHandle table)
{
return(BQLConditionScope.GetSort(lstScort, table, table.GetEntityInfo()));
}
/// <summary>
/// 填充信息
/// </summary>
/// <param name="condition"></param>
/// <param name="table"></param>
/// <param name="lstScope"></param>
/// <param name="entityType"></param>
public BQLCondition FillCondition(BQLCondition condition, BQLEntityTableHandle table, ScopeList lstScope)
{
return(BQLConditionScope.FillCondition(condition, table, lstScope, table.GetEntityInfo()));
}