/// <summary>
/// 过滤掉逻辑删除的数据，条件为IsDelete==null or IsDelete = false
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
SuuchaExpression LogicDeleteCondition <T>()
{
if (typeof(T).IsSubclassOf(typeof(BaseEntity)))
{
SuuchaBinaryExpression condition = SuuchaExpression.Equal(new SuuchaMemberExpression("IsDeleted"), new SuuchaConstantExpression(false));
return(SuuchaExpression.Or(condition, SuuchaExpression.Equal(new SuuchaMemberExpression("IsDeleted"), new SuuchaConstantExpression(null))));
}
return(SuuchaExpression.Equal(SuuchaExpression.Constant(1), SuuchaExpression.Constant(1)));
}
/// <summary>
/// 生成主键查询条件
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="keyList"></param>
/// <returns></returns>
SuuchaExpression KeyCondition <T>(List <object[]> keyList)
{
var condition = SuuchaExpression.Equal(SuuchaExpression.Constant(0), SuuchaExpression.Constant(1));
PropertyInfo[] pis = EntityTool.GetKeyProperty <T>();
foreach (var values in keyList)
{
if (values.Length != pis.Length)
{
throw new Exception("主键值数量必须为:" + pis.Length);
}
SuuchaBinaryExpression kExp = null;
for (int i = 0; i < pis.Length; i++)
{
kExp = 0 == i?SuuchaExpression.Equal(pis[i].Name, values[i]) : SuuchaExpression.And(kExp, SuuchaExpression.Equal(pis[i].Name, values[i]));
}
condition = SuuchaExpression.Or(condition, kExp);
}
return(condition);
}
