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How to rename items in values() in Django?
... a bit hacky, but you could use the extra method:
MyModel.objects.extra(
select={
'renamed_value': 'cryptic_value_name'
}
).values(
'renamed_value'
)
This basically does SELECT cryptic_value_name AS renamed_value in the SQL.
Another option, if you always want the renamed version but the d...
Remove columns from dataframe where ALL values are NA
...
dplyr now has a select_if verb that may be helpful here:
library(dplyr)
temp <- data.frame(x = 1:5, y = c(1,2,NA,4, 5), z = rep(NA, 5))
not_all_na <- function(x) any(!is.na(x))
not_any_na <- function(x) all(!is.na(x))
> temp
...
Sublime as default editor
... my answer, I have just googled it:
Open regedit (Win+R, type "regedit", select OK).
Navigate to HKEY_CLASSES_ROOT\Applications\sublime_text.exe\shell\open\command
Verify that the path is accurate, correct it if it is not. Exit regedit.
Open task manager via Ctrl+Alt+Del (or Ctrl+Shift+Esc for lat...
Changing the status bar text color in splash screen iOS 7
...ng things for getting light color status bar throughout the application.
Select the name of the project in the project navigator.
Select the name of a target from the list in the left column of the project editor.
Click General at the top of the project editor.
Set Status Bar Style -> Light
I...
What are the most-used vim commands/keypresses?
...navigate text, 10 or so keys to start adding text, and 18 ways to visually select an inner block. Or do you!?
10 Answers
...
TFS Code Reviews - Show updated files in response to comments
...e this:
Person 1 requests a code review.
Person 2 adds comments and selects "Needs Work."
Person 1 makes the necessary changes.
Person 1 Updates the shelveset associated with the code review
Person 1 adds comments to continue the discussion
Repeat steps 2 - 5 until accepted
H...
MIN/MAX vs ORDER BY and LIMIT
...oks like MIN() is able to simply pluck the smallest value from the index ('Select tables optimized away' and 'NULL' rows) whereas the SORT and LIMIT still needs needs to do an ordered traversal of the index (106,000 rows). The actual performance impact is probably negligible.
It looks like MIN() i...
ng-repeat :filter by single field
...
Be careful with angular filter. If you want select specific value in field, you can't use filter.
Example:
javascript
app.controller('FooCtrl', function($scope) {
$scope.products = [
{ id: 1, name: 'test', color: 'lightblue' },
{ id: 2, name: 'bob',...
整合phpcms v9和discuz X3.2实现同步登陆、退出免激活 - 更多技术 - 清泛网...
...cookietime = 31536000;
$uid = intval($get['uid']);
$query = DB::query("SELECT uid, username, password FROM ".DB::table('common_member')." WHERE uid='$uid'");
if ($member = DB::fetch($query))
{
dsetcookie('auth', authcode("$member[password]\t$member[uid]", 'ENCODE'), $cookietime);
}else
...
How to set value of input text using jQuery
...
Your selector is retrieving the text box's surrounding <div class='textBoxEmployeeNumber'> instead of the input inside it.
// Access the input inside the div with this selector:
$(function () {
$('.textBoxEmployeeNumber i...