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Creating a dynamic choice field
... self.fields['waypoints'] = forms.ChoiceField(
choices=[(o.id, str(o)) for o in Waypoint.objects.filter(user=user)]
)
from your view while initiating the form pass the user
form = waypointForm(user)
in case of model form
class waypointForm(forms.ModelForm):
def __in...
Notification passes old Intent Extras
i am creating a notification inside a BroadcastReceiver via this code:
6 Answers
6
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Understanding the ngRepeat 'track by' expression
...
You can track by $index if your data source has duplicate identifiers
e.g.: $scope.dataSource: [{id:1,name:'one'}, {id:1,name:'one too'}, {id:2,name:'two'}]
You can't iterate this collection while using 'id' as identifier (duplicate id:1).
WON'T WORK:
<element ng-repeat="item...
How to efficiently compare two unordered lists (not sets) in Python?
a & b should be considered equal, because they have exactly the same elements, only in different order.
10 Answers
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jQuery how to find an element based on a data-attribute value?
...value of current into an Attribute Equals selector:
$("ul").find(`[data-slide='${current}']`)
For older JavaScript environments (ES5 and earlier):
$("ul").find("[data-slide='" + current + "']");
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jQuery $(“#radioButton”).change(…) not firing during de-selection
...ut[name=someRadioGroup]:radio").change(function () {
Here's a working jsfiddle example (updated from Chris Porter's comment.)
Per @Ray's comment, you should avoid using names with . in them. Those names work in jQuery 1.7.2 but not in other versions (jsfiddle example.).
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How to 'insert if not exists' in MySQL?
...Imagine we have a table:
CREATE TABLE `transcripts` (
`ensembl_transcript_id` varchar(20) NOT NULL,
`transcript_chrom_start` int(10) unsigned NOT NULL,
`transcript_chrom_end` int(10) unsigned NOT NULL,
PRIMARY KEY (`ensembl_transcript_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
Now imagine t...
How to find a text inside SQL Server procedures / triggers?
...OM sys.sql_modules m
INNER JOIN sys.objects o ON m.object_id=o.object_id
WHERE m.definition Like '%'+@Search+'%'
ORDER BY 2,1
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:not(:empty) CSS selector is not working?
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Being a void element, an <input> element is considered empty by the HTML definition of "empty", since the content model of all void elements is always empty. So they will always match the :empty pseudo-class, whether or not they ...
Use “ENTER” key on softkeyboard instead of clicking button
...e enter key or the d-pad is clicked.
addCourseText = (EditText) findViewById(R.id.clEtAddCourse);
addCourseText.setOnKeyListener(new OnKeyListener()
{
public boolean onKey(View v, int keyCode, KeyEvent event)
{
if (event.getAction() == KeyEvent.ACTION_DOWN)
{
swi...