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How to delete a record in Django models?
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There are a couple of ways:
To delete it directly:
Som>me m>Model.objects.filter(id=id).delete()
To delete it from an instance:
instance = Som>me m>Model.objects.get(id=id)
instance.delete()
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Is there a way to pass the DB user password into the command line tool mysqladmin?
I currently use the following but it ALWAYS prompts m>me m> to manually type the password. Is there any way to pass it in on the command line when launching the executable?
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How do I create a variable number of variables?
...': 2, 'x': 1, 'z': 3}
>>> dct["y"]
2
You can use variable key nam>me m>s to achieve the effect of variable variables without the security risk.
>>> x = "spam"
>>> z = {x: "eggs"}
>>> z["spam"]
'eggs'
For cases where you're thinking of doing som>me m>thing like
var1 = ...
IntelliJ IDEA JDK configuration on Mac OS
I am using IntelliJ IDEA 10. Every tim>me m> when I create a new project, it is asking m>me m> to choose JDK for this project. Anyone know how I can configure it and make it easy to use?
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What does SQL clause “GROUP BY 1” m>me m>an?
Som>me m>one sent m>me m> a SQL query where the GROUP BY clause consisted of the statem>me m>nt: GROUP BY 1 .
6 Answers
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PHP: Count a stdClass object
...y, not the properties on an object, (unless it's a custom object that implem>me m>nts the Countable interface). Try casting the object, like below, as an array and seeing if that helps.
$total = count((array)$obj);
Simply casting an object as an array won't always work but being a simple stdClass obje...
jQuery slideUp().remove() doesn't seem to show the slideUp animation before remove occurs
...peeds need to either be in milliseconds or they will default to 400. keyfram>me m>sandcode.com/resources/javascript/deconstructed/jquery/…
– bendman
Jan 24 '14 at 12:17
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Apply style to only first level of td tags
...owser (which you probably do, alas), all you can do is select the inner elem>me m>nt separately and un-set the style:
.MyClass td { border: solid 1px red; }
.MyClass td td { border: none; }
*Note that the first example references a tbody elem>me m>nt not found in your HTML. It should have been in your HT...
Why can't yield return appear inside a try block with a catch?
...practicality rather than feasibility. I suspect there are very, very few tim>me m>s where this restriction is actually an issue that can't be worked around - but the added complexity in the compiler would be very significant.
There are a few things like this that I've already encountered:
Attributes n...
Why is 'this' a pointer and not a reference?
... this question C++ pros and cons and got this doubt while reading the comm>me m>nts.
2 Answers
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