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How to implement a rule engine?
...;
// use a method call, e.g. 'Contains' -> 'u.Tags.Contains(some_tag)'
return Expression.Call(left, method, right);
}
}
Note that I used 'GreaterThan' instead of 'greater_than' etc. - this is because 'GreaterThan' is the .NET name for the operator, therefore we don't need any...
AngularJS HTTP post to PHP and undefined
... data value to pass an appropriate query string, so PHP is not populating $_POST as you expect.
My suggestion would be to just use the default angularjs setting of application/json as header, read the raw input in PHP, and then deserialize the JSON.
That can be achieved in PHP like this:
$postdat...
pydot and graphviz error: Couldn't import dot_parser, loading of dot files will not be possible
...workX (e.g. this NetworkX example failed). I kept getting: global name 'dot_parser' is not defined. Your solution solved this problem.
– qtips
Aug 6 '13 at 0:41
...
Why rename synthesized properties in iOS with leading underscores? [duplicate]
...ariables had to be instantiated explicitly:
@interface Foo : Bar {
Baz *_qux;
}
@property (retain) Baz *qux;
@end
@implementation Foo
@synthesize qux = _qux;
- (void)dealloc {
[_qux release];
[super dealloc];
}
@end
People would prefix their instance variables to differentiate them from...
Application not picking up .css file (flask/python)
...ride it.
Your directory structure for css should be like:
/app
- app_runner.py
/services
- app.py
/templates
- mainpage.html
/static
/styles
- mainpage.css
Notice that your /styles directory should be under /static
Then, do this
<link re...
Rails I18n validation deprecation warning
... the following line inside the Rails::Application body
config.i18n.enforce_available_locales = true
The possible values are:
false: if you
want to skip the locale validation
don't care about locales
true: if you
want the application to raise an error if an invalid locale is passed (or)
wan...
MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
as the title says, I want to perform a find (one) for a document, by _id, and if doesn't exist, have it created, then whether it was found or was created, have it returned in the callback.
...
How to paste over without overwriting register
...o hide this function (yet)
function! RestoreRegister()
let @" = s:restore_reg
return ''
endfunction
function! s:Repl()
let s:restore_reg = @"
return "p@=RestoreRegister()\<cr>"
endfunction
" NB: this supports "rp that replaces the selection by the contents of @r
vnoremap <sile...
iOS 7 status bar back to iOS 6 default style in iPhone app?
...Options, call
if (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_6_1) {
[application setStatusBarStyle:UIStatusBarStyleLightContent];
self.window.clipsToBounds =YES;
self.window.frame = CGRectMake(0,20,self.window.frame.size.width,self.window.frame.size.height-20);
/...
How should I call 3 functions in order to execute them one after the other?
...we have three asynchronous functions that we want to execute in order, some_3secs_function, some_5secs_function, and some_8secs_function.
Since functions can be passed as arguments in Javascript, you can pass a function as a callback to execute after the function has completed.
If we create the fu...