How can I select only distinct elements for the XML document using XPATH?I've tried to use the 'distinct-values' function but it didn't work for some reason..
I have just seen this in code
var thisYear = (new Date()).getFullYear();
See it live on JSbin.
This is cool, as I've always done something like that in 2 lines, i.e. create the new object instance and assigned it to a variable, then called the method on it.
Is this new method fine to use everywhere? Any gotchas?
MYMESSAGE = "<div>Hello</div><p></p>Hello"
send_mail("testing",MYMESSAGE,"[email protected]",['[email protected]'],fail_silently=False)
However, this message doesn't get the HTML mime type when it is sent. In my outlook, I see the code...
This simple test, of course, works as expected:
scala var b = 2
b: Int = 2
scala b += 1
scala b
res3: Int = 3
Now I bring this into scope:
class A(var x: Int) { def +=(y:Int) { this.x += y } }
implicit def int2A(i:Int) : A = new A(i)
I'm defining a new class and a += operation on it.
I never expected this would affect the way my regular Ints behave.
But it does:
scala var b:Int = 0
b: Int = 0
scala b += 1
scala b
res29: Int = 0
scala b += 2
scala b
res31: Int = 0
Scala seems to prefer the implicit conversion over the natural += that is already defined to Ints. That leads to several questions...
Why? Is this a bug? Is it by design?
Is there a work-around (other than not using "+=")?
Thanks
I want to double click on a div, but right now it "selects"/highlights a word. How do I make it so that this doesn't happen?
I tried:
$(this).hide().show()
and
$(this).blur()
But it still highlights the word.
i build a new website.but the host is in USA.i am not in USA.
i need get the time on the website page to compare with one local Variable.
But because of time difference,it has 8 hous difference?how to solve this problom?
my code
SimpleDateFormat formatter = new SimpleDateFormat("HH:mm:ss");
java.util.Date currentTime = new java.util.Date();
String dateString = formatter.format(currentTime); `
how to revise these code ?
I'm implementing a checking system in C++. It runs executables with different tests. If the solution is not correct, it can take forever for it to finish with certain hard tests. That's why I want to limit the execution time to 5 seconds.
I'm using system() function to run executables:
system("./solution");
.NET has a great WaitForExit() method, what about native C++?. I'm also using Qt, so Qt-based solutions are welcome.
So is there a way to limit external process' execution time to 5 seconds?
Thanks
Originally I though I'll just take a screenshot of my app on the iPhone then tweak it in Photoshop.
The images should be 480 x 320 according to Apple doc, and the dimensions of my screenshot are 480 x 320. But, the screenshot contains notification area (where reception bars, battery life, etc. are displayed)
So, if I chop that part off my image will be a bit shorter and not 480px high.
What do I do? Submit a shorter image? Stretch it up so it's 480px but without the notification bar? Submit it with the notification bar in the image?
How did you create your Default.png?
So I'm working with authlogic, and I'm trying to duplicate the login functionality to the welcome page, so that you can log in by restful url or by just going to the main page. No, I don't know if we'll keep that feature, but I want to test it out anyway. Here's the error message:
RuntimeError in Welcome#index
Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id
The code is below. Basically, what's happening is the index view (the first code snippet) is sending the information from the form to the create method of user_sessions controller. At this point, in theory, it create should just pick up, but it doesn't.
PLEASE help. Please. I've been doing this for about 8 hours. I checked Google. I checked IRC. I checked every book I could find. You don't even have to answer, I can to the grunt work if you just point me in the right direction.
<% form_for @user_session, :url => user_sessions_path do |f| %>
<%= f.text_field :email %><br />
<%= f.password_field :password %>
<%= submit_tag 'Login' %>
<% end %>
class ApplicationController < ActionController::Base
helper :all # include all helpers, all the time
protect_from_forgery # See ActionController::RequestForgeryProtection for details
# Scrub sensitive parameters from your log
# filter_parameter_logging :password
helper_method :current_user_session, :current_user
before_filter :new_session_object
protected
def new_session_object
unless current_user
@user_session = UserSession.new(params[:user_session])
end
end
private
def current_user_session
return @current_user_session if defined?(@current_user_session)
@current_user_session = UserSession.find
end
def current_user
return @current_user if defined?(@current_user)
@current_user = current_user_session && current_user_session.record
end
end
I know that the android plattform is open source. What I am interested in is the share of open source Android apps, thus developers that realease their own apps under a open source license.
Does anybody have an idea, how to get this information?
How to make reference from xml-comment of UpdateChanged to Long1 field ?
public sealed class SystemConfiguration
{
public long Long1;
/// <summary>
/// Make reference to Long1
/// </summary>
public bool UpdateChanged;
}
I need to find the amount of updated rows
UPDATE Table SET value=2 WHERE value2=1
declare @aaa int
set @aaa = @@ROWCOUNT
It doesn't work. How can I do that?
I've deployed a SSIS package to my SQL server.
I can run the package fine by connecting to Integration Services in SSMS and right clicking on it and choosing "Run Package"
However, if I schedule the package, it fails.
It tells me to check the logs for information on why, but there is nothing in there...
Any ideas?
(this is my first SSIS package by the way)
Suppose I have some output from a command (such as ls -1):
a
b
c
d
e
...
I want to apply a command (say echo) to each one, in turn. E.g.
echo a
echo b
echo c
echo d
echo e
...
What's the easiest way to do that in bash?
I wonder if this is possible with straight SQL on MySQL. I need to do SELECT COUNT(*) FROM on each table in the database and output results in one result set.
Is it possible to do with just SQL?
Hello to all!
I am writing a small Django application and I should be able to create
for each model object its periodical task which will be executed with
a certain interval. I'm use for this a Celery application, but i can't understand one thing:
class ProcessQueryTask(PeriodicTask):
run_every = timedelta(minutes=1)
def run(self, query_task_pk, **kwargs):
logging.info('Process celery task for QueryTask %d' %
query_task_pk)
task = QueryTask.objects.get(pk=query_task_pk)
task.exec_task()
return True
Then i'm do following:
>>> from tasks.tasks import ProcessQueryTask
>>> result1 = ProcessQueryTask.delay(query_task_pk=1)
>>> result2 = ProcessQueryTask.delay(query_task_pk=2)
First call is success, but other periodical calls returning the error
- TypeError: run() takes exactly 2 non-keyword arguments (1 given) in
celeryd server.
So, can i pass own params to PeriodicTask run() ?
Thanks!
Hello all!
I have an array and variable.
If the variable does not exist in the array to be added, if there is - remove from the array.
Why not work?
$ar = ["a","b","c"];
$vr = "b";
foreach ($ar as $i => $value) {
if ($value == $vr) {
unset ($ar[$i]);
} else {
$ar[] = $vr;
$ar = array_unique($ar);
}
}
Thanks.
Assume I have method
void SomeMethod(Action callback)
This method does some work in background thread and then invokes callback. The question is - how to block current thread until callback is called ?
There is an example
bool finished = false;
SomeMethod(delegate{
finished = true;
});
while(!finished)
Thread.Sleep();
But I'm sure there should be better way
This is really a few questions in one, I'm wondering what the performance cost is for these things, as I haven't really been following a best practice of any sort for these. The answers may also be useful to other readers, if somebody knows these.
(1) If I need the core data managed object context, is it bad to use
#import "myAppDelegate.h"
//farther down in the code:
NSManagedObjectContext *context = [(myAppDelegate.h*)[[UIApplication sharedApplication] delegate] managedObjectContext];
as opposed to leaving the warning you get if you don't cast the delegate?
(2) What is the cheapest way to hard-code a string? I have been using
return @"myString";
on occasion in some functions where I need to pass it to a variety of places, is it better to do it this way:
static NSString *str = @"myString";
return str;
(3) How costly is it to subclass an object i wrote vs. making a new one, in general?
(4) When I am using core data and navigating through a hierarchy of some sort, is it necessary to turn things back into faults somehow after I read some info from them? or is this done automatically?
Thanks for any help.