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django admin - add custom form fields that are not part of the model
...extra_field = self.cleaned_data.get('extra_field', None)
# ...do something with extra_field here...
return super(YourModelForm, self).save(commit=commit)
class Meta:
model = YourModel
To have the extra fields appearing in the admin just:
edit your admin.py and set th...
Difference of Maven JAXB plugins
I have determined that two JAXB plugins for Maven 2 exist, with some different configurations.
6 Answers
...
Handle ModelState Validation in ASP.NET Web API
...Http;
using System.Web.Http.Controllers;
using System.Web.Http.Filters;
namespace System.Web.Http.Filters
{
public class ValidationActionFilter : ActionFilterAttribute
{
public override void OnActionExecuting(HttpActionContext actionContext)
{
var modelState = ac...
Resizing an iframe based on content
...ion. Content from other applications (on other domains) is shown using iframes.
20 Answers
...
How can I see what I am about to push with git?
...ish given will only display the differences w/regards to HEAD. I think you meant git diff [--stat] --cached origin/master, assuming the origin's main branch is master
– mfontani
Sep 3 '10 at 15:18
...
Reading a UTF8 CSV file with Python
...ython (only French and/or Spanish characters). Based on the Python 2.5 documentation for the csvreader ( http://docs.python.org/library/csv.html ), I came up with the following code to read the CSV file since the csvreader supports only ASCII.
...
Cross-thread operation not valid: Control accessed from a thread other than the thread it was create
...
As per Prerak K's update comment (since deleted):
I guess I have not presented the question properly.
Situation is this: I want to load data into a global variable based on the value of a control. I don't want to change the value of a control from the ...
Strip HTML from Text JavaScript
... the browser do it for you...
function stripHtml(html)
{
var tmp = document.createElement("DIV");
tmp.innerHTML = html;
return tmp.textContent || tmp.innerText || "";
}
Note: as folks have noted in the comments, this is best avoided if you don't control the source of the HTML (for exampl...
Regular expression to match a line that doesn't contain a word
...g, or line without a line break, not containing the (sub)string 'hede'. As mentioned, this is not something regex is "good" at (or should do), but still, it is possible.
And if you need to match line break chars as well, use the DOT-ALL modifier (the trailing s in the following pattern):
/^((?!he...
What are the use cases of Graph-based Databases (http://neo4j.org/)? [closed]
... queries in SQL.
The main advantages of the graph model were rapid development time and flexibility. We could quickly add new functionality without impacting existing deployments. If a potential customer wanted to import some of their own data and graft it on top of our model, it could usually be d...