大约有 40,000 项符合查询结果（耗时：0.0354秒） [XML]
TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi
...e
cls.chamber.save()
cls.localauth.active = True
cls.localauth.save() <---- error here
cls.lawfirm.active = True
cls.lawfirm.save()
My solution was to use update_or_create instead:
cls.localauth,_ = Organisation.objects.update_or_create(organisation_type=cls.orgtypeLA, name='LA for test',...
Regular expression to match a line that doesn't contain a word
...he does not end version could be done using negative lookbehind as: (.*)(?<!hede)$. @Nyerguds' version would work as well but completely misses the point on performance the answer mentions.
– thisismydesign
Sep 14 '17 at 16:53
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Are database triggers evil? [closed]
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>>>The problems with triggers is people. Yeah, if only people could code in assembly, work with crappy GUI, guess correctly whether to push or pull a badly designed door... Any "feature" people get repeatedly wrong is...
Copy a variable's value into another
...n that will do the trick. Or since you're using jQuery, you can use the built-in $.extend() function. Details above. :-)
– Michael Geary
Sep 17 '13 at 15:46
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What's the point of NSAssert, actually?
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> You should take out NSAssert for release. This is debatable. I always release my applications with assertions enabled, and this is standard practice for a lot of software, Apple for example does this. As soon as your pr...
How to list the properties of a JavaScript object?
...ern browsers (IE9+, FF4+, Chrome5+, Opera12+, Safari5+) you can use the built in Object.keys method:
var keys = Object.keys(myObject);
The above has a full polyfill but a simplified version is:
var getKeys = function(obj){
var keys = [];
for(var key in obj){
keys.push(key);
}
r...
How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
...2/12/mamp-pro-slow-name-resolving-with-local-vhosts-in-lion-fix/
"By default, any hostname ending in .local is treated as a Bonjour host rather than by querying the DNS server entries in Network preferences.
To fix this problem (without having to rename each vhost) you need to add IPv6 entries for...
Why doesn't ruby support method overloading?
...ument-based dispatch in a language with optional arguments and variable-length argument lists, is very hard to get right, and even harder to keep it understandable. Even in languages with static argument-based dispatch and without optional arguments (like Java, for example), it is sometimes almost i...
Linq Syntax - Selecting multiple columns
...haining equivalent would be:-
var employee = _db.EMPLOYEEs
.Where(x => x.EMAIL == givenInfo || x.USER_NAME == givenInfo)
.Select(x => new { x.EMAIL, x.ID });
AFAIK, the declarative LINQ syntax is converted to a method call chain similar to this when it is compiled.
UPDATE
If you w...
Java: Get month Integer from Date
...ew Date();
LocalDate localDate = date.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
int month = localDate.getMonthValue();
Note that month values are here given from 1 to 12 contrary to cal.get(Calendar.MONTH) in adarshr's answer which gives values from 0 to 11.
But as Basil Bourque s...