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In Django, how does one filter a QuerySet with dynamic field lookups?
...
A simplified example:
In a Django survey app, I wanted an HTML select list showing registered users. But because we have 5000 registered users, I needed a way to filter that list based on query criteria (such as just people who completed a certain workshop). In order for the survey eleme...
CSS :after not adding content to certain elements
... form elements (<button>, <textarea>,
<input>, and <select> tags). All other elements types can be referred
to as non-replaced elements.
:before and :after only work with non-replaced elements.
From the spec:
Note. This specification does not fully define the inter...
Difference between author and committer in Git?
...oject maintainer, and who merged the patch
See for example this randomly selected patch and the corresponding commit:
https://lkml.org/lkml/2018/1/25/568
https://github.com/torvalds/linux/commit/5beda7d54eafece4c974cfa9fbb9f60fb18fd20a
Git web interfaces like GitHub and GitLab may or may not g...
Explaining difference between automaticallyAdjustsScrollViewInsets, extendedLayoutIncludesOpaqueBars
...r view controllers start below the status bar (and above the bottom bar):
Select the view controller in IB,
In the attributes inspector, deselect 'Extend Edges - Under Top Bars' and 'Extend Edges - Under Bottom Bars'.
share...
How to have an auto incrementing version number (Visual Studio)? [duplicate]
...item” for each projects, navigate to the folder with T4
template file, select corresponding “.cs” file and add it as a link.
That will do!
What I like about this approach is that it is lightweight (no custom
MsBuild tasks), and auto-generated version information is not added to
...
Rich vs Anemic Domain Model [closed]
...or example, if you pass Order to view, then you can use needToDeliver() of selected Order to display list of items to be confirmed by user before they click on save button to persist the Order.
Responding To Comment
This is how I use the domain class from controller:
def save = {
Order order =...
Path of assets in CSS files in Symfony 2
...css, b.css, c.css, etc: all identical, just changing the color and the CSS selector.
.a
{
background: red url('../images/devil.png');
}
The "directories" structure is:
Directories
All this came, because I did not want the individual original files exposed to the public, specially if I want...
Good MapReduce examples [closed]
...erations that you can do in MapReduce is the set of normal SQL operations: SELECT, SELECT WHERE, GROUP BY, ect.
Another good example is matrix multiply, where you pass one row of M and the entire vector x and compute one element of M * x.
...
Constructor overloading in Java - best practice
...ht be JTable - the primary constructor takes a TableModel (plus column and selection models) and the other constructors call this primary constructor.
For subclasses where the superclass already has overloaded constructors, I would tend to assume that it is reasonable to treat any of the parent cla...
Implementing MVC with Windows Forms
... bit complex, but it can work well for applications that have a good fit.
Selecting an MVC/MVP Implementation for a Winforms Project give an overview that is worth reading. A lot of people like PureMVC. I have never used it, but I would look at it the next time I need a MVC framework.
"Presenter F...