SQLSTATE[42S22]: Column not found: 1054 Unknown column – Laravel

You have configured the auth.php and used members table for authentication but there is no user_email field in the members table so, Laravel says SQLSTATE[42S22]: Column not found: 1054 Unknown column ‘user_email’ in ‘where clause’ (SQL: select * from members where user_email = ? limit 1) (Bindings: array ( 0 => ‘test@hotmail.com’, )) Because, it … Read more

C# generic “where constraint” with “any generic type” definition?

There are typically 2 ways to achieve this. Option1: Add another parameter to IGarrage representing the T which should be passed into the IGenericCar<T> constraint: interface IGarrage<TCar,TOther> where TCar : IGenericCar<TOther> { … } Option2: Define a base interface for IGenericCar<T> which is not generic and constrain against that interface interface IGenericCar { … } … Read more

Java Swing; Two classes, where to put if statements and new actionlisteners?

Because ClockListener is a nested class (lower), the enclosing instance (upper) can access the listener’s private fields. If you have a reference to an instance of ClockListener, ClockListener cl = new ClockListener(); you can use it to initialize your timer Timer t = new Timer(1000, cl); and you can use it in your test: if … Read more

SQL : BETWEEN vs =

They are identical: BETWEEN is a shorthand for the longer syntax in the question that includes both values (EventDate >= ’10/15/2009′ and EventDate <= ’10/19/2009′). Use an alternative longer syntax where BETWEEN doesn’t work because one or both of the values should not be included e.g. Select EventId,EventName from EventMaster where EventDate >= ’10/15/2009′ and … Read more