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WARNING: Can't verify CSRF token authenticity rails
I am sending data from view to controller with AJAXand I got this error:
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Is there a (repeat-last-command) in Emacs?
Frequently, I've dug into apropos and docs looking for something like the following only to give up to get back to the task at hand:
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ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
... to set up a VPN with a Raspberry Pi, and the first step is gaining the ability to ssh into the device from outside my local network. For whatever reason, this is proving to be impossible and I haven't the slightest clue why. When I try to ssh into my server with user@hostname , I get the error...
deny direct access to a folder and file by htaccess
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What’s the best way to check if a file exists in C++? (cross platform)
I have read the answers for What's the best way to check if a file exists in C? (cross platform) , but I'm wondering if there is a better way to do this using standard c++ libs? Preferably without trying to open the file at all.
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How to normalize an array in NumPy?
I would like to have the norm of one NumPy array. More specifically, I am looking for an equivalent version of this function
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Is there a minlength validation attribute in HTML5?
It seems the minlength attribute for an <input> field doesn't work.
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How to split a comma-separated string?
I have a String with an unknown length that looks something like this
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How do I specify unique constraint for multiple columns in MySQL?
I have a table:
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