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IPN vs PDT in Paypal
I'm having some trouble choosing between PayPal's Instant Payment Notification (IPN) and Payment Data Transfer (PDT).
3 Ans...
How should one go about choosing a default TCP/IP port for a new service?
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If all developers go by that logic it would mean that all new services gather around the few unassigned ports. What would the probability be that a service is running on an assigned port vs an unassigned port. (Sorry if I'm...
django MultiValueDictKeyError error, how do I deal with it
... on standard dicts and is a way to fetch a value while providing a default if it does not exist.
is_private = request.POST.get('is_private', False)
Generally,
my_var = dict.get(<key>, <default>)
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XPath to find elements that does not have an id or class
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That will give you all tr elements lacking both id and class attributes. If you want all tr elements lacking one of the two, use or instead of and:
//tr[not(@id) or not(@class)]
When attributes and elements are used in this way, if the attribute or element has a value it is treated as if it's t...
Best way to allow plugins for a PHP application
...eners;
$num_args = func_num_args();
$args = func_get_args();
if($num_args < 2)
trigger_error("Insufficient arguments", E_USER_ERROR);
// Hook name should always be first argument
$hook_name = array_shift($args);
if(!isset($listeners[$hook_name]))
return...
Detecting design mode from a Control's constructor
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@Filip Kunc: if this doesn't work in OnPaint, you may check this condition in constructor and store it in a class field.
– IMil
Apr 6 '16 at 18:37
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Use PHP composer to clone git repo
...S TO THE REPOSITORY?
Yes?
DOES THE REPOSITORY HAVE A composer.json FILE
If you have a repository you can write to: Add a composer.json file, or fix the existing one, and DON'T use the solution below.
Go to @igorw 's answer
ONLY USE THIS IF YOU DON'T HAVE A REPOSITORY
OR IF THE REPOSITORY DOES N...
Changing the interval of SetInterval while it's running
...llback = function(tick, counter) {
return function() {
if (--tick >= 0) {
window.setTimeout(internalCallback, ++counter * factor);
callback();
}
}
}(times, 0);
window.setTimeout(internalCallback, factor);
};
// cons...
MySql : Grant read only options?
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If there is any single privilege that stands for ALL READ operations on database.
It depends on how you define "all read."
"Reading" from tables and views is the SELECT privilege. If that's what you mean by "all read" then...
Get generated id after insert
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The insert method returns the id of row just inserted or -1 if there was an error during insertion.
long id = db.insert(...);
where db is SQLiteDatabase.
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