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Prevent segue in prepareForSegue method?
...have to implement the method
- (BOOL)shouldPerformSegueWithIdentifier:(NSString *)identifier sender:(id)sender
In your view controller. You do your validation there, and if it's OK then return YES; if it's not then return NO; and the prepareForSegue is not called.
Note that this method doesn't...
Django Template Variables and Javascript
...le of template filter:
// myapp/templatetags/js.py
from django.utils.safestring import mark_safe
from django.template import Library
import json
register = Library()
@register.filter(is_safe=True)
def js(obj):
return mark_safe(json.dumps(obj))
This template filters converts variable to ...
Why does C# allow {} code blocks without a preceding statement?
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In the context you give, there is no significance. Writing a constant string to the console is going to work the same way anywhere in program flow.1
Instead, you typically use them to restrict the scope of some local variables. This is further elaborated here and here. Look at João Angelo’s...
How to get current language code with Swift?
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Cannot assign value of type 'String' to type 'Locale?'
– Puji Wahono
Jul 4 '19 at 7:40
2
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Is there a naming convention for MySQL?
...work that you might want to carry out. For example you might just want to call an index foo_bar_idx1 or foo_idx1 - totally up to you but worth considering.
Singular vs Plural Column Names
It might be a good idea to address the thorny issue of plural vs single in your column names as well as your t...
Mockito.any() pass Interface with Generics
...sm to allow for generics:
import static org.mockito.Matchers.any;
List<String> list = any();
when(callMyMethod.getResult(list)).thenReturn(myResultString);
Hope this helps someone.
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Getting View's coordinates relative to the root layout
...fill_parent" android:layout_height="wrap_content" android:text="@string/hello" android:id="@+id/tv" android:layout_marginBottom="69dip" android:layout_marginLeft="69dip" />
– pengwang
Sep 3 '10 at 9:30
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Calling startActivity() from outside of an Activity context
I have implemented a ListView in my Android application. I bind to this ListView using a custom subclass of the ArrayAdapter class. Inside the overridden ArrayAdapter.getView(...) method, I assign an OnClickListener . In the onClick method of the OnClickListener , I want to launch a n...
in_array multiple values
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@sMyles I had tried using string value in array instead of integer. You can try once from your side and let me know.
– Jaymin
Dec 8 '18 at 5:20
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RESTful on Play! framework
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Thanks, I tested it by using curl to send JSON string, and it appears that play framework did not recognize the application/json content type: groups.google.com/group/play-framework/browse_thread/thread/…
– Gary
Dec 28 '10 at 17:03...