//获取对应的SQL 语句
private SqlString[] getSqlString(Type entityType, OperationType operationType)
{
ModelMappingInfo mappingInfo = AttMappingManager.Instance.GetModelMappingInfo(entityType);
string xmlFileName = mappingInfo.XmlConfigFileName;
string sqlName = getSqlName(operationType);
MB.Orm.Mapping.Xml.SqlConfigHelper xmlConfig = MB.Orm.Mapping.Xml.SqlConfigHelper.Instance;
SqlString[] sqlStrs = xmlConfig.GetSqlString(xmlFileName, sqlName);
string cacheKey = GenerateCacheKey(entityType, operationType);
CacheProxy.CacheSql(cacheKey, sqlStrs);
return(sqlStrs);
}
/// <summary>
/// 根据配置的属性信息生成选择的Select 语句。
/// </summary>
/// <param name="entityType"></param>
/// <param name="properties"></param>
/// <returns></returns>
public override SqlString[] GenerateSimpleSelectSql(Type entityType, string[] properties)
{
ModelMappingInfo mappingInfo = AttMappingManager.Instance.GetModelMappingInfo(entityType);
string tableName = mappingInfo.MapTable;
List <string> columns = prepareSelectSql(mappingInfo, properties);
string sql = new StringBuilder("SELECT ").Append(string.Join(",", columns.ToArray())).Append(" FROM ").Append(tableName).ToString();
SqlString ss = new SqlString(sql, null);
string cacheKey = GenerateCacheKey(entityType, OperationType.Select, properties);
SqlString[] asql = new SqlString[] { ss };
CacheProxy.CacheSql(cacheKey, asql);
return(asql);
}
/// <summary>
/// 通过键值自动获取某一条记录的SQL 语句。
/// </summary>
/// <param name="entityType"></param>
/// <param name="properties"></param>
/// <returns></returns>
public override SqlString[] GenerateFindByKeySql(Type entityType, string[] properties)
{
ModelMappingInfo mappingInfo = AttMappingManager.Instance.GetModelMappingInfo(entityType);
string tableName = mappingInfo.MapTable;
List <string> whereString = new List <string>();
List <SqlParamInfo> sqlParams = new List <SqlParamInfo>();
List <string> selectString = prepareUpdateSql(mappingInfo, properties, ref whereString, ref sqlParams);
SqlString ss = new SqlString(new StringBuilder("SELECT ").Append(string.Join(",", selectString.ToArray()))
.Append(" FROM ").Append(tableName).Append(" WHERE ").Append(string.Join(" AND ", whereString.ToArray())).ToString(), sqlParams);
string cacheKey = GenerateCacheKey(entityType, OperationType.SelectByKey, properties);
SqlString[] asql = new SqlString[] { ss };
CacheProxy.CacheSql(cacheKey, asql);
return(asql);
}
/// <summary>
/// 根据对象配置信息获取自动生成的Delete SQL 语句。
/// </summary>
/// <param name="entityType"></param>
/// <returns></returns>
public override SqlString[] GenerateDeleteSql(Type entityType)
{
SqlString sqlStr = null;
ModelMappingInfo mappingInfo = AttMappingManager.Instance.GetModelMappingInfo(entityType);
string tableName = mappingInfo.MapTable;
List <SqlParamInfo> sqlParams = new List <SqlParamInfo>();
List <string> whereString = prepareDeleteSql(mappingInfo, ref sqlParams);
StringBuilder strSqlBuilder = new StringBuilder();
strSqlBuilder.Append(" DELETE FROM ").Append(tableName).Append(" WHERE ").Append(string.Join(" AND ", whereString.ToArray()));
sqlStr = new SqlString(strSqlBuilder.ToString(), sqlParams);
string cacheKey = GenerateCacheKey(entityType, OperationType.Delete);
SqlString[] asql = new SqlString[] { sqlStr };
CacheProxy.CacheSql(cacheKey, asql);
return(asql);
}
/// <summary>
/// 根据配置的信息自动产生Insert 的SQL 语句。
/// </summary>
/// <param name="entityType"></param>
/// <param name="properties"></param>
/// <returns></returns>
public override SqlString[] GenerateInsertSql(Type entityType, string[] properties)
{
SqlString sqlStr = null;
ModelMappingInfo mappingInfo = AttMappingManager.Instance.GetModelMappingInfo(entityType);
string tableName = mappingInfo.MapTable;
List <string> parameters = new List <string>();
List <SqlParamInfo> sqlParams = new List <SqlParamInfo>();
List <string> fields = prepareInsertSql(mappingInfo, properties, ref parameters, ref sqlParams);
StringBuilder strSqlBuilder = new StringBuilder("INSERT INTO ").
Append(tableName).Append("(").Append(string.Join(",", fields.ToArray())).
Append(") VALUES(").Append(string.Join(",", parameters.ToArray())).Append(") ");
sqlStr = new SqlString(strSqlBuilder.ToString(), sqlParams);
string cacheKey = GenerateCacheKey(entityType, OperationType.Insert);
SqlString[] asql = new SqlString[] { sqlStr };
CacheProxy.CacheSql(cacheKey, asql);
return(asql);
}
