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When saving, how can you check if a field has changed?
...erson(models.Model):
name = models.CharField()
__original_name = None
def __init__(self, *args, **kwargs):
super(Person, self).__init__(*args, **kwargs)
self.__original_name = self.name
def save(self, force_insert=False, force_update=False, *args, **kwargs):
...
When to use extern in C++
...es the header knows about it, but you only need to “define” it once in one of your source files.
To clarify, using extern int x; tells the compiler that an object of type int called x exists somewhere. It's not the compilers job to know where it exists, it just needs to know the type and name s...
Comparison between Mockito vs JMockit - why is Mockito voted better than JMockit? [closed]
...tools for
Java which also overcome the
limitations of the conventional ones,
between them PowerMock, jEasyTest, and
MockInject. The one that comes closest
to the feature set of JMockit is
PowerMock, so I will briefly evaluate
it here (besides, the other two are
more limited and don't...
How do I create a transparent Activity on Android?
...he following style in your res/values/styles.xml file (if you don’t have one, create it.) Here’s a complete file:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="Theme.Transparent" parent="android:Theme">
<item name="android:windowIsTranslucent">tru...
Android “Only the original thread that created a view hierarchy can touch its views.”
...
One brief comment on this. I had a separate thread that was trying to modify the UI, and the above code worked, but I had call runOnUiThread from the Activity object. I had to do something like myActivityObject.runOnUiThrea...
Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
... specify the picture size you want with the type argument, which should be one of square (50x50), small (50 pixels wide, variable height), normal (100 pixels wide, variable height), and large (about 200 pixels wide, variable height)" Via Graph API on Facebook
– user603284
...
How can I clear an HTML file input with JavaScript?
...
How about removing that node, creating a new one with the same name?
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How to change the value of ${user} variable used in Eclipse templates
...rlhon.net/blog/2005/09/07/eclipse-username/ is a dead link...
Here's a new one: https://web.archive.org/web/20111225025454/http://morlhon.net:80/blog/2005/09/07/eclipse-username/
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How to set default value for form field in Symfony2?
...is solution as it is not a solution for the problem (as Hubert Perron mentioned above). I am trying to get a better solution in this post stackoverflow.com/questions/17986481/…
– herrjeh42
Aug 1 '13 at 11:29
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How to export and import environment variables in windows?
...iables sync on different machines. I just want to export the settings from one computer and import to other ones.
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