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don't fail jenkins build if execute shell fails
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You don't need the || exit 0 in the first case, if command returns false the execution will stop. That said, the second option is very helpful!
– Nir Alfasi
Dec 2 '15 at 21:21
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django admin - add custom form fields that are not part of the model
... extra_field = self.cleaned_data.get('extra_field', None)
# ...do something with extra_field here...
return super(YourModelForm, self).save(commit=commit)
class Meta:
model = YourModel
To have the extra fields appearing in the admin just:
edit your admin.py and s...
What is the main purpose of setTag() getTag() methods of View?
...Then you have to create a unique onClick method for each view even if they do the similar things, like:
public void onClick(View v) {
doAction(1); // 1 for button1, 2 for button2, etc.
}
This is because onClick has only one parameter, a View, and it has to get other information from instance ...
How many Activities vs Fragments?
...hat the tutorials are very simplified. They just introduce Fragments but I do not agree with the pattern as suggested.
I also agree that it is not a good idea to duplicate your app's logic across many Activities (see DRY Principle on wikipedia).
I prefer the pattern used by the ActionBarSherlock...
Find an item in List by LINQ?
...tem in a list of strings. Normally I use for loop or anonymous delegate to do it like this:
14 Answers
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Java: Clear the console
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Since there are several answers here showing non-working code for Windows, here is a clarification:
Runtime.getRuntime().exec("cls");
This command does not work, for two reasons:
There is no executable named cls.exe or cls.com in a standard Windows installation that could be invoked via R...
Get Insert Statement for existing row in MySQL
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There doesn't seem to be a way to get the INSERT statements from the MySQL console, but you can get them using mysqldump like Rob suggested. Specify -t to omit table creation.
mysqldump -t -u MyUserName -pMyPassword MyDatabase MyT...
Difference between abstract class and interface in Python
...ise NotImplementedError( "Should have implemented this" )
Because Python doesn't have (and doesn't need) a formal Interface contract, the Java-style distinction between abstraction and interface doesn't exist. If someone goes through the effort to define a formal interface, it will also be an abs...
How do I dynamically change the content in an iframe using jquery?
.../javascript" src="jquery.js"></script>
<script>
$(document).ready(function(){
var locations = ["http://webPage1.com", "http://webPage2.com"];
var len = locations.length;
var iframe = $('#frame');
var i = 0;
setInterval(function () {
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Format date and time in a Windows batch script
In a Windows (Windows XP) batch script I need to format the current date and time for later use in files names, etc.
33 An...