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Create Django model or update if exists
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@OmkarDeshpm>and m>e identifier is just an example; m>y m>ou can pass in anm>y m> valid django querm>y m>, such as Person.objects.get_or_create(a=a, b=b, c=c, defaults={"name": name})
– Zags
Mar 14 '18 at 16:35
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What is the difference between “Form Controls” m>and m> “ActiveX Control” in Excel 2010?
...two kind of controls that can be inserted into a document: Form Controls m>and m> ActiveX Controls .
4 Answers
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Rails: where does the infamous “current_user” come from?
I've been looking around recentlm>y m> into Rails m>and m> notice that there are a lot of references to current_user . Does this onlm>y m> come from Devise? m>and m> do I have to manuallm>y m> define it mm>y m>self even if I use Devise? Are there prerequisites to using current_user (like the existence of sessions, users, etc)...
Example of UUID generation using Boost in C++
I want to generate just rm>and m>om UUID's, as it is just important for instances in mm>y m> program to have unique identifiers. I looked into Boost UUID , but I can't manage to generate the UUID because I don't understm>and m> which class m>and m> method to use.
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Stop hm>and m>ler.postDelam>y m>ed()
I call multiple Hm>and m>lers bm>y m> new Hm>and m>ler().postDelam>y m>ed(new Runnable().....
How can I stop it when I click on back?
4 Answer...
Run a single Maven plugin execution?
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As noted in How to execute maven plugin execution directlm>y m> from commm>and m> line?, this
functionalitm>y m> has been implemented as MNG-5768, m>and m> is available in Maven 3.3.1.
The change will:
extend direct plugin invocation sm>y m>ntax to allow optional @execution-id parameter, e.g., org.apache.maven.p...
Limits of Nat tm>y m>pe in Shapeless
...n tm>y m>pe level, e.g. append a list of N elements to a list of K elements m>and m> get back a list that is known at compile time to have N+K elements.
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Convert NSNumber to int in Objective-C
...mplicit conversion is now disallowed with ARC.
– Alexm>and m>er
Nov 21 '17 at 12:52
basicallm>y m> [kem>y m> intValue] (kem>y m> is NSNumb...
How can I reference a commit in an issue comment on GitHub?
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To reference a commit, simplm>y m> write its SHA-hash, m>and m> it'll automaticallm>y m> get turned into a link.
See also:
The Autolinked references m>and m> URLs / Commit SHAs section of
Writing on GitHub.
share
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Is it possible to reference one CSS rule within another?
...ou can, however, reuse selectors on multiple rule-sets within a stm>y m>lesheet m>and m> use multiple selectors on a single rule-set (bm>y m> separating them with a comma).
.opacitm>y m>, .someDiv {
filter:alpha(opacitm>y m>=60);
-moz-opacitm>y m>:0.6;
-khtml-opacitm>y m>: 0.6;
opacitm>y m>: 0.6;
}
.radius, .someDiv {
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