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Rails 4 Authenticity Token
...
I think I just figured it out. I changed the (new) default
protect_from_forgery with: :exception
to
protect_from_forgery with: :null_session
as per the comment in ApplicationController.
# Prevent CSRF attacks by raising an exception.
# For APIs, you may want to use :null_session instea...
C dynamically growing array
... shouldn't assume the role of a teacher, for example. I often read answers from those who seemingly don't know how to use realloc (i.e. the currently accepted answer!) telling others how to use it incorrectly, occasionally under the guise that they've omitted error handling, even though this is a co...
How do I exchange keys with values in a dictionary?
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yes, from python.org/dev/peps/pep-3106 The specification implies that the order in which items are returned by .keys(), .values() and .items() is the same (just as it was in Python 2.x), because the order is all derived from the d...
Determine which MySQL configuration file is being used
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Taken from the fantastic "High Performance MySQL" O'Reilly book:
$ which mysqld
/usr/sbin/mysqld
$ /usr/sbin/mysqld --verbose --help | grep -A 1 "Default options"
Default options are read from the following files in the given ord...
How do I format a string using a dictionary in python-3.x?
...[longitude]}'.format(geopoint)
'The title is {0.title}s'.format(a) # the a from your first example
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AngularJS- Login and Authentication in each route and controller
...sLoggedIn : function(){
return(user)? user : false;
}
}
})
From your app.run, you should listen the $routeChangeStart event. When the route will change, it will check if the user is logged (the isLoggedIn method should handle it). It won't load the requested route if the user is not ...
How do I convert a PDF document to a preview image in PHP? [closed]
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From my answer below - If you're loading the PDF from a blob this is how you get the first page instead of the last page: $im->readimageblob($blob); $im->setiteratorindex(0);
– jrjohnson
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What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
...ence purely cosmetic? is there a reason to use one versus the other, apart from that the $() is more legible?
– Mitchell Tracy
Apr 30 '17 at 21:37
2
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How to get temporary folder for current user
...ook at http://msdn.microsoft.com/en-us/library/aa364992(VS.85).aspx
Copied from that page:
The GetTempPath function checks for the existence of environment variables in the following order and uses the first path found:
The path specified by the TMP environment variable.
The path specified by the ...
How to pass arguments to a Button command in Tkinter?
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This can also be done by using partial from the standard library functools, like this:
from functools import partial
#(...)
action_with_arg = partial(action, arg)
button = Tk.Button(master=frame, text='press', command=action_with_arg)
...