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How do I read from parameters.yml in a controller in symfony2?

...and then - the needed parameter. $this->container->getParameter('api_user'); This documentation chapter explains it. While $this->get() method in a controller will load a service (doc) In Symfony 2.7 and newer versions, to get a parameter in a controller you can use the following: $th...
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vagrant up failed, /dev/vboxnetctl: no such file or directory

Can be useful, I found this error. The common solution is reinstall virtualbox but there are a better way. 8 Answers ...
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Add Foreign Key to existing table

... To add a foreign key (grade_id) to an existing table (users), follow the following steps: ALTER TABLE users ADD grade_id SMALLINT UNSIGNED NOT NULL DEFAULT 0; ALTER TABLE users ADD CONSTRAINT fk_grade_id FOREIGN KEY (grade_id) REFERENCES grades(id); ...
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Making Python loggers output all messages to stdout in addition to log file

Is there a way to make Python logging using the logging module automatically output things to stdout in addition to the log file where they are supposed to go? For example, I'd like all calls to logger.warning , logger.critical , logger.error to go to their intended places but in addition al...
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Amazon S3 boto - how to create a folder?

...y S3 access tools like S3Fox show like a directory structure, but it's actually just a single file in a bucket. share | improve this answer | follow | ...
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Hide the cursor of an UITextField

...irst, store the text field's selected text range to an instance variable. _textFieldSelectedTextRange = textField.selectedTextRange; textField.selectedTextRange = nil; // hides caret Then, when you want to unhide the caret, simply set the text field's selected text range back to what it was origi...
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gdb: how to print the current line or find the current line number?

...structions- so is tied to assembly concepts. What you are looking for is called de instruction pointer, i.e: The instruction pointer register points to the memory address which the processor will next attempt to execute. The instruction pointer is called ip in 16-bit mode, eip in 32-bit mode,an...
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Sending files using POST with HttpURLConnection

...one can provide me with a good example on how to send a bitmap "file" (actually an in-memory stream) via POST to an Apache HTTP server. I'm not interested in cookies or authentication or anything complicated, but I just want to have a reliable and logic implementation. All the examples that I've see...
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Using Pairs or 2-tuples in Java [duplicate]

...to design this class further regarding equality, immutability, etc., especially if you plan to use instances as keys for hashing. share | improve this answer | follow ...
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How can I declare and define multiple variables in one line using C++?

I always though that if I declare these three variables that they will all have the value 0 10 Answers ...