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Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
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thanks @hhaamu. Yep did try the docs but your above is much more concise.
– Thomas Browne
Jul 28 '09 at 20:17
119
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How to percent-encode URL parameters in Python?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
What is the Invariant Culture?
...ll always work because you serialized with the same culture << this didn't make sense to me, I think I misunderstood something. If using CultureInfo.InvariantCulture works because you serialized with the same culture....then isn't it the same as using CultureInfo.CurrentCulture?
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Angularjs Template Default Value if Binding Null / Undefined (With Filter)
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Turns out all I needed to do was wrap the left-hand side of the expression in soft brackets:
<span class="gallery-date">{{(gallery.date | date:'mediumDate') || "Various"}}</span>
share
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What is the difference between JavaConverters and JavaConversions in Scala?
...a 2.13.0. Use scala.jdk.CollectionConverters instead.
JavaConversions provide a series of implicit methods that convert between a Java collection and the closest corresponding Scala collection, and vice versa. This is done by creating wrappers that implement either the Scala interface and forward t...
URL-parameters and logic in Django class-based views (TemplateView)
...View which means that you would do the logic in your get_context_data override.
– Ngenator
Apr 2 '13 at 12:58
4
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How can I format patch with what I stash away
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@silverburgh: I had a quick look through man patch and I didn't see any options for interactive patch application. However, since patch files are plain text files themselves, usually what one would do is edit the patch in a text editor to clip out the relevant parts to apply with pa...
How to call a method defined in an AngularJS directive?
...oller $scope as the directive, just define function updateMap on $scope inside the link function. Your controller can then call that function when the action button is clicked.
<div ng-controller="MyCtrl">
<map></map>
<button ng-click="updateMap()">call updateMap()&...
Do I set properties to nil in dealloc when using ARC?
...hat it shouldn't touch in dealloc (e.g. if your class, or a subclass, overrides the setter). Similarly it may trigger KVO notifications. Releasing the ivar instead avoids these undesired behaviors.
In ARC, the system automatically releases any ivars for you, so if that's all you're doing you don't ...
Image loaded event in for ng-src in AngularJS
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Here is an example how to call image onload http://jsfiddle.net/2CsfZ/2/
Basic idea is create a directive and add it as attribute to img tag.
JS:
app.directive('imageonload', function() {
return {
restrict: 'A',
link: function(scope, element, attrs) {
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