/// <summary>
/// 初始化数据库
/// </summary>
public static void InitDB()
{
//if (_isInit)
//{
// return;
//}
Type type = typeof(T);
DataAccessLoader.AppendModelAssembly(type.Assembly);
DataAccessLoader.InitConfig();
_db = GetDB();
Type baseType = typeof(BQLEntityTableHandle);
PropertyInfo[] infos = type.GetProperties(BindingFlags.Public | BindingFlags.Static);
foreach (PropertyInfo info in infos)
{
Type objType = info.PropertyType;
if (!objType.IsSubclassOf(baseType))
{
continue;
}
BQLEntityTableHandle handle = FastValueGetSet.GetGetMethodInfo(info.Name, type).Invoke(null, new object[] { }) as BQLEntityTableHandle;
AddToDB(handle);
}
StaticConnection.ClearCacheOperate(_db);
#if DEBUG
_db.SqlOutputer.OnOutputerCreate += new Buffalo.DB.MessageOutPuters.CreateOutputerHandle(SqlOutputer_OnOutputerCreate);
#endif
}
/// <summary>
/// 查找实体的关联属性信息属性
/// </summary>
/// <param name="propertyName"></param>
/// <returns></returns>
public BQLEntityTableHandle FindChildEntity(string propertyName)
{
BQLEntityTableHandle table = null;
PropertyInfoHandle handle = FastValueGetSet.GetPropertyInfoHandle(propertyName, this.GetType());
if (!handle.HasGetHandle)
{
throw new MissingMemberException("不存在属性:" + propertyName);
}
table = handle.GetValue(this) as BQLEntityTableHandle;
return(table);
}
private BQLEntityTableHandle _belongTable;//父表
/// <summary>
/// 实体属性信息
/// </summary>
/// <param name="entityInfo">实体信息</param>
/// <param name="propertyName">属性名</param>
internal BQLEntityParamHandle(EntityInfoHandle entityInfo, string propertyName, BQLEntityTableHandle belongTable)
{
this.entityInfo = entityInfo;
if (propertyName != "*")
{
pinfo = entityInfo.PropertyInfo[propertyName];
if (pinfo == null)
{
throw new MissingMemberException(entityInfo.EntityType.FullName + "类中不包含属性:" + propertyName);
}
this._valueDbType = pinfo.SqlType;
}
_belongTable = belongTable;
}
internal override string DisplayValue(KeyWordInfomation info)
{
//if (info.Infos.IsPutPropertyName && !info.IsWhere)
//{
// return DisplayDataSetValue(info);
//}
IDBAdapter idba = info.DBInfo.CurrentDbAdapter;
StringBuilder sbRet = new StringBuilder();
BQLEntityTableHandle outputTable = _belongTable;
if (string.IsNullOrEmpty(entityInfo.TableName))
{
outputTable = info.FromTable;
}
if (info.Infos.IsShowTableName)
{
if (info.AliasManager != null && !CommonMethods.IsNull(outputTable))
{
string aliasName = info.AliasManager.GetTableAliasName(outputTable);
if (!string.IsNullOrEmpty(aliasName))
{
sbRet.Append(idba.FormatTableName(aliasName));
sbRet.Append(".");
}
}
else if (!string.IsNullOrEmpty(entityInfo.TableName))
{
sbRet.Append(idba.FormatTableName(entityInfo.TableName));
sbRet.Append(".");
}
}
if (pinfo == null)//查询全部字段时候
{
sbRet.Append("*");
}
else
{
sbRet.Append(idba.FormatParam(pinfo.ParamName));
}
return(sbRet.ToString());
}
/// <summary>
/// 设置所属的实体的信息
/// </summary>
/// <param name="entityInfo">实体信息</param>
/// <returns></returns>
protected void SetEntityInfo(EntityInfoHandle entityInfo, BQLEntityTableHandle parentTable, string propertyName)
{
_entityInfo = entityInfo;
_parentTable = parentTable;
_propertyName = propertyName;
if (string.IsNullOrEmpty(propertyName))
{
_entityKey = entityInfo.EntityType.Name;
}
else
{
if (!CommonMethods.IsNull(parentTable))
{
StringBuilder sb = new StringBuilder(50);
sb.Append(parentTable.GetEntityKey());
sb.Append(".");
sb.Append(propertyName);
_entityKey = sb.ToString();
}
}
}
/// <summary>
/// 查找实体属性
/// </summary>
/// <param name="propertyName"></param>
/// <returns></returns>
public BQLEntityParamHandle FindParamHandle(string propertyName)
{
string[] strpNames = propertyName.Split('.');
BQLEntityTableHandle currentTable = this;
for (int i = 0; i < strpNames.Length; i++)
{
if (i == strpNames.Length - 1)
{
return(currentTable.FindParam(strpNames[i]));
}
else
{
currentTable = FindChildEntity(strpNames[i]);
if (CommonMethods.IsNull(currentTable))
{
throw new MissingMemberException("不存在属性:" + strpNames[i]);
}
}
}
return(null);
}
public BQLEntityTableHandle(EntityInfoHandle entityInfo, BQLEntityTableHandle parentTable, string propertyName)
{
SetEntityInfo(entityInfo, parentTable, propertyName);
}
public BQLEntityTableHandle(Type entityType, BQLEntityTableHandle parentTable, string propertyName)
{
SetEntityInfo(EntityInfoManager.GetEntityHandle(entityType), parentTable, propertyName);
}
/// <summary>
/// 添加到库信息
/// </summary>
/// <param name="table"></param>
/// <returns></returns>
protected static BQLEntityTableHandle AddToDB(BQLEntityTableHandle table)
{
_db.AddToDB(table);
return(table);
}
