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What is the equivalent of “none” in django templates?

...s, limit templates to be the only presentation layer and calculate stuff like that in you model. An example: # someapp/models.py class UserProfile(models.Model): user = models.OneToOneField('auth.User') # other fields def get_full_name(self): if not self.user.first_name: ...
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Make absolute positioned div expand parent div height

... child1 . This is because the site I'm currently developing should also work on mobile devices, on which the child2 should be at the bottom, as it contains the navigation which I want below the content on the mobile devices. - Why not 2 masterpages? This is the only 2 divs which are repositioned...
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PDO MySQL: Use PDO::ATTR_EMULATE_PREPARES or not?

... of MySQL+PHP can use prepared statements with the query cache. However, make careful note of the caveats for caching query results in the MySQL documentation. There are many kinds of queries which cannot be cached or which are useless even though they are cached. In my experience the query cache is...
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Android: Clear Activity Stack

...ral activities in my application. and flow is very complicated. When I click the Logout application navigates to login Screen and from there user can exit by cancel button (calling system.exit(0) ) ...
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How can I run a program from a batch file without leaving the console open after the program starts?

For the moment my batch file look like this: 11 Answers 11 ...
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Moq: How to get to a parameter passed to a method of a mocked service

... You can use the Mock.Callback-method: var mock = new Mock<Handler>(); SomeResponse result = null; mock.Setup(h => h.AnsyncHandle(It.IsAny<SomeResponse>())) .Callback<SomeResponse>(r => result = r); // do your test ...
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What is a semaphore?

... Think of semaphores as bouncers at a nightclub. There are a dedicated number of people that are allowed in the club at once. If the club is full no one is allowed to enter, but as soon as one person leaves another person might en...
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What is the difference between statically typed and dynamically typed languages?

...ped languages A language is statically typed if the type of a variable is known at compile time. For some languages this means that you as the programmer must specify what type each variable is (e.g.: Java, C, C++); other languages offer some form of type inference, the capability of the type syste...
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What's the difference between hard and soft floating point numbers?

When I compile C code with my cross toolchain, the linker prints pages of warnings saying that my executable uses hard floats but my libc uses soft floats. What's the difference? ...
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How do you count the number of occurrences of a certain substring in a SQL varchar?

I have a column that has values formatted like a,b,c,d. Is there a way to count the number of commas in that value in T-SQL? ...