/// <summary>
/// group by
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="selectAction"></param>
/// <param name="iExpression"></param>
/// <returns></returns>
public static LinqQueryAction <T> GroupBy <T>(
this LinqQueryAction <T> selectAction,
Expression <Func <T, object[]> > iExpression)
{
ConditionBuilder conditionBuilder = new ConditionBuilder();
conditionBuilder.Build(iExpression.Body);
selectAction.CAction.SqlGroupBy(conditionBuilder.Condition);
return(selectAction);
}
/// <summary>
/// order by
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="selectAction"></param>
/// <param name="iExpression"></param>
/// <param name="eByEnum"></param>
/// <returns></returns>
public static LinqQueryAction <T> OrderBy <T>(
this LinqQueryAction <T> selectAction,
Expression <Func <T, object> > iExpression, OrderByEnum eByEnum)
{
ConditionBuilder conditionBuilder = new ConditionBuilder();
conditionBuilder.Build(iExpression.Body);
selectAction.CAction.SqlOrderBy(conditionBuilder.Condition, eByEnum);
return(selectAction);
}
/// <summary>
/// 新增，修改的条件的添加
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="action"></param>
/// <param name="iExpression">直接添加实体类</param>
/// <returns></returns>
public static LinqQueryAction <T> SqlValue <T>(this LinqQueryAction <T> action,
Expression <Func <T, T> > iExpression)
{
ConditionBuilder conditionBuilder = new ConditionBuilder();
conditionBuilder.Build(iExpression.Body);
if (conditionBuilder.ConObjects.Count > 0)
{
action.CAction.SetDbEntity((BaseEntity)conditionBuilder.ConObjects[0]);
}
return(action);
}
/// <summary>
/// 新增，修改的条件的添加
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="action"></param>
/// <param name="iExpression"></param>
/// <returns></returns>
public static LinqQueryAction <T> SqlValue <T>(this LinqQueryAction <T> action,
Expression <Func <T, bool> > iExpression)
{
ConditionBuilder conditionBuilder = new ConditionBuilder();
conditionBuilder.Build(iExpression.Body);
for (int i = 0; i < conditionBuilder.ConObjects.Count; i++)
{
action.CAction.SqlKeyValue(conditionBuilder.ConObjects[i].ToString(), conditionBuilder.Arguments[i]);
}
return(action);
}
/// <summary>
/// 多个新增同时操作
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="action"></param>
/// <param name="iExpression">直接添加实体类</param>
/// <returns></returns>
public static LinqQueryAction InsertList(this LinqQueryAction action,
Expression <Func <List <BaseEntity> > > iExpression)
{
ConditionBuilder conditionBuilder = new ConditionBuilder();
conditionBuilder.Build(iExpression.Body);
if (conditionBuilder.Arguments.Length > 0)
{
List <BaseEntity> entities = ((List <BaseEntity>)conditionBuilder.Arguments[0]).Cast <BaseEntity>().ToList();
((InserAction)action.CAction).InsertList(entities);
}
return(action);
}
/// <summary>
/// 查找，删除，更新的where条件的添加
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="dataBaseAction"></param>
/// <param name="wherePredicate"></param>
/// <returns></returns>
public static LinqQueryAction <T> Where <T>(this LinqQueryAction <T> dataBaseAction, Expression <Func <T, bool> > wherePredicate)
where T : BaseEntity
{
string command = string.Empty;
ConditionBuilder conditionBuilder = new ConditionBuilder();
conditionBuilder.Build(wherePredicate.Body);
if (!String.IsNullOrEmpty(conditionBuilder.Condition))
{
command = conditionBuilder.Condition;
}
dataBaseAction.CAction.SqlWhere(command);
return(dataBaseAction);
}
