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Create Django model or update if exists
...large collection it won't scale well. update_or_create always first runs a SELECT and thereafter an UPDATE.
for the_bar in bars:
updated_rows = SomeModel.objects.filter(bar=the_bar).update(foo=100)
if not updated_rows:
# if not exists, create new
SomeModel.object...
iOS Tests/Specs TDD/BDD and Integration & Acceptance Testing
...discount code; it may differ if the specified item can't be shipped by the selected shipping method; etc. As these possible conditions intersect with one another you end up with a geometrically increasing number of possible contexts; in xUnit-style testing this often leads to a lot of methods with ...
Bootstrap full-width text-input within inline-form
...
The bootstrap docs says about this:
Requires custom widths Inputs, selects, and textareas are 100% wide by
default in Bootstrap. To use the inline form, you'll have to set a
width on the form controls used within.
The default width of 100% as all form elements gets when they got the cl...
What is scope/named_scope in rails?
...Zombie.rotting.fresh.recent.limit(3)
It translates to the below in SQL,
select "zombies.*" from "zombies" where "zombies"."rotting" = 't' and (age<20) order by create_at desc limit 3
Example above is based on rails 4 syntax
...
How to initialize a JavaScript Date to a particular time zone
...e database can get a bit large. Some of these libraries also allow you to selectively reduce the data set, either by which time zones are supported and/or by the range of dates you can work with.
Here are the libraries to consider:
Intl-based Libraries
New development should choose from one of t...
Mapping composite keys using EF code first
...f(ColumnAttribute.Order))
.TypedValue.Value ?? 0)
.Select(x => x.Name)
.ToArray();
// apply the keys to the model builder
modelBuilder.Entity(entity.ClrType).HasKey(orderedKeys);
}
I haven't fully tested this in all situations, but it works in my basic t...
Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?
...est choice. I suppose the main point is that the HTML element shouldn't be selected based on its default presentation appearance, but rather its significance to the structure of the document.
– crush
Sep 3 '14 at 13:08
...
What is the difference between an Azure Web Site and an Azure Web Role
...al Network support
Here's a screengrab I took from the Web Sites gallery selection form:
I think Web Apps are a great way to get up and running quickly, where you can move from shared to reserved resources. Once you outgrow this, you can then move up to Web Roles and expand as you need.
...
How to access route, post, get etc. parameters in Zend Framework 2
...ue
To get the value of a named parameter in a controller, you will need to select the appropriate method for the type of parameter you are looking for and pass in the name.
Examples:
$this->params()->fromPost('paramname'); // From POST
$this->params()->fromQuery('paramname'); // From ...
CSS I want a div to be on top of everything
...ou need a non-static positioning scheme.
Add position:relative; to a rule selecting the element you want to be on top
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