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Django Rest Framework File Upload

... Use the FileUploadParser, it's all in the request. Use a put method instead, you'll find an example in the docs :) class FileUploadView(views.APIView): parser_classes = (FileUploadParser,) def put(self, request, filename, format=None): fi...
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Difference between DTO, VO, POJO, JavaBeans?

...eans are reusable software components for Java that can be manipulated visually in a builder tool. Practically, they are classes written in the Java programming language conforming to a particular convention. They are used to encapsulate many objects into a single object (the bean), so that they can...
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How to find first element of array matching a boolean condition in JavaScript?

... var result = null; arr.some(function(el, i) { return test.call(ctx, el, i, arr) ? ((result = el), true) : false; }); return result; } var result = find(someArray, isNotNullNorUndefined); share ...
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How to search a specific value in all tables (PostgreSQL)?

... at 11:55 Mike Sherrill 'Cat Recall'Mike Sherrill 'Cat Recall' 78.5k1616 gold badges103103 silver badges156156 bronze badges ...
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Configuring Log4j Loggers Programmatically

... You can add/remove Appender programmatically to Log4j: ConsoleAppender console = new ConsoleAppender(); //create appender //configure the appender String PATTERN = "%d [%p|%c|%C{1}] %m%n"; console.setLayout(new PatternLayout(PATTERN)); console.setThresh...
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MySQL, update multiple tables with one query

...ookID is very important, without it The Books table update would happen to all rows and not only for the row with the specified id. Some lessons are learned the hard way, this one was learned in the terrifing way. – nheimann1 Mar 24 '15 at 15:06 ...
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Should I instantiate instance variables on declaration or in the constructor?

... There is no difference - the instance variable initialization is actually put in the constructor(s) by the compiler. The first variant is more readable. You can't have exception handling with the first variant. There is additionally the initialization block, which is as well put in the constru...
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Postgresql - change the size of a varchar column to lower length

I have a question about the ALTER TABLE command on a really large table (almost 30 millions rows). One of its columns is a varchar(255) and I would like to resize it to a varchar(40) . Basically, I would like to change my column by running the following command: ...
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Secure hash and salt for PHP passwords

It is currently said that MD5 is partially unsafe. Taking this into consideration, I'd like to know which mechanism to use for password protection. ...
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Removing all unused references from a project in Visual Studio projects

... wondered if it possible within various Visual Studio versions to automatically remove all references from a project that were never been used? ...