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Convert timestamp to date in MySQL query

...in PHP (date('Y-m-d',$row->user_created_at)) - this (both variants, SQL and PHP) shows up as 2018-11-06 – Chris S. Nov 7 '18 at 9:19 ...
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Meaning of Android Studio error: Not annotated parameter overrides @NonNull parameter

I'm trying out Android Studio. Upon creating a new project and adding a default onSaveInstanceState method to the create MyActivity class, when I try to commit the code to Git, I get a strange error I don't understand. The code is this: ...
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CSS checkbox input styling

... answered Jul 13 '09 at 17:23 Andrew HareAndrew Hare 310k6363 gold badges611611 silver badges614614 bronze badges ...
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Is not an enclosing class Java

I'm trying to make a Tetris game and I'm getting the compiler error 11 Answers 11 ...
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“Cannot evaluate expression because the code of the current method is optimized” in Visual Studio 20

I am using Visual Studio 2010 in debug mode and I have "optimize code" unchecked. I can't quick watch (or hover on) any variable in the debugger. I get this error "Cannot evaluate expression because the code of the current method is optimized". ...
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Fully custom validation error message with Rails

... Now, the accepted way to set the humanized names and custom error messages is to use locales. # config/locales/en.yml en: activerecord: attributes: user: email: "E-mail address" errors: models: user: attributes: e...
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How to check task status in Celery?

... Return the task_id (which is given from .delay()) and ask the celery instance afterwards about the state: x = method.delay(1,2) print x.task_id When asking, get a new AsyncResult using this task_id: from celery.result import AsyncResult res = AsyncResult("your-task-id") ...
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Why can't I assign a *Struct to an *Interface?

I'm just working through the Go tour , and I'm confused about pointers and interfaces. Why doesn't this Go code compile? 4...
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Add a background image to shape in XML Android

...erlist: <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item> <shape android:shape="rectangle" android:padding="10dp"> <corners android:bottomRightRadius="5dp" ...
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Is the practice of returning a C++ reference variable evil?

... In general, returning a reference is perfectly normal and happens all the time. If you mean: int& getInt() { int i; return i; // DON'T DO THIS. } That is all sorts of evil. The stack-allocated i will go away and you are referring to nothing. This is also evil: ...