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Django ManyToMany filter()
...d it.
the above code will end up generating SQL that looks something like:
SELECT * FROM users WHERE id IN (SELECT user_id FROM userzones WHERE zone_id IN (1,2,3))
which is nice because it doesn't have any intermediate joins that could cause duplicate users to be returned
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Addressing localhost from a VirtualBox virtual machine [closed]
...-> Network -> Host-only Networks -> click the "+" icon. Click OK.
Select your box and click the "Settings" icon -> Network -> Adapter 2 -> On the "Attached to:" dropdown, select "Host-only Adapter" and your network (vboxnet0) should show up below by default. Click OK.
Once you star...
No provider for “framework:jasmine”! (Resolving: framework:jasmine)
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My problem was the selected "Karma package" in the IntelliJ run configuration. I did not select the project's karma package in the project's "node_module" folder:
shar...
How do I insert datetime value into a SQLite database?
...liably compare dates with different precision using lexical ordering, e.g "SELECT '2007-01-02 10:00:00' > '2007-01-02 10:00';" returns 1 but "SELECT datetime('2007-01-02 10:00:00') > datetime('2007-01-02 10:00');" returns 0.
– Shane
Mar 21 '14 at 17:17
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How to configure PostgreSQL to accept all incoming connections
...s you have to reload the configuration. One way to do this is execute this SELECT as a superuser.
SELECT pg_reload_conf();
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Getting “type or namespace name could not be found” but everything seems ok?
...To do this:
I right-clicked on my Solution in the Solution Explorer and selected
"Properties"
Then in "Common Properties" I selected "Project Dependencies".
Then in the Projects drop-down menu I selected the project that
relied on the library, and
Checked the box next to the library found under "...
What is The difference between ListBox and ListView
...ew, but you can easily create your own.
Another difference is the default selection mode: it's Single for a ListBox, but Extended for a ListView
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Check if a div exists with jquery [duplicate]
...myDiv.length){
//you can now reuse $myDiv here, without having to select it again.
}
});
A selector always returns a jQuery object, so there shouldn't be a need to check against null (I'd be interested if there is an edge case where you need to check for null - but I don't think the...
What is the difference between jQuery's mouseout() and mouseleave()?
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Event Mouseout will trigger when mouse leaves the selected element and also when mouse leaves it's child elements also.
Event Mouseleave element will trigger when pointer will leave the selected element only.
Reference: W3School
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Django in / not in query
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table1.objects.extra(where=["table1.id NOT IN (SELECT table2.key_to_table1 FROM table2 WHERE table2.id = some_parm)"])
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