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C++ - passing references to std::shared_ptr or boost::shared_ptr
...a message somewhere. It may be a large message so rather than using a std::string that likely gets copied as it is passed around to multiple places, we use a shared_ptr to a string:
void send_message(std::shared_ptr<std::string> msg)
{
std::cout << (*msg.get()) << std::endl;
}...
When to use static classes in C# [duplicate]
...ery cheap operation in most languages, so speed is not an issue. Adding an extra line of code to the consumer is a low cost for laying the foundation of a much more maintainable solution in the future. And finally, if you want to avoid creating instances, simply create a singleton wrapper of your cl...
What is the 'new' keyword in JavaScript?
...e) {
this.name = name;
}
var john = new Person('John');
However the extra benefit that ECMAScript has is you can extend with the .prototype property, so we can do something like...
Person.prototype.getName = function() { return this.name; }
All objects created from this constructor will no...
How do I call the default deserializer from a custom deserializer in Jackson
...lizer) defaultDeserializer).resolve(ctxt);
}
public static void main(String[] args) throws JsonParseException, JsonMappingException, IOException
{
SimpleModule module = new SimpleModule();
module.setDeserializerModifier(new BeanDeserializerModifier()
{
@Override public Json...
How to disable Django's CSRF validation?
...ble CSRF and have session authentication for the whole app, you can add an extra middleware like this -
class DisableCSRFMiddleware(object):
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
setattr(request, '_dont_enforce_csrf_checks', True)...
How can I run a PHP script in the background after a form is submitted?
...y notification process that happens (or doesn't). (shell_exec returns as a string and this was easier than using exec, assigning the output to a variable and then opening a file to write to.)
I'm using the following line to invoke the email script:
shell_exec("/path/to/php /path/to/send_notificati...
Best practice for Django project working directory structure
...s.py
templatetags/
__init__.py
templatetag_extras.py
gulpfile.js
manage.py
requirements.txt
I think this:
settings.py
settings_dev.py
settings_production.py
is better than this:
settings/__init__.py
settings/base.py
settings/d...
Foreign Key naming scheme
... style I'm actually using (but with camelCase)- I thought I'd add a bit of extra description into the names for the purposes of illustrating their linkages.
– nickf
Oct 14 '08 at 0:11
...
mongodb: insert if not exists
...u want to do an "upsert". MongoDB has built-in support for this. Pass an extra parameter to your update() call: {upsert:true}. For example:
key = {'key':'value'}
data = {'key2':'value2', 'key3':'value3'};
coll.update(key, data, upsert=True); #In python upsert must be passed as a keyword argumen...
Django class-based view: How do I pass additional parameters to the as_view method?
...m urls.py
https://docs.djangoproject.com/en/1.7/topics/http/urls/#passing-extra-options-to-view-functions
This also works for generic views. Example:
url(r'^$', views.SectionView.as_view(), { 'pk': 'homepage', 'another_param':'?'}, name='main_page'),
In this case the parameters passed to the vi...